[c-nsp] VLAN on a Cisco 2912-XL

[soiledhalo]

Hello list,

We're trying to enable multiple VLAN pass through from an ISP's 
Extreme switch (model unknown) to our 7206 through a 2912-XL.
The first VLAN that was created has no problems whatsover however with
the creation of the second VLAN we're not seeing it on the switch and
definitely not on our 7200.

Configs are as follows:

--------------------------------
ROUTER
------

interface FastEthernet3/0.950
 description Second VLAN 950
 encapsulation dot1Q 950
 ip address xxx.xxx.xxx.xxx 255.255.255.252
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no cdp enable
!
interface FastEthernet3/0.999
 description First VLAN 999
 encapsulation dot1Q 999
 ip address xxx.xxx.xxx.xxx 255.255.254.0
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no cdp enable


SWITCH
------
interface FastEthernet0/8
 description to ISP
 duplex full
 speed 100
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,950,999,1002-1005
 switchport mode trunk
 no cdp enable 

interface FastEthernet0/3
 description to 7200
 duplex full
 speed 100
 switchport trunk encapsulation dot1q
 switchport mode trunk
----------------------------------------------------


I have removed "switchport trunk allowed vlan 1,950,999,1002-1005" all
to no avail.
show vlan lists the 999 vlan but not 950. Any idea on what I may have missed?

Thanks much.
Richard.