High respons times
I just turned on an alert for high response times on my network and I'm getting alot of alerts for high ping times. What could be causing this? It's probably different reasons for different things but what should I start checking to troubleshoot this. I'm getting high ping times on routers, switches, and servers.
Matt V
What constitutes a high ping time for you alert? Are we talking 300ms or 3 seconds?
ASKER
anything above 25 ms I get an alert for. I'm seeing most of them between 50 and 150ms. I've seen it as high as 700ms.
What kind of connections are between the affected hardware? Is it all on a 100MBps or 1GBps network?
ASKER
both
ASKER
any ideas?
Do you have a lot of traffic routing through one 100Mbps connection somewhere?
ASKER
No, its a large network with alot of connections. I'm not getting any utilization problems in my alerts right now
Any chance you have a switch loop somewhere, where a switch is connected into the fabric twice. Might be a spanning tree issue.
ASKER
its possible. is there an easy way to check for a loop? most of them are in remote sites. how do I check for a spannin tree issue?
So are these ping time issues between remote sites are all within a local site?
If they are between remote sites, what kind of link is between the sites.
If they are between remote sites, what kind of link is between the sites.
ASKER
it is both remote sites and local sites. The remote sites are using MPLS circuits.
So if I am understanding correctly,
1. The local sites pinging locally have latency
2. Pinging between remote sites has latency
Is there a common device all of this traffic is going through?
1. The local sites pinging locally have latency
2. Pinging between remote sites has latency
Is there a common device all of this traffic is going through?
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