Allied Telesis AT-WR4500 manual SystemWatchdog, Hardware Watchdog Management

AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers	253
RouterOS v3 Configuration and User Guide

Testing fail over

Now, when we will disconnect the master router, the backup one will switch to the master state:

[admin@AT-WR4562] ip vrrp> print

Flags: X - disabled, I - invalid, R - running, M - master, B - backup

0RM name="vrrp1" mtu=1500 mac-address=00:00:5E:00:01:01 arp=enabled

interface=local vrid=1 priority=100 interval=1 preemption-mode=yes authentication=none password="" on-backup="" on-master=""

[admin@AT-WR4562] ip vrrp>

11.2SystemWatchdog

11.2.1General Information

Summary

System watchdog feature is needed to reboot the system in case of software failures.

Specifications

Packages required: system

License required: Level1

Submenu level: /system watchdog

Standards and Technologies:

Hardware usage: Not significant

11.2.2Hardware Watchdog Management

Submenu level: /system watchdog

Description

This menu allows to configure system to reboot on kernel panic, when an IP address does not respond, or in case the system has locked up. Software watchdog timer is used to provide the last option, so in very rare cases (caused by hardware malfunction) it can lock up by itself. There is a hardware watchdog device available in AT-WR454x hardware, which can reboot the system in any case.

Property Description

auto-send-supout(yes no; default: no) - after the support output file is automatically generated, it can be sent by email

automatic-supout(yes no; default: yes) - when software failure happens, a file named "autosupout.rif" is generated automatically. The previous "autosupout.rif" file is renamed to "autosupout.old.rif" no-ping-delay(time; default: 5m) - specifies how long after reboot not to test and ping watch-address. The default setting means that if watch-addressis set and is not reachable, the router will reboot about every 6 minutes.

send-email-from(text; default: "") - e-mail address to send the support output file from. If not set, the value set in /tool e-mailis used

send-email-to(text; default: "") - e-mail address to send the support output file to

send-smtp-server(text; default: "") - SMTP server address to send the support output file through. If not set, the value set in /tool e-mailis used

watch-address(IP address; default: none) - if set, the system will reboot in case 6 sequental pings to the given IP address (sent once per 10 seconds) will fail

none - disable this option

watchdog-timer(yes no; default: no) - whether to reboot if system is unresponsive for a minute