HI All, I know that you can specify the committed information rate (CIR) on a frame relay link, as well as BE and BC. I have look on the Cisco web site and can't find a sample configuration used in a live network scenario. Maybe I don't understand the concept correctly: CIR = Committed Information Rate: Guaranteed bandwidth over serial frame relay link BC = Burst Capacity: Committed burst size...means? BE = Burst Excess: Excess burst size...means? My question: If you have a 512K serial line connected to a frame-relay switch, what will be the best confogurations for the CIR, BC, and BE? If I configure the "bandwidth 64K" on the sub-interface of the serial link, how would this effect the CIR settings? Hope someone can help me with this one. Thanks a lot. Jacques Allison [EMAIL PROTECTED] ASE, MCSE, CCNP ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]