[191154] in North American Network Operators' Group
Re: What's the meaning of virtual POP ?
daemon@ATHENA.MIT.EDU (William Herrin)
Tue Aug 23 18:46:53 2016
X-Original-To: nanog@nanog.org
X-Really-To: <nanog@nanog.org>
In-Reply-To: <CAJygYd2JSATqQ_cQ53b=6OuUrJtEoOUcbUt3RDJ5F+noKf7Jpw@mail.gmail.com>
From: William Herrin <bill@herrin.us>
Date: Tue, 23 Aug 2016 18:46:21 -0400
To: Yucong Sun <sunyucong@gmail.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On Tue, Aug 23, 2016 at 6:31 PM, Yucong Sun <sunyucong@gmail.com> wrote:
> I came across the idea of the virtual POP , but the website for them have
> way too much jargon to me[1][2][3], can someone explain it like i'm five
> (:-D)?
A virtual Point Of Presence means that you provide services at a
location via someone else's facilities.
The classic example was extending a PRI for dialup modems inside a
particular local calling area via a point-to-point T1 back to your
modem bank somewhere else that would have been a long distance call
for those customers. If you put a modem bank in their local calling
area, it's a POP. If you extend the circuit from their local calling
area back to your modem bank elsewhere, it's a virtual POP.
Modern examples of virtual POPs are much fancier but it's the same basic idea.
> 1. Is virtual POP basically a L2VPN?
It can be. Depends on what service you're extending from the "virtual" location.
> 2. Do such vPOP have guaranteed latency/bandwidth?
Depends on what you're extending and how.
> 3. Is that really useful?
It can be. It can let you dip your toes in a market without a large
up-front investment in equipment and backhaul.
Regards,
Bill Herrin
--
William Herrin ................ herrin@dirtside.com bill@herrin.us
Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
