Packet Traces - NEC UNIVERGE SV9100 System Maintenance Manual

UNIVERGE SV9100 Issue 1.0
Examples:
The UNIVERGE SV9100 IP Phone can successfully ping all devices up to and
including the local router. Anything beyond that point fails. This would suggest that the Leased Line or
remote router has a problem.
O The local PC (192.l68.1.101) can ping all devices except the UNIVERGE
SV9100 IP Phone. The UNIVERGE SV9100 IP Phone can not ping anywhere. This would suggest that there
is a problem with the UNIVERGE SV9100 IP Phone or its connection to the switch/hub.
SECTION 3 PACKET TRACES
It is possible to use a packet trace utility (also known as "Sniffers") to determine what data is being
transmitted and received on an ethernet network. These can be particularly useful to determine the cause of
connection issues or voice quality issues.
The packet trace utility has to be run on a PC that is connected to the same hub (not a switched hub) where
the UNIVERGE SV9100 system or UNIVERGE SV9100 IP Phone is connected.
There are many utilities available that will allow packet trace to be run on a network. One such utility is
Ethereal. This is a software application distributed under a GNU general public license
(www.wireshark.org). This allows the files to be captured and saved in a standard format for analysis later.
A sample trace file is shown in Figure 1-3 Trace File Example on page 1-6.
System Maintenance Manual 5