I do have an IX (with partners), but I also run two ISPs (one I own, the other
I don't).
Forcing checks through two different upstream ISPs will be difficult. You have
CIRBN (which uses Telia and Cogent) and Mediacom (which have Telia, GTT, Level
3, Hurricane, and Comcast as upstream providers and peers with a bunch of other
providers, including Cogent.).
Since you won't be able to force anything on the greater Internet, aside from
launching the probes specifically from within Mediacom and within CIRBN, you'll
have to play whack-a-mole with your hosting facilities.
1. Because Telia has both CIRBN and Mediacom as a transit customer, you'll
have to avoid anyone that has Telia in their mix.
2. Because Cogent has CIRBN as a transit customer and Mediacom as a peer,
your Cogent traffic will go via CIRBN until the CIRBN connection to Cogent goes
down, then it'll go over the peer to Mediacom.
3. Because GTT, Level 3, Hurricane, and Comcast have Mediacom as a transit
customer and no direct relationship to CIRBN, their traffic will go via
Mediacom until the Mediacom connection fails.
You'll also need to keep these things in mind.
1. You'll need to choose your host that complies with the above as narrowly
as possible to best ensure the traffic goes the way you intend for it to go.
The standard (and most logical) way traffic flows is customer is preferred over
peer and peer is preferred over transit.
2. You'll need to watch to make sure that whatever hosts you use to monitor
don't change their transit\peer mix as that could upset your assumptions on
traffic flow.
3. The further you are away from your network, the more likely the traffic
will take a path that is not desired.
4. You'll need to make sure that whatever network your probes come in on
(CIRBN\Mediacom), that the replies return via that same network, if you're
wishing to test that network bidirectionally. This could be accomplished by
static /32 routes for each remote VPS forcing out the particular provider you
wish to test.
You *may* also be able to find a service like ThousandEyes that will allow you
to test as you desire without building all of the infrastructure to do so.
-----
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message -----
From: "Steve Jones" <[email protected]>
To: "AnimalFarm Microwave Users Group" <[email protected]>
Sent: Thursday, December 31, 2020 10:37:16 PM
Subject: Re: [AFMUG] mess around VPS
So you're an exchange. What if I'm wanting to monitor innbound connectivity to
specific hosts across both our providers? Hows a guy do that?
On Thu, Dec 31, 2020, 12:45 PM Mike Hammett < [email protected] > wrote:
I use Steadfast out of Chicago for when I care about the quality of the network
connectivity feeding it.
Otherwise, I use Hetzner as it's the absolute cheapest.
-----
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
From: "Steve Jones" < [email protected] >
To: "AnimalFarm Microwave Users Group" < [email protected] >
Sent: Thursday, December 31, 2020 12:21:04 PM
Subject: [AFMUG] mess around VPS
Whats a decent cheap hosted solution? I keep a vmware instance up I toss crap
on here and there. today may be a chr, tommorrow may be a librenms rebuild,
next day ill build half a Cacti server because this time im finally gonna learn
to operate it, then ill switch to a windows box for some application i need to
test. I usually sit n 50-300gb of idle VMs.
Like right now Im needing inbound monitoring to some problematic customers, I
really just want a multiping instance running overnight.
I prefer to manage access via an external mikrotik or fortigate.
Whats decent and cheap, cheap being key since its only semi production use.
I dont understand AWS
ionos.com looks pretty fair, but I dont know anything about it
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