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ICMP Latency on 2910al

 
Fret92
Occasional Visitor

ICMP Latency on 2910al

Hello people,

 

I have many procurve switch in my company and  all 2910al model have some latency when i send a ping between 2 2910 switch directly connected

 

I see this problem just on 2910 al switch and the configuration is approximatively the same of other switch like 3500 2524, 2610.

 

I have try many ICMP destination 8212zl, 5406, 2910 and other but i have a latency with these devices (3 5 ms) when i have 1ms with all other switch

 

Can you explain me the reason of this latency if you have a reason :) or have you a solution for this ? i have updated with the last version but result it's same

 

Thanks in advance for your help

 

Fret

 

 

 

2 REPLIES 2
Fret92
Occasional Visitor

Re: ICMP Latency on 2910al

I have check and apparently this switch model have bad response time between 2 2910al switch but good response time when i send ping to a computer plugged on a switch to another computer plugged on another switch

Arimo
Respected Contributor

Re: ICMP Latency on 2910al

Hi

 

Management traffic towards the switch in general has the lowest priority. This is a design question, responding to ping requests promptly is the least important thing for the switch CPU to do. Here's an explanation:

 

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=51081&prodTypeId=12883&objectID=c03251146

 

When ICMP traffic is being passed through the switch it's handled the same way as any other LAN traffic, on the hardware, without involving the switch CPU.


HTH,

Arimo
HPE Networking Engineer