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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Opinions about InterNAP
On Wed, 13 Jun 2001, Seth M. Kusiak wrote: > > I've been told by many that most national providers filter any prefix > greater then a /20 such as sprint and verio. > > -Seth > > David McGaugh writes: > > > /24's are sufficient to multihome with most if not all providers out > > there. Why not conventionally multi-home to 2 large well established > > providers? > > > > -Dave Filters depend on where you get your allocation. We got 216.249.16.0/20 from arin. Since we're above the swamp, we have a greater chance of having any given /24 not be filtered. Shortly after we got the allocation, I announced a single /24, and could cleanly traceroute to machines on that subnet from points behind sprint, verio, C&W, worldcom, etc. Had we been given an allocation from 65/8 or another block in former-class-A space, we probably would've had problems. FWIW, what I've heard is that most people like Verio who used to have painfully strict filtering policies have reverted to something a little better. Personally I've seen no impact on filtering, we renumbered our production networks out of the GBLX/GBLC/Exodus-owned and aggregated space (64.209.175.0/24 and 64.210.164.0/23) into our own /22 in 216.249.16.0, and usage is still increasing. We've also heard no complaints of unreachability. -j -- -Jonathan Disher -Sr. Systems and Network Engineer, Web Operations -Internet Pictures Corporation, Palo Alto, CA -[v] (650) 388-0497 | [p] (877) 446-9311 | [e] [email protected]
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