From: boby2kusa@hotmail.com
Date: Thu Jul 03 2003 - 14:51:06 GMT-3
Management vlan is any vlan that you want it to be. Cisco's managemtn vlan
term simply means that you do not put any hosts that will pass data traffic.
This to so that if there is a problem in the network the management vlan is
not affected, at least in theory coz most of the network problem is caused
by data traffic, so to speak. So, in summary, management vlan is any vlan
that does not have any data traffic.
In your case if vlan 65 is mgmt vlan thenb you better put the users in other
vlan.
I hope that is not confusing.
----- Original Message -----
From: "SHARMA,MOHIT (HP-Germany,ex1)" <mohit.sharma@hp.com>
To: "'John Matijevic'" <matijevi@bellsouth.net>; <ccielab@groupstudy.com>
Sent: Thursday, July 03, 2003 9:09 AM
Subject: RE: Switchin Basics
> Hi John,
>
> thanx for the followup, but what would then be exactly "the management
> vlan"", If vlan 1 is shutdown and as Jonathan said there could be a number
> of SVI's. How would the switch decide, which one to consider the
management
> vlan?Or is it like the default vlan the default management vlan is always
> "1" ??
>
>
>
> -----Original Message-----
> From: John Matijevic [mailto:matijevi@bellsouth.net]
> Sent: Thursday, July 03, 2003 5:58 PM
> To: Jonathan V Hays; 'SHARMA,MOHIT (HP-Germany,ex1)';
>
> Subject: Re: Switchin Basics
>
>
> Hello Team,
> I politely disagree with Jonathan in the following:
> > However, on the Catalyst 3550 you can have multiple "management" VLANs.
>
> my answer is:
> Only one management VLAN can be administratively active at a time.
>
> also,
> You cant change the default vlan 1.
>
> As a followup note:
> Management interfaces and vlans is documented in the 3550 admin guide.
The
> management interface communicates with the switch ip address. The ip
address
> is associated with the management vlan. You can only have one management
> vlan at a time. The management vlan is the vlan used to manage the switch,
> so when you add a vlan and assign an ip address, that vlan communicates
with
> the management vlan.
> Hopefully this helps clarify,
> Sincerely,
> Matijevic
>
> ----- Original Message -----
> From: "Jonathan V Hays" <jhays@jtan.com>
> To: "'SHARMA,MOHIT (HP-Germany,ex1)'" <mohit.sharma@hp.com>;
> <ccielab@groupstudy.com>
> Sent: Thursday, July 03, 2003 10:17 AM
> Subject: RE: Switchin Basics
>
>
> > See below.
> >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > > Behalf Of SHARMA,MOHIT (HP-Germany,ex1)
> > > Sent: Thursday, July 03, 2003 7:22 AM
> > > To: 'ccielab@groupstudy.com'
> > > Subject: RE: Switchin Basics
> > >
> > >
> > > Hi all,
> > >
> > > I know this may sound like a really stupid question from a
> > > guy preparing for
> > > the esteemed exam, but could someone please take out some
> > > time to enmlighten
> > > me. I really need to get this basics clear.
> > >
> > > Thanks for your understanding and cooperation.
> > >
> > > Smiles,
> > >
> > > Mohit.
> > > -----Original Message-----
> > > From: SHARMA,MOHIT (HP-Germany,ex1) [mailto:mohit.sharma@hp.com]
> > > Sent: Thursday, July 03, 2003 12:54 AM
> > > To: 'ccielab@groupstudy.com'
> > > Subject: Switchin Basics
> > >
> > >
> > > Hi All,
> > >
> > > This may sound like one of the basic questions for switching,
> > > however I just
> > > tried these on my newly acquired 3550's and am really confused.
> > >
> > > 1.> If asked to change the default VLAN, how does it work? I
> > > have tried
> > > using the default vlan <x> command, but when I do sh vlan it
> > > always gives me
> > > the default vlan as 1. First I thought that after giving this command
> > > changing the names would do the trick but it still allocates
> > > the unused
> > > ports to VLAN 1 :(
> > >
> >
> > ****
> > The default VLAN on an unconfigured Cisco switch is VLAN 1. I don't
> > think this can be changed. For an unconfigured switch, it simply means
> > that by default all ports are a member of VLAN 1. I suppose the
> > programmers could have alternatively assigned all ports to no VLAN at
> > all, which would have forced the sysadmin to assign a VLAN to a port
> > before using the switch. With a default of VLAN 1 on all ports, you can
> > turn on the switch and immediately plug in ethernet cables and start
> > using the switch.
> >
> > I think your lab scenario is really asking you to assign ports to
> > different VLANs. Or maybe to assign a new management VLAN by creating a
> > new switched virtual interface (SVI). See below.
> > ****
> >
> >
> > > 2.> What does management interface mean. If I have a number of VLAN
> > > interfaces with IP address configured, how does the switch
> > > decide, which one
> > > is the management interface???IS it the default VLAN again at play???
> >
> >
> > ****
> > Older IOS-type switches (e.g., 2900/3550XL, 2950, etc.) only allowed one
> > "management" VLAN. For example, to shut down VLAN 1 as the management
> > VLAN on a 2900/3500 XL switch you used the "management" command.
> >
> > However, on the Catalyst 3550 you can have multiple "management" VLANs.
> > (Cisco does not use the term "management" very often in the 3550
> > configuration guide.) To do this, you just create anther SVI with the
> > "int vlan XXX" command. To disable VLAN 1 as a "management" VLAN:
> >
> > int vlan 1
> > shutdown
> >
> > http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12113ea1/3550s
> > cg/swint.htm#1026951
> >
> > <quote>
> > By default, an SVI is created for the default VLAN (VLAN 1) to permit
> > remote switch administration. Additional SVIs must be explicitly
> > configured. In Layer 2 mode, SVIs provide IP host connectivity only to
> > the system; in Layer 3 mode, you can configure routing across SVIs.
> > </quote>
> >
> > HTH
> >
> > Jonathan
> >
> > ****
> >
> >
> > >
> > > Thanks as always for showing me the light :)
> > >
> > > Smiles,
> > >
> > > Mohit.
> > >
> > >
> > > ______________________________________________________________
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