IEEE 802.3ad Link Aggregation (LAG): what it is, and what it is not

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IEEE 802.3 HSSG
802.3ad Link Aggregation
• Specified in Clause 43
• LAG is performed above the MAC
• LAG assumes all links are:
– full duplex
– point to point
– same data rate
• Provides graceful recovery from link failures
• Traffic is distributed packet by packet
• All packets associated with a given “conversation” are
transmitted on the same link to prevent mis-ordering