With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
bgpPathAttrInterASMetric
bgp Path Attribute Inter Autonomous System Metric
1.3.6.1.2.1.15.5.1.6
The optional inter-AS metric. If this attribute has not been provided for this route, the value for this object is 0.
Back to BGP4-MIB MIB page.
IPHost Network monitor allows you to monitor bgpPathAttrInterASMetric on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.