Hello
I'm deploying a solution with Netgear swtiches.
It consists of core, aggregation and access switches.
Core is set up a layer-3 with ip routing and vlans across the network. Aggregation and access is layer-2. Trunking as also set up correctly.
I'm having an random issue with the less "chatty" host devices that suddenly aren't able to be pinged.
I can only ping these devices from the core or on their own vlan.
Every time this happens i can log onto the core swtich, ping the ip of the device and then it's accessible from everywhere.
All the swiches are on vlan 1. Now the ARP table on the core is missing a couple of the access layer swtiches. If i ping one from the core it's back in the ARP and accessible again.
When a host isn't reachable it's missing from the core ARP table, but it's in the mac-addr-table.
It's exactly the same problem as described here: https://community.cisco.com/t5/switching/core-switch-not-generating-arp-requests-in-response-to-ping/td-p/4117633
This is driving me nuts. Either I've configured something wrong or there is a bug in the SW on the core swtich.
Any ideas?
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