[c-nsp] how to accomplish multiple 'native' vlans

[David Prall]

interface x 0/y
switchport trunk native vlan Z

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> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Chris Hale
> Sent: Thursday, September 11, 2008 12:35 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] how to accomplish multiple 'native' vlans
> 
> All -
> 
> We are converting our L2 network from Riverstone to Cisco.  One
> problem I have not been able to solve yet is the way the Riverstone
> and Cisco units handle untagged traffic entering a physical port.  We
> have many connections to customers whereby we have equipment we would
> like to manage with management VIDs inline with untagged customer
> traffic.  When it enters the Ethernet trunk port on the Riverstone, we
> are able to assign the untagged traffic to a VID and it traverses the
> trunk ports where allowed as tagged traffic.  It doesn't seem like the
> Cisco switches have this ability - only one native VLAN per switch.
> Is there some way to accept multiple ports of untagged traffic and tag
> each ports' untagged traffic with separate VIDs?
> 
> Example:
> 
> fa0/1 - mgmt VID 10, customer traffic untagged (needs to be tagged
> with VID 100 for L3 routing)
> fa0/2 - mgmt VID 10, customer traffic untagged (needs to be tagged
> with VID 101 for L3 routing)
> etc.
> fa0/24 - trunk port to L3 device
> 
> We are using 2960 and 3560 switches.  Any other ideas are welcome, but
> we would prefer to minimize any CPE equipment at customer site to tag
> their traffic with the appropriate customer VID.  It's a matter of
> additional cost, additional management devices, and additional points
> of failure.
> 
> Thanks,
> Chris
> 
> -- 
> ------------------
> Chris Hale
> chale99 at gmail.com
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