Cisco Systems DSC9148D8G48PK9 manual Interface Description, Interface Modes

Chapter 2 Configuring Interfaces

Information About Interfaces

•Port Group Monitor, page 2-16

•Local Switching, page 2-16

•Slow Drain Device Detection and Congestion Avoidance, page 2-17

•Management Interfaces, page 2-17

•VSAN Interfaces, page 2-18

Interface Description

For the Fibre Channel interfaces, you can configure the description parameter to provide a recognizable name for the interface. Using a unique name for each interface allows you to quickly identify the interface when you are looking at a listing of multiple interfaces. You can also use the description to identify the traffic or the use for that interface.

Interface Modes

Each physical Fibre Channel interface in a switch may operate in one of several port modes: E port, F port, FL port, TL port, TE port, SD port, ST port, and B port (see Figure 2-1). Besides these modes, each

interface may be configured in auto or Fx port modes. These two modes determine the port type during interface initialization.

Figure 2-1 Cisco MDS 9000 Family Switch Port Modes

NL port	NL port
p
N port	Private
ISL lin k	loop

F port

E port

FL port

	Public
	loop
NL port	NL port

E port TL port

79528

Note Interfaces are created in VSAN 1 by default. See the Cisco MDS 9000 Family NX-OS Fabric Configuration Guide.

Each interface has an associated administrative configuration and an operational status:

•The administrative configuration does not change unless you modify it. This configuration has various attributes that you can configure in administrative mode.

	Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
2-2	OL-29284-01, Release 6.x