RE: Trouble configuring RSPAN

From: Scott Morris (swm@emanon.com)
Date: Tue Nov 08 2005 - 11:49:07 GMT-3


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 <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 ?
<cr>

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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