Guidelines And Restrictions; Enabling Or Disabling The Vsan Trunking Protocol; About Trunk Mode - Cisco nexus 5000 series Cli Configuration Manual

Chapter 1 Configuring VSAN Trunking
S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m
Configuring VSAN Trunking
This section explains how to configure VSAN trunking and includes the following topics:
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Guidelines and Restrictions

When configuring VSAN trunking, note the following guidelines:
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Enabling or Disabling the VSAN Trunking Protocol

To enable or disable the VSAN trunking protocol, perform this task:
Command
Step 1
switch# configuration terminal
Step 2
switch(config)# no trunk protocol enable
switch(config)#
switch(config)# trunk protocol enable
switch(config)#

About Trunk Mode

By default, trunk mode is enabled in all Fibre Channel interfaces. However, trunk mode configuration
takes effect only in E-port mode. You can configure trunk mode as on (enabled), off (disabled), or auto
(automatic). The default trunk mode is on. The trunk mode configurations at the two ends of the link
determine the trunking state of the link and the port modes at both ends (see
Table 1-1
Your Trunk Mode Configuration
Switch 1
On
OL-16597-01
Guidelines and Restrictions, page 1-3
Enabling or Disabling the VSAN Trunking Protocol, page 1-3
About Trunk Mode, page 1-3
Configuring Trunk Mode, page 1-4
About Trunk-Allowed VSAN Lists, page 1-4
Configuring an Allowed-Active List of VSANs, page 1-6
We recommend that both ends of a VSAN trunking ISL belong to the same port VSAN. On platforms
or fabric switches where the port VSANs are different, one end returns an error, and the other is not
connected.
To avoid inconsistent configurations, disable all E ports with a shutdown command before enabling
or disabling the VSAN trunking protocol.
Trunk Mode Status Between Switches
Switch 2
Auto or on
Purpose
Enters configuration mode.
Disables the trunking protocol.
Enables trunking protocol (default).
Resulting State and Port Mode
Trunking State
Trunking (EISL)
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Configuring VSAN Trunking
Table 1-1).
Port Mode
TE port
1-3