With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrIpxSapSFltrName
Virtual Router Ipx Sap S Fltr Name
This attribute specifies the readable name of the service to be filtered from SAP packets. The name can be 47 characters or less. This does not include the caret (^) character which precedes the name. A name preceded by a caret (^) should be interpreted as filtering all SAP packets except for the ones with this name.
Back to Nortel-Magellan-Passport-IpxMIB MIB page.
IPHost Network monitor allows you to monitor vrIpxSapSFltrName on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel switches right now.