cAse sTUDY




                                consolidated communications
                                corporation iPT...
consolidated communications corporation
            cAse sTUDY
                                                        iPT...
consolidated communications corporation
       cAse sTUDY
                               iPTV Triple Play case study



  ...
consolidated communications corporation
cAse sTUDY
             iPTV Triple Play case study




             Figure 1: Con...
consolidated communications corporation
cAse sTUDY
             iPTV Triple Play case study




             Figure 2: Con...
consolidated communications corporation
       cAse sTUDY
                                 iPTV Triple Play case study



...
consolidated communications corporation
      cAse sTUDY
                                                   iPTV Triple Pl...
Upcoming SlideShare
Loading in …5
×

consolidated communications corporation iPTV Triple Play case ...

1,319 views

Published on

Published in: Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,319
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
9
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

consolidated communications corporation iPTV Triple Play case ...

  1. 1. cAse sTUDY consolidated communications corporation iPTV Triple Play case study CCI strives to be recog­ Background Consolidated Communications Inc. has been in business since 1894, nized as a service leader, providing telecommunications services as a Local Exchange carrier especially in Broadband (LEC). Headquartered in Mattoon, Illinois, Consolidated Communications services. To support that, has more than 280,000 subscriber lines between its Illinois and Texas operating areas as a result of its purchase of TXU Communications CCI has built its network with its 170,000 access lines in Southeast Texas. Consolidated and infrastructure to Communications became a public company in 2005 aster 110 years reflect the newest in of private ownership. Today, Consolidated Communications stands as technology coupledwith the 17th largest U.S. telephone company. It provides a full range of residential and business services, from POTS to broadband, including the best possible reliabil­ IPTV Triple Play. ity and performance. CCI strives to be recognized as a service leader, especially in Broadband services. To support that, CCI has built its network and infrastructure to reflect the newest in technology coupled with the best possible reliability and performance. These factors played a big part in their decision to launch IPTV and triple play in 2004. CCI was familiar with the earlier video deployments using ATM and Switched Digital Video (SDV), and decided to approach its network design using packet based IPTV while still leveraging the types of features and technology that had proven successful with ATM based SDV. As of 2006, CCI has 5,500 paying IPTV customers in Illinois and growing weekly, and is began its IPTV implementation and expansion in the much larger Texas market in mid-2006. Z hone Technologies
  2. 2. consolidated communications corporation cAse sTUDY iPTV Triple Play case study The network The first place to start IPTV implementation is in network design and architecture. Using Gigabit Ethernet offered superior video capacity over OC-12 SONET, and newly released ADSL2+ offered the down- stream bandwidth to support multi-stream video yet still had a reach that economically satisfied the business case over such alternatives as QAM VDSL. Since the service model is triple play, it was neces- sary to have an access platform that supported a mix of voice, data and video services. CCI selected the Zhone MALC Broadband Loop One of the key features Carrier (BLC) as its triple play access platform as a result. MALC not only supported multiple services and IP packet, but also had was IGMPV2 Proxy, the features and intelligence needed to support IPTV as well. One which would allow CCI of the key features was IGMPV2 Proxy, which would allow CCI to to provide distributed provide distributed multicast at the access edge and enable Scaling deployment without network bottlenecks through centralization. multicast at the access Unlike some very small rural Telco’s, CCI serves a number of dense edge and enable scal­ metro type markets. As a result, many MALC access nodes would ing deployment without have hundreds of IPTV subscribers on it. Rather than the typical 24-96 network bottlenecks subscribers served from most DSLAM’s used in rural Telco’s for IPTV, through centralization. CCI foresaw as many as 500 subscribers per node. Therefore, scal- ability became a key factor, best served through distributed multicast. The second part of the decision was service quality and reliability. CCI want its network to have built in the highest performance capability and reliability possible, which favored moving IPTV service control and management to the access edge nearest to the subscribers. CCI has the option of using MALC 319 or 723 units depending on port density needed, as either uses the same line cards and uplinks. Using ADSL2+, line density per node can have either 384 or 960 without POTS. Placing the access node within 8,000 feet of the subscriber, either in central offices or remote cabinets, allows delivery of 15 Mb/s on average over their 24 gauge twisted pair copper to support their multi-stream IPTV offering. Currently, using MPEG-2, CCI encodes each channel at 3.5 Mb/s with overhead, this having the capability on an ADSL2+ line to deliver 3 concurrent video streams plus voice, with 2 Mb/s or more left over for data. Consolidated Communications headquarters, Mattoon, IL Z hone Technologies
  3. 3. consolidated communications corporation cAse sTUDY iPTV Triple Play case study While most DSLAM’s and many Telco’s were opting to implement IPTV using IGMP snooping at the access edge and let the core router handle the actual multicast, CCI decided to Select MALC for its ability to act as a multicast router for IPTV using IGMP Proxy. This eliminated the need to rely on a core router to control all multicast across the subscriber network and distribute multicast to the node level nearest to the subscriber. Whereas most access systems, DSLAM’s or BLC’s, operated as Layer 2 IP devices doing only snooping, MALC was a true Layer 3 multicast device with a multicast back plane. Doing routed rather than Knowing the importance bridged IGMP multicast video is a little more time consuming to provi- sion at the outset, but CCI believed the payback in performance and reli- of vendor­to­vendor ability combined with the ability to rapidly scale up take rates without technology cooperation, having to re-design the core network for the load was worth the effort. CCI carefully assessed By leveraging Layer 3 functionality in the MALC for IPTV, it was not the partnerships and necessary to use the core router for control and management of multi- cast, or to add a number of local edge routers as others had done to relationships between the handle channel change volume effectively. To save money and make vendors and wanted to actual video transport and distribution simpler, CCI selected Foundry see the system integrat­ to provide a core Layer 2 Ethernet switch which acts as an aggrega- tion and distribution hub between the head end and access for video. ed prior to deployment. To suit that purpose, Foundry Networks was selected for their dense but scalable Gigabit Ethernet switches in the backbone network. Broadcast IP video is streamed using IGMP over a routed VLAN from the head end source and distributed to subtending MALC nodes by the Foundry switch. Each MALC then uses its imbedded IGMP proxy to process joins and leaves at the node level for fast and consistent channel change performance. By implementing IGMP Proxy, CCI could also use Active Query and IGMP Filtering to optimize IPTV service performance in the network. CCI strongly believes 99.999% availability is needed in the IP world, thus designing its network to have the fewest number of bottlenecks or single points of failure as possible (or economically feasible). To complete the transport network, CCI used Turin networks for inter-office trunking and to go between SONET and ATM since it supported the use of VLAN for routed video. Having designed a core and access network with both the capacity and functionality necessary to support high quality IPTV and triple play, CCI then needed to build the actual video system. Z hone Technologies
  4. 4. consolidated communications corporation cAse sTUDY iPTV Triple Play case study Figure 1: Consolidated Communications use of routed multicast from MALC using IGMPv2 Proxy with an ethernet switch The video system CCI had a clear vision of the services and capabilities it needed for cable-competitive IPTV services. They first selected Tut Systems Astria as their head end system. Tut is widely deployed in ILEC’s and has a strong reputation for performance and capability. They then chose Myrio (now a Siemens company) for its middleware solu- tion, based once again on a proven track record. For its set top, CCI chose Entone and the Hydra, a 3 stream residential gateway box based in large part on proven successes with the ATM SDV system that used its own proprietary residential gateway. They also selected Entone to provide the VOD servers and solution. Knowing the importance of vendor-to-vendor technology cooperation, CCI carefully assessed the partnerships and relationships between the vendors and wanted to see the system integrated prior to deploy- ment. With Zhone having a large test lab with a $50M investment, Zhone stepped in to provide integration support. The CCI network and system was re-created in the test lab and CCI participated at Zhone Z hone Technologies
  5. 5. consolidated communications corporation cAse sTUDY iPTV Triple Play case study Figure 2: Consolidated Communications IPTV system in testing. Zhone documented test results and problems, following up with the vendors in a cooperative effort to iron out any bugs. By the time CCI turned its system up, it was well tested and ready to go. In the final stages, CCI chose Verimatrix to provide Conditional Access (content encryption) as a studio requirement for offering digital content over IPTV. And Coaxsys was selected to provide their Ethernet-to-coax device that allowed re-use of in home coax to set tops and TV’s that significantly reduces home installation time and costs. Zhone participated in testing a variety of ADSL2+ modems as another part of the network certification process. Z hone Technologies
  6. 6. consolidated communications corporation cAse sTUDY iPTV Triple Play case study CCI service story CCI offers subscribers what brands as DVS (Digital Video Service) IPTV. It calls its bundled triples play “Take3”. The IPTV plan includes over 200 digital channels of local, regional and national programming along with the full suite of premium channels. Additionally 45 digital music, 400 hours of VOD and iPPV TV service are offered as part of the IPTV offering. To enhance to subscriber experience and differentiate from local cable CCI is a case study offerings, CCI offers Caller ID/TV and its own walled garden Internet TV browser using Cloverleaf technology. Both legacy POTS and VoIP are example of fully utilizing offered, along with a range of high speed data services. CCI has enjoyed the power of intelligent a 39% growth in its DSL data business since offering bundled triple play, access and IGMP Proxy a number common among most carriers offering IPTV bundled services. to build a highly reliable, CCI is already preparing for the future, which includes HDTV. Tut Systems is working with CCI in both Illinois and Texas to upgrade the high performance and head end to MPEG-4 AVC to reduce current bandwidth requirements easily scalable triple using MPEG-2 by 50% or more. Likewise, new MPEG-4 set tops and play network. next generation middleware is under test. New technologies including bonded ADSL2+, VDSL2 and FTTP are all being looked at for future use as bandwidth and service demands increase. Fortunately for CCI, the Zhone MALC can support all of these new broadband capabilities from the same platform currently used for ADSL2+ as a matter of slot provisioning line cards. For CCI, the savings are tremendous over time by not having to invest in overlay systems nor replace existing ones. Like every operator, CCI found the process of content acquisition with studios to be arduous and painstaking. To minimize their pain CCI relied on NCTC (National Cable Telephone Cooperative) to secure much of its broadcast content through aggregation. Verimatrix helped CCI with gaining studio sign-off on content protection, another hurdle operators face. CCI selected ViewNow, a content provider owned by Kasenna, to provide VOD content on an aggregated basis. Z hone Technologies
  7. 7. consolidated communications corporation cAse sTUDY iPTV Triple Play case study Conclusions “ Consolidated Communications CCI is a case study example of fully utilizing the power of intelligent access and IGMP Proxy to build a highly reliable, high performance and easily scalable triple play network. Because of its markets served began offering Triple along with size, CCI could not risk compromises in performance by Play services several using more traditional IGMP snooping and multicast bridging through a core router as its architecture. As a result, the backbone transport years ago after selecting network is economically optimized for distributing video, with control Zhone and the MALC and management distributed at the closest point to the subscriber. The as our access platform. Tom White, VP Engineering, Consolidated Communications, Inc. ” flexibility, scalability and performance routed multicast can deliver is demonstrated by CCI and its 5,500 and growing customer base of IPTV subscribers, attesting to the performance and upwards imbedded IGMP multicast in access delivers. The selection and relationships of the vendors providing the complete IPTV solution is significant too. Each of the vendors CCI uses are also Zhone technology partners. The ability to get test lab support and pre- deployment integration and functional testing as a system in a single facility offloads CCI from a lot of the time and resources many carriers need to go through. Zhone performed extensive testing with CCI’s set top/residential gateway vendor, middleware vendor and Head end systems vendor in its Multimedia Lab with cooperation and support of the partners to ensure CCI’s expectations were met. This testing includes a variety of load testing to measure performance under peak conditions. Zhone Technologies, Inc. For more information about Zhone and its products, please visit the Zhone Web site at www.zhone.com @ Zhone Way or e-mail info@zhone.com 7001 Oakport Street Zhone, the Zhone logo, and all Zhone product names are trademarks of Zhone Technologies, Inc. Other brand and product names are Oakland, CA 94621 trademarks of their respective holders. Specifications, products, and/or product names are all subject to change without notice. 510.777.7000 phone Copyright 2007 Zhone Technologies, Inc. All rights reserved. www.zhone.com CCI_CS_0107 Z hone Technologies

×