The ASICs on the HWIC-4ESW do not support QoS mechanisms as other ethernet ports do so that is why you have to do QoS on a layer three device
On Wed, Jan 18, 2012 at 2:12 AM, Mohd Baqari <baqari.voic...@gmail.com>wrote: > Hi, > > HWIC module doesn't support trust/untrust even if command applied, it > won't be functional. > > I have explained this in details in my blog. If interested for more > details refer here http://x-ccie.blogspot.com/ > > Regards, > Mohammed Al Baqari > > Sent from my iPhone > > On Jan 18, 2012, at 11:14 AM, Rrcrumm <rrcr...@yahoo.com> wrote: > > > If the question says to trust packets, should you use the trust keyword > or is that there to throw you off. > > > > Sent from my iPhone > > > > On Jan 16, 2012, at 6:54 PM, Ashraf Ayyash <ash.ayy...@gmail.com> wrote: > > > >> Hello John , > >> > >> You thinking is correct however as the Packet will traverse over the > >> wan , it will be always subject to get modified by a lot of SW to > >> change specially the DSCP Value and so the QOS SRND recommend to Not > >> trust the packets coming from the wan and so we dont trust in the > >> Branches routers . > >> > >> The right answer for any QOS Question is what is in the SRND and i > >> believe thats why you will find it in the real lap in the desktop > >> > >> Ash > >> > >> On Mon, Jan 16, 2012 at 8:18 PM, John McGaughey (jomcgaug) > >> <jomcg...@cisco.com> wrote: > >>> Hello, > >>> > >>> > >>> > >>> In Workbook 2, Lab 10, question 5.2 it asks you to setup MLP LFI > between HQ > >>> and BR1. In the solution guide it has you use auto qos trust on the > HQ side > >>> but does not use trust on the BR1 side. The DSG guide says the reason > for > >>> not using the trust key word is because of the following: > >>> > >>> > >>> > >>> Note that we have not done any prior QOS classification/marking on the > ESW > >>> module therefore we will use class-based marking (no use of the trust > >>> keyword when running auto qos). > >>> > >>> > >>> > >>> But the phones use the following markings by default. > >>> > >>> > >>> > >>> signaling (SCCP or SIP) - CoS 3 / cs3 > >>> > >>> media (RTP) - CoS 5 / DSCP 46 (EF) > >>> > >>> > >>> > >>> Why couldn’t we just use the trust keyword on BR1 as well since the > phone is > >>> already marking the packets correctly? > >>> > >>> > >>> > >>> John > >>> > >>> > >>> _______________________________________________ > >>> 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 > _______________________________________________ > 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
