From: Syed Ali (testcricket@gmail.com)
Date: Tue Dec 23 2008 - 19:21:54 ARST
Hi Paul,
You are right on! Thanks for the detailed answer as it will
help me and many others.
thanks
Syed
On Tue, Dec 23, 2008 at 10:50 PM, paul cosgrove <paul.cosgrove@gmail.com>wrote:
> Oops... didn't mean to suggest that the running config is persistent. If
> it is saved in transparent mode, you can then delete the vlan.dat and reload
> without affecting vtp mode.
>
>
> On Tue, Dec 23, 2008 at 7:47 PM, paul cosgrove <paul.cosgrove@gmail.com>wrote:
>
>> Hi Syed,
>>
>> The easiest method is probably to use Narbik's suggestion of configuring
>> VTP settings which are not consistent with your other switches:
>> 1) shutdown your trunk ports
>> 2) then delete your vlan.dat file & startup configuration
>> 3) and then set a VTP domain to be unique (or change to transparent mode)
>> 4) reload
>>
>> If you shutdown the ports after deleting the vlan.dat, there is a
>> posibility that VTP will relearn the VLAN information whilst you are
>> disabling the ports.
>>
>> Making VTP changes (e.g. settting a unique domain) after deleting the
>> vlan.dat file ensures that this file still exists at bootup. If you delete
>> the vlan.dat and the startup configuration & then immediately reload, all
>> VTP and config settings will be at their defaults when the switch comes back
>> up - so it will be in VTP server mode and will re learn VLANs using VTP.
>>
>> Setting a switch to transparent mode adds configuration lines to both the
>> running config and the vlan.dat file. The switch will stay in transparent
>> mode if you delete any one of these and reload, but not if you delete both
>> and reload.
>>
>> Paul.
>>
>>
>>>
>>> On Tue, Dec 23, 2008 at 3:57 PM, Syed Ali <testcricket@gmail.com> wrote:
>>>
>>> > Hello Experts,
>>> > Sorry for the late response due to the difference
>>> in
>>> > time zones. Here is what is happening in all 3550 I have
>>> >
>>> > All Switches are in the same VTP domain and are in server mode
>>> >
>>> > The vlan.dat was deleted ONLY by shutting the trunk ports of the other
>>> 3
>>> > switches
>>> >
>>> > BUT, the vlan.dat kept coming back after I did the followings:
>>> >
>>> > 1. DELETED THE VLAN.DAT
>>> > 2. SHUTDOWN ALL THE PORTS ON LOCAL SWITCH
>>> > 3. WR MEM
>>> > 4. WR ERASE
>>> > 5. COPY START RUN
>>> > 6. RELOAD
>>> >
>>> > And yet the vlan.dat showed up again.
>>> > INTERESTING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>>> >
>>> > Again thanks to all of you for your interest and support.
>>> >
>>> > thanks
>>> > Syed
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Tue, Dec 23, 2008 at 5:15 AM, CCIE Gmail <majonestx@gmail.com>
>>> wrote:
>>> >
>>> > > Oh ok. That makes sense then.
>>> > >
>>> > > - Michael
>>> > > Cry in the lab, laugh in the Data center.
>>> > >
>>> > > Sent from my IPhone.
>>> > >
>>> > > On Dec 22, 2008, at 7:38 PM, "Jason Madsen" <madsen.jason@gmail.com>
>>> > > wrote:
>>> > >
>>> > > Yep, he specifically stated that he shut them down, did a "wr
>>> erase",
>>> > and
>>> > > then a reload I believe.
>>> > >
>>> > > Jason
>>> > >
>>> > > On Mon, Dec 22, 2008 at 6:23 PM, Jonathan Greenwood II <
>>> > gwood83@gmail.com>wrote:
>>> > >
>>> > >> I agree the ports will come back in a up state. Now if you shutdown
>>> the
>>> > >> ports then save the configuration the ports should come back in an
>>> > >> administrative down state. I doubt he saved the configuration once
>>> he
>>> > shut
>>> > >> the ports down before he rebooted..
>>> > >>
>>> > >> Jonathan
>>> > >>
>>> > >> On Mon, Dec 22, 2008 at 4:25 PM, Jason Madsen <
>>> madsen.jason@gmail.com
>>> > >wrote:
>>> > >>
>>> > >>> Try shutting down all of your switch interfaces, doing a wr er
>>> reload,
>>> > >>> and
>>> > >>> see what you come up with. I'm quite sure you'll find the
>>> interfaces
>>> > are
>>> > >>> no
>>> > >>> longer in the shutdown state ;-) They were coming back up,
>>> forming a
>>> > >>> trunk
>>> > >>> to another switch, and re-learning the vlans.
>>> > >>>
>>> > >>> Jason
>>> > >>>
>>> > >>> On Mon, Dec 22, 2008 at 5:05 PM, CCIE Gmail <majonestx@gmail.com>
>>> > wrote:
>>> > >>>
>>> > >>> > But previously he shut down all the ports and it didn't work ? By
>>> > that
>>> > >>> > theory it shouldn't have recived the vlan.dat. File because no
>>> trunks
>>> > >>> would
>>> > >>> > be able to form due to all his ports being disabled. Am I missing
>>> > >>> something
>>> > >>> > here???
>>> > >>> >
>>> > >>> > - Michael
>>> > >>> >
>>> > >>> > Cry in the lab, laugh in the Data center.
>>> > >>> >
>>> > >>> > Sent from my IPhone.
>>> > >>> >
>>> > >>> >
>>> > >>> > On Dec 22, 2008, at 5:44 PM, "Narbik Kocharians" <
>>> narbikk@gmail.com>
>>> > >>> > wrote:
>>> > >>> >
>>> > >>> > When the switch comes back up, it establishes a trunk and gets
>>> all
>>> > the
>>> > >>> >> VLAN
>>> > >>> >> info from the other switch, that's why this worked, once you
>>> > shutdown
>>> > >>> the
>>> > >>> >> other ports, the local switch was not able to establish a trunk.
>>> > >>> >>
>>> > >>> >> On Mon, Dec 22, 2008 at 3:21 PM, Jonny English <
>>> > >>> redkidneybeans@gmail.com
>>> > >>> >> >wrote:
>>> > >>> >>
>>> > >>> >> Shut all your ports down on all your switches.
>>> > >>> >>> wr er
>>> > >>> >>> reload
>>> > >>> >>>
>>> > >>> >>> *shut all your ports down on all your switches*
>>> > >>> >>>
>>> > >>> >>> del vlan.dat
>>> > >>> >>> reload
>>> > >>> >>>
>>> > >>> >>> on all switches
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>> On Tue, Dec 23, 2008 at 12:05 PM, Syed Ali <
>>> testcricket@gmail.com>
>>> > >>> >>> wrote:
>>> > >>> >>>
>>> > >>> >>> Hi Mark / Jonny,
>>> > >>> >>>> I did shut down all the ports, saved
>>> the
>>> > >>> config
>>> > >>> >>>> and deleted the vlan.dat but it shows up again after a reload.
>>> In
>>> > >>> fact I
>>> > >>> >>>>
>>> > >>> >>> am
>>> > >>> >>>
>>> > >>> >>>> trying to remove the older vlan info as well as remove the
>>> entire
>>> > >>> >>>> config.
>>> > >>> >>>>
>>> > >>> >>> to
>>> > >>> >>>
>>> > >>> >>>> move to the next lab.
>>> > >>> >>>>
>>> > >>> >>>>
>>> > >>> >>>>
>>> > >>> >>>>
>>> > >>> >>>>
>>> > >>> >>>> On Tue, Dec 23, 2008 at 1:58 AM, Jonny English <
>>> > >>> >>>> redkidneybeans@gmail.com
>>> > >>> >>>> wrote:
>>> > >>> >>>>
>>> > >>> >>>> shut all your ports on your switch.
>>> > >>> >>>>> do a:
>>> > >>> >>>>> del vlan.dat
>>> > >>> >>>>> reload
>>> > >>> >>>>>
>>> > >>> >>>>>
>>> > >>> >>>>> On Tue, Dec 23, 2008 at 11:54 AM, Syed Ali <
>>> > testcricket@gmail.com>
>>> > >>> >>>>>
>>> > >>> >>>> wrote:
>>> > >>> >>>
>>> > >>> >>>>
>>> > >>> >>>>> Hi guys,
>>> > >>> >>>>>> I am deleting as following on my 3550 :
>>> > >>> >>>>>>
>>> > >>> >>>>>> Switch#del vlan.dat
>>> > >>> >>>>>> Delete filename [vlan.dat]?
>>> > >>> >>>>>> Delete flash:vlan.dat? [confirm]
>>> > >>> >>>>>> Switch#
>>> > >>> >>>>>> When I say "pops back" I mean the output of command "dir"
>>> shows
>>> > >>> the
>>> > >>> >>>>>> vlan.dat
>>> > >>> >>>>>> file and my old vlan are shown.
>>> > >>> >>>>>>
>>> > >>> >>>>>>
>>> > >>> >>>>>>
>>> > >>> >>>>>> On Tue, Dec 23, 2008 at 1:41 AM, sidd ant <
>>> > >>> aspiretobeccie@gmail.com>
>>> > >>> >>>>>> wrote:
>>> > >>> >>>>>>
>>> > >>> >>>>>> what command have you used to try and delete the file Syed?
>>> > >>> >>>>>>>
>>> > >>> >>>>>>>
>>> > >>> >>>>>>> On Tue, Dec 23, 2008 at 9:37 AM, Syed Ali <
>>> > >>> testcricket@gmail.com>
>>> > >>> >>>>>>>
>>> > >>> >>>>>> wrote:
>>> > >>> >>>>>>
>>> > >>> >>>>>>>
>>> > >>> >>>>>>> Hi all,
>>> > >>> >>>>>>>> I have tried deleting vlan database and then write
>>> erase
>>> > >>> the
>>> > >>> >>>>>>>> config
>>> > >>> >>>>>>>> file. But after the reload the vlan.dat pops back up and I
>>> see
>>> > >>> the
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>> old
>>> > >>> >>>
>>> > >>> >>>> vlans
>>> > >>> >>>>>>>> and vtp config. Can someone help as how to delete the old
>>> vlan
>>> > >>> and
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>> vtp
>>> > >>> >>>
>>> > >>> >>>> info.
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>>> thanks
>>> > >>> >>>>>>>> Syed
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>>> Blogs and organic groups at http://www.ccie.net
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>>>
>>> > >>>
>>> _______________________________________________________________________
>>> > >>> >>>>>>
>>> > >>> >>>>>
>>> > >>> >
>>> > >>> > Subscription information may be found at:
>>> > >>> >>>>>>>> http://www.groupstudy.com/list/CCIELab.html
>>> > >>> >>>>>>>>
>>> > >>> >>>>>>>
>>> > >>> >>>>>>
>>> > >>> >>>>>> Blogs and organic groups at http://www.ccie.net
>>> > >>> >>>>>>
>>> > >>> >>>>>>
>>> > >>> >>>>>>
>>> > >>>
>>> _______________________________________________________________________
>>> > >>> >>>>>>
>>> > >>> >>>>>
>>> > >>> >
>>> > >>> > Subscription information may be found at:
>>> > >>> >>>>>> http://www.groupstudy.com/list/CCIELab.html
>>> > >>> >>>>>>
>>> > >>> >>>>>
>>> > >>> >>>
>>> > >>> >>> Blogs and organic groups at http://www.ccie.net
>>> > >>> >>>
>>> > >>> >>>
>>> > >>>
>>> _______________________________________________________________________
>>> > >>> >>>
>>> > >>> >>
>>> > >>> >
>>> > >>> > Subscription information may be found at:
>>> > >>> >>> http://www.groupstudy.com/list/CCIELab.html
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>>
>>> > >>> >>
>>> > >>> >> --
>>> > >>> >> Narbik Kocharians
>>> > >>> >> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>>> > >>> >> www.MicronicsTraining.com <http://www.micronicstraining.com/> <
>>> http://www.micronicstraining.com/><
>>> > http://www.micronicstraining.com/>
>>> > >>> >> www.Net-Workbooks.com <http://www.net-workbooks.com/> <
>>> http://www.net-workbooks.com/><
>>> > http://www.net-workbooks.com/>
>>> > >>> >> Sr. Technical Instructor
>>> > >>> >>
>>> > >>> >>
>>> > >>> >> Blogs and organic groups at http://www.ccie.net
>>> > >>> >>
>>> > >>> >>
>>> > >>>
>>> _______________________________________________________________________
>>> > >>> >>
>>> > >>> >
>>> > >>> >
>>> > >>> > Subscription information may be found at:
>>> > >>> >> http://www.groupstudy.com/list/CCIELab.html
>>> > >>> >>
>>> > >>> >
>>> > >>> >
>>> > >>> > Blogs and organic groups at http://www.ccie.net
>>> > >>> >
>>> > >>> >
>>> > _______________________________________________________________________
>>> > >>> > Subscription information may be found at:
>>> > >>> > http://www.groupstudy.com/list/CCIELab.html
>>> > >>>
>>> > >>>
>>> > >>> Blogs and organic groups at http://www.ccie.net
>>> > >>>
>>> > >>>
>>> _______________________________________________________________________
>>> > >>> Subscription information may be found at:
>>> > >>> http://www.groupstudy.com/list/CCIELab.html
>>> >
>>> >
>>> > Blogs and organic groups at http://www.ccie.net
>>> >
>>> > _______________________________________________________________________
>>> > Subscription information may be found at:
>>> > http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>> 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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