[c-nsp] VLAN 1005 Translation?

[Paul Stewart]

I have a GigE coming in from another provider and they are sending us a
trunk - one of the VLAN's is 1005 (yup, that's right). This is a 7606
Sup720-3BXL

Not fully understanding the purpose of 1005, it doesn't work.  Trying to
take a trunk in from them and then send 1005 and a few others out to another
box.  The other VLAN's work fine.

So, I thought I might be able to do VLAN translation - is that possible on
1005?  I just want to take 1005 and translate it to 900:

interface GigabitEthernet4/7
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 18,84,108,127,131,139,151,163,164,172,175,176
 switchport trunk allowed vlan add
180,193,195,196,198,200,243,245,326,341,364
 switchport trunk allowed vlan add 381,382,389,391,402,696,1005
 switchport mode trunk
 switchport vlan mapping enable
 switchport vlan mapping 1005 900


Is there anything I can do to make this work or is my config wrong?  Also,
do I have to translate *back* somewhere such as the "outgoing" port?

Thanks very much,

Paul