nanog mailing list archives

Re: Managing IOS Configuration Snippets


From: Erik Muller <erikm () buh org>
Date: Fri, 28 Feb 2014 11:10:32 -0500

On 2/28/14, 10:24 , Leo Bicknell wrote:
What I have always wanted is a way to group configuration, in particular by customer.  Ideally with the ability to see 
it both as a unified view, and also as a per-customer view.

For instance:

customer AAAAA
   interface GigabitEthernet1/2/3.10
     description AAAAA
     ip address 10.0.1.1 255.255.255.0
   router bgp 1
     neighbor 10.0.1.2 prefix-list AAAAA-in in
   ip prefix-list AAAAA-in 10.1.0.0/24
end
...

Basically this follows the two modes in which engineers look at a device.  Most of the time is configuring a specific customer, and wanting to 
be sure they are configured right; including the hard case of "no customer AAAAA", that is making sure all configuration for a 
specific customer is removed.  The rest of the time is typically troubleshooting a network level problem where you want the device view we have 
today, I see interface Gig1/2/3 is dropping packets, "show run" to see who's configure on it sort of operations.

I don't know of any platform that has implemented this sort of config framework though.

It's not the cleanest, but in junos you can pretty much get this by defining a configuration group per customer and applying them all. Your RE may hate you at commit time, but I've seen this approach work quite well.

-e


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