Installing An Mpc And Mics In An Operating Srx5400 Services Gateway Chassis Cluster - Juniper SRX5400 Hardware Manual

Installing an MPC and MICs in an Operating SRX5400 Services Gateway
Chassis Cluster
If your services gateway is part of a chassis cluster, you can install an additional MPC in the services
gateways in the cluster without incurring downtime on your network.
Such an installation meet the following conditions:
Each of the services gateways in the cluster has an unoccupied slot for the MPC.
If the chassis cluster is operating in active-active mode, you must transition it to active-passive mode
before using this procedure. You transition the cluster to active-passive mode by making one node
primary for all redundancy groups.
Both of the services gateways in the cluster must be running Junos OS Release 12.1X45-D10 or later.
If your installation does not meet these criteria, use the procedure in
Gateway MPC" on page 283
NOTE: During this installation procedure, you must shut down both devices, one at a time.
During the period when one device is shut down, the remaining device operates without a backup.
If that remaining device fails for any reason, you incur network downtime until you restart at
least one of the devices.
To install MPCs in an operating SRX5400 Services Gateway cluster without incurring downtime:
1. Use the console port on the Routing Engine to establish a CLI session with one of the devices in the
cluster.
2. Issue the show chassis cluster status command to determine which services gateway is currently
primary, and which services gateway is secondary, within the cluster.
In the example below, all redundancy groups are primary on node 0, and secondary on node 1:
admin@cluster> show chassis cluster status
Cluster ID: 1
Node
Redundancy group: 0 , Failover count: 5
node0
node1
to install MPCs in your services gateway.
Priority
1
100
"Installing an SRX5400 Services
Status Preempt Manual failover
primary no
secondary no
no
no
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