What do you recommend to an end user that have a direct assignment of a /48, and would like to disaggregate as part of a traffic engineering strategy?
Moreiras. On 18/12/13 14:32, Blake Dunlap wrote: > Regardless of the carriers, you'll find most ASs on the internet only > listen to /48 or larger. So even if you get your prefixes accepted by your > provider, don't assume you can get anywhere, or have your packets not fall > in to uRPF blackholes randomly without a larger aggregate announcement. > > -Blake > > > On Wed, Dec 18, 2013 at 10:22 AM, Edward Dore < > edward.d...@freethought-internet.co.uk> wrote: > >> If you’re talking about announcing each location separately, then RIPE >> have a couple of useful articles about prefix visibility on Ripe Labs: >> >> >> https://labs.ripe.net/Members/emileaben/ripe-atlas-a-case-study-of-ipv6-48-filtering >> https://labs.ripe.net/Members/dbayer/visibility-of-prefix-lengths >> >> Otherwise I guess you’ll need to talk to your chosen carrier(s) about >> aggregating your space for you, which will come down to their policies on >> what routes they will carry internally. >> >> Edward Dore >> Freethought Internet >> >> On 18 Dec 2013, at 16:11, Cliff Bowles <cliff.bow...@apollogrp.edu> wrote: >> >>> I accidentally sent this to nanog-request yesterday. I could use some >> feedback from anyone that can help, please. >>> >>> Question: will carriers accept IPv6 advertisements smaller than /48? >>> >>> Our org was approved a /36 based on number of locations. The bulk of >> those IPs will be in the data centers. As we were chopping up the address >> space, it was determined that the remote campus locations would be fine >> with a /60 per site. (16 networks of /64). There are usually less than 50 >> people at the majority of these locations and only about 10 different >> functional VLANs (Voice, Data, Local Services, Wireless, Guest Wireless, >> etc...). >>> >>> Now, there has been talk about putting an internet link in every campus >> rather than back hauling it all to the data centers via MPLS. However, if >> we do this, then would we need a /48 per campus? That is massively >> wasteful, at 65,536 networks per location. Is the /48 requirement set in >> stone? Will any carriers consider longer prefixes? >>> >>> I know some people are always saying that the old mentality of >> conserving space needs to go away, but I was bitten by that IPv4 issue back >> in the day and have done a few VLSM network overhauls. I'd rather not >> massively allocate unless it's a requirement. >>> >>> Thanks in advance. >>> >>> CWB >>> >>> >>> >>> >>> ________________________________ >>> This message is private and confidential. If you have received it in >> error, please notify the sender and remove it from your system. >>>
