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SLA/noSLA


Bruno
03-03-2008, 15:49
If you have one server : SLA. I don't know how it is in UK, but their speed is surely less than 10 Mbps (no?). So they will download at the max of their download speed.

fozl
03-03-2008, 15:37
Translation:

*SLA/noSLA*
------------------------------------------------------------------------
http://travaux.ovh.com/?do=details&id=2008

We are going to progressively activate some QoS rules on our network called SLA and noSLA.

SLA:
When a customer uses less than 101Mbps of bandwidth on his server(s), he is entitled to a SLA connection. That means that we don't limit the total bandwidth per server. However, we check the bandwidth used at each connection (the flow), a ftp or web downloading for instance. In the case of SLA bandwidth, the customer is not limited if the download is less than 32MB. He uses all the available and useable bandwidth. If the download used 32 MB, the router limits the downloading connection (and only this downloading) to 10Mbps.

To sum up SLA is:
- Total bandwidth per server is not limited. You are entitled to 100 Mbps or 1 Gbps (according to the offer).
- Bandwidth per connection
- between 0h and 24h, it's 10 Mbps per connection

More generally, the SLA bandwith is a network protection measure which aims to protect the network against any incoming and outgoing attacks. Find out more about it here: task of 18th March 2007, 12:10 http://travaux.ovh.com/?do=details&id=1421

NoSLA:
If the customer used more than 101 Mbps on his server(s), Ovh can decide to manually switch his server(s) into noSLA mode, for outgoing bandwidth (only). This means that we don't limit the total bandwidth per server. However, we check the bandwidth used by each connection (the flow), ftp or web downloading for instance. In the case of noSLA bandwidth, each connection (flow) is limited to a value that evolves during the day, every hour and according to the recipient and variation between 10Mbps and 512 Kbps (during rush hours) .

To sum up , noSLA is:
- Total bandwidth per server is not limited. You are entitled to 100Mbps or 1Gbps (according to the offer).
- Bandwidth per connection
- Between 0h and 9am: 10 Mbps per connection
- Between 9am and 3pm: reduce of 5 Mbps to 500 Kbps per connection
- Between 3 pm and 9pm: 500 Kbps per connection
- Between 9pm and 11pm: re-increase 500Mbps to 5Mbps per connection
- Between 11pm and midnight: 10 Mbps per connection

These values can evolve according to the time, recipients and the occupancy of the links.

The noSLA bandwidth has been developped for big consumers of bandwidth that need several dedicated servers and look for a lot of bandwith with optimal quality, without paying the most expensive price, and needs excellent value for money by consuming the unused bandwidth (during the night and the morning). The noSLA bandwidth is for customers that want to provide massive downloading services, massive video with a maximum quality for 60% of the day and a best-effort for the rest of the day.

Lam3r_co
03-03-2008, 15:21
Im little confused, cuz I read about this in german (ovh.de) so here is the question:

I want to share movies we've been doing at school recently as school-project on my server via bit-torrent protocol. They are all packed in aprox. 10x50MB.zips. I think there will be only about 5 pupils downloading the same movie at once and there will be about 12-20 movies. I dont know what time they'll download from there, but I want to offer the best speed. Which setting should I use - SLA or nonSLA?
I think SLA fits for my situation. Am I right?

Thanks

Bruno
03-03-2008, 12:34
Quote Originally Posted by Andy
Thanks for clearing that up. I ran it through the google translator but it didn't make much sense.
I made a mistake : SLA for Kimsufi too.

Andy
03-03-2008, 12:31
Quote Originally Posted by Bruno
Octave change language every day. Tomorrow it will be in... Polish ?

For those who don't speak French :

SLA : if total < 100Mbps (total = sum of all your servers)
noSLA : if total > 101 Mbps

The difference : with SLA, your bandwith is guaranted full 100Mbps per connection with a "burst" of 32MB. If someone is downloading a 100MB file from your server, he has 100Mbps. But after he downloaded 32MB, the connection goes down to 10Mbps. With noSLA, the bandwith depends of the network load with a maximum of 10Mbps (per connection).

NB : only noSLA for Kimsufi
Thanks for clearing that up. I ran it through the google translator but it didn't make much sense.

Bruno
03-03-2008, 12:24
Octave change language every day. Tomorrow it will be in... Polish ?

For those who don't speak French :

SLA : if total < 100Mbps (total = sum of all your servers)
noSLA : if total > 101 Mbps

The difference : with SLA, your bandwith is guaranted full 100Mbps per connection with a "burst" of 32MB. If someone is downloading a 100MB file from your server, he has 100Mbps. But after he downloaded 32MB, the connection goes down to 10Mbps. With noSLA, the bandwith depends of the network load with a maximum of 10Mbps (per connection).

NB : only noSLA for Kimsufi

oles@ovh.net
03-03-2008, 11:30
http://travaux.ovh.com/?do=details&id=2008

Nous allons activer progressivement sur notre reseau des regles
de QoS appelés SLA et noSLA.

SLA:
Lorsque le client fait moins de 101Mbps de la bande passante sur
son serveur ou ses serveurs, il a droit à une connexion SLA.
C'est à dire que nous ne limitons pas la bande passante globale
par serveur. Par contre, nous regardons la bande passante prise
par chaque connexion (le flow), par exemple un telechargement
ftp ou un telechargement web. Dans le cas de la bande passante SLA,
le client n'est pas limité si le telechargement est inférieur à 32MB.
Il utilise toute la bande passante disponible et utilisable. Si le
telechargement a consommé 32MB, le routeur limite la connexion du
telechargement (et seulement de ce telechargement) à 10Mbps.

Le resumé de SLA:
- la bande passante generale par serveur n'est pas limité. Vous avez
droit à 100Mbps ou 1Gbps (en fonction de l'offre).
- la bande passante par connexion
- entre 0h et 24h est de 10Mbps par connexion

Plus globalement la bande passante SLA est la protection du
reseau qui ont pour le but de proteger le reseau contre les attaques
entrantes et sortantes. En savoir plus: le task du 18 mars 2007, 12:10
http://travaux.ovh.com/?do=details&id=1421

noSLA:
Si le client utilise plus que 101Mbps sur son serveur ou ses serveurs,
Ovh peut decider, manuellement, de passer le serveur ou les serveurs dans
le mode noSLA, pour la bande passante sortante (uniquement).
C'est à dire que nous ne limitons pas la bande passante globale
par serveur. Par contre, nous regardons la bande passante prise par chaque
connexion (le flow), par exemple un telechargement ftp ou un
telechargement web. Dans le cas de la bande passante noSLA, chaque
connexion (le flow) est limitée à une valeur qui évolue dans la
journée, toutes les heures et en fonction du destinateur et varie
entre 10Mbps et 512Kbps (pendant les heures de pointe).

Le resumé de noSLA:
- la bande passante generale par serveur n'est pas limité. Vous avez
droit à 100Mbps ou 1Gbps (en fonction de l'offre).
- la bande passante par connexion
- entre 0h et 9h est de 10Mbps par connexion
- entre 9h et 15h diminue de 5Mbps à 500Kbps par connexion
- entre 15h et 21h est de 500Kbps par connexion
- entre 21h et 23 reaugmente 500Mbps à 5Mbps par connexion
- entre 23H et 24h est de 10Mbps par connexion

Ces valeurs peuvent evoluer en fonction des heures, des destinateurs
et de l'occupation des liens.

La bande passante noSLA a été developpée pour les gros consomateurs
de bande passante qui veulent plusieurs serveurs dédiés et cherchent beaucoup
de bande passante avec une qualité optimale, sans payer la bande passante au
prix fort et donc cherchent un excellent rapport qualité/prix en consomant la
bande passante non utilisée (pendant la nuit et le matin). La bande passante
noSLA est destinée aux clients qui souhaitent proposer des services de telechargement
massif, de video massif avec une qualité maximale pendant 60% de la journée
et un best-effort pendant le reste du temps.