Upgrading the scb in the backup routing engine – Juniper Networks MX480 User Manual
Page 202
example, if the router name is juniper, you can connect to RE0 and RE1 consoles by
issuing the
telnet juniper-con
and
telnet juniper1-con
commands.
4.
Ensure that graceful switchover (GRES), commit synchronize (required for nonstop
routing), and nonstop routing (NSR) are enabled or configured by running the set
chassis redundancy graceful-switchover, set system commit synchronize, set
routing-options nonstop-routing commands.
NOTE:
These commands are mandatory for this upgrade and may be
removed, if desired, after the upgrade.
5.
Set the upgrade flag on, and start the SCB upgrade by issuing the
set chassis state
cb-upgrade on
command.
user@host#
configure
user@host#
set chassis state cb-upgrade on
user@host#
commit
6.
Determine the order to replace the existing SCBs with upgraded ones. SCB0 is
associated with RE0 and SCB1 is associated with RE1.
NOTE:
Do not add or remove any router hardware during the upgrade
procedure.
Upgrading the SCB in the Backup Routing Engine
TIP:
MX480 has two slots for SCB—that is, SCB0 and SCB1—and these
correspond to RE0 and RE1 respectively, where SCB1 is the first SCB.
To upgrade the SCB in the backup Routing Engine:
1.
Power down the backup Routing Engine from the master Routing Engine by issuing
the
request system power-off other-routing-engine
command.
2.
Verify that the Routing Engine is powered down by issuing the
show chassis
routing-engine 1
command. The slot of the Routing Engine may be 0 or 1, and is shown
as 1 in this example:
user@host>
show chassis routing-engine 1
Routing Engine Status:
Slot 1:
Current State Present
Ensure that the Current State is Present, which indicates that the Routing Engine is
offline.
3.
Take the fabric plane offline by issuing the
request chassis fabric plane 4 offline
command. SCB1 has four fabric planes numbered, 4, 5, 6, and 7.
4.
Verify that the fabric plane is offline by issuing the
show chassis fabric summary
command.
Copyright © 2013, Juniper Networks, Inc.
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MX480 3D Universal Edge Router Hardware Guide