ZyXEL P-870H-53A v2 User Guide - Page 226
The General Diagnostic Screen
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Chapter 24 Diagnostic • Loopback test - checks if the MEP port receives its Loop Back Response (LBR) from its target after it sends the Loop Back Message (LBM). If no response is received, there might be a connectivity fault between them. • Link trace test - provides additional connectivity fault analysis to get more information on where the fault is. If an MEP port does not respond to the source MEP, this may indicate a fault. Administrators can take further action to check and resume services from the fault according to the line connectivity status report. 24.3 The General Diagnostic Screen Click Maintenance > Diagnostic to open the screen shown next. Ping and traceroute help check availability of remote hosts and also help troubleshoot network or Internet connections. Figure 141 Maintenance > Diagnostic > General The following table describes the fields in this screen. Table 89 Maintenance > Diagnostic > General LABEL DESCRIPTION TCP/IP Address Type the IP address of a computer that you want to ping in order to test a connection or trace the route packets take to. Ping Click this button to ping the IP address that you entered. Traceoute Click this button to perform the traceroute function. This determines the path a packet takes to the specified host. 226 P-870H/HW Series User's Guide