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Int description statement - how many characters allowed?

I work on a large enterprise network, and due to the poor updating habits of our engineers, we will be re-addressing all the description statement in all our cisco router and switche interfaces, system wide, based on the hostnames we cull from a "show cdp neighbor". We are wondering what the max # of characters that will be allowed in a description statement for routers & switches of various IOS level?

The univers cd does not specifiy a limit for "description (int)", whereas many other uses of the description command do list a max. I tested this question today by copying around 200 words into a 1700 int with no issues. The question is - is there an IOS, platform or device based (switch or rtr) difference in this limitation as far as number of characters allowed? My 12.2 based 1700 did not appear to have any limitation and none was given in the Universcd.

The reason this is important is that we are attemting to anticipate issues with our script. Thanks in advance for the answers!

1 ACCEPTED SOLUTION

Accepted Solutions

Re: Int description statement - how many characters allowed?

Hi,

It appears 240 characters is the limit as per the documentation below. I checked a couple of routers, running different images, and a switch in my lab and they seem to support the same. Actually, when you do the 'description ?' on the int it tells you what the character limit is.

http://www.cisco.rw/univercd/cc/td/doc/product/lan/cat3560/12119ea1/3560scg/swint.htm#1249199

HTH

Sundar

2 REPLIES

Re: Int description statement - how many characters allowed?

Hi,

It appears 240 characters is the limit as per the documentation below. I checked a couple of routers, running different images, and a switch in my lab and they seem to support the same. Actually, when you do the 'description ?' on the int it tells you what the character limit is.

http://www.cisco.rw/univercd/cc/td/doc/product/lan/cat3560/12119ea1/3560scg/swint.htm#1249199

HTH

Sundar

New Member

Re: Int description statement - how many characters allowed?

Ok great. Thanks a million for the assistance here!

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