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MDS VSAN Domain ID

Unanswered Question
Nov 10th, 2005
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Hi everybody.


I have theoretical question that concerns the VSANs. If I can configure up to 254 user VSANs, how can I assign unique Domain ID to each of them, if I have the limitation of 239 domains. Thank you for the attention.


Cheers,


Dancho

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tblancha Thu, 11/10/2005 - 19:35
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  • Cisco Employee,

You aren't limited to having unique DID if the vsans don't touch. Each vsan is completely unique and vsan X, domain Y is completely different than vsan A, domain Y. Imagine that if the sans are physically separated, then domains do not need to be unique. So, when you logically separate them, they are still separate and can have the same domain.


If you think about it from an IP network point of view, the vlan A can have the same IP subnet as vlan B if they never attempt to contact each other or route between them.

mrfrase Thu, 11/10/2005 - 20:03
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To add to what Tim has said, if there is a requirement to get a device from VSAN to VSAN there is Inter VASN Routing (IVR) used if VSANs have unique VSAN domain ID's & IVR NAT if Domain ID's overlab

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