From: Dennis J. Hartmann (dennisjhartmann@hotmail.com)
Date: Thu Nov 10 2005 - 10:15:36 GMT-3
Am I correct in saying that the reflector-port is the
target/destination interface in which the sniffer/network monitoring device
is attached? I understand that this is occuring over a VLAN and the
destination can be multiple hops away, but it's unclear to me whether the
reflector-port is the final destination or the trunk uplink. I "believe"
it's the "final" destination, but I thought I would ask.
-Dennis Hartmann
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Chris Cole
Sent: Wednesday, November 09, 2005 1:14 PM
To: milo_az@yahoo.com; Mike Flanagan; Scott Morris
Cc: Cisco certification
Subject: RE: Trouble configuring RSPAN
The Catalyst 2970, 3560, and 3750 switches do not require configuration of a
REFLECTOR port when configuring an RSPAN session.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
milo_az@yahoo.com
Sent: Tuesday, November 08, 2005 3:51 PM
To: Mike Flanagan; Scott Morris
Cc: 'Cisco certification'
Subject: Re: Trouble configuring RSPAN
Are you sure that's a 3550. I haven't seen one with a g1/0/10 interface.
Maybe a 3750 that doesn't require a reflector port?
Mike
Mike Flanagan <mikenoc@mindspring.com> wrote:I am running 12.1(19)EA1d maybe
its an IOS thing ?
On Nov 8, 2005, at 10:03 AM, Scott Morris wrote:
> Hmmmm...
> emanon-3550-1(config)#monitor session 1 destination remote vlan 101 ?
> reflector-port Remote SPAN reflector port
>
> What version are you running? I'm running 12.1(20), and that's still
> relatively old.
>
> Scott
>
> _____
>
> From: Mike Flanagan [mailto:mikenoc@mindspring.com]
> Sent: Tuesday, November 08, 2005 10:00 AM
> To: swm@emanon.com
> Cc: 'Cisco certification'
> Subject: Re: Trouble configuring RSPAN
>
>
> I figured the command was needed but I just do not see the option to
> specify the reflector port.
>
> SW1(config)#monitor session 1 destination ?
> interface SPAN destination interface
> remote SPAN destination Remote
>
> SW1(config)#monitor session 1 destination SW1(config)#monitor session
> 1 destination ?
> interface SPAN destination interface
> remote SPAN destination Remote
>
> SW1(config)#monitor session 1 destination SW1(config)#monitor session
> 1 destination remote ?
> vlan Remote SPAN destination RSPAN VLAN
>
> SW1(config)#monitor session 1 destination remote vla
> SW1(config)#monitor session 1 destination remote vlan 101 ?
>
>
> SW1(config)#monitor session 1 destination remote vlan 101
>
>
>
>
>
>
>
>
> On Nov 8, 2005, at 9:49 AM, Scott Morris wrote:
>
>
> How about a few ?'s when setting up the monitor session destination
> command line?
>
> _____
>
> From: Mike Flanagan [mailto:mikenoc@mindspring.com]
> Sent: Tuesday, November 08, 2005 9:40 AM
> To: Scott Morris
> Cc: 'Cisco certification'
> Subject: Re: Trouble configuring RSPAN
>
>
> SW1 is the has the source port that I want SW2 to be able to view
> traffic from. The source port is 1/0/1. I am definitely confused on
> the reflector port. What I want to so is monitor traffic from port
> 1/0/1 to a port on sw2.
> From reading what the reflector port does it "SPAN traffic from the
> sources is copied onto the RSPAN VLAN through a reflector port and
> then forwarded over trunk ports that are carrying the RSPAN VLAN to
> any RSPAN destination sessions monitoring the RSPAN VLAN" So I think I
> need to add the reflector port command using the same interface 1/0/1
> instead of 1/0/10. But the problem is the switch is not allowing me to
> add the reflector port command.
> So I am sure I am missing something just do not know what it is.
>
> Thanks,
>
> Mike F.
>
>
>
> On Nov 8, 2005, at 9:02 AM, Scott Morris wrote:
>
>
> Reflector-port is a parameter specified on the source-side of the
> Remote spanning session. It's not a vlan-oriented command.
>
> HTH,
>
> Scott
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of Mike Flanagan
> Sent: Tuesday, November 08, 2005 8:57 AM
> To: Cisco certification
> Subject: Trouble configuring RSPAN
>
> Looking at the doc cd when configuring RSPAN you are to use the
> reflector-port command. I am not seeing this as an option on my
> switch. Is this needed to make this work? I just added the remote-
> vlan instead since that is the only option I had. I am running
> 12.1(19)EA1d
>
>
> Thanks,
>
> http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/
> 3550scg/swspan.htm
>
>
> SW1#conf t
> Enter configuration commands, one per line. End with CNTL/Z.
> SW1(config)#vlan 101
> SW1(config-vlan)#remo
> SW1(config-vlan)#remote-span
> SW1(config-vlan)#end
> SW1#
>
> SW1(config)#monitor session 1 source interface gigabitEthernet 1/0/1
> both SW1(config)#monitor session 1 destination remote vlan 101 ?
>
>
> SW1(config)#$sion 1 destination remote vlan 101 reflector-port
> gig1/0/10 monitor session 1 destination remote vlan 101 reflector-port
> gig1/0/10 ^
>
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