Chapter 4 Troubleshooting and Diagnostics IPmux-1/1E Installation and Operation Manual
4-14 Performance Monitoring and Troubleshooting Statistics
Table 4-4. LAN Statistics Parameters Parameter Description
MAC Address MAC address of the local port.
Mode Port mode is set either manually or via the auto-negotiation mode (under LAN configuration screen).
Note: When auto-negotiation protocols do not support each other, this will degrade the connection to a half-duplex mode.
In order to avoid this, auto-negotiation should be disabled and the ports should be configured/forced manually. Half-duplex degradation will occur also when
auto-negotiation is enabled at one port and disabled at the opposite port.
Rate (Mbps) Port rate is set either manually or via the auto negotiation mode.
Status Link status: Connected = Normal operation.
Not connected = Ethernet Link loss
Frames Received
Correct Frames The number of frames successfully received. When a valid connection is established the number should increase steadily.
Correct Octets The number of octets successfully received. When a valid connection is established the number should increase steadily.
Alignment
Errors
The number of frames received that are not an integral number of octets in length (RFC 1643). All frames should end on an 8-bit boundary, but physical
problems on the network could cause the number of bits to deviate from the multiple of eight.
Recommendations:
Check physical connections, devices and configuration.
FCS Errors Counts the number of frames received that do not pass the FCS check (RFC 1643). An FCS check is a mathematical way to ensure that all the frame bits are
correct without the system having to examine each bit and compare it against the original.
Recommendations:
Check for physical problem such as hardware problem, or a bad line, or noisy environment.