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Existing VLAN's and 6224
Help is all i can say....
I currently have a mixture of Dell and Cisco network kit.
The cisco sits at the core of our network and is a Catalyst 4006. It has a several VLAN's configured on it for server,workstation, etc.
The issue is that i cant get the VLAN information to populate to the new Power Connect 6224 switch and is causing me a big headace. The Cisco uses STP and i belive the dell does to but does not seem to work.
Has anyone else had a similar issue or have any ideas on how to fix it?
Thanks
The Dell is connected to the 4k via Cat5 straight into the Cicso 4k. I am also able to use fibre but for testing Cat5 will befine.
An 802.1q trunk is between them.
The end restult i am looking for is for the Cisco to pass on the VLAN information to the Dell switch so i can use the VLANs created on the cisco on the Dell.
Thanks for your help.
stormytoad
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Posted April 2nd, 2008 13:00
I am not an expert on dynamic VLANs, but I think you'll have to reconfigure your Cisco device to use GVRP instead of VTP. Here is a link to a Cisco guide (which I think is for your hardware)
http://www.cisco.com/en/US/docs/switches/lan/catalyst4000/7.3/configuration/guide/gvrp.html
You should also make sure all your other hardware supports GVRP before you start. Let me know how it goes.
Another thought you might be able to run GVRP on the Dell and just mirror the config, but I would hate to support two protocals.
sentinel-master
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Posted April 2nd, 2008 20:00
Good - I needed to know you had a dot1Q trunk between the devices - so you can pass VLAN information.
In tha case you will need to enable GVRP on both devices Dell / cisco . Also check the join/leave timers are consistent between the two vendors, as this could lead to accidental pruning if timers are not the same.
just thought i would update the post.
After some investigation i came to the same conclusion above that we would need to use GVRP instead of VTP. The issue we now have is that the Cisco 4006 does not support GVRP in any IOS version for it. So it looks like the options are to buy a new switch or look at upgrading the entire network to dell.
Thanks for your help
sentinel-master
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Posted April 3rd, 2008 07:00
Yes by default Cisco switches (IOS) all run VTP as their VLAN distribution protocol - hence my first post.
The only support for GVRP is in CatOS - the layer 2 "set command " structure - so you have to downgrade your 4006 supervisor to a CAtOS level of code - only problem with that is the newer 4K Sup's are IOS only.
Bit of a rock and a hard place you are in......what Supervisor are you running - 3, 4,5 or 6 ?
sentinel-master
345 Posts
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Posted March 28th, 2008 19:00
I think you may be confusing yourself :
VLAN information distribution - which Cisco has a proprietary protocol for (VTP) -(VLAN Trunking Protocol). which allows any connected Cisco switch to learn about VLANS (VLAN.NO , Vlan name etc) without an end user having to configure it each time. This is only for Cisco to Cisco devices.
Spanning tree protocol (STP) can work between different vendors - Cisco & Dell......but SPT is not a VLAN information exchange - its role is to establish a root bridge and loop free topology.