Many thanks for your information. Thanks and regards, Xu Hu
On 13 Apr, 2012, at 21:52, Bill Blackford <bblackf...@gmail.com> wrote: > This might also help. > > http://www.juniper.net/us/en/local/pdf/implementation-guides/8010076-en.pdf > > When testing CGN, there are some general things to keep in mind: > > 1. Application/Functionality. How do standard applications function > behind the double-nat? > > 2. Performance and scale. What's the load on the service PIC? How many > subs can you expect to nat behind a single, service PIC? At what point > do you need to throw extra hardware at it? > > 3. Placement. Where in your network do you place CGN? BNG/BRAS? > Regional aggregation? Core aggregation? How do you separate dedicated > Internet and business customers from subscribers? Depending on how far > upstream your chosen placement might be, how do you handle dual > egress? > > 4. Logging/tracking subs. How can we log and track each individual > subscriber all natting behind a single address? How verbose does that > logging need to be? There are some nice knobs in 11.2 that > specifically address some of theses issues. > > > > -b > > > > On Fri, Apr 13, 2012 at 12:20 AM, Xu Hu <jstuxuhu0...@gmail.com> wrote: >> Recently heard so many times about CGN, but i still don't understand what >> is the difference between NAT and CGN, can any expert explain what's the >> CGN. >> >> 2012/4/12 Saku Ytti <s...@ytti.fi> >> >>> On (2012-04-12 16:31 +0200), Matthias Brumm wrote: >>> >>>> I would like to know, if no, some or all implementations of CGN will >>>> be working on a MX5? >>> >>> This seems in realms of possibility (1ipv6 statically to 1ipv4) for trio. >>> But if you know you will need CGN I would assume that MX5 will never get >>> it, this way you'll avoid disappointment and possibly need for another box >>> while waiting for needed feature to appear. >>> >>> NAPT (port based, nto1) is not possible as far as I understand on trio, >>> then you'd need some service slot in the behind, which also I would assume >>> never to exist when making purchase decision. >>> >>> -- >>> ++ytti >>> _______________________________________________ >>> juniper-nsp mailing list juniper-nsp@puck.nether.net >>> https://puck.nether.net/mailman/listinfo/juniper-nsp >>> >> _______________________________________________ >> juniper-nsp mailing list juniper-nsp@puck.nether.net >> https://puck.nether.net/mailman/listinfo/juniper-nsp > > > > -- > Bill Blackford > Network Engineer > > Logged into reality and abusing my sudo privileges..... _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp