
Command Line Interface
4-138
4
Command Usage
• The 1000BASE-T standard does not support forced mode. Auto-negotiation
should always be used to establish a connection over any 1000BASE-T port
or trunk. If not used, the success of the link process cannot be guaranteed.
• When auto-negotiation is enabled the switch will negotiate the best settings
for a link based on the
capabilities
command. When auto-negotiation is
disabled, you must manually specify the link attributes with the
speed-duplex
and
flowcontrol
commands.
• If autonegotiation is disabled, auto-MDI/MDI-X pin signal configuration will
also be disabled for the RJ-45 ports.
Example
The following example configures port 11 to use autonegotiation.
Related Commands
capabilities (4-138)
speed-duplex (4-136)
capabilities
This command advertises the port capabilities of a given interface during
autonegotiation. Use the
no
form with parameters to remove an advertised
capability, or the
no
form without parameters to restore the default values.
Syntax
[
no
]
capabilities
{
1000full
|
100full
|
100half
|
10full
|
10half
|
flowcontrol
|
symmetric
}
•
1000full
- Supports 1 Gbps full-duplex operation
•
100full
- Supports 100 Mbps full-duplex operation
•
100half
- Supports 100 Mbps half-duplex operation
•
10full
- Supports 10 Mbps full-duplex operation
•
10half
- Supports 10 Mbps half-duplex operation
•
flowcontrol
-
Supports flow control
•
symmetric
(Gigabit only) - When specified, the port transmits and receives
pause frames; when not specified, the port will auto-negotiate to determine
the sender and receiver for asymmetric pause frames. (
The current switch
ASIC only supports symmetric pause frames.
)
Default Setting
• 1000BASE-T: 10half, 10full, 100half, 100full, 1000full
• 1000BASE-SX/LX/LH: 1000full
Console(config)#interface ethernet 1/11
Console(config-if)#negotiation
Console(config-if)#
Summary of Contents for ES4524M-PoE
Page 2: ......
Page 4: ...ES4524M PoE F1 0 0 5 E012008 ST R01 149100037400A...
Page 22: ...xviii Tables...
Page 26: ...xxii Figures...
Page 34: ...Introduction 1 8 1...
Page 270: ...Configuring the Switch 3 226...
Page 404: ...Command Line Interface 4 134 4...
Page 546: ...Software Specifications A 4 A...
Page 559: ......