Re: [OSL | CCIE_Voice] Layer 2 QOS
What about if we just set the egress limit to 10% of the total bandwidth of the port like this below. Limiting the Bandwidth on an Egress Interface Switch(config)# interface FastEthernet1/0/2 Switch(config-if)# srr-queue bandwidth limit 10 When you configure this command to 80 percent, the port is idle 90 percent of the time. The line rate drops to 10 percent of the connected speed, which is 10 Mb/s. These values are not exact because the hardware adjusts the line rate in increments of six. Does that work for the question? Regards, Ken Beck -Original Message- From: ccie_voice-boun...@onlinestudylist.com [mailto:ccie_voice-boun...@onlinestudylist.com] On Behalf Of ccie_voice-requ...@onlinestudylist.com Sent: Thursday, July 29, 2010 7:06 PM To: ccie_voice@onlinestudylist.com Subject: CCIE_Voice Digest, Vol 53, Issue 142 Send CCIE_Voice mailing list submissions to ccie_voice@onlinestudylist.com To subscribe or unsubscribe via the World Wide Web, visit http://onlinestudylist.com/mailman/listinfo/ccie_voice or, via email, send a message with subject or body 'help' to ccie_voice-requ...@onlinestudylist.com You can reach the person managing the list at ccie_voice-ow...@onlinestudylist.com When replying, please edit your Subject line so it is more specific than "Re: Contents of CCIE_Voice digest..." Today's Topics: 1. Layer 2 QOS (Jeff Cotter) 2. Re: Layer 2 QOS (Matthew Berry) 3. Re: Layer 2 QOS (Jeff Cotter) 4. Re: Layer 2 QOS (Daniel Berlinski) 5. Re: Layer 2 QOS (Matthew Berry) -- Message: 1 Date: Thu, 29 Jul 2010 18:19:19 -0700 From: Jeff Cotter To: "ccie_voice@onlinestudylist.com" Subject: [OSL | CCIE_Voice] Layer 2 QOS Message-ID: <54cc1bd3093b6e41b86926c1657432f1a6264...@ssfex1> Content-Type: text/plain; charset="us-ascii" How would you enable the priority queue AND make sure queue 1 has 10% of the bandwidth. The documentation states that if the priority queue in enabled, shape and share configuration for that queue is ignored. So how do you accomplish this without using Shape command. -- next part -- An HTML attachment was scrubbed... URL: -- Message: 2 Date: Thu, 29 Jul 2010 20:47:35 -0500 From: Matthew Berry To: Jeff Cotter Cc: "ccie_voice@onlinestudylist.com" Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS Message-ID: Content-Type: text/plain; charset="us-ascii" You could treat it as a priority queue by throwing CoS 5 or DSCP EF into Q1. You could then shape it to 10, which would result in 10%. You would also need to do a "no priority-queue out" under the interface. But I don't think you can have priority on the queue and still limit the queue to only part of the pipe. Matthew Berry **Sent from my iPhone** Skype/Twitter: ciscovoiceguru Google Voice: +1 612 424 5044 On Jul 29, 2010, at 20:19, Jeff Cotter wrote: > How would you enable the priority queue AND make sure queue 1 has 10% of the bandwidth. The documentation states that if the priority queue in enabled, shape and share configuration for that queue is ignored. So how do you accomplish this without using Shape command. > > ___ > For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com -- next part -- An HTML attachment was scrubbed... URL: -- Message: 3 Date: Thu, 29 Jul 2010 18:56:31 -0700 From: Jeff Cotter To: Matthew Berry Cc: "ccie_voice@onlinestudylist.com" Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS Message-ID: <54cc1bd3093b6e41b86926c1657432f1a6264...@ssfex1> Content-Type: text/plain; charset="utf-8" Hello Matthew and thanks for the reply. However my thought is??putting COS 5 and EF into Q1 does not make it a priority queue. Which by definition means the queue is serviced until it is empty BEFORE the other queues are serviced. This behavior is only in effect with the priority queue out command. The Ingress queues have the proper commands to control the size of the priority queue mls qos srr-queue input priority-queue queue-id bandwidth weight but not the egress queues. Of course I my logic could be flawed here. From: Matthew Berry [mailto:ciscovoiceg...@gmail.com] Sent: Thursday, July 29, 2010 6:48 PM To: Jeff Cotter Cc: ccie_voice@onlinestudylist.com Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS You could treat it as a priority queue by throwing CoS 5 or DSCP EF into Q1. You could then shape it to 10, which would result in 10%. You would also need to do a "no priority-queue out" under the interface. But I don't think you can have priority on the queue and still limit the queue to only part of the pipe. Matthew Berry **Sent from my iPhone*
Re: [OSL | CCIE_Voice] Layer 2 QOS
agree. change threshold in order to limit it. once pq is enabled its always serviced first. shape doesnt apply. thats what vik said on the bootcamp. regards -- Sent from my mobile device. On Jul 30, 2010 4:02 AM, "Daniel Berlinski" wrote: In my opinion this is done by adjusting the buffer size for queue 1 and applying it to a queue-set. srr shape statement in my opinion means nothing in relation to adjusting priority queue size. http://onlinestudylist.com/archives/ccie_voice/2010-July/069398.html On Fri, Jul 30, 2010 at 1:19 PM, Jeff Cotter wrote: > > > > How would you enable the priority queue AND make sure queue 1 has 10% of > the bandwidth. The doc... > > > ___ > > For more information regarding industry leading ... > ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
Re: [OSL | CCIE_Voice] Layer 2 QOS
So what's the answer? Vik/Amy - Opinions? Matthew Berry **Sent from my iPhone** Skype/Twitter: ciscovoiceguru Google Voice: +1 612 424 5044 On Jul 29, 2010, at 21:21, Jeff Cotter wrote: > Interesting……Thanks Daniel great thought! > > > > From: Daniel Berlinski [mailto:dberlin...@gmail.com] > Sent: Thursday, July 29, 2010 7:03 PM > To: Jeff Cotter > Cc: ccie_voice@onlinestudylist.com > Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS > > > > In my opinion this is done by adjusting the buffer size for queue 1 and > applying it to a queue-set. srr shape statement in my opinion means nothing > in relation to adjusting priority queue size. > > http://onlinestudylist.com/archives/ccie_voice/2010-July/069398.html > > > > On Fri, Jul 30, 2010 at 1:19 PM, Jeff Cotter wrote: > > How would you enable the priority queue AND make sure queue 1 has 10% of the > bandwidth. The documentation states that if the priority queue in enabled, > shape and share configuration for that queue is ignored. So how do you > accomplish this without using Shape command. > > > ___ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > > > ___ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
Re: [OSL | CCIE_Voice] Layer 2 QOS
Interesting..Thanks Daniel great thought! From: Daniel Berlinski [mailto:dberlin...@gmail.com] Sent: Thursday, July 29, 2010 7:03 PM To: Jeff Cotter Cc: ccie_voice@onlinestudylist.com Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS In my opinion this is done by adjusting the buffer size for queue 1 and applying it to a queue-set. srr shape statement in my opinion means nothing in relation to adjusting priority queue size. http://onlinestudylist.com/archives/ccie_voice/2010-July/069398.html On Fri, Jul 30, 2010 at 1:19 PM, Jeff Cotter mailto:jcot...@voxns.com>> wrote: How would you enable the priority queue AND make sure queue 1 has 10% of the bandwidth. The documentation states that if the priority queue in enabled, shape and share configuration for that queue is ignored. So how do you accomplish this without using Shape command. ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com> ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
Re: [OSL | CCIE_Voice] Layer 2 QOS
Jeff - I've struggled with the same issue. This is something I'd really like Vik or Amy to comment on. If we need to treat traffic as priority while also dedicating 10% to that traffic, how would you do that? I thought Vik said to just remove the priority-queue out command under the interface (during our OWLE) but it still doesn't seem right to me. Any others? Matthew Berry **Sent from my iPhone** Skype/Twitter: ciscovoiceguru Google Voice: +1 612 424 5044 On Jul 29, 2010, at 20:56, Jeff Cotter wrote: > Hello Matthew and thanks for the reply. However my thought is……putting COS 5 > and EF into Q1 does not make it a priority queue. Which by definition means > the queue is serviced until it is empty BEFORE the other queues are serviced. > This behavior is only in effect with the priority queue out command. > > > > > > The Ingress queues have the proper commands to control the size of the > priority queue mls qos srr-queue input priority-queue queue-id bandwidth > weight but not the egress queues. > > > > Of course I my logic could be flawed here. > > > > > > > > From: Matthew Berry [mailto:ciscovoiceg...@gmail.com] > Sent: Thursday, July 29, 2010 6:48 PM > To: Jeff Cotter > Cc: ccie_voice@onlinestudylist.com > Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS > > > > You could treat it as a priority queue by throwing CoS 5 or DSCP EF into Q1. > You could then shape it to 10, which would result in 10%. You would also need > to do a "no priority-queue out" under the interface. > > > > But I don't think you can have priority on the queue and still limit the > queue to only part of the pipe. > > > > Matthew Berry > > > > **Sent from my iPhone** > > Skype/Twitter: ciscovoiceguru > > Google Voice: +1 612 424 5044 > > > On Jul 29, 2010, at 20:19, Jeff Cotter wrote: > > How would you enable the priority queue AND make sure queue 1 has 10% of the > bandwidth. The documentation states that if the priority queue in enabled, > shape and share configuration for that queue is ignored. So how do you > accomplish this without using Shape command. > > ___ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
Re: [OSL | CCIE_Voice] Layer 2 QOS
In my opinion this is done by adjusting the buffer size for queue 1 and applying it to a queue-set. srr shape statement in my opinion means nothing in relation to adjusting priority queue size. http://onlinestudylist.com/archives/ccie_voice/2010-July/069398.html On Fri, Jul 30, 2010 at 1:19 PM, Jeff Cotter wrote: > How would you enable the priority queue AND make sure queue 1 has 10% of > the bandwidth. The documentation states that if the priority queue in > enabled, shape and share configuration for that queue is ignored. So how do > you accomplish this without using Shape command. > > ___ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
Re: [OSL | CCIE_Voice] Layer 2 QOS
Hello Matthew and thanks for the reply. However my thought is……putting COS 5 and EF into Q1 does not make it a priority queue. Which by definition means the queue is serviced until it is empty BEFORE the other queues are serviced. This behavior is only in effect with the priority queue out command. The Ingress queues have the proper commands to control the size of the priority queue mls qos srr-queue input priority-queue queue-id bandwidth weight but not the egress queues. Of course I my logic could be flawed here. From: Matthew Berry [mailto:ciscovoiceg...@gmail.com] Sent: Thursday, July 29, 2010 6:48 PM To: Jeff Cotter Cc: ccie_voice@onlinestudylist.com Subject: Re: [OSL | CCIE_Voice] Layer 2 QOS You could treat it as a priority queue by throwing CoS 5 or DSCP EF into Q1. You could then shape it to 10, which would result in 10%. You would also need to do a "no priority-queue out" under the interface. But I don't think you can have priority on the queue and still limit the queue to only part of the pipe. Matthew Berry **Sent from my iPhone** Skype/Twitter: ciscovoiceguru Google Voice: +1 612 424 5044 On Jul 29, 2010, at 20:19, Jeff Cotter mailto:jcot...@voxns.com>> wrote: How would you enable the priority queue AND make sure queue 1 has 10% of the bandwidth. The documentation states that if the priority queue in enabled, shape and share configuration for that queue is ignored. So how do you accomplish this without using Shape command. ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com> ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
Re: [OSL | CCIE_Voice] Layer 2 QOS
You could treat it as a priority queue by throwing CoS 5 or DSCP EF into Q1. You could then shape it to 10, which would result in 10%. You would also need to do a "no priority-queue out" under the interface. But I don't think you can have priority on the queue and still limit the queue to only part of the pipe. Matthew Berry **Sent from my iPhone** Skype/Twitter: ciscovoiceguru Google Voice: +1 612 424 5044 On Jul 29, 2010, at 20:19, Jeff Cotter wrote: > How would you enable the priority queue AND make sure queue 1 has 10% of the > bandwidth. The documentation states that if the priority queue in enabled, > shape and share configuration for that queue is ignored. So how do you > accomplish this without using Shape command. > > ___ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
[OSL | CCIE_Voice] Layer 2 QOS
How would you enable the priority queue AND make sure queue 1 has 10% of the bandwidth. The documentation states that if the priority queue in enabled, shape and share configuration for that queue is ignored. So how do you accomplish this without using Shape command. ___ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
