From: Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr>
To: Dave Taht <dave.taht@gmail.com>
Cc: Andrew McGregor <andrewmcgr@gmail.com>,
"babel-users@lists.alioth.debian.org"
<babel-users@lists.alioth.debian.org>,
"cerowrt-devel@lists.bufferbloat.net"
<cerowrt-devel@lists.bufferbloat.net>,
Felix Fietkau <nbd@nbd.name>
Subject: Re: [Cerowrt-devel] [Babel-users] more wet paint - babel unicast IHU for short-rtt path optimization
Date: Tue, 07 Apr 2015 22:52:57 +0200 [thread overview]
Message-ID: <87sicbfyom.wl-jch@pps.univ-paris-diderot.fr> (raw)
In-Reply-To: <CAA93jw4Hv--0B3mNXLg9Nj7cuo+EexbudKr566qcXAFH=cru0A@mail.gmail.com>
> A timestamp is not defined for updates, presently.
No. Only Hellos are timestamped, and no unicast Hello is defined currently.
(IHUs carry timestamp echos.)
> Do you fragment?
We don't need to -- the largest possible update is on the order of 100 octets,
and we assume that we can send 512 octets without fragmentation.
> Would an IHU be bundled with an update?
It could be, but unless it's bundled with a Hello, an IHU's timestamp echo
is ignored (read Jonglez-Boutier-Chroboczek again to see why). And Hellos
cannot be unicast.
-- Juliusz
prev parent reply other threads:[~2015-04-07 20:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-07 18:56 [Cerowrt-devel] " Dave Taht
2015-04-07 20:28 ` [Cerowrt-devel] [Babel-users] " Juliusz Chroboczek
2015-04-07 20:44 ` Dave Taht
2015-04-07 20:52 ` Juliusz Chroboczek [this message]
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