Max DLCI on a 1721

Mar 10, 2005 2 Replies
Max DLCI on a 1721 open original image

Hello,



What the approximate maximum number of DLCIs that can be handled by a 1721? Ignore bandwid



th issue, I'm concerned by the limit that may be a result of IOS, or if the memory is maximized.



All of the connnections are 56K dds Frame relay, and none move more than 1kbps. The question is how many DLCI can I map into a single (T1) port or if I use both (T1) ports....


I remember some years ago on a 7500, running IOS 11, that the max number was 1024 with a practical number of DLCI for aDSL circuits maxing out bandwidth at about 800....



Guesstimates are ok too!


James


[snip]

No need to guess. FR frame only has 10 bits for DLCIs.

Additionally there are also LMI limitations - check

formatting link
regards

Piotr Marecki

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required