Hi Pascal,
I checked few of the devices and it seems that limit is 4096.
get arp
usage: 1/4096 miss: 0 <-- One ARp entry out of 4096
always-on-dest: disabled
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IP Mac VR/Interface State Age Retry PakQue Sess_cnt
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10.X.X.X xxxxxxxxxxxx untrust-vr/eth0/0 VLD 455 0 0 2
fw03-> get arp
usage: 4/4096 miss: 0 <-- 4 ARP entries out of 4096
always-on-dest: disabled
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IP Mac VR/Interface State Age Retry PakQue Sess_cnt
-----------------------------------------------------------------------------------------
10.X.X.X xxxxxxxxxxxx os-vr/eth0/0 VLD 725 0 0 0
X.X.X.X xxxxxxxxxxxx os-vr/eth1/2 VLD 1127 0 0 2
X.X.X.X xxxxxxxxxxxx untrust-vr/eth1/3 VLD 247 0 0 2
192.168.1.2 64649bfe5901 trust-vr/eth1/1 VLD 1117 0 0 0
Thanks,
Vikas