Step 1: Compare Information Logged Before and After the Upgrade

Purpose

Compare the operation of the system before and after the upgrade to ensure that everything is working as expected.

Action

To obtain system information, use the following JUNOS CLI operational mode commands:

user@host> show version

user@host> show chassis hardware

user@host> show configuration

user@host> show interface terse

user@host> show bgp summary

user@host> show isis adjacency brief

user@host> show ospf neighbor brief 

user@host> show system storage

Compare the information from these commands with the information you logged before the upgrade.