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You are here: Home / ICND2 / Day 33 – EtherChannels and Link Aggregation Protocols / Day 33 Tasks / EtherChannel Load-Distribution Methods

EtherChannel Load-Distribution Methods

For both PAgP and LACP EtherChannels, Catalyst switches use a polymorphic algorithm that utilises key fields from the header of the packet to generate a hash, which is then matched to a physical link in the EtherChannel group. In other words, the switch distributes the traffic load across the links in an EtherChannel by reducing part of the binary pattern formed from the addresses in the frame to a numerical value that selects one of the links in the EtherChannel.

This operation can be performed on MAC addresses or IP addresses and can be based solely on source or destination . . .

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