LDP (`ldp`)

Layer: Application and control
Header: variable length
Notes: LDP / RSVP-TE / BFD (P2)

Reached from

Lower layer	Selector	Value
`tcp`	`dst_port` / `src_port`	646 (0x0286)
`udp`	`dst_port` / `src_port`	646 (0x0286)

Fields

Field	Type	Default	Auto	Description
`version`	`uint(16)`	`1`		LDP version (1).
`pdu_length`	`uint(16)`		Length of the header in octets (`-4`)	Length of the PDU after the version and PDU length fields (Auto).
`lsr_id`	`ipv4`	`192.0.2.1`		LSR ID: the first four octets of the LDP identifier.
`label_space`	`uint(16)`	`0`		Label space ID: the last two octets of the LDP identifier (0 = platform-wide).
`messages`	`tlv` — `pdu_length - 6` octets	1 items		Messages (16-bit type with the U bit, 16-bit length of the value, message ID, TLVs): Notification, Hello, Initialization, KeepAlive, Address / Address Withdraw, Label Mapping / Request / Withdraw / Release / Abort Request. TLVs: FEC, Address List, Hop Count, Path Vector, Generic Label, Status, Common Hello / Session Parameters, transport addresses, Configuration Sequence Number. Lengths are Auto.

`messages`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
1 (0x0001)	`notification`	`message_id`, `tlvs`
256 (0x0100)	`hello`	`message_id`, `tlvs`
512 (0x0200)	`initialization`	`message_id`, `tlvs`
513 (0x0201)	`keepalive`	`message_id`, `tlvs`
768 (0x0300)	`address`	`message_id`, `tlvs`
769 (0x0301)	`address_withdraw`	`message_id`, `tlvs`
1024 (0x0400)	`label_mapping`	`message_id`, `tlvs`
1025 (0x0401)	`label_request`	`message_id`, `tlvs`
1026 (0x0402)	`label_withdraw`	`message_id`, `tlvs`
1027 (0x0403)	`label_release`	`message_id`, `tlvs`
1028 (0x0404)	`label_abort_request`	`message_id`, `tlvs`

`messages` › `notification`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	1 items

`messages` › `notification` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `notification` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `notification` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › notification › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › notification › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `notification` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `notification` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `notification` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `notification` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `notification` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `notification` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › notification › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `notification` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `notification` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `notification` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `notification` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `notification` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `notification` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `hello`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	1 items

`messages` › `hello` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `hello` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `hello` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › hello › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › hello › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `hello` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `hello` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `hello` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `hello` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `hello` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `hello` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › hello › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `hello` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `hello` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `hello` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `hello` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `hello` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `hello` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `initialization`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	1 items

`messages` › `initialization` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `initialization` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `initialization` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › initialization › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › initialization › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `initialization` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `initialization` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `initialization` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `initialization` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `initialization` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `initialization` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › initialization › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `initialization` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `initialization` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `initialization` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `initialization` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `initialization` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `initialization` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `keepalive`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `keepalive` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `keepalive` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `keepalive` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › keepalive › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › keepalive › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `keepalive` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `keepalive` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `keepalive` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `keepalive` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `keepalive` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `keepalive` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › keepalive › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `keepalive` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `keepalive` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `keepalive` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `keepalive` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `keepalive` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `keepalive` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `address`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `address` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `address` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `address` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › address › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › address › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `address` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `address` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `address` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `address` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `address` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `address` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › address › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `address` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `address` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `address` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `address` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `address` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `address` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `address_withdraw`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `address_withdraw` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `address_withdraw` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `address_withdraw` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › address_withdraw › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › address_withdraw › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `address_withdraw` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `address_withdraw` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `address_withdraw` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `address_withdraw` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `address_withdraw` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `address_withdraw` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › address_withdraw › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `address_withdraw` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `address_withdraw` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `address_withdraw` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `address_withdraw` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `address_withdraw` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `address_withdraw` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `label_mapping`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `label_mapping` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `label_mapping` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `label_mapping` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › label_mapping › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › label_mapping › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `label_mapping` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `label_mapping` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `label_mapping` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `label_mapping` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `label_mapping` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `label_mapping` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › label_mapping › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `label_mapping` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `label_mapping` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `label_mapping` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `label_mapping` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `label_mapping` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `label_mapping` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `label_request`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `label_request` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `label_request` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `label_request` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › label_request › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › label_request › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `label_request` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `label_request` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `label_request` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `label_request` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `label_request` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `label_request` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › label_request › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `label_request` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `label_request` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `label_request` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `label_request` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `label_request` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `label_request` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `label_withdraw`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `label_withdraw` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `label_withdraw` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `label_withdraw` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › label_withdraw › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › label_withdraw › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `label_withdraw` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `label_withdraw` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `label_withdraw` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `label_withdraw` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `label_withdraw` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `label_withdraw` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › label_withdraw › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `label_withdraw` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `label_withdraw` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `label_withdraw` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `label_withdraw` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `label_withdraw` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `label_withdraw` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `label_release`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `label_release` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `label_release` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `label_release` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › label_release › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › label_release › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `label_release` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `label_release` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `label_release` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `label_release` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `label_release` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `label_release` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › label_release › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `label_release` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `label_release` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `label_release` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `label_release` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `label_release` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `label_release` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

`messages` › `label_abort_request`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`	`1`
`tlvs`	`tlv` — rest of the PDU	`[]`

`messages` › `label_abort_request` › `tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Unknown types are kept as raw value octets.

Type	Name	Value fields
256 (0x0100)	`fec_wildcard`	`element_type`; when the value starts with `01`
256 (0x0100)	`fec`	`elements`
257 (0x0101)	`address_list`	`address_family`, `addresses`; when the value starts with `00 01`
257 (0x0101)	`address_list_ipv6`	`address_family`, `addresses`; when the value starts with `00 02`
259 (0x0103)	`hop_count`	`hop_count`
260 (0x0104)	`path_vector`	`lsr_ids`
512 (0x0200)	`generic_label`	`reserved`, `label`
768 (0x0300)	`status`	`e`, `f`, `status_code`, `message_id`, `message_type`
1024 (0x0400)	`common_hello_parameters`	`hold_time`, `t`, `r`, `g`, `reserved`
1025 (0x0401)	`ipv4_transport_address`	`address`
1026 (0x0402)	`configuration_sequence_number`	`sequence_number`
1027 (0x0403)	`ipv6_transport_address`	`address`
1280 (0x0500)	`common_session_parameters`	`protocol_version`, `keepalive_time`, `a`, `d`, `reserved`, `pv_lim`, `max_pdu_length`, `receiver_lsr_id`, `receiver_label_space`
1536 (0x0600)	`label_request_message_id`	`message_id`

`messages` › `label_abort_request` › `tlvs` › `fec_wildcard`

Field	Type	Default	Auto	Description
`element_type`	`uint(8)`	`1`

`messages` › `label_abort_request` › `tlvs` › `fec`

Field	Type	Default	Auto	Description
`elements`	`list<struct>` — rest of the PDU

messages › label_abort_request › tlvs › fec › elements

Each item is a group of the fields below.

Field	Type	Default
`element_type`	`uint(8)`	`2`
`address_family`	`enum(16)`	`1` (ipv4)
`prefix_length`	`uint(8)`
`prefix`	`bytes` — `(prefix_length + 7) / 8` octets

messages › label_abort_request › tlvs › fec › elements › address_family

Value	Name
1 (0x0001)	`ipv4`
2 (0x0002)	`ipv6`

`messages` › `label_abort_request` › `tlvs` › `address_list`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`1`
`addresses`	`list<ipv4>` — rest of the PDU

`messages` › `label_abort_request` › `tlvs` › `address_list_ipv6`

Field	Type	Default	Auto	Description
`address_family`	`uint(16)`	`2`
`addresses`	`list<ipv6>` — rest of the PDU

`messages` › `label_abort_request` › `tlvs` › `hop_count`

Field	Type	Default	Auto	Description
`hop_count`	`uint(8)`	`1`

`messages` › `label_abort_request` › `tlvs` › `path_vector`

Field	Type	Default	Auto	Description
`lsr_ids`	`list<ipv4>` — rest of the PDU

`messages` › `label_abort_request` › `tlvs` › `generic_label`

Field	Type	Default	Auto	Description
`reserved`	`uint(12)`	`0`
`label`	`uint(20)`	`16`

`messages` › `label_abort_request` › `tlvs` › `status`

Field	Type	Default
`e`	`uint(1)`	`0`
`f`	`uint(1)`	`0`
`status_code`	`enum(30)`	`0` (success)
`message_id`	`uint(32)`
`message_type`	`uint(16)`

messages › label_abort_request › tlvs › status › status_code

Value	Name
0 (0x00000000)	`success`
1 (0x00000001)	`bad_ldp_identifier`
2 (0x00000002)	`bad_protocol_version`
3 (0x00000003)	`bad_pdu_length`
4 (0x00000004)	`unknown_message_type`
5 (0x00000005)	`bad_message_length`
6 (0x00000006)	`unknown_tlv`
7 (0x00000007)	`bad_tlv_length`
8 (0x00000008)	`malformed_tlv_value`
9 (0x00000009)	`hold_timer_expired`
10 (0x0000000a)	`shutdown`
11 (0x0000000b)	`loop_detected`
12 (0x0000000c)	`unknown_fec`
13 (0x0000000d)	`no_route`
14 (0x0000000e)	`no_label_resources`
15 (0x0000000f)	`label_resources_available`
16 (0x00000010)	`session_rejected_no_hello`
17 (0x00000011)	`session_rejected_advertisement_mode`
18 (0x00000012)	`session_rejected_max_pdu_length`
19 (0x00000013)	`session_rejected_label_range`
20 (0x00000014)	`keepalive_timer_expired`
21 (0x00000015)	`label_request_aborted`
22 (0x00000016)	`missing_message_parameters`
23 (0x00000017)	`unsupported_address_family`
24 (0x00000018)	`session_rejected_bad_keepalive_time`
25 (0x00000019)	`internal_error`

`messages` › `label_abort_request` › `tlvs` › `common_hello_parameters`

Field	Type	Default
`hold_time`	`uint(16)`	`15`
`t`	`uint(1)`	`0`
`r`	`uint(1)`	`0`
`g`	`uint(1)`	`0`
`reserved`	`uint(13)`	`0`

`messages` › `label_abort_request` › `tlvs` › `ipv4_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv4`

`messages` › `label_abort_request` › `tlvs` › `configuration_sequence_number`

Field	Type	Default	Auto	Description
`sequence_number`	`uint(32)`	`1`

`messages` › `label_abort_request` › `tlvs` › `ipv6_transport_address`

Field	Type	Default	Auto	Description
`address`	`ipv6`

`messages` › `label_abort_request` › `tlvs` › `common_session_parameters`

Field	Type	Default
`protocol_version`	`uint(16)`	`1`
`keepalive_time`	`uint(16)`	`180`
`a`	`uint(1)`	`0`
`d`	`uint(1)`	`0`
`reserved`	`uint(6)`	`0`
`pv_lim`	`uint(8)`	`0`
`max_pdu_length`	`uint(16)`	`0`
`receiver_lsr_id`	`ipv4`	`192.0.2.2`
`receiver_label_space`	`uint(16)`	`0`

`messages` › `label_abort_request` › `tlvs` › `label_request_message_id`

Field	Type	Default	Auto	Description
`message_id`	`uint(32)`

Constraints

Level	Rule
warning	`version` = 1
error	header at least 10 octets
warning	header at most 4096 octets

Sample templates

interop-ldp-link-hello — templates/interop/ldp-link-hello.wpg.yaml
ldp-hello — templates/protocols/mpls/ldp-hello.wpg.yaml
ldp-initialization — templates/protocols/mpls/ldp-initialization.wpg.yaml
ldp-label-mapping — templates/protocols/mpls/ldp-label-mapping.wpg.yaml
ldp-label-withdraw — templates/protocols/mpls/ldp-label-withdraw.wpg.yaml
ldp-targeted-hello — templates/protocols/mpls/ldp-targeted-hello.wpg.yaml

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