etsysOspfExtVirtNbrNumRequests 1.3.6.1.4.1.5624.1.2.65.1.2.5.1.1

The number of LSAs requested from this neighbor for which we are awaiting for a response. This field is incremented when an LSA is requested by sending a LS request packet and is decremented when the LSA arrives in an LS update packet.