[c-nsp] Subinterfaces on a 6500 Native?

Richard A Steenbegen ras at e-gerbil.net
Wed Oct 4 01:45:41 EDT 2006

On Tue, Oct 03, 2006 at 02:44:21PM -0700, Shane Foster wrote:
> True dot1q sub-ints were first configurable (and working) on
> 12.2(18)SXE/SXF code trains for sup-720.  
> The parser took the config on 12.2.17d.SXB7, but the interfaces did not
> work.
> Per Cisco, feature will never be supported on sup-2.  Asic limitations.

And *useful* subinterface support was first added in SRA. In earlier code, 
you were stuck choosing between switchport mode to do L2 bridging on a 
trunk vlan, and subinterface mode to do AToM. You could do IP termination 
on either, but you couldn't successfully do a L2 vlan 101 and an AToM 
endpoint vlan 102 on the same trunk.

Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)

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