[c-nsp] SLA tracking, what do you ping?

Jay Nakamura zeusdadog at gmail.com
Wed Oct 20 10:14:59 EDT 2010


On a side note, is there a way to ping several IPs and declare it down
if, for example, 2 out of 3 is down?  I am mostly interested in
removing default route via track command.

I read the documentation and couldn't find how you could do that but
sometimes I just have one of those days.

2010/10/20 Ziv Leyes <zivl at gilat.net>:
> Yeah, something like "traceroute.org" which is always answering
> But you better try to get a "closer" IP to ping, one that is reliable and gives you indication of what should be working fine, something like the provider's LNS you're connecting to, or the like
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Heath Jones
> Sent: Wednesday, October 20, 2010 10:23 AM
> To: Jay Nakamura
> Cc: cisco-nsp
> Subject: Re: [c-nsp] SLA tracking, what do you ping?
>
> Just ping 'the internet'... :)
>
>
> On 20 October 2010 02:35, Jay Nakamura <zeusdadog at gmail.com> wrote:
>> When you use IP SLA to track if an upstream is working on a ISP
>> connection (From customer point of view, and you are not the ISP that
>> knows what will be safe to ping), what do you usually configure to
>> ping?  I have found that one hop up from the CPE is not necessary
>> reliable on DSL/Cable.  I was wondering if anyone can share their
>> experience on what works well and what to look out for.
>>
>> Thanks,
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