Recently I observed one wiered ping response in my LAN. When I ping one of my local DNS server from my laptop I get a latency of 12 - 15 ms and to my surprise this response is approximately 12ms and 1ms alternatively. When I ping this server from one of my local cisco switches I get pretty fine results of <2ms average latency. If you have faced this thing and know the reason kindly let me know..... I'm getting this <12-15ms latency on approx every network resource like printer, other laptop etc. When I ping them through switch they respond with <2ms latency.
Thanks and regards,