I am facing this problem on different switches on my network on different days, the thing is that the switch is working fine and none of the users is facing in connection problem ,but I can not reach my switch (ping and telnet)from anywhere (core switch, normal PC) and this issue will last for 20:30 mins and then going to a different switch.
I really appreciate if someone tells me what is going on.
There is not much detail here to work with. Based on the little bit that we know I would offer these suggestions:
- is it possible that two devices are configured with the same IP address resulting in IP address conflict where sometime you get to one and sometimes to the other?
- is it possible that there is some spanning tree issue that sometimes makes the switch management address unreachable?
- is it possible that there is some issue with ARP finding the MAC address of the management IP?
