sorry sent before complete, this is input queueing so not sure for output as don't have access to verify
On Tue, Sep 4, 2012 at 10:50 AM, Bill Lake <whl...@gmail.com> wrote: > I think you can manipulate the queue size by issuing the command > > mls qos input priority 1 bandwidth 15 > > show mls qos input > > should have something like 3 columns with queue, 1 and 2 then underneath > queue will be priority, and under 1 would be 15 > > > > On Mon, Sep 3, 2012 at 9:14 PM, Dan Quinlan (daquinla) <daqui...@cisco.com > > wrote: > >> Threshold values are not referring to bandwidth - the refer to queue >> depth (or buffers). The 3750 has buffers reserved per port and a pool of >> shared buffers, hence why the value can be greater than 100%. If the >> question asks to address output traffic based on bandwidth, you need to >> focus on shape and share commands. If it wants you to address traffic based >> on queue depth, you need to focus on thresholds. >> >> DQ >> d...@cisco.com >> >> On Sep 3, 2012, at 11:36 AM, "Jason Murray" <murr...@usa.com> wrote: >> >> Ok so threshold is used a little differently. So yes default auto qos >> config queue 1 the priority queue has a threshold of 100 percent or more. >> I myself do really get the whole more than 100% but don't know if it >> matters so let me give an example of how to use threshold. >> >> So lets say for example you are to assign COS 2, 6 and 7 to que 4. And >> it also states if the link becomes 45 percent saturated then start dropping >> cos 6. You need to use thresholds to accomplish this >> >> So first you need to assign those cos values to queue four also keeping >> in mind that second requirement of dropping cos 6 once the link is 45 >> percent saturated. >> >> mls qos srr-queue output dscp-map queue 4 threshold 3 2 7 >> mls qos srr-queue output dscp-map queue 4 threshold 2 6 >> >> Now you notice how I split the COS values out between thresholds but they >> are still assigned to queue 4. The next command will address that >> >> mls qos queue-set output 2 threshold 2 100 100 100 45 >> >> Ok lets explain this last one so "output 2" corresponds to the queue set >> that is assigned to that particular port so in this case "queue set 2" >> Threshold 2 matches up with the the second command so that only affects COS >> 6 in queue 4 and not anything cos values assigned to queue 4. >> >> Now we assign those configurations to the interface by using the >> queue-set command >> >> >> int f1/0/1 >> queue-set 2 >> >> So that's what thresholds have to do with it. >> >> Jason >> >> >> >> >> >> ----- Original Message ----- >> >> From: Krishna >> >> Sent: 09/02/12 12:00 AM >> >> To: murr...@usa.com, Randall Crumm, Dan Quinlan \(daquinla\) >> >> Subject: Re: [OSL | CCIE_Voice] LAN Qos Question >> >> jason, >> >> reg: If you leave priority que out configured along with shape of 25 >> percent then essentially que 1 can have 100 percent of the bandwidth if >> needs it. >> >> Isn't it queue 1 takes whatever the value defined in the threshold i.e. >> for example mls qos queue-set output 1 threshold 1 138 138 92 138, this >> takes queue 1 to 138%, and once it is over it comes back to share mode, >> since the priority queue overwritten the shape, and left over is share >> value whatever defined at the interface level... please correct me if i m >> wrong.. >> >> thank you >> krishna. >> >> ------------------------------ >> *From:* "murr...@usa.com" <murr...@usa.com> >> *To:* murr...@usa.com; Randall Crumm <rrcr...@yahoo.com>; Dan Quinlan >> (daquinla) <daqui...@cisco.com> >> *Cc:* ccie_voice@onlinestudylist.com >> *Sent:* Saturday, September 1, 2012 8:20 PM >> *Subject:* Re: [OSL | CCIE_Voice] LAN Qos Question >> >> >> >> >> > Priority goes in this order >> > >> > Priority queue out >> > Shape >> > Share >> > >> > If lets say for example you want cos 5 to be in the priority queue but >> it also states that cos 5 should have no more than 25 percent of the >> bandwidth. Of course in the mappings you need to put cos 5 in que 1. Then >> you need to disable priority que out and use shape to give cos 5 only 25 >> percent (shape 4 0 0 0). If you leave priority que out configured along >> with shape of 25 percent then essentially que 1 can have 100 percent of the >> bandwidth if needs it. Make sure you read the question carefully to see >> what it is wanting. >> > >> > Jason >> > >> > >> > >> > >> > >> > On 9/1/12 at 10:56 AM, Randall Crumm wrote: >> > >> > > Hi, >> > > I have a question about LAN QoS. >> > > >> > > If I do shape and share on an interface do I have to disable priority >> queue out on the interface? >> > > >> > > >> > > >> > > Cheers, >> > > Randall >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com <http://www.platinumplacement.com/> >> >> >> >> >> >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
