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View Full Version : nac routing - now using cogent?!


cyberx
11-15-2002, 06:38 AM
Today I did a trace route on a domain hosted on a nac server. It was very different than I expected. Before I had only 11 hops and now I have 25! hops. Ping times went up about 15 ms.

The tracert reveals that cogent lines are used. Before I have seen lambda lines. Is this a temporary routing or is this for ever? I could not find any annoucement at nac.net.

PS I just switched server to get better ping and trace route results. :( Ping is still better, but the tracert is worse.

311
11-15-2002, 08:04 AM
NAC has had cogent for a while...

http://www.nac.net/networkmap.asp

In the map, they state the have two 100mbps line to Cogent.

Nothing new...:)

zerphyte
11-15-2002, 11:33 AM
Just wondering what ip/domain did you trace? It is quite likely it is dcjn.

the-admiral
11-15-2002, 11:56 AM
We have offered Cogent bandwidth through our DCJN product for quite a while now. DCJN is essentially peer fortified Cogent bandwidth, where routes are prioritized with peers first, Cogent second. DCJN and NAC.NET bandwidth are NOT one and the same.

zerphyte
11-15-2002, 12:06 PM
Yes but I have seen quite a few people advertise they have nac bw when infact it is dcjn.

BiGWill
11-15-2002, 12:25 PM
sure, who wouldn't? it's a big pro, if you can advertise with "NAC bandwidth" as NAC has a good name ... so it's a real pro ...
though it'd be false advertisement.

DanielP
11-15-2002, 01:00 PM
*Scratches head*

Last time I asked Nac what DCJN was they said DCJN is the name of their Washington DC Junction (thus DCJN) and it was just cogent bandwidth... I'll have to bug them to see if its "peer fortified or not"

cyberx
11-15-2002, 01:03 PM
It' s an voxtreme server. I assume it is DCJN. What' s the difference? I have read that the DCJN Datacenter is technically dead and uses the same prooviders as the main datacenter.

DanielP
11-15-2002, 01:10 PM
DCJN isn't a datacenter, its a peering point for NAC. I believe pegasus uses it in their network and are the only ones who use it in the Parsippany DataCenter right now... try tracing to <edit - Insert correct server name> maya.effectonline.com </edit> and see if you get cogent, its one of my boxes in NAC, its possible they could be playing with the routing a bit to mix cogent back in or pweb could just be switching to DCJN hard to say, but I know that I'm on direct NAC

zerphyte
11-15-2002, 01:15 PM
Originally posted by DanielP
*Scratches head*

Last time I asked Nac what DCJN was they said DCJN is the name of their Washington DC Junction (thus DCJN) and it was just cogent bandwidth... I'll have to bug them to see if its "peer fortified or not"

heh it actually stands for something else. NAC does not have anything in DC they are pretty much east coast only. It is "peer fortified" bgp preferance is nac peers, cogent, nac.

DanielP
11-15-2002, 01:16 PM
Ehhh *scratches head*

If Chris played a joke on me I'm going to wack him good ^_^;

Oh well, I'd be glad if you could then correct my mis-information lol :)

mdrussell
11-15-2002, 02:07 PM
Originally posted by cyberx
It' s an voxtreme server. I assume it is DCJN. What' s the difference? I have read that the DCJN Datacenter is technically dead and uses the same prooviders as the main datacenter.

Would you mind PMing me with the server you are on?

As the others have mentioned, DCJN is a selection of bandwidth available in NAC, not a different datacenter. Feel free to contact us with any of your concerns.

CipherVendor
11-15-2002, 04:07 PM
The DCJN is still very much alive & many machines currently use it. Basically its NAC bandwidth but without the direct transit providers, so your traffic only passes over of NAC peers (MAE-East / NYIIX). This is the network that pwebtechs new DedicatedNOW boxes will be placed on.

If you are on the regular network and god forbid your traffic passes over a DCJN router or on a cogent line, it's because that's the quickest route to your box.

DanielP
11-15-2002, 04:37 PM
hahah.. ic ic now... thx for correcting me on the name of DCJN I understand now ^_^

Oh well I was incorrect on the name of DCJN but I'm now also not at liberty to state the name :)

jayglate
11-15-2002, 04:40 PM
Thats right if you repeat it we have to kill you.


Originally posted by DanielP
hahah.. ic ic now... thx for correcting me on the name of DCJN I understand now ^_^

Oh well I was incorrect on the name of DCJN but I'm now also not at liberty to state the name :)

DanielP
11-15-2002, 04:42 PM
Jay ^_^

I don't think you'd want to go up against me :)

You'd only get hurt :)

alchiba
11-15-2002, 05:12 PM
Originally posted by zerphyte
NAC does not have anything in DC they are pretty much east coast only.

Psst! DC is on the East Coast.

zerphyte
11-15-2002, 05:14 PM
bleh not like im the only one who types without thinking! its friday no thinking required until monday.

mdrussell
11-16-2002, 05:05 AM
From what I hear the name wouldn't do the network justice in a public forum ;)

Aussie Bob
11-16-2002, 05:09 AM
Originally posted by voxtreme-matt
From what I hear the name wouldn't do the network justice in a public forum ;)
Curious minds do wonder....;) :emlaugh: :D

rusko
11-16-2002, 06:09 AM
my guess: 'darn! cogent junk network'

probably not though, ive tracerouted back and forth and am yet to see *any* cogent in dcjn.

Alan - Vox
11-16-2002, 12:48 PM
Jay ^_^

I don't think you'd want to go up against me

You'd only get hurt


Seeing as i have some servers with Jay i couldnt let that happen... you would have to get through me first, and im not exactly a clean fighter :p

twrs
11-16-2002, 03:17 PM
dcjn network is great and I like the speed there, rarely see Cogent in any traces.

I still don't understand why they could offer the dcjn bandwidth at a cheaper rate than actual NAC bandwidth as I don't see much differences.

mdrussell
11-16-2002, 03:50 PM
Originally posted by rusko
my guess: 'darn! cogent junk network'


Not quite ;)