Re: When do we require reflector port in RSPAN

From: Gary Duncanson (gary.duncanson@googlemail.com)
Date: Wed Jun 13 2007 - 09:55:05 ART


The reflector port is the mechanism that copies packets onto an RSPAN VLAN.
The reflector port forwards only the traffic from the RSPAN source session
with which it is affiliated. Any device connected to a port set as a
reflector port loses connectivity until the RSPAN source session is
disabled.

http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12113ea1/3550scg/swspan.htm

----- Original Message -----
From: "premkumar somasundaram" <premkumar.somasundaram@gmail.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, June 13, 2007 1:14 PM
Subject: When do we require reflector port in RSPAN

> Group.
> As my understanding , RSPAN is used to montior the traffic when the source
> port is connected to say switch A and destination port is conneced to
> Switch
> B. The configuration is as follows.
>
> Switch A
>
> vlan 100
> remote-span
>
> monitor session 1 source vlan 150
> monitor session 1 destination remote vlan 100
>
>
> Switch B
>
> vlan 100
> remote-span
>
> monitor session 1 source remote vlan 100
> monitor session 1 destination port fast0/6
>
> I believe the above configuration is right. Do we require reflector port.
> If
> yes when do we require it.
>
>
> Thanks
> Prem
>
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