PAgP messages are always sent to the well-known Cisco multicast address 01-00-0C-CC-CC-CC with protocol type code 0x0104.
Cisco devices that run IOS (native and/or non-hybrid mode boxes) support individual port configuration for LACP and are not restricted to per-module settings as with CatOS.
Cisco's 6500 and the 4500E platforms, remove this limitation using Virtual Switching System (VSS),[1] which allows port channels to be split between two chassis.
"[2] This does not automatically mean that a single transfer will use all of the aggregated interfaces bandwidth; rather, this depend on the distribution method of choice.
However, some PagP-enabled switches can negotiate between a "maximize load balancing" and "preserve ordering" link: the former give maximum aggregated bandwidth at the expense of packet ordering, while the latter assures no packet reordering to occur but limit a single transfer to the bandwidth of a single interface.