#9 Viper_SC_Manual_
001-5008-000_Rev12e.docx |
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A PER value shows a question mark ("?") when the unit cannot compute it. This can be due to no packets being received or
to the received packets not including a sequence number. The later is due to the "OIP duplicate packet removal" feature
being disabled.
Transmitted Packets.
The number of IP packets transmitted on the RF interface (good and bad packets) to the remote unit
(unicast or broadcast). A packet is bad (failed) if we did not receive a notification from the remote unit of the arrival of the
packet. The transmit Packet Error Rate (PER) is calculated with the this formula: per = (bad/(bad+good))*100
A PER value shows a question mark ("?") when the unit cannot compute it, either due to the “RF ACK" feature being
disabled on this unit or to the fact that no packet has yet been transmitted.
RSSI.
The last Received Signal Strength Indicator (RSSI) from the given remote unit. Each time a new packet is received from
the remote unit, the RSSI in this table is calculated and updated.
SNR.
The last Signal to Noise Ratio (SNR) from the given remote unit. Each time a new packet is received from the remote
unit, the SNR in this table is calculated and updated.
4.7
MAINTENANCE
From the navigation frame, select
Maintenance
to access:
Ping Test (see Section 4.7.1)
Config Control (see Section 4.7.2)
Package Control (see Section 4.7.3)
Net Tests (see Section 4.7.4)
RF Tests (see Section 4.7.5)
Feature Options (see Section 4.7.7)
4.7.1
PING TEST
The ping command is a network tool used to test whether a particular host is reachable on the IP network. It works by
sending an ICMP packet (echo request) to a target host and listening for the ICMP echo response. Ping estimates the round
trip time (in ms) and records any packet loss.
Enter IP Address
and press
EXECUTE
.
Allow up to 20 seconds to handle slow
or non-responding targets.
Figure 59 – Maintenance/Ping Test
