nanog mailing list archives
RE: SIP on FTTH systems
From: "Frank Bulk" <frnkblk () iname com>
Date: Thu, 6 Feb 2014 23:00:13 -0600
And then you need MACFF to overcome the split-horizon to that customers in the same subnet can talk to each other. =) Frank -----Original Message----- From: Mark Tinka [mailto:mark.tinka () seacom mu] Sent: Thursday, February 06, 2014 8:09 AM To: nanog () nanog org Subject: Re: SIP on FTTH systems On Thursday, February 06, 2014 03:51:51 PM Anders Löwinger wrote:
This is a deep hole, and basically does not work with IPv6. You need a bunch of stuff, proxy ND, proxy DAD, DHCPv6 inspection, RA guard and more. One VLAN per customer and a separate multicast is much simpler.
If you have a reasonably intelligent AN (like some of today's Active-E devices), you can create so-called split horizons on the same bridge domain (VLAN, really) where customers will only communicate via the upstream BNG at Layer 3. At Layer 2, even though they are all sitting on the same VLAN, there is no inter-communication between them. I've also know Huawei OLT's support these split horizons too.
Or do something bold, run L3 at the edge :)
BNG's are too big to distributed that deeply, even in distributed BNG designs. This would get costly. Cheap switches that have decent IP/MPLS support are mostly geared toward Metro-E deployments, i.e., business-grade services. So they are quite poor with regard to susbcriber management features and capabilities. Mark.
Current thread:
- Re: SIP on FTTH systems, (continued)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 06)
- Re: SIP on FTTH systems Mark Tinka (Feb 06)
- Re: SIP on FTTH systems Anders Löwinger (Feb 06)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 06)
- Re: SIP on FTTH systems Mark Tinka (Feb 06)
- Re: SIP on FTTH systems Anders Löwinger (Feb 07)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 07)
- Re: SIP on FTTH systems Mark Tinka (Feb 06)
- Re: SIP on FTTH systems Anders Löwinger (Feb 07)
- Re: SIP on FTTH systems Mark Tinka (Feb 07)
- RE: SIP on FTTH systems Frank Bulk (Feb 06)
- Re: SIP on FTTH systems Jay Ashworth (Feb 06)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 06)
- Re: SIP on FTTH systems Jay Ashworth (Feb 06)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 06)
- Re: SIP on FTTH systems Mark Tinka (Feb 07)
- Re: SIP on FTTH systems Anders Löwinger (Feb 07)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 07)
- Re: SIP on FTTH systems Mark Tinka (Feb 07)
- Re: SIP on FTTH systems Mikael Abrahamsson (Feb 07)
- Re: SIP on FTTH systems Mark Tinka (Feb 08)