nanog mailing list archives

Re: Residential GPON last mile for network engineers (Telus AS852 and others)


From: Paul Nash <paul () nashnetworks ca>
Date: Thu, 15 Oct 2020 20:13:50 +0000

I have a Bell Canada gig fibre connection.  My first attempt was to bridge their all-in-one box (disaster, unreliable 
as all hell), second was to set a bunch of rules for inbound traffic.  Apart from inbound access being *very* iffy, 
their device was s_l_o_w.

So I pulled the fibre GBIC, used a small switch to grab the correct VLAN and pointed that at a small Cisco box.  Way 
more flexible, faster and more reliable than Bell’s box.  DSLreports had all the info needed to get the correct VLANs

YMMV

On Oct 13, 2020, at 9:56 PM, Eric Kuhnke <eric.kuhnke () gmail com> wrote:

Very interesting. Looks like the intention is to bypass the ONT entirely and use a GPON ONT SFP in ones own choice of 
small home router. If the ISP wants to do some weird TR069 provisioning or other stuff it could be seen as 
interfering with the proper management of their network if you remove the CPE entirely.

In an ideal world, personally I would be totally fine with keeping a telco provided small ONT configured as a dumb L2 
bridge, with one optical interface single strand (SC/APC) going to the ISP, and 1000BaseT to my own router.

On Tue, Oct 13, 2020 at 6:51 PM Eric Dugas <edugas () unknowndevice ca> wrote:
I don't have any particular insights for Telus, but there is a huge thread about bypassing Bell ONTs on DSLReports: 
https://www.dslreports.com/forum/r32230041-Internet-Bypassing-the-HH3K-up-to-2-5Gbps-using-a-BCM57810S-NIC
Cheers,
Eric
On Oct 13 2020, at 9:38 pm, Eric Kuhnke <eric.kuhnke () gmail com> wrote:
With the growth of gigabit class single fiber GPON last mile services, I imagine a number of people reading the list 
must have subscribed to such by now.

Something that I have observed, and shared observations with a number of colleagues, is that very often a person who 
works for ($someAS) lives in a location where you are effectively singlehomed to ($someotherAS). Maybe you bought 
your house before you got a job with your current employer, or maybe the network you work for doesn't do residential 
last mile service at all. Perhaps you work remotely for a regional sized entity that's a long distance away from 
where you live.

Therefore necessitating a choice of service from whatever facilities based consumer-facing ISP happens to service 
your home.

For example, in Seattle, a number of people discovered that they could keep the Centurylink GPON ONT, and remove the 
centurylink-provided router/modem combo device. Provided that they were able to configure their own router (small 
vyatta, pfsense box, mikrotik, whatever) to speak a certain VLAN tag on its WAN interface and be a normal PPPoE / 
DHCP client.

I'm sure there are a lot of people who prefer to run their own home router and wifi devices, and not rely upon a 
($big_residential_isp) provided all-in-one router/nat/wifi box with opaque configuration parameters, or no ability to 
change configuration at all.

Any insights as to what the configuration of the Telus AS852 GPON network looks would be helpful. Or other 
observations in general on technically-oriented persons who are doing similar with other ILECs.


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