Hi all,I have a connection connected a Cisco router and a Juniper Router. After I setup a MRTG server to monitor the interfaces of both routers. I found the MRTG show the traffic utilization is different. The utilization of Cisco seems higher than th...

Hi all,One of my router prompt out below message in every minute. Anyone faced it before and any solution.Apr 28 10:03:44: %SYS-2-CHUNKBADMAGIC: Bad magic number in chunk header, chunk 0 data 61D28528 chunkmagic D0D0D0D chunk_freemagic D0D0D0D-Pro...

Hi all,I have 2 x 3750 stack together and the ios version of them is 12.2(25)SE. I am going to upgrade the IOS. I have upload the IOS to the switch's flash, but I don't know how to make the 3750 load the new IOS after reload. I have checked the link ...

Hi all,I want to ask that if a Catalyst's port are setup to be authenticate by external radius server, can the radius server know which Catalyst port/interface ask for authentication?

Hi,I am going to setup MPLS between some Cisco routers, switchs and Juniper routers. Is there anything need to pay attention to?Thanks!