thanks for the update john ..... as always ...most appreciated steve >From: "John Neiberger" >Reply-To: "John Neiberger" >To: [EMAIL PROTECTED] >Subject: Dual FIFO: An Answer [7:20308] >Date: Tue, 18 Sep 2001 14:45:46 -0400 > >No, Dual FIFO does not mean "a pair of poodles." That would be Dual >FOOFOO. Then again, it may be Dual FIDO. Anyway.... > >While browsing on CCO I found a better explanation of the Dual FIFO >queue. This excerpt is taken from: > >http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/qossol/qosvoip.htm#xtocid635517 > > >At the interface level, a FIFO queue is set up unless you have enabled >FRF.12 fragmentation. In that case, a dual FIFO system is set up with a >high priority queue and a low priority queue. The high priority queue >receives the PQ traffic from all PVCs plus Layer 2 control traffic. The >low priority queue receives all other traffic from all PVCs. Remember >that Frame Relay traffic shaping (FRTS) is required for Frame Relay >circuits whether FRF.12 fragmentation is enabled or not. FRTS provides >the back-pressure mechanism to detect congestion per PVC. Support for >ATM PVCs is available in Cisco IOS Release 12.2(1)T. > >HTH, >John _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20395&t=20308 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
