Many thanks to everyone who responded. I was able to finally get to the root of the issue. Looks like I had adjusted the IP MTU on my ingress interface between the ASR and the Adtran to the appropriate level but only had the interface MTU set to 1522. As soon as I set that to 1600 everything worked fine. Now, I am attributing the fix to this change but I had made some others and this to me at least does not seem logical, but I am not going to look a gift horse in the mouth this time. But I will be labbing this up again to figure out exactly what i had done wrong, or at least to confirm I can do it right in the future. So the problem managed to get me down the rabbit hole a bit too far.
Now on to my next challenge. Hoping 3.9S will allow me to run EVCs on ether-channels as documented. Currently on 3.7S. Thanks again guys. Eric ________________________________ From: Kenyone Johnson <[email protected]> To: "[email protected]" <[email protected]> Sent: Monday, May 13, 2013 4:06 PM Subject: [OSL | CCIE_RS] 1. Re: MTU and Domain groups (Les Waller)8 Hello Les, I would say continue changing the mtu on your pings until you see the largest size you are able to ping, then make your mtu that minus 1500. > From: [email protected] > Subject: CCIE_RS Digest, Vol 88, Issue 8 > To: [email protected] > Date: Mon, 13 May 2013 12:00:03 -0400 > > Send CCIE_RS mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/mailman/listinfo/ccie_rs > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CCIE_RS digest..." > > > Today's Topics: > > 1. Re: MTU and Domain groups (Les Waller) > 2. pim accept-rp (Imran Ali) > 3. Re: pim accept-rp (Saleh Batouq) > 4. Proctor Labs (Houssam Chahine) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 12 May 2013 18:39:05 +0200 > From: Les Waller <[email protected]> > To: ccie <[email protected]> > Subject: Re: [OSL | CCIE_RS] MTU and Domain groups > Message-ID: > <cama81sgslqteehsrrpko+uezxunrnf13l9230zb2vroy66z...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Does a ping of 1496 work, but not 1497? > > Remember in Q-in-Q the four-byte overhead, on our 3560s we need to set the > system MTU to 1504. Not sure if that is the same problem or not, but you > should define exactly where the break in size first as part of your > troubleshooting. > > Les > > > On Sun, May 12, 2013 at 5:55 PM, Eric campbell <[email protected]>wrote: > > > First I would apologize to the other poster for inadvertently Hijacking > > his thread. > > > > > > I will start a new thread at this point and maybe That will work. > > > > > > Folks, > > > > I just want to start off by saying thanks to all of the regulars in the > > group for the consistent knowledge sharing. > > > > I am a long time Lurker, but I have stumbled onto something which has me > > puzzled to say the least. > > > > I am attempting to create a bridge domain between two interfaces on an > > ASR 1006 and am running into a strange MTU issue. > > > > > > Everything is working fine I am tunneling my q-in-q/802.1q traffic > > popping and pushing the necessary tags and what not, however when I try > > to ping accross it using a 1500 byte packet with the df bit set i > > cannot. I can ping across it with a 1400 byte packet but of course this > > is not the magic number. > > > > I have tried setting the MTU at the > > interfaces involved (gig interfaces) but cannot for the life of me > > figure out why this is happening. This happens with a single tag as well > > as a stack of them. I do not have a BDI interface at the moment, but I > > am not sure i really need one since I am transiting the box. The only > > thing that i am able to think of at the moment is some sort of system > > wide MTU setting. This may become a no duh moment for me in the end, but > > I cannot find the command if it exists. Any guidance would be > > appreciated. If there is any information that is lacking let me know and > > i will get it out here. > > > > > > This is a rather small test environment at the moment. > > > > I have an Adtran 8044 - directly to the ASR on gig 0/1/1 the ASR then > > bridges this traffic to the interface Gig 0/1/2 - which then places it on > > the wire as a single tagged trunk going into a 6509 trunk port and finally > > terminating on an SVI. On the other side of the Adtran is a simple laptop > > connected to the 8044 which is where I am originating the 1500 byte pings > > that terminate to the SVI on the 6509. > > > > The 8044 simply takes the packet in as a native packet in this case, > > applies a 802.1q tag to it, and then ships it out a trunk port to the ASR. > > The 8044 has a MTu set at 2000 on this port, The ASR has an interface level > > MTU of 1600 and the 6509 has an MTU of 1500. Also I have tried it with the > > MTu set at Max on the 6509 as well. Like I said I am sure that in a setup > > as small as this the answer is staring me in the eye. > > > > Since the 6509 is receiving a trunk port off of the ASR with a single tag > > applied I feel the problem is probably not there. The Adtran takes the > > taffic in from the laptop at 1500 MTU and then applies its tag then > > shipping it out. > > > > I have also tried performing this ping from a 7206 I have that is spare > > set up like the laptop in this case using the same parameters. > > > > Thanks for assisting > > > > > > > > Thanks to all, > > Eric > > _______________________________________________ > > 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://onlinestudylist.com/mailman/listinfo/ccie_rs > > > > > > -- > Les Waller, Network Engineer ..:|:..:|:.. > > Home Page: *http://www.facebook.com/groups/325762454132531/* > * > *MBA, CISSP, CCNP/CCDA > > > ------------------------------ > > Message: 2 > Date: Mon, 13 May 2013 08:58:55 +0300 > From: Imran Ali <[email protected]> > To: "[email protected]" <[email protected]> > Subject: [OSL | CCIE_RS] pim accept-rp > Message-ID: > <cah7egzdfkfyvfsrguc3-q5wszwyacjibepo7sjoyxestufu...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > hi all > > guys if we are using auto rp , and let say task suggest we allow only > *,G joins only for active groups. > > do we need to allow auto rp groups in accept rp ? > > ip pim accept-rp auto ALLOWED > > ip access-list ALLOWED > permit 224.0.1.40 > permit 224.0.1.39 > permit 224.1.1.1 > > > ------------------------------ > > Message: 3 > Date: Mon, 13 May 2013 12:13:21 +0400 > From: Saleh Batouq <[email protected]> > To: Imran Ali <[email protected]> > Cc: "[email protected]" <[email protected]> > Subject: Re: [OSL | CCIE_RS] pim accept-rp > Message-ID: > <caezok32zd7ou9nx2uc1qy9la-m6+mchof921l4fbap8j05k...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I understand from your question is that you need to only use the SHARED > TREE (*,G) and not to build the SOURCE BASED TREE (S,G) so you have only > two options. > 1. ip pim spt-threshold infinity ACL . where the ACL is a standard acl that > specify the Groups. > 2. biderectional pim. Enabled in your network. > On May 13, 2013 10:04 AM, "Imran Ali" <[email protected]> wrote: > > > hi all > > > > guys if we are using auto rp , and let say task suggest we allow > > only > > *,G joins only for active groups. > > > > do we need to allow auto rp groups in accept rp ? > > > > ip pim accept-rp auto ALLOWED > > > > ip access-list ALLOWED > > permit 224.0.1.40 > > permit 224.0.1.39 > > permit 224.1.1.1 > > _______________________________________________ > > 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://onlinestudylist.com/mailman/listinfo/ccie_rs > > > > > ------------------------------ > > Message: 4 > Date: Mon, 13 May 2013 11:29:56 +0300 > From: Houssam Chahine <[email protected]> > To: "[email protected]" <[email protected]> > Subject: [OSL | CCIE_RS] Proctor Labs > Message-ID: > <capapdxcqy1dqu_oijiufpj24cho0hezryktte7auiv4zj2y...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I have a small question dedicated to the Teachers, > > I am practicing recently using proctor labs, and my question is, is there > any possibility once you load the initial configuration, it doesn't load > perfectly? Today i was doing Vol3-Lab2C. Many tasks that i was supposed to > configure was already there, for example: > > 1- I was supposed to enable " Portfast Trunk" on the appropriate interfaces > but it was already there. > 2- I am supposed to have a problem pinging BB1, but i didn't face any > problem pinging it. > 3- on Cat1 fa 0/11 i was supposed to disable port security for mac > 0006.5331.9e41 which was not there... instead i had a log error since the > moment i typed my credentials, "Security violation caused by MAc > 0000.0000.0001 ... > 4- There is still some that didn't come to my mind now. > > In brief, for the second time so far, once i compare the initial config of > some devices to the initial config file that comes with the book, i found > there is difference, or the task that i am suppose to accomplish, is > already preconfigured. > > Please advise. > > > End of CCIE_RS Digest, Vol 88, Issue 8 > ************************************** _______________________________________________ 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://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ 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://onlinestudylist.com/mailman/listinfo/ccie_rs
