Port Rate Modes - Cisco MDS 9000 Series Configuration Manual

Port Groups and Port Rate Modes
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Table 3-2
Part Number
DS-C9134-K9
(Cisco MDS 9134
Fabric switch)
DS-C9124K9
(Cisco MDS 9124
Fabric switch)
DS-C9222i-K9
(Cisco MDS 9222i
Multiservice
Modular switch)
1. A maximum of 4 ports (one per port group) in a 4/44-port 8-Gbps switching module can operate at 8 Gbps bandwidth in

Port Rate Modes

In Generation 2 and Generation 3 modules, you can configure the port rate modes. The port rate mode
configuration is used to determine the bandwidth allocation for ports in a port group. Two port rate
modes are supported:
•
•
Note In Generation 1 modules, you cannot configure the port rate modes. The mode is determined implicitly
based on the port mode and line card type.
Port rate modes are not supported on the Cisco Fabric Switch for HP c-Class BladeSystem, and the Cisco
Note
Fabric Switch for IBM BladeCenter.
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
3-4
Bandwidth and Port Groups for the Fibre Channel Modules and Fabric Switches
Product Name/
Description
32-port 4-Gbps
Fabric switch
2-port 10-Gbps
Fabric switch
24-port 4-Gbps
Fabric switch
18-port 4-Gbps, 4
Gigabit Ethernet
ports and a modular
expansion slot.
dedicated or shared mode. All the other ports can operate at a maximum of 4 Gbps in shared mode or dedicated mode.
Dedicated Rate Mode—A port is allocated required fabric bandwidth to sustain line traffic at the
maximum operating speed configured on the port. For more information, see the
Mode" section on page 3-6.
Shared Rate Mode—Multiple ports in a port group share data paths to the switch fabric and share
bandwidth. For more information, see the
Chapter 3
Bandwidth Per
Number of Ports Port Group
Per Port Group (Gbps)
4 16
1 10
4 16
6 12.8
"Shared Rate Mode" section on page
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
Configuring Fibre Channel Interfaces
Maximum
Bandwidth Per Port
(Gbps)
4 Gbps
10 Gbps
4 Gbps
4 Gbps
"Dedicated Rate
3-7.