Chassis Switching Fabric; Fabric Boards And Chassis Bandwidth - Alcatel-Lucent OmniSwitch 10K User Manual

Chassis Switching Fabric

Chassis Switching Fabric
Because each CMM module contains its own factory-installed fabric board, only one additional Chassis
Fabric Modules (CFMs) is required for switch operations. However, to provide wire rate bandwidth
performance and fabric redundancy, up to two Chassis Fabric Modules (CFMs) can be added. For more
detailed information, refer to the section below.

Fabric Boards and Chassis Bandwidth

In order to operate at full wire rate, OmniSwitch 10K switches must have a minimum of three fabric
boards operating at all times.
Each fabric board provides slightly more than 33 percent of wire rate, so three fabric boards provide a full
100 percent of wire rate bandwidth for the chassis. The addition of a fourth fabric board (by installing a
redundant CFM module) provides an extra margin of throughput and redundancy.
Each NI module consists of port groups connected by the fabric boards. The following chart outlines
performance per port group, based on the number of fabric boards installed.
NI Type
OS10K-XNI-U32S
OS10K-XNI-U32E
OS10K-GNI-U48E
OS10K-GNI-C48E
OS10K-XNI-U16E
OS10K-XNI-U16L
OS10K-QNI-U4E
OS10K-QNI-U8E
page 3-14
One Fabric
Port Group
Board
Four groups of Not Supported Any five
eight 10Gb
ports
One group of Not Supported All ports
48 GigE ports
One group of Not Supported All ports
48 GigE ports
Two groups of Not Supported Any five
eight 10Gb
ports
Two groups of Not Supported Any one
two 40Gb ports
Four groups of Not Supported Any one port
two 40Gb ports
Chassis Management and Fabric Modules
Two Fabric Three Fabric
Boards Boards
All ports
ports per group operate at wire
operate at wire rate.
rate.
All ports
operate at wire operate at wire
rate. rate.
All ports
operate at wire operate at wire
rate. rate.
All ports
ports per group operate at wire
operate at wire rate.
rate.
All ports
port per group operate at wire
operates at rate.
wire rate.
All ports
per group operate at wire
operates at rate.
wire rate.
OmniSwitch 10K Hardware Users Guide
Four Fabric
Boards
All ports
operate at wire
rate.
All ports
operate at wire
rate.
All ports
operate at wire
rate.
All ports
operate at wire
rate.
All ports
operate at wire
rate.
All ports
operate at wire
rate.
August 2015