I am having terrible luck getting 2 seperate HP blade enclosures to trunk with 4507R's via fiber. Both of my blade enclosures have 2 CBS3020's inside. On one enclosure I was able to get one of the switches to trunk with the 4507R over fiber, but the other link still shows down/down on the 4507 end.
On the CBS3020 end I see it as connected, and the switch is incrementing it's output counters on the interface, but on the 4507 the link is down/down.
Any help would be appreciated.