Juniper MX480 Hardware Manual page 409

user@host> show chassis hardware
Item Version
CB0 REV 07 710-021523
CB1 REV 07 710-021523
SCB-MX details are displayed as above, along with other hardware components. The MX480 router
has only two SCB-MXs and each SCB-MX has four fabric planes.
3. Establish console connections to both Routing Engines. You can use a telnet session to connect to the
router console by issuing the <router name>-con command. For 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-MX 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 SCB-MXs with upgraded ones. SCB 0 is associated with
RE0, and SCB 1 is associated with RE1.
NOTE: Do not add or remove any router hardware during the upgrade procedure.
Part Number Serial Number
ABBC8281
ABBC8323
Description
MX SCB
MX SCB
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