Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1031

Problem
Solution
Problem
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Documentation
Example: Setting Up a Multimember EX4200 Virtual Chassis Access Switch with a
Default Configuration
Copyright © 2010, Juniper Networks, Inc.
Troubleshooting Mastership Priority
You want to designate a different member as the master.
Change the mastership priority value or values of the switches, designating the highest
mastership priority value for the switch that you want to be master.
Lower the mastership priority of the existing master (member 0).
1.
[edit virtual-chassis]
user@SWA-0# set member 0 mastership-priority 1
Set the mastership priority of the member that you want to be the master to the
2.
highest possible value (255):
[edit virtual-chassis]
user@SWA-2# set member 2 mastership-priority 255
Troubleshooting Nonoperational VCPs
The VCP interface shows a status of
Check the cable to make sure that it is properly and securely connected to the VCPs.
Example: Setting Up a Multimember EX4200 Virtual Chassis Access Switch with a
Default Configuration on page 927
Configuring an EX4200 Virtual Chassis (CLI Procedure) on page 981
Configuring an EX4200 Virtual Chassis (J-Web Procedure) on page 985
You can configure a multimember EX4200 Virtual Chassis access switch in a single wiring
closet without setting any parameters—by simply cabling the EX4200 switches together,
using the dedicated Virtual Chassis ports (VCPs). You do not need to modify the default
configuration to enable these ports. They are operational by default. The Virtual Chassis
configuration automatically assigns the master, backup, and linecard roles, based on the
sequence in which the switches are powered on and other factors in the master election
algorithm. See "Understanding How the Master in an EX4200 Virtual Chassis Is Elected"
on page 898.
TIP: We recommend that you explicitly configure the mastership priority of
the switches to ensure that the switches continue to perform the desired
roles when additional switches are added or other changes occur. However,
it is possible to use the default configuration described in this example.
Chapter 38: EX4200 Virtual Chassis—Configuration Examples
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