nanog mailing list archives

Re: IPv6 - a noobs prespective


From: Mike Lyon <mike.lyon () gmail com>
Date: Wed, 9 Feb 2011 10:30:55 -0800

With the recent allocation of the last existing IPv4 /8s (which now kind of
puts pressure on going v6), it would be wonderful if at the next couple of
NANOGs if there could be an IPv6 for dummies session or two :)

-Mike


On Wed, Feb 9, 2011 at 10:22 AM, Jack Bates <jbates () brightok net> wrote:

On 2/9/2011 12:03 PM, William Herrin wrote:

The thing that terrifies me about deploying IPv6 is that apps
compatible with both are programmed to attempt IPv6 before IPv4. This
means my first not-quite-correct IPv6 deployments are going to break
my apps that are used to not having and therefore not trying IPv6. But
that's not the worst part... as the folks my customers interact with
over the next couple of years make their first not-quite-correct IPv6
deployments, my access to them is going to break again. And again. And
again. And I won't have the foggiest idea who's next until I get the
call that such-and-such isn't working right.


What scares me most is that every time I upgrade a router to support needed
hardware or some badly needed IPv6 feature, something else breaks. Sometimes
it's just the router crashes on a specific IPv6 command entered at CLI (C)
or as nasty as NSR constantly crashing the slave (J); the fixes generally
requiring me to upgrade again to the latest cutting edge releases which
everyone hates (where I'm sure I'll find MORE bugs).

The worst is when you're the first to find the bug(which I'm not even sure
how it's possible given how simplistic my configs are, isis multitopology,
iBGP, NSR, a few acls and route-maps/policies), it takes 3-6 months or so to
track it down, and then it's put only in the next upcoming release (not out
yet) and backported to the last release.


Jack (hates all routers equally, doesn't matter who makes it)




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