From: Luca Hall (lhall@setnine.com)
Date: Fri Apr 04 2008 - 20:47:40 ART
yep meant vtp info.
if you change the vtp domain of the transparent switch that the vtp info
is crossing to a different domain from what it is sent from it wont be
forwarded anymore is what I should have said...
> Why would it stop forwarding the vlans ?
> May be you meant "forwarding VTP info about vlans" ?
> -Carlos
>
> Luca Hall @ 04/04/2008 20:05 -0300 dixit:
>> If they all know the same vlans and you change to whatever vtp mode it
>> wont change the vlans and they will be forwarded, if you change the vtp
>> domain
>> on the transparent switches they will stop forwarding the vlans.
>>
>>
>>
>>> 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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>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>
>>> --
>>> Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
>>>
>>> _______________________________________________________________________
>>> 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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>> http://www.groupstudy.com/list/CCIELab.html
>>
>
> --
> Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
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