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For questions about Cisco Virtual Switching System (VSS). For instance, you want to convert your 6500 Series switches with Supervisor 2T to run as one virtual switch. Therefore you have questions about how to enable VSS and what to consider before doing so.

8 votes

UDLD in VSS configurations

If you are referring the the VSL between the to VSS switches, I don't think it makes sense to enable UDLD because LMP will detect a unidirectional link. … For this and more LMP and VSS info: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/VSS30dg/VSS-dg_ch2.html#wp1055977 …
scottm32768's user avatar
17 votes
Accepted

NX-OS peer-switch issues with 6500 VSS

The links to the VSS are a vPC, yet on the VSS side I had configured them as separate Etherchannels for each Nexus switch. It was now two logically different connections, which created the errors. … Moving the links all into the same Etherchannel on the VSS resolved the problem. …
scottm32768's user avatar