Hi Hui,
----- Original Message ---- > From: Hui Deng <[email protected]> > To: "Durand, Alain" <[email protected]> > Cc: ietf softwire <[email protected]> > Sent: Wed, November 25, 2009 9:47:04 AM > Subject: Re: [Softwires] Discussion on the requirements of Host Based > Translation > > Inline please > > 2009/11/25 Durand, Alain : > > It is actually fairly easy to scale... Use a copy of Net 10 for each of your > > access router... > then inter access router doesn't work > > > In the end, this all depend on your access topology, where the first L3 node > > is and where you intend to put the AFTR. > exactly, for my knowledge, this L3 node is not the same location as NAT. > > > If both are co-located, then solution like gateway initiated DS-lite or > > simply assigning a regular IPv4 address are really much simpler. > > > If the AFTR is a little further inside the network, the complexity price to > > pay for shortcuts may not be justified. If the AFTR is way inside the > > network, then shortcuts may be useful. Note: The ‘v4 scopes’ does not have > > to match the AFTR scope... It has to match the scope of the entity that > > proxy-manages IP address allocation, typically the first L3 router acting as > > DHCP-relay. > isn't it sounds complexity network operation, it will be quite hard to > support roaming. In general this is true. However by carefully placing AFTR we can handle mobility. In draft-sarikaya-softwire-dslitemobility-01 we have collocated AFTR with either HA or LMA. Also you need to coordinate NAT operations with binding cache searches. In fact DS-Lite becomes a good match with PMIPv6 or DSMIP protocols. Regards, Behcet _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
