nanog mailing list archives
Re: How long will it take to completely get rid of IPv4 or will it happen at all?
From: manning <bmanning () karoshi com>
Date: Mon, 29 Jun 2015 17:58:38 -0700
actually, 1500 byte frames require a very different buffering technique, since you have so many in flight at a given time. if your old enough, this equates to the 53byte ATM cells when the data rates were in the Megabit range. manning bmanning () karoshi com PO Box 12317 Marina del Rey, CA 90295 310.322.8102 On 27June2015Saturday, at 15:58, Stephen Satchell <list () satchell net> wrote:
On 06/27/2015 11:48 AM, manning wrote:This is kind of like asking when we will stop using ethernet framing (ethernet was designed for a 3Mbps transmission rate) yet we are deploying 100Gbps networks. Still stuck on that 1500byte limitation. When can we get rid of that?Speed has nothing to do with frame size. The 1500 byte limitation is more a function of the CRC algorithm. (Oh, the initial frame size was selected for 3-mbit Ethernet so that collision mitigation was reasonable.) Think about jumbo frames (9000 bytes) and their robust error detection. Research is being done in even larger frames, because the rule is that as your transmission rate increases, you should increase the frame size and use a FRC algorithm that detects all one-bit errors and most two-bit errors, at least.
Current thread:
- Re: ARIN just subdivided their last /17, /18, /19, /20, /21 and /22. Down to only /23s and /24s now. : ipv6, (continued)
- Re: ARIN just subdivided their last /17, /18, /19, /20, /21 and /22. Down to only /23s and /24s now. : ipv6 Antonio Querubin (Jun 27)
- Re: ARIN just subdivided their last /17, /18, /19, /20, /21 and /22. Down to only /23s and /24s now. : ipv6 Randy Bush (Jun 27)
- Re: ARIN just subdivided their last /17, /18, /19, /20, /21 and /22. Down to only /23s and /24s now. : ipv6 Rafael Possamai (Jun 27)
- How long will it take to completely get rid of IPv4 or will it happen at all? Bob Evans (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Scott Morizot (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Fredy Kuenzler (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Bacon Zombie (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? manning (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Stephen Satchell (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? manning (Jun 29)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Owen DeLong (Jun 28)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Valdis . Kletnieks (Jun 28)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Bob Evans (Jun 29)
- Re: ARIN just subdivided their last /17, /18, /19, /20, /21 and /22. Down to only /23s and /24s now. : ipv6 Randy Bush (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Randy Bush (Jun 27)
- RE: How long will it take to completely get rid of IPv4 or will it happen at all? Chuck Church (Jun 27)
- RE: How long will it take to completely get rid of IPv4 or will it happen at all? Tony Wicks (Jun 27)
- Message not available
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Larry Sheldon (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Saku Ytti (Jun 27)
- RE: How long will it take to completely get rid of IPv4 or will it happen at all? Tony Hain (Jun 27)
- Re: How long will it take to completely get rid of IPv4 or will it happen at all? Blair Trosper (Jun 27)