nanog mailing list archives
Re: is ipv6 fast, was silly Redeploying
From: Owen DeLong via NANOG <nanog () nanog org>
Date: Sat, 20 Nov 2021 14:14:16 -0800
On Nov 20, 2021, at 00:41 , Masataka Ohta <mohta () necom830 hpcl titech ac jp> wrote: Speed of router depends on degree of parallelism. So, for quick routing table lookup, if you provide 128bit TCAM for IPv6 in addition to 32bit TCAM for IPv4, speed is mostly same, though, for each entry, TCAM for IPv6 costs 4 times more and consumes 4 times more power than that for IPv4. However, as global routing table size of IPv6 is a lot smaller than that of IPv4, the number of the entries of TCAM for IPv6 is a lot smaller than that for IPv4. But it is so primarily because IPv6 is not very widely deployed.
Uh, no. It is so because on average IPv4 is so fragmented that most providers of any size are advertising 8+ prefixes compared to a more realistic IPv6 average of 1-3. Owen
Current thread:
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast, (continued)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast Michael Thomas (Nov 19)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast William Herrin (Nov 19)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast Michael Thomas (Nov 19)
- Re: is ipv6 fast, was silly Redeploying John Levine (Nov 19)
- Re: is ipv6 fast, was silly Redeploying Michael Thomas (Nov 19)
- Re: is ipv6 fast, was silly Redeploying John Levine (Nov 19)
- Re: is ipv6 fast, was silly Redeploying John Lee (Nov 19)
- Re: is ipv6 fast, was silly Redeploying Saku Ytti (Nov 20)
- Re: is ipv6 fast, was silly Redeploying j k (Nov 23)
- Re: is ipv6 fast, was silly Redeploying Masataka Ohta (Nov 20)
- Re: is ipv6 fast, was silly Redeploying Owen DeLong via NANOG (Nov 20)
- Re: is ipv6 fast, was silly Redeploying Masataka Ohta (Nov 21)
- Re: is ipv6 fast, was silly Redeploying Måns Nilsson (Nov 21)
- Re: is ipv6 fast, was silly Redeploying Masataka Ohta (Nov 22)
- Re: is ipv6 fast, was silly Redeploying Owen DeLong via NANOG (Nov 22)
- Re: is ipv6 fast, was silly Redeploying Masataka Ohta (Nov 23)
- Re: is ipv6 fast, was silly Redeploying Owen DeLong via NANOG (Nov 23)
- Re: is ipv6 fast, was silly Redeploying Masataka Ohta (Nov 23)
- multihoming Dave Taht (Nov 23)
- Re: multihoming Masataka Ohta (Nov 23)
- Re: multihoming Baldur Norddahl (Nov 24)