OSPFv2 Router Information LSA (`ospfv2_ri_lsa`)

Layer: L3 (network)
Header: variable length
Notes: OSPF Opaque / SR, BGP MP / VPN / EVPN (P2)

Reached from

Lower layer	Selector	Value
`ospfv2_opaque_lsa`	`opaque_type`	4 (0x04)

Fields

Field	Type	Default	Auto	Description
`tlvs`	`tlv` — rest of the PDU	4 items		TLVs of the opaque LSA (16-bit type and length, values padded to 4 octets; lengths Auto).

`tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Each item is zero-padded to a multiple of 4 octets (not counted in the length)
Unknown types are kept as raw value octets.

Type	Name	Value fields	Description
1 (0x0001)	`informational_capabilities`	`capabilities`
2 (0x0002)	`functional_capabilities`	`capabilities`
7 (0x0007)	`hostname`	`hostname`
8 (0x0008)	`sr_algorithm`	`algorithms`
9 (0x0009)	`sid_label_range`	`range_size`, `reserved`, `sub_tlvs`
14 (0x000e)	`sr_local_block`	`range_size`, `reserved`, `sub_tlvs`
15 (0x000f)	`srms_preference`	`preference`, `reserved`

`tlvs` › `informational_capabilities`

Field	Type	Default	Auto	Description
`capabilities`	`flags(32)`

`tlvs` › `informational_capabilities` › `capabilities`

Bit	Mask	Name
31	2147483648 (0x80000000)	`graceful_restart`
30	1073741824 (0x40000000)	`graceful_restart_helper`
29	536870912 (0x20000000)	`stub_router`
28	268435456 (0x10000000)	`traffic_engineering`
27	134217728 (0x08000000)	`p2p_over_lan`
26	67108864 (0x04000000)	`experimental_te`

`tlvs` › `functional_capabilities`

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

`tlvs` › `hostname`

Field	Type	Default	Auto	Description
`hostname`	`bytes` — rest of the PDU

`tlvs` › `sr_algorithm`

Field	Type	Default	Auto	Description
`algorithms`	`list<uint(8)>` — rest of the PDU

`tlvs` › `sid_label_range`

Field	Type	Default	Auto	Description
`range_size`	`uint(24)`
`reserved`	`uint(8)`
`sub_tlvs`	`tlv` — rest of the PDU

`tlvs` › `sid_label_range` › `sub_tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Each item is zero-padded to a multiple of 4 octets (not counted in the length)
Unknown types are kept as raw value octets.

Type	Name	Value fields	Description
1 (0x0001)	`sid_label`	`label`; when the value is 3 octets
1 (0x0001)	`sid_label_index`	`index`; when the value is 4 octets

`tlvs` › `sid_label_range` › `sub_tlvs` › `sid_label`

Field	Type	Default	Auto	Description
`label`	`uint(24)`

`tlvs` › `sid_label_range` › `sub_tlvs` › `sid_label_index`

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

`tlvs` › `sr_local_block`

Field	Type	Default	Auto	Description
`range_size`	`uint(24)`
`reserved`	`uint(8)`
`sub_tlvs`	`tlv` — rest of the PDU

`tlvs` › `sr_local_block` › `sub_tlvs`

Type 16 bits, length 16 bits.
The length counts the value only.
Each item is zero-padded to a multiple of 4 octets (not counted in the length)
Unknown types are kept as raw value octets.

Type	Name	Value fields	Description
1 (0x0001)	`sid_label`	`label`; when the value is 3 octets
1 (0x0001)	`sid_label_index`	`index`; when the value is 4 octets

`tlvs` › `sr_local_block` › `sub_tlvs` › `sid_label`

Field	Type	Default	Auto	Description
`label`	`uint(24)`

`tlvs` › `sr_local_block` › `sub_tlvs` › `sid_label_index`

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

`tlvs` › `srms_preference`

Field	Type	Default	Auto	Description
`preference`	`uint(8)`
`reserved`	`uint(24)`

Sample templates

ospfv2-lsu-ri-sr — templates/protocols/routing/ospfv2-lsu-ri-sr.wpg.yaml