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12
Port Trunking
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
Port Status and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2
Port Connections and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Link Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Trunk Group Boundary Requirement with IP Routing Enabled
on the Series 2800 Switch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Trunk Group Boundary Requirement for the Series 4100gl
Switch 10/100/1000 Module (J4908A)
. . . . . . . . . . . . . . . . . . . . . . 12-4
Port Trunk Options and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5
Trunk Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5
Menu: Viewing and Configuring a Static Trunk Group . . . . . . . . . . . 12-10
CLI: Viewing and Configuring a Static or Dynamic
Port Trunk Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-12
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 . . . . . . . . . . . . . . . . . . . . . . . . . 12-18
Default Port Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-21
LACP Notes and Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-23
Trunk Group Operation Using the “Trunk” Option . . . . . . . . . . . . . . 12-25
Trunk Operation Using the “FEC” Option . . . . . . . . . . . . . . . . . . . . . 12-25
How the Switch Lists Trunk Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-26
Outbound Traffic Distribution Across Trunked Links . . . . . . . . . . . 12-26
12-1