Toshiba GR200 Series Instruction Manual page 535

The user should note that the use of network monitoring could increase the burden
on the network. This is because a number of PING packets are repeatedly transmitted
over the network. Thus, the user should choose the setting values carefully in
accordance with the network capacity, the burden, and the required time. Examples
1 and 2 below show the respective results using the network monitoring function with
for different settings.
Example1: There is a remote device on the network with the address Ping_IP1.
The Hot-standby function sends ping packets to the remote device every five
seconds; then the Hot-standby function waits for one second until the Hot-
standby function receives a response signal from the remote device. The Hot-
standby function will determine that a communication failure has occurred if two
sequential response signals are not received from the remote device. Subsequently,
the Hot-Standby function will switch from one port to the other port (See Figure
10.2-3). The following settings are required in this example 1:
The IP address of the remote device1 is set for setting [Ping_IP1]. (the setting of
・
IP addresses in the other remote devices is not required.)
One second is set for setting [Ping_Wait].
・
Number "5" is set for [Ping_Interval].
・
Number "2" is set for [Check_Count].
・
same IP address. The user can set the number of
responses required to determine the "no-response"
condition using the setting [Chk_Count].
- 521 -
6F2S1931 (0.20)
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)