An Open Letter Regarding AS-Path Access-Lists

Dear Cisco,

Re: AS-Path Access-lists

May we please have named as-path access lists in IOS? I’m really bored of my self-documenting configurations being effectively obfuscated by these ugly numbers I have to use in match statements.

I know you saw the light and allowed this in NX-OS, but don’t forget us poor old retro IOS users please. You might also consider adding some consistency between the configuration of these lists:

ip as-path access-list 1 permit ^$

… and the monitoring:

show ip as-path-access-list

I can never recall whether to use the extra hyphens (dashes) or not. Of course, on this particular matter, NX-OS users have their own hell to contend with:

show ip as-path list <name>

Do we have a deal? Great!

Cheers then,


P.S. If you added them and I just missed that somehow, just let me know and I’ll send flowers or ritually sacrifice an SRX or something.

1 Comment on An Open Letter Regarding AS-Path Access-Lists

  1. Here here! I’ve got a really consistent naming scheme down for everything in IOS (studying for CCIE R&S), which really helps me create a readable config. However, the closes I can get with as-path access-lists is to give it the same number as one of the ASes I’m matching? Hardly useful in many cases!

Leave a Reply

Your email address will not be published.



This site uses Akismet to reduce spam. Learn how your comment data is processed.