From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Fri Apr 04 2008 - 19:43:18 ART
Clients won't let you change things,
Transparents won't learn things from others.
What do you mean by "messing up vlan settings" ?
Athaide, Dwayne @ 04/04/2008 19:36 -0300 dixit:
> So basically is it safe to assume that regardless of the VTP version on
> the 4 switches I can change a single switch or rather 3 of the from
> client/server to transparent thus leaving one as server and it won't
> mess up my VLAN settings?
>
> Thanks
> -----Original Message-----
> From: Gary Braver [mailto:gbraver@fastlanenetworks.com]
> Sent: Friday, April 04, 2008 2:51 PM
> To: 'Carlos G Mendioroz'; Athaide, Dwayne
> Cc: 'groupstudy'
> Subject: RE: VTP
>
> I painfully went through this.
>
> Your switch is in client mode. It has vlans automatically stored in the
> vlan.dat file (received from the server).
>
> You change the connection to vtp mode transparent.
>
> Transparent mode can have vlans defined in the config or through the
> vlan database. Since the vlan database exists the vlans will be loaded
> from the vlan.dat file
>
> You reboot and the vlan.dat file is still there. You can even do a
> write erase and the vlan.dat file will still be there.
>
> Wither later revisions of IOS You can delete the vlan.dat file and enter
> all vlan info in the config directly. Believe the vlan info will still
> be stored in the vlan.dat file but since all vlan config is in the main
> config you could take the config to a new identical switch / replace the
> switch without loosing all the vlan info.
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Carlos G Mendioroz
> Sent: Friday, April 04, 2008 1:07 PM
> To: Athaide, Dwayne
> Cc: groupstudy
> Subject: Re: VTP
>
> Dwayne,
> inline:
>
> Athaide, Dwayne @ 03/04/2008 10:57 -0300 dixit:
>> I had asked a similar question pertaining to a scenario but did not
> get
>> a response so I am going to generalize the question .
>>
>>
>>
>> I have 4 switches SW1 (S)-SW2(S)-SW3(T)-SW4(S). All switches are
>> trunked and belong in the same VTP domain.
>>
>>
>>
>> SW1, SW2, SW4 are Server
>>
>> SW3 is a Transparent switch.
>>
>>
>>
>> SW1(S)---Trunk-----SW2(S)----Trunk ------SW3(T)-------Trunk----SW4(S)
>>
>>
>>
>>
>>
>> Now say to start off all switches have VLAN's 1 thru 10. The switches
>> are running VTP version 1. And VTP pruning is enabled.
>>
>>
>>
>> 1. Now say I build a new VLAN on SW1. Will that VLAN be
>> propagated to Switch SW4.?
>>
>>
>>
>> My Answer :When I lab this up it did get propagated and this confused
> me
>> as I was under the impression that Version 1 VTP on a transparent
> switch
>> will not propagate the VLAN only VTP version 2 would.
>
> AFAIK, main difference between v1 & v2 is token ring support.
> Transparent should enable VTP to pass through, as it does according to
> your lab.
>
>> 2. Say I have a Router A connected to Access port VLAN 10 on SW3
>> and a routed port on SW2 . Should Router A be able to ping Router B
> &
>> vice versa thru the transparent switch?
>>
>>
>>
>>
> RA-(VLAN10)------SW3----------Trunk----------------SW4(Vlan10)----------
>> ----Routed port(SW2)
>>
>>
>>
>> I can although when I do a show int trunk on SW4 I show VLAN 10 to be
>> pruned.
>
>
> Typo here ? You say "router port on SW2" and draw SW4.
> If it is in SW2, prunned at SW4 will have no effect.
> Also, prunning stops broadcast only, so if you ping from the prunned
> side, you will lift the bann, so to say .
>
> -Carlos
>
>>
>>
>>
>> Thanks
>>
>>
> _______________________________________________________________________
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>>
>
-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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