4507IOS and 6509catOS trunking

[rsandrat]

i have an issue that i was wondering if soomeone can shed some light.

have a GigaMAN connection from carrier - handoff on both WAN locations is already fastEth 100Mb - right to the switch on both ends.

have dot1q encap running between the trunk ports on 6509 and 4507.

added the new 4507 on existin vtp domain. -works great - i can see everything. and now i can add any port on the new sw on any existing vlan.

prob is this - a specific vlan - if i add the 5 devices at the remote - i cant ping the same vlan devices accross the wan.
ifi i do a trace or ping - i cant even get to the first hop.

since i am just passing vlan info across the link - then the L3 routerat the main location should be the gateway.. and it is.

i checked all 15 devices on vlan64 - half are at the new location - and its strange - on the same network number - cant ping across the link to the right place. - but its only for this vlan - all others are fine. ?

its strange since doesnt follow a pattern. the only thing specific about this new vlan - is that this vlan is assigned to the call managers - VoIP - and the other 18 VLANs' are pcs/servers - shouldnt make a diff.

anyyone see anythign like this.
and on a maybe related note - when trunking l2 across two switches - do i need to setup channel-group ?

any help would be good.
thanks.

 

[Jsteve]

I am not sure I fully understand what the problem is. Are you able to communicate across the trunk with the vlan in question?

Please keep in mind the oreintation of the source and destination IP of where and too your pinging from. If it is the same IP in both the soure abd destination, your ping/trace will fail.

also there is no need to do port channel on one link. Port channel is used when you want to bundle two or more links together to make it look like one large pipe.

 

[lambent]

Did you properly configure the default gateway on your devices?
Can you ping from devices to the default gateway?