Aastra 312w, Руководство пользователя

Страница: 61 / 84

55
Tools for troubleshooting/info
Ping
A ping (small data packet) is used to measure the reliability of a network connection and the reac-
tion time of a server. In using this, an ICMP echo request is sent from the handset to a remote host.
As soon as the host answers, the handset calculates the time elapsed in milliseconds. It will also be
determined if data packages have been lost.
Whilst ping is running, the energy saving mode in the handset will be deactivated. This will facilitate
shorter package round-trip times. In this time a ping can also be carried out on the device from a
remote processor. If the device is in the idle state, external ICMP echo requests will first be answered
after several 100 ms.
E
Press .
F
Select and confirm using .
F
Select and confirm using .
F
Select and confirm using .
F
Select and confirm using .
Enter the IP address and confirm with .
Press or to end the process. Back OK
OK
OK Ping
OK Tools
OK Network
OK System
Menu
Example display:
Above: 16 ttl=64 t=14 ms
xx
= (here 16) sequence number, increases with each
ICMP echo request sent out
ttl = Remaining time to live, starts at 64, is decreased by one
with every router traversed
t = Time from when a request is sent until
the response is received
At the bottom:
tx : Number of requests sent
rx : Number of responses received
loss : Percentage where no response is received
avg : Average measured round-trip time