With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcsDiscoveryInvalidateCache2k
Cisco Fabric Configuration Server Discovery Invalidate Cache2k
1.3.6.1.4.1.9.9.297.1.1.8
A bitmap which represents VSANs from 1 to 2048. The discovered cache will be invalidated on those VSANs for which the corresponding bits are set to 1 in this object. If the bit corresponding to a particular VSAN is set to 1 and if the value of fcsDiscoveryStatus for that VSAN is 'completed', then the discovery cache on that VSAN will be invalidated and the fcsDiscoveryStatus object for that VSAN will be set to 'databaseInvalid'.
Back to CISCO-FCS-MIB MIB page.
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