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I want to use linux “tc” command to filter only ISIS protocol packet. This ISIS packet can be vlan tagged or vlan untagged. format of the ISIS packet is:
| Ethernet Header (14 bytes) | Vlan Header (4 bytes) (optional) | LLC-SNAP Header (3 bytes) | ISIS Identifier (1 byte) | ISIS Data |
LLC-SNAP header has fixed value 0xFEFE03 and ISIS Id has fixed value 0x83.
how can i write tc filter command to filter only ISIS packet?
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