Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1098

Complete Software Guide for Junos
Configuring Mastership Using a Configuration File That Is Not Preprovisioned
Related
Documentation
Setting an EX4200 Switch Uplink Module Port as a Virtual Chassis Port (CLI Procedure)
994
®
OS for EX Series Ethernet Switches, Release 10.4
To configure mastership of the Virtual Chassis through a configuration that is not
preprovisioned for an EX4200 Virtual Chassis:
Power on only the switch that you want to function in the master role (SWA-0).
1.
Configure the highest possible mastership priority value (
2.
you want to function in the master role:
[edit virtual-chassis]
user@SWA-0# set member 0 mastership-priority 255
Configure the same mastership priority value (continue to edit the Virtual Chassis
3.
configuration on the master) for the member that you want to be the backup (SWA-1):
[edit virtual-chassis]
user@SWA-0# set member 1 mastership-priority 255
NOTE: We recommend that the master and backup have the same
mastership priority value to prevent the master and backup status from
switching back and forth between master and backup members in failover
conditions.
Use the default mastership priority value (
4.
or configure the mastership priority to a value that is lower than the value specified
for members functioning in the master and backup roles.
Example: Configuring an EX4200 Virtual Chassis Using a Preprovisioned Configuration
File on page 952
Example: Expanding an EX4200 Virtual Chassis in a Single Wiring Closet on page 922
Verifying the Member ID, Role, and Neighbor Member Connections of an EX4200 Virtual
Chassis Member on page 1010
Monitoring EX4200 Virtual Chassis Status and Statistics on page 1013
Configuring an EX4200 Virtual Chassis (CLI Procedure) on page 981
Configuring an EX4200 Virtual Chassis (J-Web Procedure) on page 985
Understanding EX4200 Virtual Chassis Configuration on page 904
You can interconnect EX4200 switches that are beyond the reach of the Virtual Chassis
cables as members of an EX4200 Virtual Chassis configuration by installing the optional
SFP uplink module, SFP+ uplink module, or XFP uplink module and connecting the uplink
ports. You can also use the SFP network ports on an EX4200-24F for this purpose. To
use the uplink ports or SFP network ports for interconnecting member switches, you
must explicitly set the uplink ports as VCPs.
255 ) for the member that
) for the remaining member switches
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