Cisco 6500 - Manual (Page 21)

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Cisco IOS Software Configuration Guide, Release 12.2SX
OL-13013-06
Chapter 4 Configuring Virtual Switching Systems
Understanding Virtual Switching Systems
File System Access
You can access file systems of both chassis from the VSS active chassis. Prefix the device name with
the switch number and slot number to access directories on the VSS standby chassis. For example, the
command dir sw2-slot6-disk0: lists the contents of disk0 on the VSS standby chassis (assuming switch
2 is the VSS standby chassis). You can access the VSS standby chassis file system only when VSL is
operational.
VSL Diagnostics
You can use the diagnostic schedule and diagnostic start commands on a VSS. In virtual switch mode,
these commands require an additional parameter, which specifies the chassis to apply the command.
When you configure a VSL port on a switching module or a supervisor engine module, the diagnostics
suite incorporates additional tests for the VSL ports.
Use the show diagnostic content command to display the diagnostics test suite for a module.
The following VSL-specific diagnostics tests are available on WS-X6708-10G switching modules with
VSL ports. These tests are disruptive:
• TestVslBridgeLink
• TestVslLocalLoopback
The following VSL-specific diagnostics tests are available on a Supervisor Engine 720-10GE with VSL
ports. These tests are disruptive:
• TestVSActiveToStandbyLoopback
• TestVslBridgeLink
• TestVslLocalLoopback
The following VSL-specific diagnostics test is available for VSL ports on the switching module or the
supervisor engine. This test is not disruptive:
• TestVslStatus
See the “ViSN Tests” section on page B-47 .
Service Modules
The following system monitoring and system management guidelines apply to service modules
supported by the VSS:
• The supervisor engine in the same chassis as the service module controls the powering up of the
service module. After the service module is online, you initiate a session from the VSS active
supervisor engine to configure and maintain the service module.
• Use the session command to connect to the service module. If the service module is in the VSS
standby chassis, the session runs over the VSL.
• The VSS active chassis performs the graceful shutdown of the service module, even if the service
module is in the VSS standby chassis.