4. The multiport switch as in claim 3, wherein the operation code indicates the tag operation of: inserting the VLAN tag if the data frame is of the untagged type and a corresponding one of the output ports is not a member of the untagged set; stripping the VLAN tag if the data fram...
The IRC searches the untagged set table for the set of ports that are untagged for a particular VLAN. The IRC passes a forwarding descriptor that includes the frame type and a operational code (opcode) to a Port Vector FIFO logic (PVF). The PVF is responsible for creating a new opcode ...
So we have a solution to use 2 cisco 3750 swithes on for input traffic from client then to our NP card and back out via another Cisco3750 switch. The idea is to get the first C3750 to untag the required VLAN and forward it to the NP card and another C3750 to ...