From: Jordan Gottlieb (thelieber@gmail.com)
Date: Mon Oct 16 2006 - 00:31:38 ART
From http://www.cisco.com/warp/public/473/21.html"
VTP packets are sent in either Inter-Switch Link (ISL) frames or in IEEE
802.1Q (dot1q) frames. These packets are sent to the destination MAC address
01-00-0C-CC-CC-CC with a logical link control (LLC) code of Subnetwork
Access Protocol (SNAP) (AAAA) and a type of 2003 (in the SNAP header).
You should be able to configure a Name MAC Extended ACL filter. (
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225see/scg/swacl.htm#wp1177176)
this on the respective port. I have not tried this...But I believe it will
probably work.
I must caution people not to confuse DTP with VTP. The switchport
nonegotiate command is a DTP disable command (nothing to to with VTP).
Hope this helps. BTW... I passed my lab a week ago this past Thursday in
San Jose. Hope this input (and future to come) helps repay some of benifit
I have obtained from this board.
Erez Jordan Gottlieb
CCIE #17010
On 10/15/06, CharlesB <cbalik@adelphia.net> wrote:
>
> I assume since VTP runs on the trunks ports, getting the interface out of
> trunk mode would solve the issue.
>
> sw1#sh vtp cou
> sw1#sh vtp counters
> VTP statistics:
> Summary advertisements received : 0
> Subset advertisements received : 0
> Request advertisements received : 0
> Summary advertisements transmitted : 0
> Subset advertisements transmitted : 0
> Request advertisements transmitted : 0
> Number of config revision errors : 0
> Number of config digest errors : 0
> Number of V1 summary errors : 0
>
>
> VTP pruning statistics:
>
> Trunk Join Transmitted Join Received Summary advts received
> from
> non-pruning-capable
> device
> ---------------- ---------------- ----------------
> -------------------------
> --
> Fa0/13 0 0 0
> Fa0/14 0 0 0
> Fa0/15 0 0 0
> Fa0/24 0 0 0------------------>
> check it out
>
>
>
>
> s1#interface FastEthernet0/24
> switchport mode dynamic desirable
>
>
>
> Since it is in desirable mode, it negotiates the trunk status wit the
> other
> link, but if it is a switchport, the vtp counters does not list it
> anymore.
>
> sw1(config)#inter fas0/24
> sw1(config-if)#sw
> sw1(config-if)#switchport mode acc
> sw1(config-if)#end
> sw1#sh
> 10w2d: %SYS-5-CONFIG_I: Configured from console by conssh vtp counters
> VTP statistics:
> Summary advertisements received : 0
> Subset advertisements received : 0
> Request advertisements received : 0
> Summary advertisements transmitted : 0
> Subset advertisements transmitted : 0
> Request advertisements transmitted : 0
> Number of config revision errors : 0
> Number of config digest errors : 0
> Number of V1 summary errors : 0
>
>
> VTP pruning statistics:
>
> Trunk Join Transmitted Join Received Summary advts received
> from
> non-pruning-capable
> device
> ---------------- ---------------- ----------------
> -------------------------
> --
> Fa0/13 0 0 0
> Fa0/14 0 0 0
> Fa0/15 0 0 0
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Adam Frederick
> Sent: Sunday, October 15, 2006 6:15 PM
> To: ccielab@groupstudy.com
> Subject: Disabling VTP
>
>
> ?
> Group
>
> I am working on a practice lab that utilizes 2x3550's & calls for
> disabling
> VTP on the fastethernet interfaces. I have searched and searched and
> haven't seen that it is possible to disable VTP on a per-interface basis,
> is
> this correct? I think the solution is to change VTP to transparent since
> the gigabit ports are not being utilized at all in the practice
> lab. Could
> someone confirm this?
>
> Thanks,
> Adam
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Adam Frederick
> Sent: Sunday, October 15, 2006 6:15 PM
> To: ccielab@groupstudy.com
> Subject: Disabling VTP
>
>
> ?
> Group
>
> I am working on a practice lab that utilizes 2x3550's & calls for
> disabling
> VTP on the fastethernet interfaces. I have searched and searched and
> haven't seen that it is possible to disable VTP on a per-interface basis,
> is
> this correct? I think the solution is to change VTP to transparent since
> the gigabit ports are not being utilized at all in the practice
> lab. Could
> someone confirm this?
>
> Thanks,
> Adam
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
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