[c-nsp] Question - VLAN tagging Catalyst 6500 to Linux Host

Mon Apr 5 14:36:27 EDT 2010

Don't know any spesific regarding vlan 1006-1024 but you could face problems regarding internal vlans (vrf, layer3 interface, vfi)

'show vlan internal usage' to show if any internal vlans are used
'vlan internal allocation policy ascending' allocates vlan from 1006 upwards
'vlan internal allocation policy descending' allocates vlan from 4094 downwards

Jon

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Fra: cisco-nsp-bounces at puck.nether.net [cisco-nsp-bounces at puck.nether.net] p&#229; vegne av Christopher.Marget at usc-bt.com [Christopher.Marget at usc-bt.com]
Sendt: 5. april 2010 19:53
Til: nick at inex.ie; cisco at peakpeak.com
Kopi: cisco-nsp at puck.nether.net
Emne: Re: [c-nsp] Question - VLAN tagging Catalyst 6500 to Linux Host

Nick Hilliard:
> Just avoid using tags 1002-1005, as Cisco
> has
> made claims to these particular vlans.

According to Cisco Press, the problem is bigger than just VLANs 1002-1005:

"Numbers 1001 to 1024 are reserved by Cisco and cannot be configured."
http://www.ciscopress.com/articles/article.asp?p=29803

I wonder if anyone has run into a problem with VLANs in this larger set?  I have not.

/chris

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