Well... the VTP won't update without trunks. -- Marko Milivojevic - CCIE #18427 (SP R&S) Senior CCIE Instructor - IPexpert
On Sun, Oct 28, 2012 at 9:19 PM, George Leslie <[email protected]> wrote: > > Hi Lukasz,When I configured, I had 1 server, 3 clients and this was set up > before trunks were configured between the four switches. I bumped up the > revision number on the server by adding and removing dummy vlans, and bumping > down on the clients by changing to transparent mode and back to client. > Nothing cured the issue except a reload. George. > > Date: Sun, 28 Oct 2012 22:57:32 +0000 >> From: [email protected] >> To: [email protected] >> Subject: Re: [OSL | CCIE_RS] VTP weirdness >> >> hm..I just reproduced that very easily. I configured all switches to be >> servers but they do not have the same databases. >> >> >> Cat1(config-if)#vtp mode server >> Setting device to VTP SERVER mode >> Cat1(config)#vtp domain IPexpert >> Changing VTP domain name from NULL to IPexpert >> Cat1(config)#vtp password ipexpert >> Setting device VLAN database password to ipexpert >> Cat1(config)#! >> >> >> *Mar 1 01:18:51.585: %SW_VLAN-4-VTP_USER_NOTIFICATION: VTP protocol >> user notification: MD5 digest checksum mismatch on receipt of equal >> revision summary on trunk: Po13 >> >> >> Cat1(config)#do show vtp status >> VTP Version : running VTP1 (VTP2 capable) >> Configuration Revision : 0 >> Maximum VLANs supported locally : 1005 >> Number of existing VLANs : 22 >> VTP Operating Mode : Server >> VTP Domain Name : IPexpert >> VTP Pruning Mode : Disabled >> VTP V2 Mode : Disabled >> VTP Traps Generation : Disabled >> MD5 digest : 0xEE 0x63 0xC2 0xA2 0x17 0x27 0xB9 >> 0x49 >> *** MD5 digest checksum mismatch on trunk: Po12 *** >> *** MD5 digest checksum mismatch on trunk: Po13 *** >> >> To eliminate this I have added ´dummy´ vlan on one of the switches so >> that revision number has increased. All other switches looked on the >> higher revision to update its databases. After this all md5 mismatch >> disapeared!. >> >> >> Cat4(config)# vlan 99 >> Cat4(config-vlan)#exit >> Cat4(config)#end >> >> Cat1(config)#do show vtp status >> VTP Version : running VTP1 (VTP2 capable) >> Configuration Revision : 1 >> Maximum VLANs supported locally : 1005 >> Number of existing VLANs : 23 >> VTP Operating Mode : Server >> VTP Domain Name : IPexpert >> VTP Pruning Mode : Disabled >> VTP V2 Mode : Disabled >> VTP Traps Generation : Disabled >> MD5 digest : 0x3B 0x98 0xFB 0xBF 0xDA 0xC6 0xDD >> 0x51 >> Configuration last modified by 215.12.34.14 at 3-1-93 01:18:53 >> Local updater ID is 215.0.0.11 on interface Lo0 (first layer3 interface >> found) >> >> Does that sound like valid solution? >> >> >> Regards, >> Lukasz >> >> >> On 2012-10-27 00:59, Marko Milivojevic wrote: >> > I think I know what might have happened, but it's hard to reproduce >> > without seeing the entire setup. I think your VTP server was trying >> > to >> > update clients on an STP blocking port. During your reboot, there >> > could have been a temporary situation when the STP topology was >> > temporarily different (switches not booting at the same time) and >> > that >> > actually fixed the issue for everyone, even if STP reconverged to the >> > original topology. >> > >> > MD5 errors were probably clients trying to update each other. >> > >> > -- >> > Marko Milivojevic - CCIE #18427 (SP R&S) >> > Senior CCIE Instructor - IPexpert >> > >> > On Fri, Oct 26, 2012 at 5:54 PM, George Leslie >> > <[email protected]> wrote: >> >> >> >> Hi all,This I did. I did a client to transparent to client change on >> >> all non-servers to set revision back to the start. I then did a proper >> >> domain to dummy domain back to proper domain change. I then added a >> >> dummy vlan to server and then removed it, and then repeated this >> >> severla times, making sure I exited out of vlan mode each time. It >> >> made absolutely no difference. Still got the Md5 errors and all >> >> trunks were operational. Nothing I did, other than a reload, cured the >> >> issue. The VTP server was up at revision 5, the clients were back at >> >> 0. All trunks were operational (sh int trunk), all passwords were the >> >> same (sh vtp pass and they had been pasted in from the SAME line in >> >> notepad, exactly the same paste). Weird. >> >> > From: [email protected] >> >>> Date: Fri, 26 Oct 2012 14:40:37 -0700 >> >>> To: [email protected] >> >>> CC: [email protected] >> >>> Subject: Re: [OSL | CCIE_RS] VTP weirdness >> >>> >> >>> On Fri, Oct 26, 2012 at 2:27 PM, marc abel <[email protected]> >> >>> wrote: >> >>> > No it means you need to bump the revision number on your server >> >>> by either >> >>> > creating a vlan or deleting a vlan. Basically if we both have >> >>> config >> >>> > revision 1 then I can't update you. If I create a vlan I will >> >>> have revision >> >>> > 2 which will overwrite your revision 1 and then we will be >> >>> synced. >> >>> >> >>> Correct. >> >>> >> >>> -- >> >>> Marko Milivojevic - CCIE #18427 (SP R&S) >> >>> Senior CCIE Instructor - IPexpert >> >>> _______________________________________________ >> >>> 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 >> > _______________________________________________ >> > 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 > > _______________________________________________ > 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
