HP 5940 is not doing ARP

[MrMIkeNez]

Weird situation

The switch is configured with VLAN interfaces - nothing fancy. No matter what I do - I cannot see any ARP generated by the switch to resolve any IP under the VLAN. Once I do enter the entry manualy - all is working .

If traffic is generated first from  the LAN host - the entry in the ARP table is fullfilled.

Latest version of software in place 

[sdide]

Hey.

Sounds strange.

have you tried debugging arp on the switch?

Check your timer and see how long it is. Wait for the timeout with debugging enabled and check the messages.

>display arp timer aging 
 Current ARP aging time is 1200 seconds
>
>debugging arp entry
>debugging arp packet
>debugging arp active-ack
>debugging arp fast-reply
>debugging arp error

you should see stuff like

ARP/7/ARP_SEND: Sent an ARP message, operation: 1, sender MAC: <mac-switch>, sender IP: <ip-switch>, target MAC: <mac-host>, target IP: <ip-host>
ARP/7/ARP_RCV: Received an ARP message, operation: 2, sender MAC: <mac-host>, sender IP: <ip-host>, target MAC: <mac-switch>, target IP: <ip-switch>
ARP/7/ARP_ENTRY: ARP entry status changed: MAC address: <mac-host>, IP address: <ip-host>, AGING -> NO_AGE

Regards.