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In theory, theory and practice are the same. In practice, they are not.In theory, theory and practice are the same. In practice, they are not.Posted Jan 26, 2011 17:36 UTC (Wed) by khim (subscriber, #9252)In reply to: What's so bad about IPv6? by drag Parent article: LCA: IP address exhaustion and the end of the open net
No, they don't support it. It's easy, really: you claim that IPv6 is simpler to process and so it should provide performance boost. But let's check the facts up to 60 million packets per second (Mpps) of IPv4 unicast forwarding traffic and up to 30 Mpps of IPv6 unicast forwarding traffic Oops? Looks like simple and logical way to save half of equipment is to just disable IPv6 - and this is what ISPs are doing... It does not matter if hardware has support for IPv6 or not if it's disabled.
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In theory, theory and practice are the same. In practice, they are not. Posted Jan 26, 2011 19:06 UTC (Wed) by ebiederm (subscriber, #35028) [Link]
Shrug line rate 10gbps software forwarded ipv6 in linux.
In theory, theory and practice are the same. In practice, they are not. Posted Jan 26, 2011 21:40 UTC (Wed) by bronson (subscriber, #4806) [Link]
Markov generated text seeded with the iptables manpage?
In theory, theory and practice are the same. In practice, they are not. Posted Jan 27, 2011 13:51 UTC (Thu) by hmh (subscriber, #3838) [Link]
Must be. It lacks everything, from content, to truth.
Being someone who has actually tried to do 10Gbps routing using Linux, I am well aware of its limitations. You need lots of tuning and the correct hardware to get high packets-per-second rates, and it gets nowhere close to the target 40Mpps. It really is useful only for large packets, or if you need nowhere near line-rate and don't care about DoS attacks with small packets.
One really needs hardware-assisted packet forwarding to do line-speed 10-gigabit routing at all packet sizes. Either that or a routing cluster, at which point TCO goes well above a proper 10Gbit Cisco/Juniper switch-router.
So, the question becomes: are there affordable, non-experimental hardware packet forwarding devices (preferably PCIe) that are compatible with Linux?
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