Cisco MDS 9000 Series Configuration Manual page 86

Configuring Module Interface Shared Resources
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
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Migrating from Shared Mode to Dedicated Mode
To configure 48-port, 24-port, 4/44-port 8-Gbps Fibre Channel switching modules when starting with
the default configuration or when migrating from shared rate mode to dedicated rate mode, follow these
guidelines:
1.
2.
3.
4.
5.
Migrating from Dedicated Mode to Shared Mode
To configure 48-port, 24-port, 4/44-port 8-Gbps Fibre Channel switching modules migrating from
dedicated rate mode to shared rate mode, follow these guidelines:
1.
2.
3.
4.
Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
3-16
Shared and dedicated rate mode
ISL and Fx port modes
Extended BB_credits
Take unused interfaces out of service to release resources for other interfaces, if necessary.
See the "Taking Interfaces Out of Service" section on page
Configure the traffic speed to use (1 Gbps, 2 Gbps, 4 Gbps, 8 Gbps, or autosensing with a maximum
of 2 Gbps or 4 Gbps).
See the "Configuring Port Speed" section on page
Configure the rate mode (dedicated or shared).
See the "Configuring Rate Mode" section on page
Configure the port mode.
See the "About Interface Modes" section on page
ISL ports cannot operate in shared rate mode.
Note
Configure the BB_credits and extended BB_credits, as necessary.
See the "About Extended BB_Credits" section on page
Take unused interfaces out of service to release resources for other interfaces, if necessary.
See the "Taking Interfaces Out of Service" section on page
Configure the BB_credits and extended BB_credits, as necessary.
See the "BB_Credit Buffers for Switching Modules" section on page
Switching Modules" section on page
page 4-17.
Configure the port mode.
See the "About Interface Modes" section on page
ISL ports cannot operate in shared rate mode.
Note
Configure the rate mode (dedicated or shared) to use.
See the "Configuring Rate Mode" section on page
Chapter 3
3-33.
3-19.
3-21.
2-3.
4-17.
3-33.
4-6, and the "About Extended BB_Credits" section on
2-3.
3-21.
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)
Configuring Fibre Channel Interfaces
4-6, "BB_Credit Buffers for