show interfaces phy
Display auto-negotiation and link partner information.
C-Series, E-Series, S-Series, Z-Series
Syntax
show interfaces gigabitethernet slot/port phy
Parameters
gigabitethernet Enter the keyword gigabitethernet followed by the slot/port
information.
Command Modes
• EXEC
• EXEC Privilege
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the C-Series and S-Series.
Version 6.5.4.0 Introduced on the E-Series.
Usage
Information
The following describes the show interfaces gigabitethernet command Example
below.
Mode Control Indicates if auto negotiation is enabled. If so, indicates the
selected speed and duplex.
Mode Status Displays auto negotiation fault information. When the interface
completes auto negotiation successfully, the autoNegComplete
field and the linkstatus field read “True.”
AutoNegotiation
Advertise
Displays the control words advertised by the local interface during
negotiation. Duplex is either half or full. Asym- and Sym Pause is the
types of flow control supported by the local interface.
AutoNegotiation
Remote Partner’s
Ability
Displays the control words advertised by the remote interface during
negotiation. Duplex is either half or full. Asym- and Sym Pause is the
types of flow control supported by the remote interface
AutoNegotiation
Expansion
ParallelDetectionFault is the handshaking scheme in which the link
partner continuously transmit an “idle” data packet using the Fast
Ethernet MLT-3 waveform. Equipment that does not support auto-
negotiation must be configured to exactly match the mode of
operation as the link partner or else no link can be established.
1000Base-T
Control
1000Base-T requires auto-negotiation. The IEEE Ethernet standard
does not support setting a speed to 1000 Mbps with the speed
command without auto-negotiation. E-Series line cards support both
full-duplex and half-duplex 1000BaseT.
Phy Specific
Control
Values are:
734
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