Re: [OSL | CCIE_Voice] WAN QOS Strategy Question.
Hey everyone, I can confirm after A LOT of testing, if you are given a QOS requirement for only one of the two Frame PVCs, and you use Auto QOS, you will have a problem. Auto QOS will automatically config Frame-relay Traffic shaping on the physical WAN interface and then configure the PVC you are QOS'ing to the bandwidth that is noted under the sub interface. The other sub interface gets left with the default frame-relay traffic shaping behavior which is to drop CIR to 56k on the PVC. Do a Show Frame PVC dlci# on both PVC's after running auto qos. I think this could be an intended Rat hole on the exam. If you only have to configure Hq-SB QOS and you don't know much more the to run autoqos and tweak a couple parameters, your SC communications will start to fail with a PVC CIR of 56k. On Sat, Dec 3, 2011 at 10:00 AM, Ken Wyan kew...@gmail.com wrote: Hi, I think you got 56k value from this document which was published in 2005 with IOS version 11. (somehow same age as QoS SRND) http://www.cisco.com/en/US/tech/tk713/tk237/technologies_configuration_example09186a00800942f8.shtml I think it's better to put auto qos voip or auto qos voip fr-atm in the remaining interface as well (without any bandwidth as it's not mentioned in exam). Then itll take 1.5M by default. Is there a command to verify that FRTS use 56k bandwidth because above documents are very old. Ken On Sat, Dec 3, 2011 at 8:54 AM, ccielabrat ccielab...@gmail.com wrote: To All, I've been trying to figure the best/fastest way to get a WAN QOS requirement completed on exam day. I've become very comfortable with Auto-QOS and making the needed tweaks, so Auto-QOS is the way I'm going to use. The one piece of the strategy that I'm stilll wondering about is if WAN QOS is specified for only one of the PVC's. Auto-QOS will automatically put Frame-relay traffic shaping on the physical interface which has the side effect of leaving the other pvc with a 56k PVC speed. My solution here is to create a frame-relay map-class with the following parameters. map-class frame-relay Not56k frame-relay traffice-rate 1536 I apply this map-class to the other sub-interface/PVC which negates the 56k problem. I'm curious if anyone has an opinion on the Pros/Cons of this approach and if it might negate requirements somehow. ___ 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
Re: [OSL | CCIE_Voice] WAN QOS Strategy Question.
This is correct. It's not AutoQoS that causes the problem- its because you MUST have FRTS enabled in order for the map-class to be attached to the DLCI. And this must happen since the service policy is inside the map-class. I recommend you run AutoQoS on all routers when doing WAN QoS or at the very least attach a map-class to all DLCI's. Also be careful if you are using cRTP. You should ensure that if you are using cRTP that both ends of the pipe are configured with cRTP otherwise you will experience one way audio. Vik Malhi – CCIE #13890 Managing Partner - IPexpert, Inc. Telephone: +1.810.326.1444 ext 420 Fax: +1.810.454.0130 Mailto: vma...@ipexpert.com On Dec 3, 2011, at 10:59 AM, ccielabrat wrote: Hey everyone, I can confirm after A LOT of testing, if you are given a QOS requirement for only one of the two Frame PVCs, and you use Auto QOS, you will have a problem. Auto QOS will automatically config Frame-relay Traffic shaping on the physical WAN interface and then configure the PVC you are QOS'ing to the bandwidth that is noted under the sub interface. The other sub interface gets left with the default frame-relay traffic shaping behavior which is to drop CIR to 56k on the PVC. Do a Show Frame PVC dlci# on both PVC's after running auto qos. I think this could be an intended Rat hole on the exam. If you only have to configure Hq-SB QOS and you don't know much more the to run autoqos and tweak a couple parameters, your SC communications will start to fail with a PVC CIR of 56k. On Sat, Dec 3, 2011 at 10:00 AM, Ken Wyan kew...@gmail.com wrote: Hi, I think you got 56k value from this document which was published in 2005 with IOS version 11. (somehow same age as QoS SRND) http://www.cisco.com/en/US/tech/tk713/tk237/technologies_configuration_example09186a00800942f8.shtml I think it's better to put auto qos voip or auto qos voip fr-atm in the remaining interface as well (without any bandwidth as it's not mentioned in exam). Then itll take 1.5M by default. Is there a command to verify that FRTS use 56k bandwidth because above documents are very old. Ken On Sat, Dec 3, 2011 at 8:54 AM, ccielabrat ccielab...@gmail.com wrote: To All, I've been trying to figure the best/fastest way to get a WAN QOS requirement completed on exam day. I've become very comfortable with Auto-QOS and making the needed tweaks, so Auto-QOS is the way I'm going to use. The one piece of the strategy that I'm stilll wondering about is if WAN QOS is specified for only one of the PVC's. Auto-QOS will automatically put Frame-relay traffic shaping on the physical interface which has the side effect of leaving the other pvc with a 56k PVC speed. My solution here is to create a frame-relay map-class with the following parameters. map-class frame-relay Not56k frame-relay traffice-rate 1536 I apply this map-class to the other sub-interface/PVC which negates the 56k problem. I'm curious if anyone has an opinion on the Pros/Cons of this approach and if it might negate requirements somehow. ___ 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 ___ 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
Re: [OSL | CCIE_Voice] WAN QOS Strategy Question.
Thanks for clarifying this Vik. I wasn't aware of the crtp one way audio trap. But I'll keep it in mind. One question : I thought we could avoid having the frame relay traffic shaping on the physical interface if we did generic traffic shaping via class-map within the frame-relay map-class. Is this not the case? I vaguely remember what you are talking about where I wasn't able to apply a class to a DLCI and it prompted a message asking for traffic shaping to be enabled. Just wondering if there is work around or is it a hard and fast rule that Frame traffic shaping MUST be on the physical interface. On Sat, Dec 3, 2011 at 4:15 PM, Vik Malhi vma...@ipexpert.com wrote: This is correct. It's not AutoQoS that causes the problem- its because you MUST have FRTS enabled in order for the map-class to be attached to the DLCI. And this must happen since the service policy is inside the map-class. I recommend you run AutoQoS on all routers when doing WAN QoS or at the very least attach a map-class to all DLCI's. Also be careful if you are using cRTP. You should ensure that if you are using cRTP that both ends of the pipe are configured with cRTP otherwise you will experience one way audio. Vik Malhi – CCIE #13890 Managing Partner - IPexpert, Inc. Telephone: +1.810.326.1444 ext 420 Fax: +1.810.454.0130 Mailto: vma...@ipexpert.com On Dec 3, 2011, at 10:59 AM, ccielabrat wrote: Hey everyone, I can confirm after A LOT of testing, if you are given a QOS requirement for only one of the two Frame PVCs, and you use Auto QOS, you will have a problem. Auto QOS will automatically config Frame-relay Traffic shaping on the physical WAN interface and then configure the PVC you are QOS'ing to the bandwidth that is noted under the sub interface. The other sub interface gets left with the default frame-relay traffic shaping behavior which is to drop CIR to 56k on the PVC. Do a Show Frame PVC dlci# on both PVC's after running auto qos. I think this could be an intended Rat hole on the exam. If you only have to configure Hq-SB QOS and you don't know much more the to run autoqos and tweak a couple parameters, your SC communications will start to fail with a PVC CIR of 56k. On Sat, Dec 3, 2011 at 10:00 AM, Ken Wyan kew...@gmail.com wrote: Hi, I think you got 56k value from this document which was published in 2005 with IOS version 11. (somehow same age as QoS SRND) http://www.cisco.com/en/US/tech/tk713/tk237/technologies_configuration_example09186a00800942f8.shtml I think it's better to put auto qos voip or auto qos voip fr-atm in the remaining interface as well (without any bandwidth as it's not mentioned in exam). Then itll take 1.5M by default. Is there a command to verify that FRTS use 56k bandwidth because above documents are very old. Ken On Sat, Dec 3, 2011 at 8:54 AM, ccielabrat ccielab...@gmail.com wrote: To All, I've been trying to figure the best/fastest way to get a WAN QOS requirement completed on exam day. I've become very comfortable with Auto-QOS and making the needed tweaks, so Auto-QOS is the way I'm going to use. The one piece of the strategy that I'm stilll wondering about is if WAN QOS is specified for only one of the PVC's. Auto-QOS will automatically put Frame-relay traffic shaping on the physical interface which has the side effect of leaving the other pvc with a 56k PVC speed. My solution here is to create a frame-relay map-class with the following parameters. map-class frame-relay Not56k frame-relay traffice-rate 1536 I apply this map-class to the other sub-interface/PVC which negates the 56k problem. I'm curious if anyone has an opinion on the Pros/Cons of this approach and if it might negate requirements somehow. ___ 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
[OSL | CCIE_Voice] WAN QOS Strategy Question.
To All, I've been trying to figure the best/fastest way to get a WAN QOS requirement completed on exam day. I've become very comfortable with Auto-QOS and making the needed tweaks, so Auto-QOS is the way I'm going to use. The one piece of the strategy that I'm stilll wondering about is if WAN QOS is specified for only one of the PVC's. Auto-QOS will automatically put Frame-relay traffic shaping on the physical interface which has the side effect of leaving the other pvc with a 56k PVC speed. My solution here is to create a frame-relay map-class with the following parameters. map-class frame-relay Not56k frame-relay traffice-rate 1536 I apply this map-class to the other sub-interface/PVC which negates the 56k problem. I'm curious if anyone has an opinion on the Pros/Cons of this approach and if it might negate requirements somehow. ___ 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
Re: [OSL | CCIE_Voice] WAN QOS Strategy Question.
Hi All, I have stumble onto this website and it is very good. Check out the quickest way to apply QOS...thnx *http://pushkarbhatkoti.wordpress.com/category/qos-in-10-minutes/* Cheers Errol On Sat, Dec 3, 2011 at 2:24 PM, ccielabrat ccielab...@gmail.com wrote: To All, I've been trying to figure the best/fastest way to get a WAN QOS requirement completed on exam day. I've become very comfortable with Auto-QOS and making the needed tweaks, so Auto-QOS is the way I'm going to use. The one piece of the strategy that I'm stilll wondering about is if WAN QOS is specified for only one of the PVC's. Auto-QOS will automatically put Frame-relay traffic shaping on the physical interface which has the side effect of leaving the other pvc with a 56k PVC speed. My solution here is to create a frame-relay map-class with the following parameters. map-class frame-relay Not56k frame-relay traffice-rate 1536 I apply this map-class to the other sub-interface/PVC which negates the 56k problem. I'm curious if anyone has an opinion on the Pros/Cons of this approach and if it might negate requirements somehow. ___ 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
Re: [OSL | CCIE_Voice] WAN QOS Strategy Question.
This is really old information ... There are no catos switches on the exam ... Brat --- your approach is sound, however IMO it's only necessary to 'fix' the other sub-interface if they specifically call out a bandwidth setting for that interface ... If in doubt bring it to the proctor for clarification. KP On Dec 2, 2011, at 7:20 PM, Errol Abrahams eabraham2...@gmail.com wrote: Hi All, I have stumble onto this website and it is very good. Check out the quickest way to apply QOS...thnx http://pushkarbhatkoti.wordpress.com/category/qos-in-10-minutes/ Cheers Errol On Sat, Dec 3, 2011 at 2:24 PM, ccielabrat ccielab...@gmail.com wrote: To All, I've been trying to figure the best/fastest way to get a WAN QOS requirement completed on exam day. I've become very comfortable with Auto-QOS and making the needed tweaks, so Auto-QOS is the way I'm going to use. The one piece of the strategy that I'm stilll wondering about is if WAN QOS is specified for only one of the PVC's. Auto-QOS will automatically put Frame-relay traffic shaping on the physical interface which has the side effect of leaving the other pvc with a 56k PVC speed. My solution here is to create a frame-relay map-class with the following parameters. map-class frame-relay Not56k frame-relay traffice-rate 1536 I apply this map-class to the other sub-interface/PVC which negates the 56k problem. I'm curious if anyone has an opinion on the Pros/Cons of this approach and if it might negate requirements somehow. ___ 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 ___ 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
