From: Nadeem Ansari (nadeem.ansari574@gmail.com)
Date: Fri Feb 27 2009 - 12:10:15 ARST
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
> > > >>>
> > > >>>
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> > > >>>
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> > >
> > >
> > >
> >
> >
> > --
> > Pavel Bykov
> > ----------------
> > Don't forget to help stopping the braindumps, use of which reduces value
> of
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> >
> >
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