nanog mailing list archives
Re: ipv6 book recommendations?
From: valdis.kletnieks () vt edu
Date: Wed, 06 Jun 2012 17:44:45 -0400
On Wed, 06 Jun 2012 14:53:02 +0100, Anton Smith said:
Potentially silly question but, as Bill points out a LAN always occupies a /64. Does this imply that we would have large L2 segments with a large number of hosts on them? What about the age old discussion about keeping broadcast segments small? Or, will it be that a /64 will only typically have a similar number of hosts in it as say, a /23|4 in the IPv4 world?
We simply allocated a v6 /64 for each v4 /21, /22, /23, /2whatever in our network. Works fine. No more "what the fsck is the subnet in THIS building?" issues. Amazing how often we find hosts that are in one building but misconfig'ed because the sysadmin put in the netmask for the building his office is in, not the building the server is in. When there's 125+ buildings on the campus, this matters. ;) As somebody else mentioned, the limiting factor is "How much ND/ARP traffic are you willing to tolerate in one broadcast domain?".
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Current thread:
- Re: IPv6 Multi-homing (was IPv6 /64 links), (continued)
- Re: IPv6 Multi-homing (was IPv6 /64 links) Christopher Morrow (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) William Herrin (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) Douglas Otis (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) William Herrin (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) William Herrin (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) Cameron Byrne (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) Mikael Abrahamsson (Jun 25)
- Re: IPv6 Multi-homing (was IPv6 /64 links) Douglas Otis (Jun 26)
- Re: IPv6 /64 links (was Re: ipv6 book recommendations?) Owen DeLong (Jun 21)
- Re: ipv6 book recommendations? Cutler James R (Jun 06)
- Re: ipv6 book recommendations? valdis . kletnieks (Jun 06)