Review: Agere ORiNOCO AS-2000, part 3
If you're entering the Wi-Fi world and concerned about security or session accounting, take a good look at the ORiNOCO AS-2000. This platform overcomes wireless administration, security, and accounting issues by leveraging existing elements of your network. Now that we've evaluated and installed the device, we examine how it handles monitoring. Last of a 3-part series.
Monitoring
The AS Manager can be used to monitor the AS-2000, primarily using SNMP GETs and TRAPs. The Monitoring and Diagnostics menu retrieves MIB-II counters for the interfaces table, IP, ICMP, ARP, TCP, UDP, and SNMP. For example, the interfaces table will include established PPP sessions. (Click on image to enlarge.)
Admins can drill down to individual session stats using the PPP monitor (Click on image at right to enlarge.) . Here, one can see the dynamic IP address assigned to each NIC (MAC address).
To diagnose problems, use the Remote Link Test monitor (left). Like Link Test in the Client Manager, this monitor evaluates signal strength and quality between the AS-2000 and a test station. The main panel lists all radios broadcasting with the same network name as the AS-2000, with and without an active AS Client session. Select a station to initiate a test -- results can be logged on-demand or at a specified interval.
The AS Manager also listens to incoming SNMP TRAPs (right). This is mostly useful to detect system-level events, like a yanked power cord (coldStart) or Ethernet cable (linkDown). The detail for PPP events is minimal -- if you need to monitor session activity, see your RADIUS server log. In a production network, we would forward AS-2000 TRAPs to an EMS for persistent storage, severity-based email/pager notification, etc.. An HP OpenView plug-in is available (untested).
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