This morning, has been using normal before start crazy drop, the client cannot use ERP, after inspection, found the router only even ERP and OA server if everything is normal, but as long as on even after the client of the company began to crazy drop, I doubt is a machine in a large number of sending packets to crash the router, I doubt is it possible to consult everybody, what good method can solve the problem, thank you l!
CodePudding user response:
Next level network topology, the holding company level debuggingCodePudding user response:
Don't rule out the possibility of a loop, cisco's line were pulled down to try it,CodePudding user response:
With wirshark caught look, meet frequently dropped with a computer cable, see will receive fake ARP packet gateway,Wirshark if not used, can use kore caught tools,
CodePudding user response:
Check the router logs, see is the result of the reason. Not just caught a look.CodePudding user response:
Next level network topology, the holding company level debuggingCodePudding user response:
This kind of situation I've met, probably the client PC card failure, or bottom pick up the small switches and loop, you can pull out suspicious cables are first, put the test computer switches on ping you in the network a fixed IP, insert the can network switches in succession, once you test the computer can't, then you end up with this line of network may have a question, pull down, network back to normal, it can be concluded that this cable network has fault, continue to screen down, actually this question is will you switch the best solution according to different department division vlan subnet partition to the minimum scope, such a failure after network affected scope will be minimal, but also good some troubleshooting,CodePudding user response:
1 \ if you switch is managed switch, dis or show your port information, see can have abnormal port,2, if it's a fool switches, all pulled out first, then access networks, to determine whether there are abnormal,