Restricting bandwidth usage

[tcavdar]

We have remote sides connected to central with 128K leased line on cisco router 2600. How can i restrict the bandwidth usage of all protocols except smtp?For example users can use 20K of bandwidth for applications other than smtp.

Thanks

[rsissons]

You can configure custom queuing to reserve the bandwidth you want for SMPT and let all other traffic fall into the default queue.

For example the following configuration will allocate 20% of the available bandwith to all other traffic however, that traffic will be able to use more bandwidth if SMPT does not require it.

interface Serial0

custom-queue-list 1

!

queue-list 1 default 2

queue-list 1 protocol ip 1 tcp smpt

queue-list 1 queue 1 byte-count 4096

queue-list 1 queue 2 byte-count 1024