RADVision VIU-323, User Manual

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Analyzing Problems
9-3
2. Run the Ping command, using the gatekeeper’s IP address as the destination.
! If connectivity seems good and round trip delays are consistent, go to the next
topic.
! If connectivity is absent (the ping fails) or if connectivity regularly fails during a
short run, the network is at fault. Similarly, if the round-trip delay jumps around
substantially (more than a factor of 3), a network problem is likely.
Sending a Ping Command from a PC to a VIU-323
You send a Ping command from a Windows PC to a VIU-323 to see if the VIU-323 is
properly connected to the LAN.
"
To send a Ping command
1. On the Windows PC, from the Start menu, select Run (alternatively, select
Programs/Command Prompt or Programs/MS-DOS prompt ).
2. In the window that opens, type Ping followed by a space and the IP address of the
VIU-323 you want to check (for example,
Ping 123.30.80.48
).
! If a series of “Reply from…” messages appears on the screen, the VIU-323 is
connected. In this case, type
Exit and press Enter to close the window.
! If timeout messages appear on the screen, the VIU-323 is not connected. In this
case:
a. Check the physical connection of the LAN cable between the VIU-323 and
the LAN hub (and the PC’s connection to the LAN hub).
b. Check the VIU-323’s IP address.
c. Send another ping. If the second ping is also unsuccessful, you must redefine
the VIU-323’s IP address .
d. Type Exit and press Enter to close the window.