On Sun, Jun 27, 2010 at 12:56:29PM +0200, Joerg Mayer wrote: > On Fri, Jun 25, 2010 at 02:35:28PM -0400, Gary T. Giesen wrote: > > I've run into a bit of a problem with a couple of new Nexus 5010 > > switches we've recently acquired. I've tried to apply our standard MST > > configuration, and have run into the problem that the Nexus has 81 > > VLANs that are reserved for system use (3968 to 4047 & 4094), which > > are not reserved on any of our other Cisco switches. I can work around > > the fact I can't use these VLANs on the Nexus switches, but without > > the configurations being identical, I believe the Nexus switches will > > form a separate MST region and obviously not achieve the forwarding > > path I want (and make load-balancing links impossible). Has anyone > > ever encountered this? Any suggestions? > > > > system image file is: bootflash:/n5000-uk9.4.1.3.N2.1.bin > > Your analysis is correct. Either you have to use different regions > or you will need to change the "problematic" VLANs on all other devices > as well. > AFAIK there is no way to disable the special use of the VLANs that > you are entiteled to use by the 802.1Q-2004 (formerly 802.1s) standard.
Wait - there's no reason you have to change your mapping to avoid those VLANs. Just map them to an instance and get on with life. Then, don't use them. If NX-OS prevents that, it's a bug. Ross -- Ross Vandegrift [email protected] "If the fight gets hot, the songs get hotter. If the going gets tough, the songs get tougher." --Woody Guthrie
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