Subject: [rbridge] cheer up!!

From: jaihyung at etri.re.kr (CHO, JAI HYUNG)
Date: Fri, 11 Mar 2005 08:27:12 +0900

Dear TRILL people I think what you guys have done today was great job.The number of people attended in the room manifests big interest on rbridge.The only reason people wasn't fully convinced is because (I think) there wasn't enough explanation on necessity and uniqueness of the work. Part of the reason I am interested in rbridge is because it may provideversatile tool for controlling L2 flows using IP protocols. Such functionis much required in access network where many low-end L2 switchesneeds to be controlled by remote BRAS routers. BRAS is the point that has to distinguish and authenticate user flows, protect premium flows and charge by usage. However, current designof low-end L2 switches doesn't interact with remote routers and giveenough information of user flows. I am wondering TRILL people have discussed potential application of rbridge in this respect. Bringing IP routing capability on L2 bridges is a fancy idea, howeverit seems not much practical benefit is expected just from routing service.However, if it is for L2 switches to pass user information to routersand get traffic control of routers, situation might have been differentbecause it means commercial profit of providers. Application of such service to enterprise network and campus network also has significant meaning because ISPs may have tangible controlon commercial flows across private network. I think it is necessary at this stage to discuss more on potential area ofservice and application rather than focusing on technical solution.If people are open to discuss this matter, I'll submit some requirement and service scenario of such hybrid switch. Hope to have good discussion on this matter. Thank you Regards.... 
 
Dr. Jaihyung Cho
ETRI, Korea
phone :       042) 860-5514
oversea: +82-42-860-5514
fax:         +82-42-861-5550