[178707] in North American Network Operators' Group
Re: content regulation, was Verizon Policy Statement on Net Neutrality
daemon@ATHENA.MIT.EDU (Scott Helms)
Mon Mar 2 15:29:14 2015
X-Original-To: nanog@nanog.org
In-Reply-To: <DC59D686-13EA-487B-97E4-363C15CDB8BA@delong.com>
Date: Mon, 2 Mar 2015 15:29:06 -0500
From: Scott Helms <khelms@zcorum.com>
To: Owen DeLong <owen@delong.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
San Jose is most certainly not a pure coax network and is HFC.
HSD does mean High Speed Data.
On Mar 2, 2015 3:26 PM, "Owen DeLong" <owen@delong.com> wrote:
> Not so sure about that=E2=80=A6
>
> 240.59.103.76.in-addr.arpa. 7200 IN PTR
> c-76-103-59-240.hsd1.ca.comcast.net.
>
> is most definitely a business class service from Comcast. Seems to match
> the entry for 24.7.48.153 pretty closely.
>
> I think the difference is the type of cable network in the particular
> area. HFC is Hybrid Fiber Coax. The network in San Jose doesn=E2=80=99t r=
eally have
> any fiber, so it=E2=80=99s likely not an HFC network. I=E2=80=99m not sur=
e what HSD stands
> for other than possibly =E2=80=9CHigh Speed Data=E2=80=9D, but I suspect =
it=E2=80=99s more likely
> some cable-specific term for an all-copper alternative to HFC.
>
> Owen
>
> > On Mar 2, 2015, at 03:39 , Rich Kulawiec <rsk@gsp.org> wrote:
> >
> > On Sun, Mar 01, 2015 at 11:58:34AM -0500, Christopher Morrow wrote:
> >> business vs consumer edition products? (that'd be my bet)
> >
> > I think these are all residential customers, as business customers
> > appear to use different subdomains and/or host naming conventions, e.g.=
:
> >
> > 24.7.48.153 c-24-7-48-153.hsd1.ca.comcast.net
> > 24.10.217.142 c-24-10-217-142.hsd1.ut.comcast.net
> > 24.129.85.220 c-24-129-85-220.hsd1.fl.comcast.net
> > vs.
> > 70.88.25.201
> 70-88-25-201-chesterfield-va.hfc.comcastbusiness.net
> > 70.90.158.37 70-90-158-37-knoxville.hfc.comcastbusiness.net
> > 70.91.133.105 70-91-133-105-ma-ne.hfc.comcastbusiness.net
> >
> > Or:
> > 23.240.176.98 cpe-23-240-176-98.socal.res.rr.com
> > 24.25.253.81 cpe-24-25-253-81.hawaii.res.rr.com
> > 24.27.121.156 cpe-24-27-121-156.tx.res.rr.com
> > vs.
> > 24.106.98.106 rrcs-24-106-98-106.central.biz.rr.com
> > 24.142.142.169 rrcs-24-142-142-169.central.biz.rr.com
> > 24.173.100.134 rrcs-24-173-100-134.sw.biz.rr.com
> >
> > Those are all (very recent) direct-to-MX on port 25 spam sources, but i=
t
> > looks to me like the first group in each set is residential and the
> second
> > group is business. But perhaps I'm misinterpreting the naming.
> >
> > ---rsk
>
>
