KBC Networks WESII User Manual
Page 109
WESII User Manual
Manual-WESII-Rev1403
Copyright © KBC Networks 2014
Page 108 of 140
www.kbcnetworks.com
11.2.2.1 Services: SPANNING TREE PROTOCOL (STP) SETUP
If the WESII topology involves redundant paths where there are loops in the network,
Spanning Tree Protocol (STP) must be enabled. Any node can then be manually set as
the Root Bridge in order to identify which link STP will break. The lower the root priority,
the greater the significance of the link as it pertains to STP. If kept to default
configurations, STP will decide which link is to be broken based on a few variables (which
determine the highest root priority number). If another established link goes down for
any reason, STP will then enable the link that it chose previously to break.
11.2.2.2 Services: PING WATCHDOG
The ping watchdog serves as an option to perform an automatic power cycle if the unit
loses connection to a particular IP address. As soon as the system can no longer ping an
IP on the network under the conditions for which it is set, the unit will reboot. When
enabled the system will begin pinging the IP entered after the given interval and will
function as configured. It must be configured to wait
for a particular number of non-responses (typically five) before rebooting. It will reboot
then try the ping again. In the example below (a picture of the default configurations)
the unit will start to ping 192.168.1.1 after 60 seconds. Each ping can be set to the
desired interval between pings adding to or subtracting from the amount of time elapsed
before failure responses create the need for a reboot.
Note:
the ping watch dog should never be used with a device that obtains its IP via
DHCP, it should only be used with devices using static IP addresses.
The main purpose for a ping watchdog is a quick solution to re-connect the RF link in the
event of interference, a network issue or where some other site specific adverse
condition locks up a Host/AP or Client. Rebooting the device can clear ARP (Address
Resolution Protocol) tables or resolve other network issues that might have forced the
unit to lock up. Rebooting may temporarily solve the issue but may not address an actual
network or other site specific condition. The tool gives the ability to re-establish a
wireless connection and streaming video in the event the unit loses the RF link to its
mate radio. Though this tool limits down time it may only mask the greater
environmental problems at the site. KBC Networks recommends trouble-shooting all
system and connection issues before resorting to the ping watchdog tool.
Note:
If the IP selected is not on the network, is not powered up or some other issue
exists, the unit enabled with ping watchdog will continue to reboot until ping watchdog is