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Is IPv6 faster than IPv4?

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Re: Is IPv6 faster than IPv4?

#32

I still can't get away from this sensation that no matter how good IPv6 is, the ship has sailed. The inferior but indisputably cheaper technology won out over the technically superior one. VHS vs Betamax. Ethernet over Token Ring.

You're talking about displacing an incumbent, not competing technologies.

IPv6 will win, once people stop sitting on their hands. Companies now are being effectively forced to adopt it due to exhaustion of the range.. CGNAT is bigger than ever and is causing real issues so most phones are dual homed with IPv6 behind a v4 CGNAT.

Like climate change, its a "future problem" until its practically staring you in the face, at which point its too late or very painful to solve..

Nihlism isnt helping.

Re: Is IPv6 faster than IPv4?

#33

I still can't get away from this sensation that no matter how good IPv6 is, the ship has sailed. The inferior but indisputably cheaper technology won out over the technically superior one. VHS vs Betamax. Ethernet over Token Ring.

To have some data : https://www.google.com/intl/en/ipv6/statistics.html While progress is slow, it is constant and we're reaching 40% of IPv6 availability in 2022, from pretty much 0% in 2010. I'm confident we'll get there.

It's mostly phones though, that talk to IPV4 backends via gateways. So there's not much pressure on backend services to adopt IPV6.

Re: Is IPv6 faster than IPv4?

#34

It seems that this article is missing the forest for the trees. The biggest improvement will come not from the raw speed but from the entire IPv6 eco-system. For example, the new segment routing for IPv6 or SRv6 should improve the Quality of Service (QoS) for examples bandwidth, delay and jitter by having control at the edge. This is unlike MPLS where the control is done in the core itself and that's why MPLS is call…

SRv6 is not going to transform the quality of experience/quality of service that you see from Internet applications. Traffic engineering technologies like this (MPLS-based, IP-based, emulated circuit based...) are used inside networks to select paths through them, this has been done for many years, and the segment routing data-plane - whether it be MPLS or IPv6, is a different realisation of how to achieve that path selection through a network. There are networks that have done this traffic engineering using IP encapsulation for many years.

The whole "IP 2.0" presumption that appears to be being made here is that suddenly some external traffic source will be able to select a route through someone else's network -- but this just isn't the commercial reality. Some more performant paths are going to have costs associated with them (even if it's just to build more capacity), so there is going to be a cost of choosing that route through the network. That cost is going to need to be covered somewhere - so you are very unlikely to actually be able to get to choosing a path without some commercial contract. Guess what? We've already had those -- they just tend to use the DSCP bits to indicate what the traffic class, and hence associated requested SLO is - not an explicitly chosen path.

Equally, let's think about how this would even work - if you are going to choose a path through the network to get better QoS, you're going to need to know something about what IDs to use, which implies knowledge of the topology. Inter-domain topology exposure is going to /significantly/ increase the complexity and fragility of inter-domain routing -- there are reasons that we don't run a global link-state protocol :-)

In conclusion - I think this is hype with little technical justification, and is unlikely to have any different impact than other intra-domain traffic engineering that the industry has been running for many years.

Re: Is IPv6 faster than IPv4?

#35

I still can't get away from this sensation that no matter how good IPv6 is, the ship has sailed. The inferior but indisputably cheaper technology won out over the technically superior one. VHS vs Betamax. Ethernet over Token Ring.

To have some data : https://www.google.com/intl/en/ipv6/statistics.html While progress is slow, it is constant and we're reaching 40% of IPv6 availability in 2022, from pretty much 0% in 2010. I'm confident we'll get there.

Since ~2017, the highwater mark of IPv6 availability is growing at about 10 percentage points every 2½ years. At that rate it will hit 100% in 15 years, although I expect the penetration will tick up a bit in ~5 years.

Re: Is IPv6 faster than IPv4?

#36
IPV6 becomes supercharged when you layer it with the original Bitcoin protocol. It integrates Cryptographic Generated Addresses in IPV6 which is an extension that has been around for awhile but never implemented.

Here is the founder and chair of the IPV6 forum giving a speech about it just a couple of weeks ago: https://www.youtube.com/watch?v=dE3Vsbo1NPs

Really cool engineering things are being worked on in the background.

Re: Is IPv6 faster than IPv4?

#37

IPV6 becomes supercharged when you layer it with the original Bitcoin protocol. It integrates Cryptographic Generated Addresses in IPV6 which is an extension that has been around for awhile but never implemented. Here is the founder and chair of the IPV6 forum giving a speech about it just a couple of weeks ago: https://www.youtube.com/watch?v=dE3Vsbo1NPs Really cool engineering things are being worked on in the back…

Think a new IP address for every packet.

Re: Is IPv6 faster than IPv4?

#38
post #9

At Netflix, we found in quite a few networks IPv6 had much better QoE than IPv4. In a limited number of cases, IPv6 was very broken. It was almost always equal or better.

Did you have a sense of whether QoE diverged due to differences in the networking equipment or differences in the protocol itself?

I believe in 1 case it was pathological issues with some networking equipment, but this was a recent thing, so I haven’t looked into everything yet.

Re: Is IPv6 faster than IPv4?

#39
post #10

At Netflix, we found in quite a few networks IPv6 had much better QoE than IPv4. In a limited number of cases, IPv6 was very broken. It was almost always equal or better.

Much smaller POV, but when I was dealing with ISP things in past I've found that on many networks v4 might have a nice, redundant blend while frequently v6 is some mix of HE+something or singlehomed HE, which disappoints me. But then the fact that their ports are basically unused other than for the usual G/YT/FB traffic makes the v6 pretty uncontended.

Luckily we have embedded OCAs and/or peering with almost every network of significant size, so their choice of transit rarely comes into the mix.

Re: Is IPv6 faster than IPv4?

#40

I still can't get away from this sensation that no matter how good IPv6 is, the ship has sailed. The inferior but indisputably cheaper technology won out over the technically superior one. VHS vs Betamax. Ethernet over Token Ring.

You’re talking like ipv6 isn’t already here. On my large (~100k clients) dual stack wide area network, 75% of internet traffic is ipv6.
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