Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

TechLibrary
Navigation

Best Practices

When you are planning to perform a unified in-service software upgrade (unified ISSU), choose a time when your network is as stable as possible. As with a normal upgrade, Telnet sessions, SNMP, and CLI access are briefly interrupted. In addition, the following restrictions apply:

  • The master Routing Engine and backup Routing Engine must be running the same software version before you can perform a unified ISSU.
  • During a unified ISSU, you cannot bring any PICs online or offline.
  • Unicast RPF-related statistics are not saved across a unified ISSU, and the unicast RPF counters are reset to zero during a unified ISSU.
 

Related Documentation

 

Published: 2013-03-18

Previous Page Next Page