From: Joe Smith (j333smith@hotmail.com)
Date: Thu Feb 17 2005 - 11:20:29 GMT-3
From the DOC CD:
You can have only one destination port per SPAN session. You cannot have two
SPAN sessions using the same destination port.
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12120ea2/3550scg/swspan.htm
>From: "ccie2be" <ccie2be@nyc.rr.com>
>Reply-To: "ccie2be" <ccie2be@nyc.rr.com>
>To: "Radu Pavaloiu" <Radu.Pavaloiu@connex.ro>, "Group Study"
><ccielab@groupstudy.com>
>Subject: Re: RSPAN
>Date: Wed, 16 Feb 2005 15:26:14 -0500
>
>IOW, I have to configure two sessions: a) the rspan session for both
>switches and b) a span session.
>
>OK, but can both sessions have the same destination port?
>
>Remember there's only sniffer.
>
>Thank, Tim
>----- Original Message -----
>From: "Radu Pavaloiu" <Radu.Pavaloiu@connex.ro>
>To: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study" <ccielab@groupstudy.com>
>Sent: Wednesday, February 16, 2005 2:30 PM
>Subject: RE: RSPAN
>
>
>I think you need to use "monitor ses 2 soour vlan 2 rx" on sw2, because
>ses 1 was fully configured with source remote vlan 10.
>
>Regards,
>
>I die. I fracture into thousands of fragments of flushed embarrassment.
>My body parts fly, connectionless, over a badly constructed spanning
>tree that isn't quite loop free.
>I fall screaming into 127.0.0.1.
>
>
>Radu
>#2658
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>ccie2be
>Sent: Wednesday, February 16, 2005 8:19 PM
>To: Group Study
>Subject: RSPAN
>
>
>Hi guys,
>
>
> This is interesting.
>
> sw1 and sw2 are configured for rspan. On sw1, all incoming traffic
>from vlan 2 is being sent to a sniffer on sw2's fa0/23.
>
> sw2 doesn't have any ports assigned to vlan 2.
>
> Here's the config:
>
> SW1#f monit
> monitor session 1 source vlan 2 rx
> monitor session 1 destination remote vlan 10 reflector-port Fa0/7 !
>sw2#f monit monitor session 1 destination interface Fa0/23 monitor
>session 1 source remote vlan 10 ! end
>
> sw2#c
> Enter configuration commands, one per line. End with CNTL/Z.
>sw2(config)#mon ses 1 sour vlan 2 rx % Cannot add VLANs as source for
>session 1 - a RSPAN Destination session sw2(config)#
>
>Notice that the switch doesn't allow me to vlan 2 as another source.
>
>
> Suppose sw2 had ports assigned to vlan 2. How would I configure rspan
>to monitor all traffic received from vlan 2?
>
> If sw2 had ports assigned to vlan 2, wold rspan automatically include
>the traffic from those sw2 ports in vlan 2 because of the config on
>sw1?
>
> TIA, Tim
>
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