Choosing a Mode of Operation
The VNET switch performs all cross-segment traffic and,
therefore, server responsiveness is not impaired by heavy
cross-segment traffic.
The adapters perform two types of frame switching: port-to-port
and peer-to-peer.
Port-to-port
Occurs when the source and destination ports
both reside on the same adapter. For
example, the adapter forwards data packets
between ports 1 and 2 of adapter 1.
Port-to-port switching is completely
transparent to the server microprocessor.
Peer-to-peer
Occurs when the source and destination ports
reside on separate adapters. Peer-to-peer
switching is accomplished through peer data
transfers across the Micro Channel bus. For
example, the adapters forward data packets
between port 1 of adapter 1 and port 1 of
adapter 2.
138
PC Server 520 User's Handbook for PCI/Micro Channel
Summary of Contents for PC Server 520
Page 1: ...PC Server 520 User s Handbook for PCI Micro Channel IBM...
Page 86: ...Installation Checklist 70 PC Server 520 User s Handbook for PCI Micro Channel...
Page 146: ...Using the Mini Configuration Program 130 PC Server 520 User s Handbook for PCI Micro Channel...
Page 190: ...Using the SCSISelect Utility Program 174 PC Server 520 User s Handbook for PCI Micro Channel...
Page 385: ...Installing Additional Test Programs 207 CMD 3 Chapter 7 Solving Problems 369...
Page 438: ...IBM Part Number 78H6336 Printed in U S A May 1996 78H6336...