SPAN on 3560s, RSPAN instead?

Need a little help with this since I am not too familiar with RSPAN. Here is the situation in a nutshell. We have a Voice and Data network over multiple 3560 switches configured with several VLANs as follows:
VLAN 2 - Voice
VLAN 3 - Data
VLAN 10 - Voice
We use an IPCC recording server attached to the second switch to record calls on VLAN 10 (hence the two voice VLAN's). The phones that are on VLAN 10 are spread out between all 5 switches. The port on the second switch is tagged to VLAN 20 and is the only port on VLAN 20. Currently I have the monitor setup on Switch 1 as follows:
#show monitor
Session 1
Type : Remote Source Session
Source VLANs :
Both : 10
Dest RSPAN VLAN : 20
monitor session 1 source vlan 10
monitor session 1 destination remote vlan 20
The problem is two fold. Not all of the phones on VLAN 10 are able to be recorded on the server. We are also able to record some of the phones from VLAN 2 even though they should not be able to.
Its been suggested that doing this via RSPAN would fix the problem. If thats the case then what should the RSPAN config look like?

When you say VLAN 100 do you mean VLAN 99?
From what I am gathering the basic config for all the switches where the destination port/vlan is not on would be as follows:
create vlan 99 with:
vlan 99
remote-span
then setup the monitor:
monitor session 1 source vlan 10
monitor session 1 destination vlan 99
On the switch where the destination would be is:
create vlan 99 with:
vlan 99
remote-span
then setup the monitor:
monitor session 1 source vlan 10
monitor session 1 destination vlan 99
then setup the second monitor:
monitor session 2 source vlan 99
monitor session 2 desination interface fa0/20
By doing it that way I basically get ride of vlan 20 that I was using before in favor of a specific port.

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Hello,
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Hi,
I'm trying to configure a RSPAN with multiple source ports on multiple switches and 1 destination port.
On the first switch I have :
Session 1
Type                   : Remote Source Session
Source Ports           :
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Dest RSPAN VLAN        : 400
On the second switch I have :
Session 1
Type                   : Remote Source Session
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any idea ?
Thanks
Stéph.

Hi Stephane,
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Cheers,
Shashank
Please rate if you found the content useful

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Hi,
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Would be great if anybody could send me a link to the information how many span ports are supported on the new Cat68 series.
Regards
Thorsten Steffen

For sup2t
========
Local SPAN, RSPAN, and ERSPAN Session Limits
Total Sessions
Local and Source Sessions
Destination Sessions
Local SPAN,
RSPAN Source,
ERSPAN Source
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Local SPAN Egress-Only
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ERSPAN
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2
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KarenC_VZW
Follow us on twitter @VZWSupport

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Follow us on twitter @VZWSupport

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Hi,
I need to setup port mirroring on Catalyst 4006 switch. Both source and destination port is on the same switch.
I need to capture all traffics across the LAN for analysis. Is it enough by configuring SPAN? Please advise.

Hi Friend,
If your both source and destination port are on a same switch you are good to go with SPAN.
Have a look at this link to configure SPAN on cat4k switch
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/rel7_1/config/span.htm
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Also instead of configuring a specific source port to capture you can capture complete vlan when you configure SPAN you can also configure source vlan to capture all traffic on and for that vlan.
HTH, if yes please rate the post.
Ankur

SPAN on 3560s, RSPAN instead?

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