Chapter 13 Configuring Interface; Generation 1 Interfaces Configuration Guidelines - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Fibre Channel Interfaces
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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Generation 1 Interfaces Configuration Guidelines

The 32-port switching module guidelines apply to the following hardware:
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When configuring these host-optimized ports, the following port mode guidelines apply:
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Cisco MDS 9000 Family CLI Configuration Guide
13-2
Configuring Fibre Channel Interfaces, page 13-11
Graceful Shutdown, page 13-12
Configuring Interface Modes, page 13-13
Configuring Port Speeds, page 13-14
Enabling N Port Identifier Virtualization, page 13-17
About Interface Descriptions, page 13-17
Configuring the Interface Description, page 13-17
Specifying a Port Owner, page 13-15
Configuring Port Guard, page 13-16
About Frame Encapsulation, page 13-17
About Receive Data Field Size, page 13-18
Configuring Receive Data Field Size, page 13-18
Identifying the Beacon LEDs, page 13-18
About Beacon Mode, page 13-19
About Bit Error Thresholds, page 13-19
Switch Port Attribute Default Values, page 13-20
About SFP Transmitter Types, page 13-21
Displaying Interface Information, page 13-22
The 32-port, 2-Gbps or 1-Gbps switching module
The Cisco MDS 9124 and 9134 switches
You can configure only the first port in each 4-port group (for example, the first port in ports 1-4,
the fifth port in ports 5-8 and so on) as an E port. If the first port in the group is configured as an E
port, the other three ports in each group (ports 2-4, 6-8 and so on) are not usable and remain
shutdown.
If you execute the write erase command on a 32-port switching module, and then copy a saved
configuration to the switch from a text file that contains the no system default switchport
shutdown command, you need to copy the text file to the switch again for the E ports to come up
without manual configuration.
If any of the other three ports are enabled, you cannot configure the first port as an E port. The other
three ports continue to remain enabled.
The auto mode is not allowed in a 32-port switching module or the host-optimized ports in the Cisco
9100 Series (16 host-optimized ports in the Cisco MDS 9120 switch and 32 host-optimized ports in
the Cisco MDS 9140 switch).
The default port mode is Fx (Fx negotiates to F or FL) for 32-port switching modules.
The 32-port switching module does not support FICON.
Chapter 13 Configuring Interfaces
OL-18084-01, Cisco MDS NX-OS Release 4.x