nanog mailing list archives
Re: What is the most standard subnet length on internet
From: Joe Greco <jgreco () ns sol net>
Date: Fri, 19 Dec 2008 09:48:50 -0600 (CST)
As for routing table size, no router which can handle 10s of Gbps is at all bothered by the size of the global table,
... as long as it isn't something like a Cisco Catalyst 6509 with SUP720 and doesn't have a PFC3BXL helping out ... ... or if we conveniently don't classify a Catalyst 65xx as a router because it was primarily intended as a switch, despite how ISP's commonly use them ...
so only edge devices or stub networks are in danger of needing to filter /24s. And both of those can (should?) have something called a "default route", making it completely irrelevant whether they hear the /24s anyway.
A more accurate statement is probably that "any router that can handle 10s of Gbps is likely to be available in a configuration that is not at all bothered by the current size of the global table, most likely at some substantial additional cost." ... JG -- Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net "We call it the 'one bite at the apple' rule. Give me one chance [and] then I won't contact you again." - Direct Marketing Ass'n position on e-mail spam(CNN) With 24 million small businesses in the US alone, that's way too many apples.
Current thread:
- What is the most standard subnet length on internet 정치영 (Dec 18)
- Re: What is the most standard subnet length on internet Randy Bush (Dec 18)
- Re: What is the most standard subnet length on internet Mike Lyon (Dec 18)
- Re: What is the most standard subnet length on internet Marshall Eubanks (Dec 18)
- Re: What is the most standard subnet length on internet Suresh Ramasubramanian (Dec 18)
- Re: What is the most standard subnet length on internet bmanning (Dec 18)
- <Possible follow-ups>
- Re: Re: What is the most standard subnet length on internet 정치영 (Dec 18)
- RE: Re: What is the most standard subnet length on internet Darryl Dunkin (Dec 18)
- Re: Re: What is the most standard subnet length on internet Suresh Ramasubramanian (Dec 18)
- Re: What is the most standard subnet length on internet Patrick W. Gilmore (Dec 19)
- Re: What is the most standard subnet length on internet Joe Greco (Dec 19)
- Re: What is the most standard subnet length on internet Patrick W. Gilmore (Dec 19)
- Re: What is the most standard subnet length on internet Randy Bush (Dec 19)
- RE: Re: What is the most standard subnet length on internet Darryl Dunkin (Dec 18)
- Re: What is the most standard subnet length on internet Joe Abley (Dec 19)
- Re: What is the most standard subnet length on internet Joe Provo (Dec 19)
- Re: What is the most standard subnet length on internet Patrick W. Gilmore (Dec 19)
- Re: Re: What is the most standard subnet length on internet Patrick W. Gilmore (Dec 19)
- Re: Fwd: Re: Re: What is the most standard subnet length on internet Howard C. Berkowitz (Dec 19)