Upgrading A Router With Redundant Routing Engines; Upgrading Juniper Network Routers Running Draft-Rosen Multicast Vpn To Junos Os Release 10.1 - Juniper JUNOS OS 10.4 - RELEASE NOTES Release Note

Upgrade and Downgrade Instructions for Junos OS Release 10.4 for M Series, MX Series, and T Series Routers
Copyright © 2010, Juniper Networks, Inc.
Adding the command reboots the router after the upgrade is validated and
reboot
installed. When the reboot is complete, the router displays the login prompt. The
loading process can take 5 to 10 minutes.
Rebooting occurs only if the upgrade is successful.
NOTE: After you install a Junos OS Release 10.4
issue the
request system software rollback
installed software. Instead you must issue the
command and specify the
validate
previously installed software.
NOTE: Before you upgrade a router that you are using for voice traffic, you
should monitor call traffic on each virtual BGF. Confirm that no emergency
calls are active. When you have determined that no emergency calls are
active, you can wait for nonemergency call traffic to drain as a result of
graceful shutdown, or you can force a shutdown. For detailed information
on how to monitor call traffic before upgrading, see the Junos OS Multiplay
Solutions Guide.

Upgrading a Router with Redundant Routing Engines

If the router has two Routing Engines, perform a Junos OS installation on each Routing
Engine separately to avoid disrupting network operation as follows:
Disable graceful Routing Engine switchover (GRES) on the master Routing Engine
1.
and save the configuration change to both Routing Engines.
Install the new Junos OS release on the backup Routing Engine while keeping the
2.
currently running software version on the master Routing Engine.
After making sure that the new software version is running correctly on the backup
3.
Routing Engine, switch over to the backup Routing Engine to activate the new software.
Install the new software on the original master Routing Engine that is now active as
4.
the backup Routing Engine.
For the detailed procedure, see the Junos OS Installation and Upgrade Guide.
Upgrading Juniper Network Routers Running Draft-Rosen Multicast VPN to Junos
OS Release 10.1
In releases prior to Junos OS Release 10.1, the draft-rosen multicast VPN feature
implements the unicast
lo0.x
address used to establish PIM neighbors and create the multicast tunnel. In this mode,
the multicast VPN loopback address is used for reverse path forwarding (RPF) route
resolution to create the reverse path tree (RPT), or multicast tunnel. The multicast VPN
loopback address is also used as the source address in outgoing PIM control messages.
command to return to the previously
package that corresponds to the
jinstall
address configured within that instance as the source
package, you cannot
jinstall
request system software add
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