Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

Re: [EFM] OAM loop back / echo server function


As a carrier, I concur with your thoughts including your comment that bridging as
an access solution for residential users is a "bad idea".


Carlos Ribeiro wrote:

> At 17:29 30/08/01 +0100, Bob Barrett wrote:
> >Remote loop back of Ethernet packets / 802.3 frames is a really bad idea.
> >No mater how well intentioned it will go wrong sometimes and when it does
> >it is really bad news.
> I also was late on this discussion, but I have the same opinion. In
> general, thinking as a service provider perspective, each and every user
> should have a logically protected circuit to the
> headend/olt/switch/whatever. Any chance of having packets exchanged
> directly between the users opens a wide door for exploits (or even
> unintentional) problems. In this sense, I believe that EFM should allow only:
> - direct broadcast on the downstream, limited by VLAN, where the service
> provider can control what packets get broadcasted;
> - direct point-to-point communication upstream between the ONU and the OLT.
> For some specific applications, bridging may be a simple solution for the
> direct communication between the endpoints. As an access solution for
> residential users, it is a bad idea.
> Carlos Ribeiro
> CTBC Telecom