I was running the port mapper tool on an Avaya VSP 4000. I find that the ports are being displayed correctly along with interface index, name, admin state and oper state. I however find the IP, MAC, VLANs, VLANforMAC fields are blank even though the switch has ARP entries for those ports. Could you please let me know what may be causing this also what are the MIBs that need to work correctly for these fields to be displayed correctly, I tried querying the MIB ipNetToMedia (1.3.6.1.2.1.4.22) and that is working fine. I believe this is the MIB that corresponds to the fields that aren't working. Could anyone please suggest some reasons and solutions.
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