Expand Configuration and Management Manual (G06.24+)

Subsystem Description
Expand Configuration and Management Manual—523347-008
18-70
Considerations for Paths Using the Variable Packet
Size Feature and the Multipacket Frame Feature
Considerations for Paths Using the Variable Packet Size Feature
and the Multipacket Frame Feature
The main difference between the variable packet size feature and the multipacket
frame feature is that the multipacket frame feature benefits users who send many small
concurrent requests, while the variable packet size feature benefits users who send
large blocks of data (bulk transfers). Packet size and multipacket frame size can be
configured and negotiated separately on each path.
With variable packet size, the Expand line-handler process should be able to send a
full variable packet inside a multipacket frame. For this reason, the value of the
PATHBLOCKBYTES modifier must be equal to or greater than the value of the
PATHPACKETBYTES modifier.