[AusNOG] Monitoring ULL drops on AAPT MBE connections

[Paul Gear]

I'm generally a bigger Linux fanboi than the next guy, but I don't 
consider this adequate for determining whether a line is sound.  It 
needs real stats like uptime, retransmits, CRC errors, etc.

On 04/03/2014 09:31 AM, Luke Iggleden wrote:
> If you have access to run a command over SSH you could setup nagios or 
> some monitoring software to exec a ssh command on a remote server/client:
>
> wget -O /dev/null http://some.host.in.your.dc/file.100MB.bin
>
> in the early hours of the morning when you know there is no traffic on 
> each client, if the script doesn't return within x amount of seconds 
> then its running suboptimal, email from monit back to create a ticket 
> for someone to investigate.
>
> Would need some tuning for each client depending on the speed of the 
> original deployment.
>
> Just a thought.
>
> Cheers,
>
> L
>
> On 3/04/2014 10:19 am, Joshua D'Alton wrote:
>> There was a thread recently on this. Think the conclusion was, basically
>> if the service is provider-NTU, you're stuffed.
>>
>>
>> On Thu, Apr 3, 2014 at 10:07 AM, Radek Tkaczyk <radek at tkaczyk.id.au
>> <mailto:radek at tkaczyk.id.au>> wrote:
>>
>>     Hi Guys,____
>>
>>     __ __
>>
>>     We are getting more and more cases where an AAPT MBE connection
>>     drops a ULL, and no-one notices this until the client complains
>>     about poor speeds, or another ULL drops and takes the connection
>>     offline.____
>>
>>     __ __
>>
>>     For example, say an end user has an AAPT 10/10 MBE connection which
>>     uses 2 x ULLs. If one of the ULLs drops, the speed will drop to
>>     around 5/5 and everything keeps going at the lower speed. This is
>>     all fine, except that AAPT do not correct the issue until you log a
>>     fault. Or worse, the second ULL drops at a later time and takes the
>>     connection completely offline.____
>>
>>     __ __
>>
>>     How are we supposed to log a fault if we can’t monitor for a ULL
>>     connection getting dropped?____
>>
>>     __ __
>>
>>     How are other people handling this situation?____