Re: Queuing Question [7:56139]
Just a related note. You can convert any number of the top queues in Custom queueing over to Priority queues. (i.e. you could configure queues 1 - 8 as priority queues, with the remainder being treated as custom queues only after queues 1-8 have been serviced). So it's not surprising that there would be a Q0 for system traffic that's given strict priority. Mike W. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56209&t=56139 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Queuing Question [7:56139]
I found this on Cisco's website: Q: If custom queuing has been configured, do routing protocol updates such as LSAs for OSPF and broadcasts for RIP and IGRP get queued in the special system queue 0, or do they get queued in the IP queue? A: In addition to low level keepalives, some protocols whose traffic is originated by the router use queue 0 for their time critical packets. Specifically: ISO IGRP hellos ESIS hellos ISIS hellos DECnet hellos SLARP address resolution EIGRP hellos OSPF hellos Router syslog messages Spanning tree keepalives Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56159&t=56139 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Queuing Question [7:56139]
>From what I've read, your assumptions are right in that queue gets EMPTIED before the round robin starts. As for what goes into queue 0, all I can find is "router system traffic like keepalives." Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56148&t=56139 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Queuing Question [7:56139]
> My question is this ... > (1) Since there are no configuration parameters > for queue list 0, does > custom queuing sort of have a 'priority' queing > mechanism for Queue 0, in > that Queue 0 will be completed 'drained' before > the normal round-robin > procedures occur for Queues 1 - 16, or Yes, I believe this is what occurs. The catch is that you (the engineer) can't configure what goes into Queue 0, which leads to *my* question about CQ - what goes into Q0? I mean, if I leave CDP running, do all my CDP packets go into Q0? Do SNMP traps go into Q0? I'm basically looking for a *list* of protocols that automatically get assigned to Q0. Can anyone offer any insight? Thanks, BJ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56140&t=56139 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Queuing Question [7:56139]
Hi, In custom queuing, there are 16 user customisable queues plus 1 system queue (0). All the documentation I have read states a variation of the following sentence:- "The system queue is served before all other queues". I am sorta confused by this. My question is this ... (1) Since there are no configuration parameters for queue list 0, does custom queuing sort of have a 'priority' queing mechanism for Queue 0, in that Queue 0 will be completed 'drained' before the normal round-robin procedures occur for Queues 1 - 16, or (2) Does Queue 0 also take part in this round-robin mechanism in that since Queue 0 is first, it gets served first, but is not allowed to hog the bandwidth and only a certain amount of packets are sent before the next queue is served. My guess is that that Queue 0 will have to be completely empty before the other queues are serviced by custom queuing Thanks for your insight ___ Manish Hira Time may be a greater healer but it's also a lousy beautician Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56139&t=56139 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
