What am I missing?

I've got a Redhat FC3 box running the 2.6.10-1.741 kernel w/ the stock
e100 driver. I run the following on the box:

ifconfig eth0 0.0.0.0 up
vconfig add eth0 2 
vconfig add eth0 3 

ifconfig eth0.2 10.2.3.122 netmask 255.255.255.0 
ifconfig eth0.3 10.2.5.122 netmask 255.255.255.0

then on the switch (extreme networks black diamond):

config vlan office1 add port 3:35 tagged
config vlan office2 add port 3:35 tagged 

When I try to ping either address niether work. Not sure what I'm
missing here.