From: Mesut Abdurrahmani (mesut@kujtesa.com)
Date: Tue Feb 01 2005 - 20:26:43 GMT-3
Yes, Scenario 1 worked.
Thanks a lot, Balaji
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Balaji Siva
Sent: Wednesday, February 02, 2005 12:08 AM
To: Mesut Abdurrahmani
Cc: ccielab@groupstudy.com
Subject: Re: Remote SPAN Question
I think you are running into CSCef89510
Release-note:
A Catalyst 2950 switch may not RSPAN traffic correctly. This is due
to an ASIC limitation specific to the 2950 platform.
Workaround:
RSPAN will function as expected under the following scenario's:
- Scenario1 (2950's as source, destination, and intermidiate switches):
RSPAN is supported if there is 1 source port, and the SPAN session is
configured as RX only or TX only.
- Scenario2 (2950 as the source switch, and the destination/intermediate
switches are another Cisco platform that supports RSPAN):
RSPAN is supported with multiple sources, and the SPAN session can be
configured as RX only, TX only or Both
- Scenario3 (2950 as destination switch, and the source/intermediate
switches are another Cisco platform that supports RSPAN):
RSPAN is supported if there is 1 source port, and the SPAN session is
configured as RX only or TX only.
- Scenario4 (2950 as intermediate switch for any Cisco platform that
supports RSPAN):
RSPAN is supported if there is 1 source port, and the SPAN session is
configured as RX only or TX only.
On Wed, 2 Feb 2005 00:03:45 +0100, Mesut Abdurrahmani <mesut@kujtesa.com>
wrote:
> Balaji,
>
> The output of this command on switch-A, corresponds also to
> switch-B
>
> Switch-A#show interfaces trunk
>
> Port Mode Encapsulation Status Native vlan
> Fa0/2 desirable 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa0/2 1-4094
>
> Port Vlans allowed and active in management domain
> Fa0/2 1-2,6-7
>
> Port Vlans in spanning tree forwarding state and not pruned
> Fa0/2 1-2,6-7
>
> Thanks,
> Mesut
>
> -----Original Message-----
> From: Balaji Siva [mailto:bsivasub@gmail.com]
> Sent: Tuesday, February 01, 2005 11:54 PM
> To: Mesut Abdurrahmani
> Cc: ccielab@groupstudy.com
>
> Subject: Re: Remote SPAN Question
>
> Can you do a "show interface trunk" ..?
>
> Thanks
> Balaji
>
> On Tue, 1 Feb 2005 23:45:46 +0100, Mesut Abdurrahmani <mesut@kujtesa.com>
> wrote:
> > The output of the trunk on switch-A, the same config corresponds also to
> > switch-B
> >
> > Switch-A#show interfaces fa0/2 switchport
> >
> > Name: Fa0/2
> >
> > Switchport: Enabled
> >
> > Administrative Mode: dynamic desirable
> >
> > Operational Mode: trunk
> >
> > Administrative Trunking Encapsulation: dot1q
> >
> > Operational Trunking Encapsulation: dot1q
> >
> > Negotiation of Trunking: On
> >
> > Access Mode VLAN: 1 (default)
> >
> > Trunking Native Mode VLAN: 1 (default)
> >
> > Voice VLAN: none
> >
> > Administrative private-vlan host-association: none
> >
> > Administrative private-vlan mapping: none
> >
> > Administrative private-vlan trunk native VLAN: none
> >
> > Administrative private-vlan trunk encapsulation: dot1q
> >
> > Administrative private-vlan trunk normal VLANs: none
> >
> > Administrative private-vlan trunk private VLANs: none
> >
> > Operational private-vlan: none
> >
> > Trunking VLANs Enabled: ALL
> >
> > Pruning VLANs Enabled: NONE
> >
> > Capture Mode Disabled
> >
> > Capture VLANs Allowed: ALL
> >
> > Protected: false
> >
> > Regards,
> >
> > Mesut Abdurrahmani
> >
> >
> > -----Original Message-----
> > From: Balaji Siva [mailto:bsivasub@gmail.com]
> > Sent: Tuesday, February 01, 2005 11:37 PM
> > To: Mesut Abdurrahmani
> >
> > Cc: Brian McGahan; ccielab@groupstudy.com
> > Subject: Re: Remote SPAN Question
> >
> > Is that vlan being "forwarded" between the switch. Typically a trunk
> carries
> > it.
> >
> > On Tue, 1 Feb 2005 22:50:32 +0100, Mesut Abdurrahmani
<mesut@kujtesa.com>
> > wrote:
> >
> > > On both switches,
> >
> > >
> >
> > > Switch-A#show vlan remote-span
> >
> > >
> >
> > > Remote SPAN VLANs
> >
> > >
> >
>
----------------------------------------------------------------------------
> >
> > > 6
> >
> > >
> >
> > > Switch-B#show vlan remote-span
> >
> > >
> >
> > > Remote SPAN VLANs
> >
> > >
> >
>
----------------------------------------------------------------------------
> >
> > > 6
> >
> > >
> >
> > > -----Original Message-----
> >
> > > From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
> >
> > >
> >
> > > Sent: Tuesday, February 01, 2005 10:46 PM
> >
> > > To: Mesut Abdurrahmani
> >
> > > Cc: ccielab@groupstudy.com
> >
> > > Subject: RE: Remote SPAN Question
> >
> > >
> >
> > > Mesut,
> >
> > >
> >
> > > Did you *define* the VLAN as an rspan vlan?
> >
> > >
> >
> > > Rack1SW1#conf t
> >
> > > Enter configuration commands, one per line. End with CNTL/Z.
> >
> > > Rack1SW1(config)#vlan 100
> >
> > > Rack1SW1(config-vlan)#remote-span
> >
> > > Rack1SW1(config-vlan)#end
> >
> > > Rack1SW1#
> >
> > > 01:52:41: %SYS-5-CONFIG_I: Configured from console by console
> >
> > > Rack1SW1#show vlan | begin Remote
> >
> > > Remote SPAN VLANs
> >
> > >
------------------------------------------------------------------------
> >
> > > ------
> >
> > > 100
> >
> > >
> >
> > > Primary Secondary Type Ports
> >
> > > ------- --------- -----------------
> >
> > > ------------------------------------------
> >
> > >
> >
> > > Rack1SW1#
> >
> > >
> >
> > > Brian McGahan, CCIE #8593
> >
> > > bmcgahan@internetworkexpert.com
> >
> > >
> >
> > > Internetwork Expert, Inc.
> >
> > > http://www.InternetworkExpert.com
> >
> > > Toll Free: 877-224-8987 x 705
> >
> > > Outside US: 775-826-4344 x 705
> >
> > > 24/7 Support: http://forum.internetworkexpert.com
> >
> > > Live Chat: http://www.internetworkexpert.com/chat/
> >
> > >
> >
> > > > -----Original Message-----
> >
> > > > From: Mesut Abdurrahmani [mailto:mesut@kujtesa.com]
> >
> > > > Sent: Tuesday, February 01, 2005 3:43 PM
> >
> > > > To: Brian McGahan
> >
> > > > Cc: ccielab@groupstudy.com
> >
> > > > Subject: RE: Remote SPAN Question
> >
> > > >
> >
> > > > Brian,
> >
> > > >
> >
> > > > Thanks for you quick response. I've configured reflector-port on a
> >
> > > port
> >
> > > > that
> >
> > > > is not active, switch gives the green light on that port ( I think
it
> >
> > > is
> >
> > > > looped) but still can't sniff the information on Switch A ( source
> >
> > > > switch).
> >
> > > > Other configuration is the same except the reflector-port. Is there
> >
> > > any
> >
> > > > possibility of a bug on catalyst 2950 switches?
> >
> > > >
> >
> > > > Thanks
> >
> > > > Best regards
> >
> > > > Mesut Abdurrahmani
> >
> > > >
> >
> > > >
> >
> > > > -----Original Message-----
> >
> > > > From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
> >
> > > > Sent: Tuesday, February 01, 2005 9:52 PM
> >
> > > > To: Mesut Abdurrahmani; ccielab@groupstudy.com
> >
> > > > Subject: RE: Remote SPAN Question
> >
> > > >
> >
> > > > Mesut,
> >
> > > >
> >
> > > > The reflector port should not be an active interface. In
order
> >
> > > > to run RSPAN you must dedicate one interface to be the reflector
port.
> >
> > > > Change it to something else besides fa0/5 and it should work.
> >
> > > >
> >
> > > > HTH,
> >
> > > >
> >
> > > > Brian McGahan, CCIE #8593
> >
> > > > bmcgahan@internetworkexpert.com
> >
> > > >
> >
> > > > Internetwork Expert, Inc.
> >
> > > > http://www.InternetworkExpert.com
> >
> > > > Toll Free: 877-224-8987 x 705
> >
> > > > Outside US: 775-826-4344 x 705
> >
> > > > 24/7 Support: http://forum.internetworkexpert.com
> >
> > > > Live Chat: http://www.internetworkexpert.com/chat/
> >
> > > >
> >
> > > >
> >
> > > > > -----Original Message-----
> >
> > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> >
> > > > Of
> >
> > > > > Mesut Abdurrahmani
> >
> > > > > Sent: Tuesday, February 01, 2005 2:23 PM
> >
> > > > > To: ccielab@groupstudy.com
> >
> > > > > Subject: Remote SPAN Question
> >
> > > > >
> >
> > > > > Hi
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > I'm trying to implement Remote SPAN feature on my 2 x 2950 but
> >
> > > wasn't
> >
> > > > > successful till now. I have created a Remote Span Vlan on both
> >
> > > > switches
> >
> > > > > (VLAN 6), switches are interconnected through a trunk (Fa0/5). On
> >
> > > > source
> >
> > > > > switch I've used the following commands
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > Monitor session 1 source interface fa0/6 - 24 tx
> >
> > > > >
> >
> > > > > Monitor session 1 destination remote vlan 6 reflector-port fa0/5
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > And on destination switch
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > Monitor session 1 source remote vlan 6
> >
> > > > >
> >
> > > > > Monitor session 1 destination interface fa0/24
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > There are no access ports that use vlan 6 (RSPAN VLAN )as it meant
> >
> > > to
> >
> > > > be
> >
> > > > > and
> >
> > > > > all I've disabled Pruning on Vlan 6.
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > The Reflector-port (fa0/5) on switch A and destination interface
on
> >
> > > > Switch
> >
> > > > > B
> >
> > > > > (fa0/24) goes on monitoring state, which is OK
> >
> > > > >
> >
> > > > > FastEthernet0/24 is down, line protocol is down (monitoring)
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > Hope to get help
> >
> > > > >
> >
> > > > >
> >
> > > > >
> >
> > > > > Thanks in Advance,
> >
> > > > >
> >
> > > > > Regards,
> >
> > > > >
> >
> > > > > Mesut Abdurrahmani
> >
> > > > >
> >
> > > > >
> >
> > > >
> >
> > >
This archive was generated by hypermail 2.1.4 : Thu Mar 03 2005 - 08:51:15 GMT-3