Since they don't own the backbone, their SLAs apply only to their PNAPs, i.e. they cannot guarantee performance, packet loss, delay, outages, etc over somebody else's backbone (e.g. Sprint, UUNet, AT&T, etc). Many large enterprises are leveraging on the Internet to deploy VPN connectivity between company sites as a replacement for Frame Relay or ATM PVCs. In such cases, it's very important to make sure that the service comes with the right SLAs. -----Original Message----- From: Tom Schmidt [mailto:tsch52@hotmail.com] Sent: Monday, October 30, 2000 5:42 PM To: nanog@merit.edu Subject: InterNAP? I need your opinion on InterNAP. I am currently have a DS3 to my current provider and want to add an additional DS3 for redundancy to the same location. We plan to run BGP4 on both connections. InterNap has some technology to avoid congested peering points. Does this technology actually work? Isn't it impossible to avoid these peering points? What are your experiences with InterNAP? _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.
Thus spake "Spolidoro, Guilherme" <guilherme.spolidoro@unisys.com>
Since they don't own the backbone, their SLAs apply only to their
PNAPs,
i.e. they cannot guarantee performance, packet loss, delay, outages, etc over somebody else's backbone (e.g. Sprint, UUNet, AT&T, etc).
Nor can anyone who peers with the above; InterNAP theoretically has a better chance of getting good service, since they're a paying customer. That's how their business model goes, at least.
Many large enterprises are leveraging on the Internet to deploy VPN connectivity between company sites as a replacement for Frame Relay or ATM PVCs. In such cases, it's very important to make sure that the service comes with the right SLAs.
SLAs are rarely worth the paper they're printed on. If you do not design your network/services/whatever around the *expectation* that your carrier will fail, you're in for a rough ride. What consolation is a prorated refund when your circuit is down for 2+ days? S | | Stephen Sprunk, K5SSS, CCIE #3723 :|: :|: Network Design Consultant, GSOLE :|||: :|||: New office: RCDN2 in Richardson, TX .:|||||||:..:|||||||:. Email: ssprunk@cisco.com
On Tue, Oct 31, 2000 at 08:53:03AM -0500, Spolidoro, Guilherme wrote:
Since they don't own the backbone, their SLAs apply only to their PNAPs, i.e. they cannot guarantee performance, packet loss, delay, outages, etc over somebody else's backbone (e.g. Sprint, UUNet, AT&T, etc).
The ability to "guarantee" performance is orthogonal to how you write your SLAs. Anyone with knowledge of risk management and actuarial science understands this.
participants (3)
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Bradley Dunn -
Spolidoro, Guilherme -
Stephen Sprunk