[AusNOG] Monitoring ULL drops on AAPT MBE connections

[Radek Tkaczyk]

Hi Guys,

Good option of running the wget, but not an option for all cases since it's usually just the 10/10 connection and a Cisco router that we provide (or whatever the speed is).

I'm aware that you can have it drop the entire link when a single ULL fails, but that defeats the purpose of having multiple ULLs there for some sort of ULL redundancy.

Any official word from any AAPT reps on what we should do here? Robert?

Regards,

Radek
Ph: 0413 383 231
radek at tkaczyk.id.au


-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Paul Gear
Sent: Thursday, 3 April 2014 9:36 AM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Monitoring ULL drops on AAPT MBE connections

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?____

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