That is Half II of a three-blog collection on options to beat challenges related to bridging the digital divide.
Within the earlier weblog (see Bridging the Digital Divide with Subscriber Edge), we mentioned the standard broadband community design. On this weblog, we’ll give attention to a brand new structure for broadband networks, and the challenges that they handle.
Transferring to a distributed structure
The flexibility to allow subscriber capabilities on completely different layers or gadgets within the community offers a possibility to optimally place subscriber edge within the community to assist match economical and user-experience wants. For instance, on condition that video quantities to greater than 75% of the quantity of complete subscriber visitors, versatile termination permits for the environment friendly offload of video visitors nearer to the subscriber by cautious placement of content material caches and the addition of peering factors. Distributed termination of subscribers improves the general consumer expertise because the visitors follows a extra splendid path that optimizes capability utilization and helps decrease latency for demanding functions.
With this distributed structure, communication service suppliers (CSPs) can save prices by lowering unneeded bandwidth upgrades of your complete community by visitors offload additional downstream. Nonetheless, with extra distributed placement of subscriber edge capabilities utilizing completely different termination fashions, CSPs could face challenges with scaling, managing, and working subscriber companies networks.
To resolve these challenges, Broadband Discussion board outlined the Management and Consumer Aircraft Separation (CUPS) mannequin for the Broadband Community Gateway (BNG) in TR-459 (see Determine 1). CUPS allows distribution of consumer/knowledge planes nearer to the subscriber, permitting the management aircraft operate to be centralized. This can be a important change from the standard BNG structure—the place management aircraft and consumer aircraft capabilities are tightly built-in and carried out by the identical gadget. This new distributed architectural method takes benefit of CUPS to supply newer broadband companies and use circumstances which might be completely different from conventional choices.
Centralizing the management aircraft operate helps decrease operational prices in a distributed subscriber edge operate that may be non-uniform with various necessities on scalability, kind issue, and function.
CUPS additionally allows new income streams or fashions, which weren’t potential with the standard structure, akin to differentiated service plans. For instance, service suppliers can provide a day/night time plan, the place subscribers are provisioned or moved to a smaller set of consumer planes in the course of the night time for price financial savings and potential sustainability advantages.
Clients can even provide tiered plans with Platinum, Gold, and Finest-Effort, based mostly on redundancy capabilities to assist shield premium subscribers from consumer aircraft, entry, or website failures. With the management aircraft not tightly built-in with the consumer aircraft, and full visibility of all consumer planes, CUPS allows larger flexibility for CSPs to seamlessly transfer subscribers to completely different nodes with out disruption.
The newest growth by the Broadband Discussion board is Subject 2 of TR-459 Multi-Service Disaggregated BNG with CUPS specification (see Figure2), which allows improved resiliency, scalability, and sooner deployment occasions to assist present a greater end-user expertise with a extra dependable and constant service.
Within the third weblog, we’ll share particulars on the Cisco Subscriber Edge answer, together with the structure, technical benefits, and buyer advantages.
Get began right now reimagining your gateway structure with
Share:
Supply hyperlink
