Checklist for Reinstalling JUNOS Software

1. Log the Software Version Information

show version | save filename

2. Log the Hardware Version Information

show chassis hardware | save filename

3. Log the Chassis Environment Information

show chassis environment | save filename

4. Log the System Boot-Message Information

show system boot-messages | save filename

5. Log the Active Configuration

show configuration | save filename

6. Log the Interfaces on the Router

show interface terse | save filename

7. Log the BGP, IS-IS, and OSPF Adjacency Information

show bgp summary | save filename
show isis adjacency brief | save filename
show ospf neighbor brief | save filename

8. Log the System Storage Information

show system storage | save filename

9. Back Up the Currently Running and Active File System

request system snapshot

https://www.juniper.net/support

Insert the floppy and reboot the system.

1. Configure Names and Addresses

Log in as root.
Start the CLI.
Enter configuration mode: configure
set system host-name host-name
set system domain-name domain-name
set interfaces fxp0 unit 0 family inet address address/prefix-length
set system backup-router address
set system name-server address

2. Set the Root Password

set system root-authentication plain-text-password
set system root-authentication encrypted-password password
set system root-authentication ssh-rsa key
commit
exit

3. Check Network Connectivity

ping address

4. Copy Backup Configurations to the Router

file copy var/tmp
configure

[edit]
load merge /config/filename or load replace /config/filename

[edit]
commit

1. Compare Information Logged Before and After the Reinstall

show version | save filename
show chassis hardware | save filename
show chassis environment | save filename
show system boot-messages | save filename
show configuration | save filename
show interfaces terse | save filename
show bgp summary
show isis adjacency brief
show ospf neighbor brief | save filename
show system storage | save filename

2. Back Up the New Software

request system snapshot