RE: When do we require reflector port in RSPAN

From: Daniel Kutchin (daniel@kutchin.com)
Date: Tue Jun 19 2007 - 09:38:03 ART

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Check out Scott's answer to this question here:

http://www.groupstudy.com/archives/ccielab/200611/msg00921.html

On a 3550, the ASICs belong to an interface, hence they need to use a
reflector port

Check here as well:

http://www.cisco.com/warp/public/473/41.html#topic4-2

Daniel

---
Dr. Daniel Kutchin
Consultant Cisco(TM) Networks
Heinrich-Pesch-Str. 55
41239 Moenchengladbach, Germany
Voice: +49 173 5348189
www.kutchin.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Salau, Yemi
Sent: Dienstag, 19. Juni 2007 11:40
To: Narbik Kocharians; CCIE SG
Subject: RE: When do we require reflector port in RSPAN
WHY DO 3550s require reflector ports and 3750s don't?
Before you bombard me, I know that 3550s do require reflector port and
3750s don't ... That's what Cisco told us, but what is the technical
reason???????? 
Many Thanks
 
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Narbik Kocharians
Sent: 18 June 2007 21:03
To: Eric Dobyns
Cc: premkumar somasundaram; ccielab@groupstudy.com
Subject: Re: When do we require reflector port in RSPAN
3550s definitely do need the reflector ports
On 6/18/07, Eric Dobyns <eric_dobyns@yahoo.com> wrote:
>
> I believe 3550s require a reflector port.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> premkumar somasundaram
> Sent: Wednesday, June 13, 2007 7:14 AM
> To: ccielab@groupstudy.com
> 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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