Thought you guys would like the title. :D Sorry for the lack of content lately, I’ve been very busy.

Today we’re going to explore the “archive” feature in IOS with a small “archive tutorial”. This was sparked by a recent comment on one of my JUNOS posts. The commenter said that the “archive” command in IOS is the same as “rollback” in JUNOS. They are similar, but “rollback” is there by default where you need to do some tinkering with “archive”. I’ve used it in the past, but never with the intention of mimicking JUNOS’s “rollback”.

Here’s the config:

EDGE(config)#archive
EDGE(config-archive)#?
Archive configuration commands:
  default       Set a command to its defaults
  exit          Exit from archive configuration mode
  log           Logging commands
  maximum       maximum number of backup copies
  no            Negate a command or set its defaults
  path          path for backups
  rollback      Rollback parameters
  time-period   Period of time in minutes to automatically archive the running-config
  write-memory  Enable automatic backup generation during write memory
EDGE(config-archive)#path disk0:config-backup
EDGE(config-archive)#max 14
EDGE(config-archive)#write-memory

To enter the config, we simply type “archive” in global config. There are quite a few options, as we can see. First we’ll need to set our path to store the archived configs, this is a 7200, so I’m using disk0 and a simple naming convention. Next we specify how many configs we want to backup, I’m using the maximum on my device, which is 14. Finally we set the “write-memory” command, which tells the router to archive the config anytime we save.

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