From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Oct 10 2003 - 01:25:00 GMT-3
Dt,
The 3550 will automatically learn the VTP domain from existing
switches and install VLANs in their updates. Configure VTP (without a
password) on one switch along with some vlans, then erase the vlan
database of an adjacent switch, erase it's config, and reload to see
what happens.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 708-362-1418 (Outside the US and Canada)
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> ccie2be
> Sent: Thursday, October 09, 2003 8:44 PM
> To: Jonathan V Hays; Group Study; Brian McGahan
> Subject: Re: 3550 - vtp domain name
>
> Hi guys,
>
> Is it possible for a Cat to relearn the vlan's via vtp after the
vlan.dat
> file is deleted? I ask because I thought that before vtp can
propagate
> vlan
> info, both switches have to share the same vtp domain name and if the
> vlan.dat file has been deleted, then wouldn't the vtp domain name also
be
> deleted? Isn't that the way it works?
>
> dt
> ----- Original Message -----
> From: "Brian McGahan" <bmcgahan@internetworkexpert.com>
> To: "'Jonathan V Hays'" <jhays@jtan.com>; "'ccie2be'"
> <ccie2be@nyc.rr.com>;
> "'Group Study'" <ccielab@groupstudy.com>; "'Brian Dennis'"
> <bdennis@internetworkexpert.com>
> Sent: Thursday, October 09, 2003 8:24 PM
> Subject: RE: 3550 - vtp domain name
>
>
> > Jonathan,
> >
> > The vlan database is a file stored in flash. The dir output I
> > showed illustrates that the file was removed from the flash. Do you
> > have multiple switches connected? It could be that you are deleting
the
> > database on one switch, reloading it, and the switch is then
relearning
> > about the VLANs through VTP. If you have multiple switches
connected
> > shut the trunk links down and try it out. If you're still having
issues
> > with this, it may possibly be version dependent. What version are
you
> > running?
> >
> > Here is a more detailed output:
> >
> > Switch#dir
> > Directory of flash:/
> >
> > 2 -rwx 5 Mar 01 1993 20:52:00 private-config.text
> > 4 drwx 64 Mar 01 1993 00:05:06
> > c3550-i5k2l2q3-mz.121-11.EA1a
> > 5 -rwx 348 Mar 04 1993 02:56:53 system_env_vars
> > 25 drwx 64 Mar 01 1993 00:02:56 backup
> > 9 drwx 320 Mar 01 1993 00:56:17
> > c3550-i9q3l2-mz.121-11.EA1
> > 28 -rwx 0 Mar 04 1993 02:56:53 env_vars
> >
> > 15998976 bytes total (7408640 bytes free)
> > Switch#vlan dat
> > Switch(vlan)#vlan 100
> > VLAN 100 added:
> > Name: VLAN0100
> > Switch(vlan)#exit
> > APPLY completed.
> > Exiting....
> > Switch#dir
> > Directory of flash:/
> >
> > 2 -rwx 5 Mar 01 1993 20:52:00 private-config.text
> > 3 -rwx 616 Mar 01 1993 01:40:13 vlan.dat
> > 4 drwx 64 Mar 01 1993 00:05:06
> > c3550-i5k2l2q3-mz.121-11.EA1a
> > 5 -rwx 348 Mar 04 1993 02:56:53 system_env_vars
> > 25 drwx 64 Mar 01 1993 00:02:56 backup
> > 9 drwx 320 Mar 01 1993 00:56:17
> > c3550-i9q3l2-mz.121-11.EA1
> > 28 -rwx 0 Mar 04 1993 02:56:53 env_vars
> >
> > 15998976 bytes total (7407616 bytes free)
> > Switch#sh vlan
> >
> > VLAN Name Status Ports
> > ---- -------------------------------- ---------
> > -------------------------------
> > 1 default active Fa0/1, Fa0/2, Fa0/3,
> > Fa0/4
> > Fa0/5, Fa0/6, Fa0/7,
> > Fa0/8
> > Fa0/9, Fa0/10,
Fa0/11,
> > Fa0/12
> > Fa0/16, Fa0/17,
Fa0/18,
> > Fa0/19
> > Fa0/20, Fa0/21,
Fa0/22,
> > Fa0/23
> > Fa0/24, Gi0/1, Gi0/2
> > 100 VLAN0100 active
> > 1002 fddi-default active
> > 1003 token-ring-default active
> > 1004 fddinet-default active
> > 1005 trnet-default active
> >
> > VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode
Trans1
> > Trans2
> > ---- ----- ---------- ----- ------ ------ -------- ---- --------
------
> > ------
> > 1 enet 100001 1500 - - - - - 0
> > 0
> > 100 enet 100100 1500 - - - - - 0
> > 0
> > 1002 fddi 101002 1500 - - - - - 0
> > 0
> > 1003 tr 101003 1500 - - - - - 0
> > 0
> > 1004 fdnet 101004 1500 - - - ieee - 0
> > 0
> > 1005 trnet 101005 1500 - - - ibm - 0
> > 0
> >
> >
> > Primary Secondary Type Ports
> > ------- --------- -----------------
> > ------------------------------------------
> >
> > Switch#del vlan.dat
> > Delete filename [vlan.dat]?
> > Delete flash:vlan.dat? [confirm]y
> > Switch#dir
> > Directory of flash:/
> >
> > 2 -rwx 5 Mar 01 1993 20:52:00 private-config.text
> > 4 drwx 64 Mar 01 1993 00:05:06
> > c3550-i5k2l2q3-mz.121-11.EA1a
> > 5 -rwx 348 Mar 04 1993 02:56:53 system_env_vars
> > 25 drwx 64 Mar 01 1993 00:02:56 backup
> > 9 drwx 320 Mar 01 1993 00:56:17
> > c3550-i9q3l2-mz.121-11.EA1
> > 28 -rwx 0 Mar 04 1993 02:56:53 env_vars
> >
> > 15998976 bytes total (7408640 bytes free)
> > Switch#rel
> > Proceed with reload? [confirm]
> >
> > <snip>
> > Press RETURN to get started!
> >
> >
> > Switch>
> > 00:01:16: %LINK-5-CHANGED: Interface Vlan1, changed state to
> > administratively down
> > 00:01:17: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1,
changed
> > state to down
> > Switch>en
> > Switch#dir
> > Directory of flash:/
> >
> > 2 -rwx 5 Mar 01 1993 20:52:00 private-config.text
> > 4 drwx 64 Mar 01 1993 00:05:06
> > c3550-i5k2l2q3-mz.121-11.EA1a
> > 5 -rwx 348 Mar 04 1993 02:56:53 system_env_vars
> > 25 drwx 64 Mar 01 1993 00:02:56 backup
> > 9 drwx 320 Mar 01 1993 00:56:17
> > c3550-i9q3l2-mz.121-11.EA1
> > 28 -rwx 0 Mar 04 1993 02:56:53 env_vars
> >
> > 15998976 bytes total (7408640 bytes free)
> > Switch#sh vlan
> >
> > VLAN Name Status Ports
> > ---- -------------------------------- ---------
> > -------------------------------
> > 1 default active Fa0/1, Fa0/2, Fa0/3,
> > Fa0/4
> > Fa0/5, Fa0/6, Fa0/7,
> > Fa0/8
> > Fa0/9, Fa0/10,
Fa0/11,
> > Fa0/12
> > Fa0/13, Fa0/14,
Fa0/15,
> > Fa0/16
> > Fa0/17, Fa0/18,
Fa0/19,
> > Fa0/20
> > Fa0/21, Fa0/22,
Fa0/23,
> > Fa0/24
> > Gi0/1, Gi0/2
> > 1002 fddi-default active
> > 1003 token-ring-default active
> > 1004 fddinet-default active
> > 1005 trnet-default active
> >
> > VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode
Trans1
> > Trans2
> > ---- ----- ---------- ----- ------ ------ -------- ---- --------
------
> > ------
> > 1 enet 100001 1500 - - - - - 0
> > 0
> > 1002 fddi 101002 1500 - - - - - 0
> > 0
> > 1003 tr 101003 1500 - - - - - 0
> > 0
> > 1004 fdnet 101004 1500 - - - ieee - 0
> > 0
> > 1005 trnet 101005 1500 - - - ibm - 0
> > 0
> >
> >
> >
> > Primary Secondary Type Ports
> > ------- --------- -----------------
> > ------------------------------------------
> >
> > Switch#
> >
> >
> >
> > Brian McGahan, CCIE #8593
> > bmcgahan@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987
> > Direct: 708-362-1418 (Outside the US and Canada)
> >
> >
> > > -----Original Message-----
> > > From: Jonathan V Hays [mailto:jhays@jtan.com]
> > > Sent: Thursday, October 09, 2003 7:06 PM
> > > To: 'Brian McGahan'; 'ccie2be'; 'Group Study'; 'Brian Dennis'
> > > Subject: RE: 3550 - vtp domain name
> > >
> > > Brian,
> > >
> > > With all due respect, the output you have included is not adequate
> > > proof. Show us the output after you have rebooted and see if your
> > VLANs
> > > are still there.
> > >
> > > My point is that the Catalyst IOS does not complain, at least for
the
> > > version I am running. Evidently this is true for the IOS version
that
> > > ccie2be is running also. It simply does not actually delete
vlan.dat.
> > I
> > > know for a fact that typing 'y' will result in the IOS *retaining*
> > > vlan.dat on the 2 switches that I work with because I do it
> > accidentally
> > > all the time and have to redo it and reboot again.
> > >
> > > It's possible this behavior may be version dependent.
> > >
> > > Jonathan
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> > Of
> > > Brian McGahan
> > > Sent: Thursday, October 09, 2003 7:36 PM
> > > To: 'Jonathan V Hays'; 'ccie2be'; 'Group Study'; 'Brian Dennis'
> > > Subject: RE: 3550 - vtp domain name
> > >
> > >
> > > Works fine for me:
> > >
> > > Switch#dir vlan.dat
> > > Directory of flash:/vlan.dat
> > >
> > > 2 -rwx 616 Mar 01 1993 01:01:28 vlan.dat
> > >
> > > 15998976 bytes total (7407616 bytes free)
> > > Switch#del vlan.dat
> > > Delete filename [vlan.dat]?
> > > Delete flash:vlan.dat? [confirm]y
> > > Switch#dir vlan.dat
> > > %Error opening flash:/vlan.dat (No such file or directory)
> > > Switch#
> > >
> > > HTH,
> > >
> > > Brian McGahan, CCIE #8593
> > > bmcgahan@internetworkexpert.com
> > >
> > > Internetwork Expert, Inc.
> > > http://www.InternetworkExpert.com
> > > Toll Free: 877-224-8987
> > > Direct: 708-362-1418 (Outside the US and Canada)
> > >
> > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> > > Of
> > > > Jonathan V Hays
> > > > Sent: Thursday, October 09, 2003 3:24 PM
> > > > To: 'ccie2be'; 'Group Study'; 'Brian Dennis'
> > > > Subject: RE: 3550 - vtp domain name
> > > >
> > > > You typed 'y' to confirm. The Catalyst 3550 does not like that
> > > response
> > > > and vlan.dat will not be deleted as a consequence.
> > > >
> > > > You must hit only the <Enter> key to confirm. The correct
sequence
> > is:
> > > >
> > > > Rack1SW2#delete vlan.dat
> > > > Delete filename [vlan.dat]? <Enter>
> > > > Delete flash:vlan.dat? [confirm] <Enter>
> > > >
> > > >
> > > > HTH,
> > > >
> > > > Jonathan
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> > > Of
> > > > ccie2be
> > > > Sent: Thursday, October 09, 2003 3:20 PM
> > > > To: Group Study; Brian Dennis
> > > > Subject: Re: 3550 - vtp domain name
> > > >
> > > >
> > > > Hi Brian,
> > > >
> > > > Yesterday, while renting some rack time, I tried to delete the
> > > vlan.dat
> > > > file
> > > > on a 3550. It didn't work but I don't think I entered a "?"
after
> > the
> > > > 1st
> > > > switch respose and I'm pretty sure I just hit the "return" key
when
> > it
> > > > ask
> > > > me to confirm. Actually, I think I just hit "return" both
times.
> > Was
> > > > that
> > > > why it didn't work?
> > > >
> > > > Thanks, dt
> > > >
> > > > ----- Original Message -----
> > > > From: "Brian Dennis" <bdennis@internetworkexpert.com>
> > > > To: "'ccie2be'" <ccie2be@nyc.rr.com>; "'Group Study'"
> > > > <ccielab@groupstudy.com>
> > > > Sent: Friday, October 03, 2003 2:46 PM
> > > > Subject: RE: 3550 - vtp domain name
> > > >
> > > >
> > > > > Delete the vlan.dat file from flash before reloading.
> > > > >
> > > > > Rack1SW2#delete vlan.dat
> > > > > Delete filename [vlan.dat]?
> > > > > Delete flash:vlan.dat? [confirm]y
> > > > >
> > > > > Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> > > > > bdennis@internetworkexpert.com
> > > > > Toll Free: 877-224-8987
> > > > > Direct: 775-745-6404 (Outside the US and Canada)
> > > > > Internetwork Expert, Inc.
> > > > > http://www.InternetworkExpert.com
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > Behalf
> > > > Of
> > > > > ccie2be
> > > > > Sent: Friday, October 03, 2003 11:42 AM
> > > > > To: Group Study
> > > > > Subject: 3550 - vtp domain name
> > > > >
> > > > > Hi,
> > > > >
> > > > > I tried to get rid of the vtp domain name but failed to do so.
I
> > > > wanted
> > > > > to
> > > > > return a 3550 to it's of the box condition. So, I did a write
> > erase
> > > > > then a
> > > > > reload, but the old vtp domain name was still there.
> > > > >
> > > > > How do you get rid of the vtp domain name?
> > > > >
> > > > > Thanks, dt
> > > > >
> > > > > ***Get your CCIE and a FREE vacation: Shop.GroupStudy.com***
> > > > >
> > > >
> > >
> >
This archive was generated by hypermail 2.1.4 : Mon Nov 24 2003 - 07:52:59 GMT-3