Forwarding destination prediction enables visibility into how a packet is forwarded through the switch, allowing you to determine which interface(s) a packet would egress out of. This feature has been expanded upon with support for packets specified as a byte stream, allowing you to fully specify the packet.

Forwarding destination prediction enables visibility into how a packet is forwarded through the switch, allowing you to determine which interfaces a packet would egress out of. Typical use cases include, but are not limited to, determining egress members for Port-Channels and ECMPs. Note that ECMPs and Port-Channels are essentially the same in terms of forwarding destinations.

Identity tagging is an existing Tap Aggregation feature that allows a 802.1Q header to be added to packets sent by tool ports with a configurable identity value.