Tag :: Forwarding

Normally, a switch traps L2 protocol frames to the CPU. However, certain use-cases may require these frames to be forwarded or dropped. In cases where the L2 protocol frames are forwarded (eg: Pseudowire), we may require the frames to be trapped to the CPU or dropped. The L2 Protocol Forwarding feature provides a mechanism to control the behavior of L2 protocol frames received on a port or subinterface.

The sFlow VLAN forwarding feature adds support for providing the VLAN by which the packet is bridged as opposed to the VLAN that is decoded from the Ethernet frame. The VLANs are reported in the sFlow extended switch header’s input VLAN and output VLAN fields, as defined in the sFlow extended switch data.