confused by results of show arp

Hi all,

I am auditing a switch getting ready to be upgraded. Needed to do a show arp of a vlan to see some mac addresses, and found an issue. I have never seen an arp table from HP/aruba show a bunch of zeroed out addresses that shouldn't exist.

Has anyone else seen something like this? None of my other vlans are showing these zeroed out MAC addresses.

​

Aruba2920-01# show arp vlan 30 IP ARP table - VLAN 30 IP Address MAC Address Type Port --------------- ----------------- ------- ---- 192.168.30.1 013b29-616be3 dynamic 1/37 192.168.30.5 015056-bd4b91 dynamic 2/37 192.168.30.10 181373-f7b74b dynamic 1/37 192.168.30.20 d47ed9-f46ab9 dynamic 2/37 192.168.30.21 005156-80171a dynamic 2/37 192.168.30.96 000000-000000 dynamic 192.168.30.97 000000-000000 dynamic 192.168.30.98 000000-000000 dynamic 192.168.30.99 000000-000000 dynamic 192.168.30.100 16feb6-d28eb7 dynamic 2/13 192.168.30.101 16feb6-d28eb7 dynamic 2/13 192.168.30.102 b4b4d9-ecb5ec dynamic 1/23 192.168.30.103 000000-000000 dynamic 192.168.30.104 000000-000000 dynamic 192.168.30.105 000000-000000 dynamic 192.168.30.106 000000-000000 dynamic 192.168.30.107 000000-000000 dynamic 192.168.30.108 000000-000000 dynamic 192.168.30.110 000000-000000 dynamic 192.168.30.111 000000-000000 dynamic 192.168.30.112 000000-000000 dynamic 192.168.30.113 000000-000000 dynamic 192.168.30.114 000000-000000 dynamic 192.168.30.115 000000-000000 dynamic 192.168.30.116 000000-000000 dynamic 192.168.30.117 000000-000000 dynamic 192.168.30.118 000000-000000 dynamic 192.168.30.119 000000-000000 dynamic 192.168.30.120 000000-000000 dynamic 192.168.30.121 000000-000000 dynamic 192.168.30.122 000000-000000 dynamic 192.168.30.123 000000-000000 dynamic 192.168.30.124 000000-000000 dynamic 192.168.30.125 000000-000000 dynamic 192.168.30.126 000000-000000 dynamic 192.168.30.127 000000-000000 dynamic 192.168.30.128 000000-000000 dynamic 192.168.30.129 000000-000000 dynamic 192.168.30.130 000000-000000 dynamic 192.168.30.131 000000-000000 dynamic 192.168.30.132 000000-000000 dynamic 192.168.30.134 000000-000000 dynamic 192.168.30.136 000000-000000 dynamic 192.168.30.137 000000-000000 dynamic 192.168.30.138 000000-000000 dynamic 192.168.30.139 000000-000000 dynamic 192.168.30.140 000000-000000 dynamic 192.168.30.141 000000-000000 dynamic 192.168.30.142 000000-000000 dynamic ------------goes all the way to 192.168.30.254---- 

A show run of vlan 30 shows only the tagged and untagged interfaces and the vlan name.