Juniper JUNOS OS 10.3 - SOFTWARE, Manual

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Interface Type Status
or
PIC / Port
vcp-0 Dedicated Up
vcp-1 Dedicated Up
Meaning The
show virtual-chassis vc-port all-members
command lists the Virtual Chassis
interfaces that are enabled for the member switches of the Virtual Chassis configuration
and shows the status of the interfaces. In this case, no VCP uplinks have been configured.
However, the VCP interfaces are automatically configured and enabled when you
interconnect member switches using the dedicated VCPs. There are two dedicated VCPs
on the rear panel of each EX4200 switch. The dedicated VCP interfaces are identified
simply as vcp-0 and vcp-1. They do not use the standard interface address (in which the
member ID is represented by the first digit). The output in this example shows that all
interfaces are operational. The
fpc
number is the same as the member ID.
Troubleshooting
To troubleshoot the configuration of a multimember Virtual Chassis in a single wiring
closet, perform these tasks:
Troubleshooting Mastership Priority
Problem You want to explicitly designate one member as the master and another as backup.
Solution Change the mastership priority value of the member that you want to function as master,
designating the highest mastership priority value that member.
NOTE: These configuration changes are made through the current master,
SWA-0.
1.
Configure mastership priority of member 0 to be the highest possible value.
[edit virtual-chassis]
user@SWA-0#
set member 0 mastership-priority 255
2.
Set the mastership priority of another member that you want to function as the backup
member as the same value:
[edit virtual-chassis]
user@SWA-0#
set member 2 mastership-priority 255
Troubleshooting Nonoperational VCPs
Problem The VCP interface shows a status of
down
.
Solution Check the cable to make sure that it is properly and securely connected to the VCPs.
Copyright © 2010, Juniper Networks, Inc. 962
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3