6509 - 1 No. with Sup-II of 2 No. standby also 3750(3 switchez stacked) hsrp configured. 22 VLANs are there configured & working for the past 2 yrz with no probz. since sterday after when i ping to the local gateway from any of the VLAN or any ip address from 1 vlan to other VLAN, once in every 20-30 ping reply, i get request timed out. if there is a loop, then it will affect only 1 particular VLAN, bcoz i hav already experienced such probz long time back, but this probz i am not getting any idea what could be, bcoz if i ping from the any vlan to other vlan i get request timed out, even when i ping my own gateway also i get request timed out, any help would be highly appreciated.
CPU,Back plane traffic is normal, any other trouble shooting method do i need 2 follow for identifying?