FYI, Calix has GPON support for the 836GE ONT on the E7 today, and it will be supported in GPON mode in Release 9.0 on the C7. Frank -----Original Message----- From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Pete@TCC Sent: Friday, May 16, 2014 11:15 AM To: Jean-Francois Mezei; nanog@nanog.org Subject: Re: FTTH ONTs and routers There are many ONTs out there with various abilities. I can only comment on what I deploy, and what various telcos deploy that I am familiar with. A few years ago, all of our AE and GPON ONTs were deployed as bridges. Port 1 was generally an Internet VLAN, and port 2,3,4 were IPTV VLANs. We have been using Occam (now Calix), but are considering other options at this point. Currently we bridge all services on GPON deployments, but rent routers for the Internet service if customers do not wish to provide their own. The 700-series ONTs are able to bounce between GPON and AE deployments with a firmware change, so they are very flexible. Calix has apparently released RG code (Residential Gateway, basic home router functionality) for for the 700s, but we don't use that code. We also deploy 836 ONTs, which had RG code built-in on release, and also WiFi. The 836s currently only do AE, but were originally supposed to do GPON/AE similar to the 700-series. Today, the standard AE deployment is an 836 with RG code enabled for WiFi and Port 1. WAN is DHCP, authorized with Option 82/RADIUS for bandwidth profiles. LAN does NAT, and hands out a 192.168.88.0/24 subnet to break as few consumer routers as possible. We have no problem enabling bridging for Port 1 if the customer requests it. We bridge Port 2,3,4 for IPTV because the RG functionality breaks certain features, namely call display on the TVs. The 836s can do Static, PPPoE, or DHCP on the WAN side. We use MGCP for voice. -- Pete Baldwin On 14-05-15 01:11 PM, Jean-Francois Mezei wrote:
It had been my impression that ONTs, like most other consumer modems, came with built-in router capabilities (along with ATA for voice).
The assertion that ONTs have built-in routing capabilities has been challenged.
Can anyone confirm whether ONTs generally have routing (aka: home router that does the PPPoE or DHCP and then NAT for home) capabilities?
Are there examples where a telco has deployed ONTs with the router built-in and enabled ? Or would almost all FTTH deployments be made with any routing disabled and the ONT acting as a pure ethernet bridge ?
(I appreciate your help on this as I am time constrained to do research).