Hello House, Awz the Networks at ur side of th world? Pals, I have a slight challenge on my network on of my Border Routers for INternet Traffic. The Fast Ethernet Always 'Freeze' technically. (The Status and Protocol is always UP-UP), but I can not connect to the next hop, thus loose connectivity to the internet. All I do to solve this problem is simply to shut the interface and bring it back up, with the 'shut' and 'no shut' command. The frequency occurennce is increasing by the day. My team and I and suggesting we change the Interface card, but I fear the problem might still persist. I hope to hear your opinion, suggestions and pieces of advise.
I did a Sh Ip int for the said interface when it frooze and after I brought it back up
Re: FA0/0 Always Freezing with status and protocol up
As per your query, I understand you have a border router which is connecting to internet by fa0/1 interface and every time the status and protocol is up after the link goes down then also you can see the status and protocol is up.
This is because of fa0/1 is connecting to some switch of ISP and the link failure is not in between fa0/1 and that switch. The link failure may be happened after that switch. That time fa0/1 will be up , since the connected interface is not down.
but here you can verify by routing protocol , Suppose you have BGP or any dynamic routing protocol the neighborship will be down as the link fail.
Interface will not show down till the next hop switch will go down...
here is diagram which will help you for understanding...
Router fa0/1------> ISP switch ---------> POP -----------> CORE-------> INTERNET
in this network till the time your ISP switch is up your interface will be up, your other end IP will be configured on POP or CORE.
So you can't ping the other end IP but then also your interface is up..
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