Admin Guide

Configuring Ethernet ports with Autonegotiation
Configure Ethernet ports so they operate optimally for your network conditions. These ports use the
Small Form Factor Pluggable plus (SFP+) transceivers. The default is enabled for VSP 8000 Series
but disabled for VSP 7200 Series.
About this task
Important:
• When you use 1 Gigabit Ethernet SFP transceivers on VSP 7254XSQ, the software
disables auto-negotiation on the port:
- If you use 1 Gbps fiber SFP transceivers, the remote end must also have auto-
negotiation disabled.
- If you use 1 Gbps copper SFP transceivers, the remote end must have auto-negotiation
enabled. If not, the link will not be established.
• Alll ports that belong to the same MLT or Link Aggregation Control Protocol (LACP) group
must use the same port speed. In the case of MLTs, the software does not enforce this.
• Release 4.0 is lenient in allowing mismatched autonegotiation settings between local ports
and their remote link partners.
• VOSS 4.1 and later software requires the same autonegotiation settings on link partners to
avoid incorrect declaration of link status. Mismatched settings can cause the links to stay
down. Ensure the autonegotiation settings between local ports and their remote link
partners match before upgrading software Release 4.0 to VOSS 4.1 or later.
Procedure
1. Enter GigabitEthernet Interface Configuration mode:
enable
configure terminal
interface GigabitEthernet {slot/port[/sub-port][-slot/port[/sub-
port]][,...]}
Note:
If your platform supports channelization for 40 Gbps ports and the port is channelized,
you must also specify the sub-port in the format slot/port/sub-port.
2. Enable Autonegotiation:
auto-negotiate [port {slot/port[/sub-port][-slot/port[/sub-port]]
[,...]}] enable
3. Disable Autonegotiation:
no auto-negotiate [port {slot/port[/sub-port][-slot/port[/sub-port]]
[,...]}] enable
Chassis operations configuration using ACLI
October 2015 Administering Avaya VSP 7200 Series and 8000 Series 77
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