Protocol rate limiting

[belliott12]

How can I limit the bandwidth usage of a IP protocol

Example : I want to only allow 25% bandwidth of an ATM

PVC T1 ( Email or SMPT )

Thanks

Bill Elliott

[amritpatek]

Yes. It can be done with help of Commited Access Rate feature of ATM Switches.

http://www.cisco.com/en/US/products/hw/switches/ps718/products_configuration_guide_chapter09186a008007cf09.html

[tabbott]

You may want to look to establish a QoS congestion policy to the outbound interface such that SMTP is in a class that can only get 25% of the bandwidth under congestion. Another way would be to use the police command on the interface. It may be available on ATM but it definetly is on the ethernet which may be the connection to your LAN.

[paupot]

Create an acl permitting the SMTP traffic

then, on interface level

traffic-shape group

It will shape all traffic exceeding the max-size.

hth

paul