IEEE 802.3 (`dot3`)

Layer: L2 (data link)
Header: 14 octets (fixed)
Minimum frame: 60 octets
Notes: L2 control protocols

Reached from

Lower layer	Selector	Value
`ethernet2`	`ethertype`	0 (0x0000) – 1535 (0x05ff) (re-decodes this layer)

Field	Type	Default	Auto	Description
`dst`	`mac`	`ff:ff:ff:ff:ff:ff`		Destination MAC address.
`src`	`mac`	`02:00:00:00:00:01`		Source MAC address.
`length`	`uint(16)`		Length of the payload in octets	Length of the LLC data in octets (Auto; at most 1500).

The next layer is selected by length; when the field is Auto the builder writes the value of the protocol stacked above.

Value	Protocol	Note
(any other value)	`llc`

Level	Rule
warning	`length` within 0..1500

interop-isis-l2-lan-hello-up — templates/interop/isis-l2-lan-hello-up.wpg.yaml
dot3-llc-osi — templates/protocols/l2/dot3-llc-osi.wpg.yaml
dot3-llc-snap-frame — templates/protocols/l2/dot3-llc-snap.wpg.yaml
dot3-llc-frame — templates/protocols/l2/dot3-llc.wpg.yaml
clnp-dt — templates/protocols/l3/clnp-dt.wpg.yaml
clnp-er — templates/protocols/l3/clnp-er.wpg.yaml
clnp-erq — templates/protocols/l3/clnp-erq.wpg.yaml
esis-esh — templates/protocols/routing/esis-esh.wpg.yaml
esis-generic — templates/protocols/routing/esis-generic.wpg.yaml
esis-ish — templates/protocols/routing/esis-ish.wpg.yaml
esis-rd — templates/protocols/routing/esis-rd.wpg.yaml
isis-generic — templates/protocols/routing/isis-generic.wpg.yaml
isis-l1-csnp — templates/protocols/routing/isis-l1-csnp.wpg.yaml
isis-l1-lan-hello — templates/protocols/routing/isis-l1-lan-hello.wpg.yaml
isis-l1-lsp — templates/protocols/routing/isis-l1-lsp.wpg.yaml
isis-l1-psnp — templates/protocols/routing/isis-l1-psnp.wpg.yaml
isis-l2-csnp — templates/protocols/routing/isis-l2-csnp.wpg.yaml
isis-l2-lan-hello — templates/protocols/routing/isis-l2-lan-hello.wpg.yaml
isis-l2-lsp — templates/protocols/routing/isis-l2-lsp.wpg.yaml
isis-l2-psnp — templates/protocols/routing/isis-l2-psnp.wpg.yaml
isis-p2p-hello — templates/protocols/routing/isis-p2p-hello.wpg.yaml