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2015-01-04 11:23:12 +01:00
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#Ethernet
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---
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2015-01-04 12:04:36 +01:00
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protocol: ðframe
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name: eth-frame
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2015-01-04 11:23:12 +01:00
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osilayer: 2
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fields:
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-
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field: destination MAC
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length: 6
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-
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field: source MAC
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length: 6
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field: vlan tag
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length: 4
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subfields:
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-
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field: tag protocol identifier (0x8100)
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length: 2
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-
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field: tag control information
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length: 2
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subfields:
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-
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field: priority code point (PCP)
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bitfield: yes
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length: 3
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-
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field: drop eligible indicator (DEI)
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bitfield: yes
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length: 1
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-
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field: VLAN identifier (VID)
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bitfield: yes
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length: 12
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-
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2015-01-04 15:14:17 +01:00
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field: protocolid
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desc: Ethertype (Eth II) or length (IEEE 802.3)
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2015-01-04 11:23:12 +01:00
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length: 2
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2015-01-04 15:14:17 +01:00
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nextlayer: yes
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2015-01-04 11:23:12 +01:00
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-
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field: data
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data: true
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-
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2015-01-04 15:14:17 +01:00
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field: CRC
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desc: FCS (32-bit CRC)
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2015-01-04 11:23:12 +01:00
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length: 4
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2015-01-04 15:14:17 +01:00
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optional: yes #most network stacks compute that automatically
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