Payload (`payload`)

Layer: Payload
Header: variable length
Generator: built-in payload generator (the fields below are parameters, not wire fields)
Notes: CLNP / ES-IS (P2), MACsec / GTPv2-C / Diameter / SIP / RTP (P2)

Reached from

No protocol of the catalog leads here: use it as the first layer or stack it explicitly.

Field	Type	Default	Description
`mode`	`enum(8)`	`0` (fixed)	How the payload is generated: fixed (data as given), pattern (data repeated to length), random (length octets from seed) or counter (data with a per-packet counter embedded).
`data`	`bytes` — rest of the PDU	`""`	Payload octets; in fixed mode cut or zero-extended to length when length is non-zero, in pattern mode the repeated unit (empty = 00 01 02 …).
`length`	`uint(32)`	`0`	Payload length in octets; 0 keeps the length of data (fixed / counter mode).
`seed`	`uint(64)`	`0`	Seed of the pseudo-random generator in random mode.
`counter_offset`	`uint(32)`	`0`	Octet offset of the embedded counter in counter mode.
`counter_width`	`enum(8)`	`4` (u32)	Width of the embedded counter: 4 or 8 octets, big endian.
`counter_value`	`uint(64)`	`0`	Counter value written per packet by the stream expander (counter mode).

Value	Name
4 (0x04)	`u32`
8 (0x08)	`u64`

eth-ii-frame — templates/protocols/l2/ethernet2.wpg.yaml
clnp-dt — templates/protocols/l3/clnp-dt.wpg.yaml
ipv4-fragments — templates/protocols/l3/ipv4-fragment.wpg.yaml
tcp-data-psh-ack — templates/protocols/l4/tcp-data.wpg.yaml
payload-counter — templates/protocols/payload/payload-counter.wpg.yaml
payload-fixed — templates/protocols/payload/payload-fixed.wpg.yaml
payload-pattern — templates/protocols/payload/payload-pattern.wpg.yaml
payload-random — templates/protocols/payload/payload-random.wpg.yaml
scenario-frame-size-sweep — templates/scenarios/frame-size-sweep.wpg.yaml
scenario-jumbo-udp-mtu-probe — templates/scenarios/jumbo-udp-mtu-probe.wpg.yaml
scenario-ping-sweep-pattern — templates/scenarios/ping-sweep-pattern.wpg.yaml