Generation 1 Interfaces Configuration Guidelines - Cisco MDS 9000 Series 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 Generation 1 interfaces configuration 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 NX-OS Interfaces Configuration Guide
2-2
Generation 1 Interfaces Configuration Guidelines, page 2-2
About Interface Modes, page 2-3
About Interface States, page 2-7
Configuring Fibre Channel Interfaces, page 2-11
Graceful Shutdown, page 2-12
Configuring Interface Modes, page 2-13
Configuring Port Speeds, page 2-14
About Interface Descriptions, page 2-15
Configuring the Interface Description, page 2-15
Specifying a Port Owner, page 2-15
About Frame Encapsulation, page 2-16
Identifying the Beacon LEDs, page 2-16
About Beacon Mode, page 2-17
About Bit Error Thresholds, page 2-18
Switch Port Attribute Default Values, page 2-18
About SFP Transmitter Types, page 2-19
Displaying Interface Information, page 2-20
The 32-port, 2-Gbps or 1-Gbps switching module interfaces.
The Cisco MDS 9140 and 9120 switch interfaces.
Due to the hardware design of the MDS 9134 switch, we do not support interface
Note
out-of-service action on either of its two 10-Gigabit ports. This is because no internal port
hardware resource is released when an out-of-service action is performed on these
10-Gigabit ports.
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.
Chapter 2 Configuring Interfaces
OL-19445-02, Cisco MDS NX-OS Release 4.2(x)