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About the Nortel Ethernet Routing Switch 4500 Series
autonegotiation to connect to this port connect at 10 Mb/s, even if both
devices are capable of higher speeds.
•
If you configure a port to advertise only 100 Mb/s full-duplex capability,
the link becomes active only if the link partner can autonegotiate a 100
Mb/s full-duplex connection. This prevents mismatched speed or duplex
settings if autonegotiation is disabled on the link partner.
•
For testing or network troubleshooting, you can configure a link to
autonegotiate at a particular speed or duplex mode.
Configuring CANA using the CLI
Use the
auto-negotiation-
advertisements
command to configure CANA.
To configure port 5 to advertise the operational mode of 10 Mb/s and full
duplex, enter the following command:
auto-negotiation-advertisements port 5 10-full
The following example displays sample output for the auto-negotiation-
advertisements command to set port 5 to 10 Mb/s and full duplex.
auto-negotiation-advertisements command sample output
4548GT-PWR<config>#interface fastethernet 5
4548GT-PWR<config-if>#auto-negotiation-advertisements port
5 10-full
4548GT-PWR<config-if>#
Viewing current autonegotiation advertisements
To view the
autonegotiation advertisements for the device, enter the following command:
show auto-negotiation-advertisements [port <portlist>]
The following example displays sample output for the show
auto-negotiation-advertisements command after port 5 is set to 10 Mb/s
and full duplex.
show auto-negotiation-advertisements command sample output
4548GT-PWR#show auto-negotiation-advertisements port 5
Unit/Port Autonegotiation Advertised Capabilities
--------- ------------------------------------------------
----------------
1/5
10Full
Viewing hardware capabilities
To view the operational capabilities of the
device, enter the following command:
show auto-negotiation-capabilities [port <portlist>]
The following example displays sample output for the show
auto-negotiation-capabilities command for port 5.
show auto-negotiation-capabilities command sample output
4548GT-PWR#show auto-negotiation-capabilities port 1/5
Nortel Ethernet Routing Switch 4500 Series
Overview — System Configuration
NN47205-500
02.01
Standard
5.0
23 February 2007
Copyright © 2007, Nortel Networks
Nortel Networks Confidential
.