Re: [v6ops] SLAAC renum: Problem Statement & Operational workarounds
Fernando Gont <fgont@si6networks.com> Fri, 25 October 2019 17:45 UTC
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To: Owen DeLong <owen@delong.com>
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From: Fernando Gont <fgont@si6networks.com>
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Subject: Re: [v6ops] SLAAC renum: Problem Statement & Operational workarounds
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On 24/10/19 13:52, Owen DeLong wrote: >>> I'm also not convinced >>> that there are sensible values for these lifetimes that are robust >>> enough >>> and at the same time responsive enough to deal with the issue at hand. >>> >>> Reducing the lifetimes would help against build up of stale prefixes. If >>> they are set to a couple of hours. >> >> I do agree that this is not a complete solution, but, as you correctly >> note, would help against build up of stale prefixes. > > I do agree that 7 and 30 days, respectively are absurd timer default values. Exactly. *That* is the point. > I think we can take some lessons from IPv4 and DHCP here. A fairly common > lease time in the DHCP world is 3600 seconds (1 hour). This seems like a > reasonable default preferred lifetime and I would propose that 1 day (86400) > seconds may well be a reasonable default valid lifetime. That's certainly an improvement wrt what we have right now. > > It is worth noting that these values are tunable by the administrator > and the > RFC suggested defaults should never be a hard-coded value. > > With the following exception, I don’t advocate modifying this on the client > side: > +Section 5.5.3 of RFC4862 should be amended to specifically > allow the immediate deprecation of a prefix by sending a valid > lifetime of 0 seconds. Hosts should be required to honor > this as a signal that the prefix is no longer valid. Could you please elaborate on this one? > I do think that generally speaking, your proposed modifications to CPE and > router behavior should be standardized and implemented. > >> A better mitigation is to affect the preferred and possibly the valid >> lifetimes in response to consecutive RAs from the same router that lack >> the original (stale) prefix. e.g., after two consecutive RAs that do not >> contain the existing prefix, reduce the preferred lifetime. After two >> additional RAs, reduce the valid lifetime. > > In the crash scenarios you describe, you’re assuming a single router on > the network or > at least only one router announcing the prefix(es) in question with no > persistent > memory of the prefixes it was announcing across a reboot. In such a > scenario, > it seems to me that the following are also likely valid assumptions: > > +The network has significant excess bandwidth compared to demand. > +The small overhead of frequent RAs and short lifetimes is probably > an acceptable tradeoff in this environment. > > However, there are lots of other scenarios in the world where those > assumptions > won’t hold true and we should not seek to solve this problem (which is > generally > applicable to residential and SMB environments) at the expense of all of > those > other professionally administered environments. Even with the default RA frequency, if you were to unprefer a prefix upon, say, second RA that doesn't advertise it, and say, remove the prefix after many other RAs are received, that would be a *big* improvement to what we have now. > > For > > For the busy wifi scenario, the preferred lifetime of zero for the old > PIO should be > sent many times and should be maintained in the configuration for at least > OldPreferredLifetime seconds. At the end of OldPreferredLifetime seconds, > if a host hasn’t seen the new RA, it will no longer matter as the last > RA it saw > will have expired. It’s not ideal, but there really aren’t a lot of good > options here > other than getting WiFi vendors to improve multicast reliability. > > In your automated configuration management scenario, IMHO, the people > driving the automation have erred. The related case is, IMHO, a variant > of the exact same case and represents the same error. It is still operator > error regardless of whether the operator is driving an automation system, > or is directly configuring a router. At a certain point, we need to > accept that > there is a limit to the acceptable gymnastics for the prevention of operator > error. The best colloquialism here is “If you make something completely > idiot proof, the world will invent a better idiot.” > > In section 3.2.1, you advocate setting the A and L bits to their > previous values > for prefixes which are being deprecated. IMHO, this is incorrect and the > announcements calling for immediate deprecation should also indicate that > the prefix should no longer be auto-configured and should no longer be > considered on-link. Not sure I follow. Could you please elaborate? > Is there some unfortunate widely deployed behavior that interacts poorly > with setting A and L to 0 for these previously valid prefixes? > > Finally, An editorial note… In Section 3, you state “Finally, Section > 2.5 analyzes…” > I believe this is intended to be a reference to section 3.2.2. Nope. Section 3.2.2 talks about the interaction between dhcpv6-pd and slaac. BUt it is section 2.5 that discusses other considerations for dynamic/stable prefixes. For example, stable prefixes are not nice for privacy. Thanks, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
- [v6ops] SLAAC renum: Problem Statement & Operatio… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Trevor Warwick
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Eric Vyncke (evyncke)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… JORDI PALET MARTINEZ
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Gert Doering
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Clark Gaylord
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Nick Hilliard
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Richard Patterson
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Nick Hilliard
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Kristian McColm
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Jen Linkova
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Jen Linkova
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Jen Linkova
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Timothy Winters
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Nick Hilliard
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Timothy Winters
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Timothy Winters
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… JORDI PALET MARTINEZ
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Radu-Adrian Feurdean
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- [v6ops] A broken promise - "You said PD Prefix Va… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] A broken promise - "You said PD Prefi… Naveen Kottapalli
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Radu-Adrian Feurdean
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Sander Steffann
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… sthaug
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Bernie Volz (volz)
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Bernie Volz (volz)
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fred Baker
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… sthaug
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Alexandre Petrescu
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Richard Patterson
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Richard Patterson
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Andrews
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- [v6ops] What problem are we trying to solve? (Re:… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Fernando Gont
- Re: [v6ops] What problem are we trying to solve? … Fernando Gont
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Mark Smith
- Re: [v6ops] What problem are we trying to solve? … Fred Baker
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Richard Patterson
- Re: [v6ops] What problem are we trying to solve? … Ted Lemon
- Re: [v6ops] What problem are we trying to solve? … Ted Lemon
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Ted Lemon
- Re: [v6ops] What problem are we trying to solve? … Ole Troan