Ubiquiti AirRouter User Manual

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Ubiquiti AirRouter User Manual Manual pdf 29 page image

27Ubiquiti Networks, Inc.Chapter 3: AirOS™AirRouter User GuideTraffic ShapingWireless Traffic shaping is dedicated to upstream anddownstream bandwidth control while looking from theclient (connected on the Ethernet interface) perspective.The traffic can be limited at the AirRouter in the uploadand download direction based on a user defined rate limit.This is layer 3 QoS.Enable Traffic Shaping This option will enablebandwidth control on the device.• Incoming Traffic Limit Specify the maximumbandwidth value (in kilobits per second, Kbps) for trafficpassing from the wireless interface to the Ethernetinterface.• Incoming Traffic Burst Specify the data volume (inkilobytes) to which the Incoming Traffic Limit will not beeffective afterwards data connection is initiated.• Outgoing Traffic Limit Specify the maximumbandwidth value (in kilobits per second, Kbps) for trafficpassing from the Ethernet interface to the wirelessinterface.• Outgoing Traffic Burst Specify the data volume (inkilobytes) to which the Outgoing Traffic Limit will not beeffective after data connection is initiated.ServicesThe Services tab covers the configuration of systemmanagement services SNMP, SSH, System Log and PingWatchdog.Ping WatchdogPing Watchdog sets the AirRouter to continuously pinga user defined IP address (it can be the Internet gatewayfor example). If it is unable to ping under the user definedconstraints, the AirRouter will automatically reboot. Thisoption creates a kind of “fail-proof” mechanism.Ping Watchdog is dedicated for continuous monitoringof the particular connection to remote host using thePing tool. The Ping works by sending ICMP “echo request”packets to the target host and listening for ICMP “echoresponse” replies. If the defined number of replies is notreceived, the tool reboots the device.Enable Ping Watchdog Enables the Ping Watchdog tool.• IP Address To Ping Specify the IP address of the targethost which to be monitored by the Ping Watchdog tool.• Ping Interval Specify time interval (in seconds)between the ICMP “echo requests” are sent by the PingWatchdog Tool. The default value is 300 seconds.• Startup Delay Specify initial time delay (in seconds)until the first ICMP echo requests are sent by the PingWatchdog tool. The default value is 300 seconds.The value of Startup Delay should be at least 60 secondsas the network interface and wireless connectioninitialization takes a considerable amount of time if thedevice is rebooted.• Failure Count to Reboot Specify the number of ICMPecho response replies. If the specified number of ICMPecho response packets is not received continuously, thePing Watchdog tool will reboot the device. The defaultvalue is 3.SNMP AgentSimple Network Monitor Protocol (SNMP) is usedin network management systems to monitornetwork-attached devices for conditions that warrantadministrative attention. The AirRouter contains an SNMPagent which allows it to communicate to SNMP manageapplications for network provisioning.