From: Joe Deleonardo (JoeDeleonardo@cox.net)
Date: Wed Aug 11 2004 - 23:10:34 GMT-3
Oh, ok, now I see what he was asking. I thought the question was if rspan
had to be configured on more then one switch to get it to work. I thought
maybe he didn't really understand the concept of rspan.
Spending too much time studying, brain not working. :)
Thanks!
Joe
-----Original Message-----
From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
Sent: Wednesday, August 11, 2004 7:01 PM
To: Joe Deleonardo; ccie2be; ccielab@groupstudy.com
Subject: RE: RSPAN GOTCHA
Hi Joe,
Yes you still have to configure the monitor session command on
both ends. The original question was whether or not the "remote-span"
keyword is needed under the VLAN at the source and the destination. The
answer is no, because it is propagated via VTP. Make sense?
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
24/7 Support: http://forum.internetworkexpert.com
Live Chat: http://www.internetworkexpert.com/chat/
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Joe Deleonardo
> Sent: Wednesday, August 11, 2004 8:51 PM
> To: 'Brian McGahan'; 'ccie2be'; ccielab@groupstudy.com
> Subject: RE: RSPAN GOTCHA
>
> Brian,
>
> I don't understand. How are you going to monitor f0/3 on switch A and
send
> to f0/3 on switch B. If you only do the configuration on one switch.
> Wouldn't that just be considered SPAN?
>
> This is what I'm thinking a config would look like... I apologize if
my
> syntax is off I'm doing it from memory:
>
> SwA#
> Vlan 100
> Remote-span
> !
> monitor session 1 source int f0/3
> monitor session 1 source int f0/2
> monitor session 1 destination remote vlan 100 reflect f0/24
> !
> SwB#
> Monitor session 1 source remote vlan 100
> Monitor session 1 destination interface f0/3
>
> I mean yes, there's no question you can configure only one switch. But
if
> you want a source to get the data you have to configure the switch.
>
> I guess you can configure this all on one switch - but why go through
all
> this extra effort if you can just use span.
>
> Thanks,
>
> Joe
>
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Brian McGahan
> Sent: Wednesday, August 11, 2004 6:18 PM
> To: Joe Deleonardo; ccie2be; ccielab@groupstudy.com
> Subject: RE: RSPAN GOTCHA
>
> RSPAN is an attribute that is propagated via VTP. Therefore
> assuming you are running VTP you only need to define it on a VTP
server
> in the network.
>
> BTW Tim, it's not a "gotcha", but instead just a requirement of
> the configuration ;)
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Joe Deleonardo
> > Sent: Wednesday, August 11, 2004 8:00 PM
> > To: 'ccie2be'; ccielab@groupstudy.com
> > Subject: RE: RSPAN GOTCHA
> >
> > In the real would you absoutley have to configure RSPAN on both
> switches
> > to
> > get it to work.
> >
> > On the lab read the question and ask the proctor. There was a
problem
> on
> > one
> > of my labs that in the real would you would have to configure both
> routers
> > to get the feature to work properly. No question. The way it was
> worded
> > made
> > me question the proctor. He said it only required the configuration
> put on
> > one router.
> >
> > The lab is not the real world. As Scott once said to me. It's a
> difficult
> > thing to test true expert knowledge of a topic with in the limited
> > confines
> > of the lab, by doing everything in a real world manner.
> >
> > HTH
> >
> > Joe
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > ccie2be
> > Sent: Wednesday, August 11, 2004 5:09 PM
> > To: jongsoo.kim@intelsat.com; ccielab@groupstudy.com
> > Subject: Re: RSPAN GOTCHA
> >
> > Yes, although this isn't documented in the chapter on span and
rspan.
> > This
> > is documented in the chapter on VLAN's.
> >
> > I think the remote-span command has to be used on both switches but
> I'm
> > not
> > 100% positive on this point.
> >
> > If the command should only be enabled on one switch, off-hand I
> couldn't
> > tell you which one - the source or destination switch.
> >
> > HTH, Tim
> > ----- Original Message -----
> > From: <jongsoo.kim@intelsat.com>
> > To: <ccielab@groupstudy.com>
> > Sent: Wednesday, August 11, 2004 7:40 PM
> > Subject: RSPAN
> >
> >
> > > See config and let's say all other basic config is done.
> > >
> > > SW1
> > > Sw1(config)# monitor session 1 source vlan 120 rx
> > > Sw1(config)# monitor session 1 destination remote vlan 100
> reflector-
> > port
> > Fa0/23
> > > SW2
> > > Sw2(config)# monitor session 1 source remote vlan 100
> > > Sw2(config)# monitor session 1 destination interface Fa0/21
> > >
> > > To make the above config work, do I need add the below?( I think
so
> but
> > my
> > solution doesn't show as it is a part of vlan database config)
> > > Sw1(config)# vlan 100
> > > Sw1(config-vlan)# remote-span
> > > Sw2(config)# vlan 100
> > > Sw2(config-vlan)# remote-span
> > >
> > >
>
This archive was generated by hypermail 2.1.4 : Fri Sep 03 2004 - 07:02:42 GMT-3