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HP 1920 temporary no reply to ICMP request

 
Marco2
Visitor

HP 1920 temporary no reply to ICMP request

I am observing a temporary not reply to icmp request on different switches 1920. Traffic pass through correctly but, for little time, switch not reply to ping request. In fact, IP is associated to Vlan Interface and I noted the issue using ping -t (the not reply could be appears only one time at day). When switch not reply, in the arp table is not present, and after some seconds it appears again and start to reply to ICMP. I tried from some PC and updating firmware not fixed issue. In my network are present many HP switch (2610, 2530, 5500, 1920..) and problem is only on 1920. In lab I could not simulate the issue, switch works properly, connecting this switch in my broad network issue returns.

Any suggestions?

Many thanks in advance

Marco

4 REPLIES
TerjeAFK
Respected Contributor

Re: HP 1920 temporary no reply to ICMP request

We don't have any 1920 switches here, but I have seen this on low-end HP switches before (1800 series for example) where the switch has been under high load and has dropped ICMP packets for a short time. Can you check CPU and memory on the switch when this happens?

Marco2
Visitor

Re: HP 1920 temporary no reply to ICMP request

Thank you for suggestion. CPU is stable around 4% and memory is for 42% used. Issue seems not correlated to memory or cpu high load.

parnassus
Honored Contributor

Re: HP 1920 temporary no reply to ICMP request

Could it be something related to (how fast) ARP Table fills up or related to the ARP aging timer (on the HPE 1920 Switch Series the default arp timer aging is 20 minutes and it can range between 1 and 1440 minutes)?

Marco2
Visitor

Re: HP 1920 temporary no reply to ICMP request

Thank you for suggestion. I already tried to change arp entry from dynamic to static for server monitor but issue was still present.