6500 Port Input Scheduling (Receive Priority Queue)

[kfarrington]

Guys,

Reading the Cat QoS book, and on page 258 (or approx) it seems to indicate that if you have a line card that supports ports that have a priority receive queue, you can only put frames into this queue if it comes in on a trunk (isl or dot1q), if if not, it will use a default CoS setting and thus be placed into the normal queue.

Can someone confirm this is the case and to use the strict priority receive queue, it has to be received on a trunk, that has a CoS field (user field - isl or dot1q frame) available in the ethernet frame?

Kindest regards,

Ken

[smahbub]

The book is right. to indicate that if you have a line card that supports ports that have a priority receive queue, you can only put frames into this queue if it comes in on a trunk (isl or dot1q), if if not, it will use a default CoS setting and thus be placed into the normal queue