I was wondering if it was possible to daisy chain all the ports (with a hard loop on the last port) on the FMEC E3/DS3 and create circuits between the looped ports in order to perform BER testing on all the E3 ports.
I set that up and connected my test set, but when start sending a signal I end up getting a LOF alarm.
Does anyone have any ideas on what my problem may be and how I would go about performing my test for all the E3 ports?
Re: Cisco ONS 15454 E3-12 & E3/DS3 loopback testing
Well, there is some info that is needed. What software version are you running? How are the circuits built? In one place you say they are daisy-chained and in another you say the circuits are looped.
I am not familiar with the E3 as we just use DS3s, but here is what I have done.
First, daisy chain the circuits on the backplane (1 out -> 2 in, 2 out -> 3 in, ... , 11 out -> 12 in). Then put an external loop on all 12 ports using CTC (Card view > Maintenance tab > Loopback). The test set output connects to port 1 in and the test set input connects to port 12 out. You should be able to run your test then.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...