[c-nsp] Bridging two VLANs on Catalyst 6500

[Piff]

Hello,

can I bridge two VLANs on a Catalyst 6500 with an external switch?
The Catalyst is running IOS Version 12.2 (18) SFX.
The external switch is an Alteon AD.

Thanks,
/P

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[Piff]

Hello,

Few days ago, I tried to ask the following:
> can I bridge two VLANs on a Catalyst 6500 with an external switch?
> The Catalyst is running IOS Version 12.2 (18) SFX.
> The external switch is an Alteon AD.

When the VLANs are bridged I get:

Apr 13 11:27:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on
GigabitEthernet8/1 (10), with router6500 GigabitEthernet8/2 (20).
Apr 13 11:27:19: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on
GigabitEthernet8/2 (20), with router6500 GigabitEthernet8/1 (10).

Any suggestions?

Thanks,
/P

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[Tim Stevenson]

Turn off CDP.

Tim

At 08:41 AM 4/13/2006, Piff observed:
>Hello,
>
>Few days ago, I tried to ask the following:
> > can I bridge two VLANs on a Catalyst 6500 with an external switch?
> > The Catalyst is running IOS Version 12.2 (18) SFX.
> > The external switch is an Alteon AD.
>
>When the VLANs are bridged I get:
>
>Apr 13 11:27:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
>discovered on
>GigabitEthernet8/1 (10), with router6500 GigabitEthernet8/2 (20).
>Apr 13 11:27:19: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
>discovered on
>GigabitEthernet8/2 (20), with router6500 GigabitEthernet8/1 (10).
>
>Any suggestions?
>
>Thanks,
>/P
>
>_______________________________________________
>cisco-nsp mailing list cisco-***@puck.nether.net
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Tim Stevenson, ***@cisco.com
Routing & Switching CCIE #5561
Technical Marketing Engineer, Catalyst 6500
Cisco Systems, http://www.cisco.com
IP Phone: [phone]
********************************************************
The contents of this message may be *Cisco Confidential*
and are intended for the specified recipients only.
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[Chris Griffin]

Would sure be nice if you could tell IOS not to alert on Native VLAN
mismatches if the port were not in a configuration where it could become
a trunk (switchport nonegotiate + switchport mode access)

Chris

Tim Stevenson wrote:
> Turn off CDP.
>
> Tim
>
> At 08:41 AM 4/13/2006, Piff observed:
>> Hello,
>>
>> Few days ago, I tried to ask the following:
>>> can I bridge two VLANs on a Catalyst 6500 with an external switch?
>>> The Catalyst is running IOS Version 12.2 (18) SFX.
>>> The external switch is an Alteon AD.
>> When the VLANs are bridged I get:
>>
>> Apr 13 11:27:07: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
>> discovered on
>> GigabitEthernet8/1 (10), with router6500 GigabitEthernet8/2 (20).
>> Apr 13 11:27:19: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch
>> discovered on
>> GigabitEthernet8/2 (20), with router6500 GigabitEthernet8/1 (10).
>>
>> Any suggestions?
>>
>> Thanks,
>> /P
>>
>> _______________________________________________
>> cisco-nsp mailing list cisco-***@puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
>
>
> Tim Stevenson, ***@cisco.com
> Routing & Switching CCIE #5561
> Technical Marketing Engineer, Catalyst 6500
> Cisco Systems, http://www.cisco.com
> IP Phone: [phone]
> ********************************************************
> The contents of this message may be *Cisco Confidential*
> and are intended for the specified recipients only.
> _______________________________________________
> cisco-nsp mailing list cisco-***@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
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--
Chris Griffin ***@ufl.edu
Sr. Network Engineer - CCNP Phone: [phone]
Network Services / Florida LambdaRail Fax: [phone]
University of Florida Gainesville, FL 32611
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[Clinton Work]

Your not the first person to ask for this. I can remember several
discussions on cisco-nsp about the same thing.

Chris Griffin wrote:
> Would sure be nice if you could tell IOS not to alert on Native VLAN
> mismatches if the port were not in a configuration where it could become
> a trunk (switchport nonegotiate + switchport mode access)
>
> Chris

--
===================================================
Clinton Work ***@scripty.com
Calgary, AB
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