Re: VTP Issue

From: ALL From_NJ (all.from.nj@gmail.com)
Date: Fri Feb 27 2009 - 12:38:30 ARST

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As Daniel and Jason mentioned, run SW4 in transparent mode.

It will forward the vtp announcements from peers, while ignoring the
contents of these announcements.

Here is a helpful link (watch for the ugly word wrap):
http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_44_se/configuration/guide/swvtp.html#wp1205076

HTH,

Andrew

On Fri, Feb 27, 2009 at 9:10 AM, Nadeem Ansari
<nadeem.ansari574@gmail.com>wrote:

> It is mendatory for switches to be in same VTP domain across entire
> topology
> to propogate the VTP advertisement it does not matter wether they are in
> Server mode or transparent mode, So Case-4 conclusion is correct
> Regards
> Nadeem
> On Fri, Feb 27, 2009 at 7:33 PM, Jason Morris <mcnever@gmail.com> wrote:
>
> > I'm not sure that your Case-4 results are accurate, did you test it with
> > sw4
> > in transparent mode? that should allow vtp information to pass from sw1
> to
> > sw2
> >
> > jason
> >
> > On Fri, Feb 27, 2009 at 6:26 AM, Pavel Bykov <slidersv@gmail.com> wrote:
> >
> > > VTP runs in VLAN1, which is not prunnable or removable. Even when you
> > > remove
> > > it administratively from the trunk, in reality it will still be
> > > operational.
> > > What is required by vtp is the same domain name and password. If they
> > match
> > > then all modes forward messages.
> > >
> > > On Fri, Feb 27, 2009 at 10:18 AM, Daniel Kutchin <daniel@kutchin.com>
> > > wrote:
> > >
> > > > Naveen -
> > > >
> > > > For VTP information to be propagated by SW4,
> > > > following conditions should be met:
> > > >
> > > > 1. Domain names must match on all Switches
> > > > 2. Disable Pruning on SW4 (not quite sure of this)
> > > > 2. SW4 can be in Transparent mode
> > > >
> > > > Debugging will be useful here: "debug sw-vlan vtp events"
> > > >
> > > > Also view this Video (you need a CCO Account)
> > > > http://www.cisco.com/warp/customer/473/vtp_flash/
> > > >
> > > >
> > > >
> > > > -
> > > > Daniel
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of
> > > > naveen M S
> > > > Sent: Freitag, 27. Februar 2009 09:08
> > > > To: Cisco certification
> > > > Subject: Re: VTP Issue
> > > >
> > > > Folks,
> > > >
> > > > Here is complete results of my experiments. Hope this benefits you.
> > > >
> > > > SW1-------SW4--------SW2
> > > >
> > > > X,Y,Z = Domain,Mode,Ver
> > > > Mode 'Any' = client or server or transparent
> > > >
> > > > *Case-1)*
> > > > cisco,Server,2 -------- cisco,Any,2 --------- cisco,Client,2
> > > >
> > > > *Result:*
> > > > Any vlan changes on SW1 is propogated to SW4 and SW2
> > > > Note that when both SW1 and SW4 are VTP servers, changes
> > > > on one server is updated by other server. Also, SW4 does't
> > > > update Vlan changes while in Transparent mode.
> > > >
> > > >
> > > > *Case-2)*
> > > > cisco,Server,2 -------- iewb,Any,2 ---------- cisco,Client,2
> > > >
> > > > *Result:*
> > > > Any vlan changes on SW1 is NOT propogated to SW4 and SW2
> > > >
> > > >
> > > > *Case-3)*
> > > > cisco,Server,1 -------- cisco,Any,1 --------- cisco,Client,1
> > > >
> > > > *Result:*
> > > > Any vlan changes on SW1 is propogated to SW4 and SW2
> > > > Note that when both SW1 and SW4 are VTP servers, changes
> > > > on one server is updated by other server. Also, SW4 does't
> > > > update Vlan changes while in Transparent mode.
> > > >
> > > >
> > > > *Case-4)*
> > > > cisco,Server,2 -------- iewb,Any,2 ---------- cisco,Client,2
> > > >
> > > > *Result:*
> > > > Any vlan changes on SW1 is NOT propogated to SW4 and SW2
> > > >
> > > >
> > > > What bothers me is that how to get VTP updates from SW1 to SW2 ?
> > > > My task doesn't allow me to do Q-in-Q or L2protocol tunnelling.
> > > >
> > > > All ideas are welcome.
> > > > Naveen.
> > > >
> > > >
> > > > On Thu, Feb 26, 2009 at 11:05 PM, naveen M S <navin.ms@gmail.com>
> > wrote:
> > > >
> > > > > Yes. This is VTP version 2.
> > > > >
> > > > >
> > > > >
> > > > > On Thu, Feb 26, 2009 at 10:58 PM, joshua atterbury <
> > > > > joshuaatterbury@gmail.com> wrote:
> > > > >
> > > > >>
> > > > >> are you using vtp version 2?
> > > > >>
> > > > >> On Fri, Feb 27, 2009 at 5:55 PM, naveen M S <navin.ms@gmail.com>
> > > wrote:
> > > > >>
> > > > >>> Folks,
> > > > >>>
> > > > >>> Here is my scenario. Seems trivial but can't get it to work.
> > > > >>>
> > > > >>> SW1-------SW4-------SW2
> > > > >>>
> > > > >>> SW1 : VTP domain = cisco, Mode = server
> > > > >>> SW2 : VTP domain = cisco, Mode = client
> > > > >>> SW4 : VTP domain = iewb, Mode = server
> > > > >>>
> > > > >>> The 802.1q trunk links are established b/n the 3 switches and
> vlan
> > 1
> > > is
> > > > >>> native on them.
> > > > >>>
> > > > >>> Changes to vlan in SW1 are NOT propogated to SW2. What could be
> the
> > > > >>> problem
> > > > >>> ?
> > > > >>>
> > > > >>> *SW1:*
> > > > >>> interface GigabitEthernet1/0/20
> > > > >>> switchport trunk encapsulation dot1q
> > > > >>> switchport mode trunk
> > > > >>> switchport nonegotiate
> > > > >>>
> > > > >>> *SW4:*
> > > > >>> interface GigabitEthernet1/0/14
> > > > >>> switchport trunk encapsulation dot1q
> > > > >>> switchport mode trunk
> > > > >>> switchport nonegotiate
> > > > >>> !
> > > > >>> interface GigabitEthernet1/0/16
> > > > >>> switchport trunk encapsulation dot1q
> > > > >>> switchport mode trunk
> > > > >>> switchport nonegotiate
> > > > >>>
> > > > >>> *SW2:*
> > > > >>> interface GigabitEthernet1/0/19
> > > > >>> switchport trunk encapsulation dot1q
> > > > >>> switchport mode trunk
> > > > >>> switchport nonegotiate
> > > > >>>
> > > > >>> Rack1SW1# sh int trunk
> > > > >>>
> > > > >>> Port Mode Encapsulation Status Native
> > vlan
> > > > >>> Gi1/0/20 on 802.1q trunking 1
> > > > >>>
> > > > >>> Rack1SW4# show int trunk
> > > > >>>
> > > > >>> Port Mode Encapsulation Status Native
> > vlan
> > > > >>> Gi1/0/14 on 802.1q trunking 1
> > > > >>> Gi1/0/16 on 802.1q trunking 1
> > > > >>>
> > > > >>> Rack1SW2# sh int trunk
> > > > >>>
> > > > >>> Port Mode Encapsulation Status Native
> > vlan
> > > > >>> Gi1/0/19 on 802.1q trunking 1
> > > > >>>
> > > > >>>
> > > > >>> Blogs and organic groups at http://www.ccie.net
> > > > >>>
> > > > >>>
> > > _______________________________________________________________________
> > > > >>> Subscription information may be found at:
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> > > >
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> _______________________________________________________________________
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> _______________________________________________________________________
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> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > --
> > > Pavel Bykov
> > > ----------------
> > > Don't forget to help stopping the braindumps, use of which reduces
> value
> > of
> > > your certifications. Sign the petition at
> http://www.stopbraindumps.com/
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
> > > _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
> >
> >
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> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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>

-- Andrew Lee Lissitz all.from.nj@gmail.com

Blogs and organic groups at http://www.ccie.net

Next message: Anthony Faria: "Re: Dynamips on fedora"
Previous message: Nadeem Ansari: "Re: cbwfq logic help"
Maybe in reply to: naveen M S: "VTP Issue"
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