|
Feature |
Product |
Release introduced |
|---|---|---|
|
Auto-Negotiation |
5320 Series |
Fabric Engine 8.6 |
|
5420 Series |
VOSS 8.4 SFP-DD ports are only available if you disable Advanced Feature Bandwidth Reservation. |
|
|
5520 Series |
VOSS 8.2.5 Not supported on 5520-24X or 5520-VIM-4X QSFP28 ports are only available if you disable Advanced Feature Bandwidth Reservation. 5520-48SE and 5520-VIM-4XE at 1 Gbps only 5520-VIM-4YE at 25 Gbps only |
|
|
5720 Series |
Fabric Engine 8.7 |
|
|
7520 Series |
Fabric Engine 8.10 |
|
|
7720 Series |
Fabric Engine 8.10 |
|
|
VSP 4900 Series |
VOSS 8.1 Not supported on:
VSP4900-12MXU-12XE - all fixed ports, with ports 13 to 24 at 1 Gbps only VSP4900-24S and VSP4900-48P - all fixed ports VSP4900-24XE - all fixed ports at 1 Gbps only VIM5-4XE at 1 Gbps only VIM5-4YE at 25 Gbps only |
|
|
VSP 7400 Series |
VOSS 8.0 |
The Auto-Negotiation feature enables the device to switch between the various operational modes in an ordered fashion and lets you select a specific operational mode. The Auto-Negotiation feature also provides a parallel detection (called autosensing) function to recognize compatible devices, even if they do not support Auto-Negotiation and helps the device sense the link speed only; not the duplex mode.
You can use the show interfaces gigabitEthernet l1-config command to see the Auto-Negotiation operational state on a port. The operational state uses the configuration and transceiver type present in the port. If you enable Auto-Negotiation for the port but the transceiver type does not support Auto-Negotiation, the operational state is disabled (false).
Important
The software requires the same Auto-Negotiation configuration on link partners to avoid incorrect declaration of link status. Mismatched configuration can cause the links to stay down as well as unpredictable behavior. Ensure the Auto-Negotiation configuration between local ports and their remote link partners match before upgrading software releases.