White Papers

Table Of Contents
Version Description
9.9(0.0) Added support to display the interface configurations corresponding to a range of
ports.
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the C-Series and S-Series.
6.5.4.0 Introduced on the E-Series.
Usage
Information
The following describes the show interfaces gigabitethernet command following example.
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 the local interface advertises during negotiation. Duplex
is either half or full. Asym- and Sym Pause is the types of flow control the local
interface supports.
AutoNegotiation
Remote Partners
Ability
Displays the control words the remote interface advertises during negotiation.
Duplex is either half or full. Asym- and Sym Pause is the types of flow control
the remote interface supports.
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:
0 - Manual MDI
1 - Manual MDIX
2 - N/A
3 - Auto MDI/MDIX
Phy Specific
Status
Displays PHY-specific status information. Cable length represents a rough estimate
in meters:
0 - < 50 meters
1 - 50 - 80 meters
2 - 80 - 110 meters
3 - 110 - 140 meters
4 - 140 meters
Link Status: Up or Down
Speed:
720 Interfaces