Chapter 11
| Interface Commands
– 348 –
Command Usage
Available sfp-forced modes include:
Ports 49-52 (1000BASE SFP) support 1000sfp
Example
This forces the switch to use the 1000sfp mode for SFP port 28.
Console(config)#interface ethernet 1/28
Console(config-if)#media-type sfp-forced 1000sfp
Console(config-if)#
negotiation
This command enables auto-negotiation for a given interface. Use the
no
form
to disable auto-negotiation.
Syntax
[
no
]
negotiation
Default Setting
Enabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
◆
1000BASE-T does not support forced mode. Auto-negotiation should
always be used to establish a connection over any 1000BASE-T port or
trunk.
◆
When auto-negotiation is enabled the switch will negotiate the best
settings for a link based on the
command. When auto-
negotiation is disabled, you must manually specify the link attributes with
the
◆
If auto-negotiation is disabled, auto-MDI/MDI-X pin signal configuration will
also be disabled for the RJ-45 ports.
Example
The following example configures port 10 to use auto-negotiation.
Console(config)#interface ethernet 1/10
Console(config-if)#negotiation
Console(config-if)#