Polycom 6400-S User Manual

User Guide V

2

IU 6400-S Converged Network Appliance

3 - 6

Link Status displays the status of the Ethernet connections. Ethernet auto 

negotiation is often unreliable, especially between different vendors or old and 

new networking equipment. Failure of auto negotiation is generally not a 

cause for concern. However, if the negotiated rates change intermittently, or 

the link is down or there is no link, the link rate may need to be set manually 

on the Set Link Rate page. Intermittent data and voice outages may be caused 

by auto negotiation "flutter". Setting the link rate manually is recommended 

and ensures that the device at the far end of the connection will not renegotiate 

rates during VoIP operation. 

The specific status and configuration information for the system interfaces is 

displayed in the Interface Information section. The MAC address of interface 

eth0 is needed to retrieve the VoIP ALG License Key if the license information 

is lost. 
The interface statistics can point to areas of congestion in the network. If the 

errors statistic increase during normal operation of the device, it may be an 

indication of excessive congestion on the network interface. If the congestion 

is not corrected, the quality of voice calls will be affected. The topology of the 

network attached to the network interface with the errors should be examined 

and modified to better segment and isolate network traffic. See 

 on 

.

You can view a variety of information about the network from System 

Information in the System menu. System Information displays detailed 

information regarding the operating system running on the 6400-S. Customer 

support may ask you to examine or forward this information when 

troubleshooting problems with the 6400-S. 

In the navigation bar, select System.