04-20-2010 04:33 AM - edited 07-03-2021 06:44 PM
Hi,
I have several AP´s working with WLC 4400 series. The workstation with Cisco PCI wifi cards detect high latency when I ping several servers. It´s strange because always is the same patrol of high latency. Each 20 sec 3 peaks of high latency in all workstation in differents areas. below sample. I wired connected the workstation and I don´t get high latency, only on wireless
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time=1ms TTL=126
Reply from 10.137.221.22: bytes=32 time=100ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time=18ms TTL=126
Reply from 10.137.221.22: bytes=32 time=111ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time=34ms TTL=126
Reply from 10.137.221.22: bytes=32 time=127ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Reply from 10.137.221.22: bytes=32 time<1ms TTL=126
Thanks in advanced
04-20-2010 04:39 AM
I add that the ping is from worstation connected with wireless to other server connected to other SW. There are not firewall.in the middle just 2 routers with HRSP
I also launch ping to other server in the same network with the same high latency
Model of AP AIR-LAP1242AG-E-K9 with 2.4 Ghz
I ping from Cisco SW to server and I get normal latency
04-28-2010 02:50 AM
Any Help? I can provide further info
Thanks in advanced
04-28-2010 07:16 AM
Hi, only a idea but is the power save mode set to CAM on the adapter so the WLAN card isn't going to "sleep"
Was that working before without the delay peaks or is that a new issue?
Kind regards,
Ron
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