★★(O&M communication) Have you ever met this troubleshooting scenario?★★

Troubleshooting is always annoying.

 Maybe you are a device maintenance expert. Share your experience with us.

 The following attachment contains some troubleshooting cases. Once you reply this post for the following three questions, you are possible to be awarded a title of Annual GS Contributor.

1. Which cases are useful in the attachment?

2. Which cases seldom occur in the attachment?

3. Would you please share your experience in troubleshooting access network devices?

Dear Admin:

Pls provide the prize details also....

The honor is great, I appreciate it!

The case of troubleshooting the failure to access the internet is very useful to me.

Dear Cherry,

PLease find my answer below:

1. Which cases are useful in the attachment?

Answer: I think System fault handling section is more useful.

2. Which cases seldom occur in the attachment?

Answer: a)Card reset

             b) port faulty.

             c) BFD session down.

             d) VRRP not working.

            e) ARP refresh problem

3. Would you please share your experience in troubleshooting access network devices?

Answer:  Last time We found that 1 RNC  throughput of our Network is very low than last week.

after troubleshooting, we found that there was transmission flip flop in OSN path & our RNC service VRRP status can not be recovered as in  RNC part it was non revertive mode & in aggregation swicth it was revertive mode.

Later we changed RNC VRRP mechanism as revertive mode & it was okay.

Thanks for you reply.

If you can share some experience would be better.

Hi aamallik,

Thanks for your sharing.

It is certainly helpful to others. If you have other experiences can also post here:)

1. Which cases are useful in the attachment?

....Trouble shooting

2. Which cases seldom occur in the attachment?

.....Frequent CM Online and Offline Due to a CM Fault,Troubleshooting a Low Internet Access Rate,Failure to Access the Internet etc.

3. Would you please share your experience in troubleshooting access network devices?

....will share later.

Hi shisir,

Thanks for you reply. Im waiting for your sharing.

1. Which cases are useful in the attachment?

Ans. I think Troubleshooting Internet Service section is more useful.

2. Which cases seldom occur in the attachment?

Ans. Hard Ware Faulty, port faulty, Transmission Path Faulty, BFD session down, VRRP problem etc.

3. Would you please share your experience in troubleshooting access network devices?

Answer:  During 3G launching time We found that one aggregation point switch is affected due to VRRP count overloading. At that time our roll out was hampering, later we re-design IP addressing for Node-B in MW cluster & OF node. Thus the problem was solved.