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20-8
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 20 Configuring Interfaces
Fibre Channel Interfaces
Operational States
The operational state indicates the current operational state of the interface as described in Table 20-2.
Reason Codes
Reason codes are dependent on the operational state of the interface as described in Table 20-3.
Note Only some of the reason codes are listed in Table 20-4.
If the administrative state is up and the operational state is down, the reason code differs based on the
nonoperational reason code as described in Table 20-4.
Table 20-1 Administrative States
Administrative State Description
Up Interface is enabled.
Down Interface is disabled. If you administratively disable an interface by shutting
down that interface, the physical link layer state change is ignored.
Table 20-2 Operational States
Operational State Description
Up Interface is transmitting or receiving traffic as desired. To be in this state, an
interface must be administratively up, the interface link layer state must be up, and
the interface initialization must be completed.
Down Interface cannot transmit or receive (data) traffic.
Trunking Interface is operational in TE or TF mode.
Table 20-3 Reason Codes for Interface States
Administrative
Configuration
Operational
Status Reason Code
Up Up None.
Down Down Administratively down—If you administratively configure an interface
as down, you disable the interface. No traffic is received or transmitted.
Up Down See Table 20-4.
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