Configuring Vsan Trunking; Guidelines And Restrictions; Enabling Or Disabling The Vsan Trunking Protocol; About Trunk Mode - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual
Cisco nexus 5000 series switch cli software configuration guide, nx-os 4.0(1a)n1 (ol-16597-01, january 2009)
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Chapter 35
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)# trunk protocol enable
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 35-1
Your Trunk Mode Configuration
Switch 1
On
Off
Auto
OL-16597-01
Guidelines and Restrictions, page 35-3
Enabling or Disabling the VSAN Trunking Protocol, page 35-3
About Trunk Mode, page 35-3
Configuring Trunk Mode, page 35-4
About Trunk-Allowed VSAN Lists, page 35-4
Configuring an Allowed-Active List of VSANs, page 35-6
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
Auto, on, or off
Auto
Purpose
Enters configuration mode.
Disables the trunking protocol.
Enables trunking protocol (default).
Resulting State and Port Mode
Trunking State
Trunking (EISL)
No trunking (ISL)
No trunking (ISL)
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Configuring VSAN Trunking
Table
35-1).
Port Mode
TE port
E port
E port
35-3
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