Configuring Port Speeds; Autosensing; Configuring Sd Port Frame Encapsulation - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual
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Configuring Port Speeds
Step 4
Configuring Port Speeds
Port speed can be configured on a physical Fibre Channel interface but not on a virtual Fibre Channel interface.
By default, the port speed for an interface is automatically calculated by the switch.
Changing the interface speed is a disruptive operation.
Caution
To configure the port speed of the interface, perform this task:
Procedure
Step 1
Step 2
Step 3
Step 4
Autosensing
Autosensing speed is enabled on all 4-Gbps interfaces by default. This configuration enables the interfaces
to operate at speeds of 1 Gbps, 2 Gbps, or 4 Gbps on the 4-Gbps ports. When autosensing is enabled for an
interface operating in dedicated rate mode, 4-Gbps of bandwidth is reserved, even if the port negotiates at an
operating speed of 1-Gbps or 2-Gbps.
Configuring SD Port Frame Encapsulation
The switchport encap eisl command only applies to SD port interfaces. This command determines the frame
format for all frames transmitted by the interface in SD port mode. If the encapsulation is set to EISL, all
outgoing frames are transmitted in the EISL frame format, for all SPAN sources.
The switchport encap eisl command is disabled by default. If you enable encapsulation, all outgoing frames
are encapsulated, and you will see a new line (Encapsulation is eisl) in the show interface SD_port_interface
command output.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
470
Command or Action
switch(config-if)# no switchport
description
Command or Action
switch# configuration terminal
switch(config)# interface fc
slot/port
switch(config-if)# switchport
speed 1000
switch(config-if)# no switchport
speed
Configuring Fibre Channel Interfaces
Purpose
Clears the description of the interface.
Purpose
Enters configuration mode.
Selects the specified interface and enters interface
configuration mode.
You cannot configure the port speed of a virtual
Note
Fibre Channel interface.
Configures the port speed of the interface to 1000 Mbps.
The number indicates the speed in megabits per second
(Mbps). You can set the speed to 1000 (for 1-Gbps
interfaces), 2000 (for 2-Gbps interfaces), 4000 (for 4-Gbps
interfaces), or auto (default).
Reverts to the factory default (auto) administrative speed of
the interface.
OL-16597-01
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