On Thu, 11 Sep 2008, Paul Stewart wrote:
Hi there...
In a SP environment, what's common practice so far with subnetting?
Typically, in IPv4 today we use a /30 or /29 for point to point and each
device has a /32 loopback...
I've been reading a lot of different opinions and everyone seems to
recommend a /64 for each link (router) or a server - why so large? I'd love
to see a layout of a few routers in a SP core network and how they've
subnetted them....;)
- /64 if you have any chance that you want to use autoconfiguration (may
be in the future) - for subnets containing lots of computers I definitiely
would go for /64
- /126 you got similar to /30
- /122 in between /64 and /126 - with nice : boundary
- or nothing if you are satisfied by link locals - OSPFv3, IS-IS can work
without global IPv6 address (even BGP can work on Cisco)
Regards,
Janos Mohacsi
Appreciate it,
Paul
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