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12
Port Trunking
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Port Trunk Features and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5
Trunk Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6
Menu: Viewing and Configuring a Static Trunk Group . . . . . . . . . 12-10
CLI: Viewing and Configuring Port Trunk Groups . . . . . . . . . . . . . 12-12
Forwarding Traffic with Distributed Trunking and
Forwarding Broadcast, Multicast, and
Using the CLI To View Port Trunks . . . . . . . . . . . . . . . . . . . . . . . . . . 12-12
Using the CLI To Configure a Static or Dynamic Trunk Group . . . 12-15
Web: Viewing Existing Port Trunk Groups . . . . . . . . . . . . . . . . . . . . 12-18
Trunk Group Operation Using LACP . . . . . . . . . . . . . . . . . . . . . . . . . 12-19
Default Port Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-22
LACP Notes and Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-23
Distributed Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-27
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-27
Distributed Trunking Interconnect Protocol (DTIP) . . . . . . . . . . . . 12-29
Configuring Distributed Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-30
ISC Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-30
Distributed Trunking Port Configuration . . . . . . . . . . . . . . . . . . 12-30
Displaying Distributed Trunking Information . . . . . . . . . . . . . . . . . . 12-31
Maximum DT Trunks and Links Supported . . . . . . . . . . . . . . . . . . . . 12-32
Spanning Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-32
Forwarding Unicast Traffic Upstream . . . . . . . . . . . . . . . . . . . . 12-32
Unknown Traffic Upstream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-33
Forwarding Unicast Traffic Downstream (to the Server) . . . . 12-33
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