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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 1 Configuring Fibre Channel Interfaces
Information About Fibre Channel Interfaces
Interface States
The interface state depends on the administrative configuration of the interface and the dynamic state of
the physical link. The following sections describe the states and configuration that influence the state:
• Administrative States, page 1-5
• Operational States, page 1-5
• Reason Codes, page 1-5
Administrative States
The administrative state refers to the administrative configuration of the interface. Table 1-1 describes
the administrative states.
Operational States
The operational state indicates the current operational state of the interface. Table 1-2 describes the
operational states.
Reason Codes
Reason codes are dependent on the operational state of the interface. Table 1-3 describes the reason
codes for operational states.
Ta b l e 1- 1 A d m i n i s t r a t i v e S t a te s
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 1-2 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 mode.
Table 1-3 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 1-4.
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