Cana In Acli; Displaying The Current Autonegotiation Advertisements In Acli - Avaya 3500 Series Getting Started

In certain situations, it is useful to autonegotiate a specific speed and duplex value. In these
situations, the switch can allow for attachment at an operating mode other than its highest supported
value.
For example, if the switch advertises only a 100 Mbps full-duplex capability on a specific link, the
link goes active only if the neighboring device is also capable of autonegotiating a 100 Mbps full-
duplex capability. This prevents mismatched speed and duplex modes if customers disable
autonegotiation on the neighboring device.
Important:
The CANA feature is available for 10/100 Ethernet ports of ERS 3526T switches, and
10/100/1000 ports on the ERS 3510GT and ERS 3524GT switches (not available for rear ports).

CANA in ACLI

You can control the capabilities that are advertised by the Ethernet Routing Switch as part of the
auto-negotiation process using the CANA feature. After auto-negotiation is disabled, the hardware is
configured for a single (fixed) speed and duplex value. After auto-negotiation is enabled, the
advertisement made by the switch is a constant value based upon all speed and duplex modes
supported by the hardware. After auto-negotiating, the switch selects the highest common operating
mode supported between it and its link partner.

Displaying the current autonegotiation advertisements in ACLI

Use this command to display the current autonegotiation advertisements.
Procedure
1. Enter Privileged EXEC mode:
enable
2. To display the current autonegotiation advertisements, enter the following command:
show auto-negotiation-advertisements [port <portlist>]
Example
switch#show auto-negotiation-advertisements port 1/20-26
Unit/Port Autonegotiation Advertised Capabilities
--------- -------------------------------------------------------------------
1/20 10Full 10Half 100Full 100Half
1/21 10Full 10Half 100Full 100Half
1/22 10Full 10Half 100Full 100Half
1/23 10Full 10Half 100Full 100Half
1/24 10Full 10Half 100Full 100Half
1/25 10Full 10Half 100Full 100Half 1000Full
1/26 10Full 10Half 100Full 100Half 1000Full
July 2015
Comments on this document? infodev@avaya.com
Custom Autonegotiation Advertisements
AsymmPause
AsymmPause
Getting Started with Avaya ERS 3500 Series
95