I have a Nagios installation running on a PIII with maybe 512 MB of RAM.
I ping a couple hundred devices 5 times per minute and have an alarm threshold
of no response for 3 minutes which sends an e-mail.
The same device also checks about 900 services among those 200 devices mostly
every minute
On Sat, 15 Dec 2018 at 18:52, Stephen Satchell wrote:
> Short answer: about 1500 bits of bandwidth, and the CPU loading on the
I can't parse this.
1000 hosts at 1 pps would be 672kbps on ethernetII encapulation with
minimum size frames.
--
++ytti
On Sat, 15 Dec 2018 12:20:01 -0700, Raymond Burkholder said:
> Another aspect is congestion. Large uploads or downloads can cause
> packet loss (including dropping the pings with which you are testing).
> Therefore management packets such as these could be marked and
> processed, on your side
On 2018-12-15 11:32 a.m., Colton Conor wrote:
The problem I am trying to solve is to accurately be able to tell a
customer if their home internet connection was up or down. Example,
customer calls in and says my internet was down for 2 minutes
yesterday. We need to be able to verify that
On 12/15/18 12:03 PM, Saku Ytti wrote:
> On Sat, 15 Dec 2018 at 18:52, Stephen Satchell wrote:
>
>> Short answer: about 1500 bits of bandwidth, and the CPU loading on the
>
> I can't parse this.
>
> 1000 hosts at 1 pps would be 672kbps on ethernetII encapulation with
> minimum size frames.
>
Mike have you looked at Packetlight? Long-haul is mostly jumping to 100 or
even 400g coherent.
-Ben
> On Dec 15, 2018, at 8:53 AM, Mike Hammett wrote:
>
> FS had one, but it's not on their site anymore.
>
>
>
> -
> Mike Hammett
> Intelligent Computing Solutions
>
> Midwest Internet
I haven't.
Sure, but the equipment still does smaller channels. Going to 100G or 400G for
just over 10G seems silly.
If Equinix had reasonable cross connects, I'd just LAG 10Gs. The cost of a pair
of Equinix cross connects isn't much less than the 10G wave. Thankfully I'm
only in one
Hi
Customers do not usually complain about 2 minutes of downtime unless it is
a repeating event. We will therefore offer such customers to put their line
on monitor mode, which means we will add them to smokeping. You could also
start the ping once a second thing, which would be no problem if it
Hi Mel,
I already checked Archive.org - it holds two previous copies.
>> lets you download each version of the list that archive.org noticed
changed
According to Archive.org's own Note this seems to be inaccurate:
This calendar view maps the number of times
Hi everyone,
In order to sanitize historical BGP data I would like to use historical
Bogon lists. The CIDR report generates those lists on a daily basis
(e.g. https://www.cidr-report.org/bogons/freespace-dec.txt for prefixes)
but, as far as I know, it does not keep a history of those files -
Lars,
Archive.org has snapshots going back several year. Just feed in the URL you
posted, ad you’ll get a history that lets you download each version of the list
that archive.org noticed changed. In my experience, that is pretty
comprehensive.
-mel beckman
> On Dec 15, 2018, at 12:31 AM,
heh, cross connects are indeed a major issue. I have a need for > 10G
transport. My equipment supports 40G. The carriers aren't terribly interested
in doing 40G transport (at least not at a reasonable price, one quote was over
4x a 10G). 100G-capable switches cost too much. Equinix charges as
On Fri, Dec 14, 2018 at 02:19:10PM +, Graham Johnston wrote:
[snip]
> While doing this I was using the nlnog IRR explorer website and
> found that a company that I peer with on a public exchange has my
> ASN listed in an as-macro that they control. The way the as-macro
Being listed in an
On 15/Dec/18 12:44, Mike Hammett wrote:
> heh, cross connects are indeed a major issue. I have a need for > 10G
> transport. My equipment supports 40G. The carriers aren't terribly
> interested in doing 40G transport (at least not at a reasonable price,
> one quote was over 4x a 10G).
How much compute and network resources does it take for a NMS to:
1. ICMP ping a device every second
2. Record these results.
3. Report an alarm after so many seconds of missed pings.
We are looking for a system to in near real-time monitor if an end
customers router is up or down. SNMP I assume
I would actually venture to say the contrary. An IX should be the last item
on your list since it only really makes sense at a certain scale and if you
can make use of the providers on it.
Most of the networks you'll have trouble getting to via transit providers
are that way because of how they
My understanding is that the calendar, which in this case showed a dozen or so
copies, lists only crawled instances that had changed since The previous crawl.
Well it certainly true that time elapses between each crawl, so it's possible
that some changes could be missed, my understanding is
>> which in this case showed a dozen or so copies
Yeah sorry, I should have said that I was only looking into the time
frame 2017 till now.
>> I think it's possible that the bogin list just doesn't change that
frequently.
I think I aggree that it is unlikely to change frequently, however,
No cost affective 10x10G to 100G muxponder?
Sent from my iPad
On Dec 15, 2018, at 4:46 AM, Mike Hammett
mailto:na...@ics-il.net>> wrote:
heh, cross connects are indeed a major issue. I have a need for > 10G
transport. My equipment supports 40G. The carriers aren't terribly interested
in
FS had one, but it's not on their site anymore.
-
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
- Original Message -
From: "Luke Guillory"
To: "Mike Hammett"
Cc: "Eric Dugas" , "nanog"
Sent: Saturday, December 15, 2018
On 12/15/18 1:31 AM, Lars Prehn wrote:
Hi everyone,
Hi,
In order to sanitize historical BGP data I would like to use historical
Bogon lists. The CIDR report generates those lists on a daily basis
(e.g. https://www.cidr-report.org/bogons/freespace-dec.txt for prefixes)
but, as far as I
Mike Hammett wrote:
> Usually, DIA (as transit delivered to a customer) is more expensive than
> transport + transit + small colo
> (1U\2U stuff) + IX... at least as observed by many of my brethren.
Is this really true in the general case?
Adding colo and IX to transport and transit
I think it'll depend on your target customer. Residential eyeball? Being on an
IX is more important at nearly any size than which transit you choose. Even a
good-sized residential eyeball (say 10k and up subs) can be good with
Cogent\IX\one other transit.
Hosting and enterprise-focused ISPs
The type of customer on the network is important here.
Most traffic on residential eyeball networks goes to IXes. I know guys pushing
85% of their traffic to IXes. Even small IXes like ours are capturing well over
50% of an ISP's traffic. Netflix, Google, Akamai, Cloudflare. That's what,
On 12/15/18 7:48 AM, Colton Conor wrote:
> How much compute and network resources does it take for a NMS to:
>
> 1. ICMP ping a device every second
> 2. Record these results.
> 3. Report an alarm after so many seconds of missed pings.
>
> We are looking for a system to in near real-time monitor
You could configure BFD to send out a SNMP alert when three packets have
been missed on a 50 ms cycle. Or instantly if the interface charges state
to down. This way you would know that they are down within 150 ms.
BFD is the hardware solution. A Linux box that has to ping 1000 addresses
per
Of course YMMV.
I'm speaking from the perspective of ISPs between say 300 and 10k customers.
I'm knee deep in that community.
I'm also generally speaking of facilities that don't have astronomical cross
connect charges (so not Equinix, DRT, etc.). In some places, the cross connect
cost is
On 15/Dec/18 19:37, nanog-...@mail.com wrote:
>
> I certainly subscribe to the notion that transport + transit is usually
> less expensive than DIA, but this does depend on the market and location.
... and the type of customer.
DIA for a high-value "Enterprise" customer (think of a large
On 15/Dec/18 19:37, Baldur Norddahl wrote:
>
>
> BFD is the hardware solution.
Don't remind me that Juniper currently don't support BFD in hardware for
IS-IS- or OSPFv3-signaled IPv6 routing :-(.
Mark.
In one of my client's company, we use LibreNMS. It is normally used to
get SNMP data but we also have it configured to ping our more "high
touch" cients routers. In that case we can record performance such as
latency and packet loss. It will generate graphs that we can pass on to
the client.
The problem I am trying to solve is to accurately be able to tell a
customer if their home internet connection was up or down. Example,
customer calls in and says my internet was down for 2 minutes yesterday. We
need to be able to verify that their internet connection was indeed down.
Right now
I think the guys in the NOC will add a customer CPE to Solarwinds monitoring
and just have it continually run pings, and set up an alert so that we know as
soon as the ping stop the alerts go to email or whererver
Aaron
> On Dec 15, 2018, at 12:32 PM, Colton Conor wrote:
>
> The problem I am
Is RADIUS accounting an option here?
Dave
On Sat, 15 Dec 2018 at 18:32, Colton Conor wrote:
> The problem I am trying to solve is to accurately be able to tell a
> customer if their home internet connection was up or down. Example,
> customer calls in and says my internet was down for 2
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