"The role of home gateways in IPTV services, from a HGI perspective"

Transcription

1 Internatinal Telecmmunicatin Unin "The rle f hme gateways in IPTV services, frm a HGI perspective" Dugerdil Bernard Freescale Semicnductr HGI Bard Member

2 Why the Hme Gateway Initiative (HGI) Unavailability f Hme Gateways prviding full supprt t the telecm peratrs requirements fr triple play services The Hme Gateway is nt seen as a generic advanced mdem-ruter, but a service enabler device and an added value fr bth the custmer and the service Fast answers t urgent needs Critical mass t reduce csts and increase functinalities 2

3 HGI Successful Wrking Methd Fast answers t urgent needs (tp management radmaps frm the Telcs) Shrt-mid term visin (n R&D r visinary perspective) Strng end-t-end architecture Critical mass n a wide set f requirements t reduce cst and time t market Reginal/lcal markets ptins and features will be allwed as add-ns t the main cre f the HG Feedback t relevant SDOs and cperatin with ther bdies HGI is A4 accredited (n prcess t be A5) 3

4 HGI and ther rganizatins HGI is nt a standardizatin bdy HGI is Hme Gateway-centric, but fully integrated with an end t end netwrk and service architecture (QS, management, service prvisining, etc) HGI is rapidly filling the gaps in standards and helping ther rganizatins t be cnsistent with an end t end netwrk and service architecture fr the benefits f the peratrs, the vendrs and the custmers HGI is participating t FGIPTV wrk 4

5 HGI Timeline December 15 th 2004, funded by 9 members March 2 nd 2005: fficial launch Apprx. 66 members (1/4 Telcs) as f September 30 st First week f July 2006, fficial publicatin f Rel.1 specs 1Q-2Q2007: Release 2 5

6 HGI rganizatin and wrking methd Business Grup Requirements Technical Grups HGW/HNA QOS RODM Remte and Hme Netwrk Architecture Hme Netwrk Architecture Hme Gateway Hme Gateway Quality Quality f f Service Service Remte and Device Device Management Management Architecture Task Frce End t End Architecture 6

7 Release 1 Basic statements Netwrk and Service Requirements End t End Reference Architecture Hme Gateway requirements Interfaces Prcessing Cnnectivity Quality f Service Remte Management Service supprt Security Pwering, safety and EMC 7

8 Hme Gateway architecture Basic System features Prcessing perfrmance Pwering Management Cnfiguratin management FW upgrade management QS management. Security m anagement Device management Lcal management appl. Remte management client PSTN interface WAN Interfaces Data flw 4 Classificatin Ruting/NAT Filtering/Encryptin Maintenance Diagnstics Perfrm ance m nitring Cntrl functins Device discvery DHCP, PPP, SIP, IGMP handling Packet prcessing Management flw Queuing/Scheduling Bridging Multicast t unicast cnversin Cntrl flw Service supprt DDNS ALGs VIP terminatin Vice/cmm. services Security Firewall plicies Key managem ent Authenticatin Quality f Service Classificatin Queuing Mapping WLAN security LAN interfaces 8

9 HGI Release 1: IPTV Requirements Bradband IPTV - Digital TV Service 9

10 Reference Mdel 10

11 Custmer Requirements The Hme Gateway must allw the custmer access t the IPTV service The Hme Gateway shuld supprt a unified IP hme netwrk The custmer must be satisfied at all times that the BSP can nly diagnse and view their hme netwrk and the traffic n it, under explicit permissin frm them. The Hme Gateway shuld reinfrce this privacy aspect by sme means 11

12 BSP Requirements The Hme Gateway must supprt prvisining f the IPTV service. The Hme Gateway is required t priritize traffic in the event that there is nt sufficient bandwidth in the hme netwrk and/r in the bradband line t simultaneusly supprt the IPTV stream and ther traffic Nte: if the flw is prtected thrugh sme kind f DRM mechanisms, it is expected that the viewing interface has apprpriate DRM mechanisms. 12

13 HGI Release 1: IPTV Requirements PVR/DVR hme netwrk Strage 13

14 Reference Mdel 14

15 Custmer Requirements The Hme Gateway must allw the custmer t install a PVR/DVR service The Hme Gateway shuld supprt a unified IP hme netwrk The custmer must be satisfied at all times that the BSP can nly diagnse and view their hme netwrk and the traffic n it, under explicit permissin frm them. The Hme Gateway shuld reinfrce this privacy aspect with suitable mechanisms 15

16 BSP Requirements The Hme Gateway must supprt additins f IPTV streams t the hme netwrk. The number f streams may be limited depending n WAN, LAN netwrk capacity The Hme Gateway is required t priritize traffic in the event that there are nt enugh resurces in the hme netwrk t simultaneusly supprt the IPTV stream and ther traffic. 16

17 HGI Release 1: IPTV Requirements Media Gateway Access frm any terminal 17

18 Reference Mdel 18

19 Custmer Requirements The service must be easy t activate and t use The service must be cnvenience t use The service must be reliable and secure (DRM). The service must prvide a high degree f flexibility - add new devices, rder new cntent services 19

20 BSP Requirements The Media Gateway & service platfrm shuld be able t adapt t the device capabilities in terms f rendering the cntent. The Hme Gateway shuld supprt the delivery f several cntent flws t different devices with the apprpriate QS. The Hme Gateway & service must enable an easy and flexible cnnectin f third party equipment (e.g.: Cntent Server). The Hme Gateway must have remte and device management capabilities The Hme Gateway must have a high flexibility fr updates and new service activatin 20

21 IPTV True End-t t-end Service Hme Gateway is the central pint t manage Hme Netwrk QS 21

22 QS Gals Management f key cngestin pints Ptential rate mismatches abund Traffic classificatin and priritizatin Telc-managed services vs unmanaged services Special attentin fr vice/vide Handle Diverse flws in the HG: WAN LAN (dwnstream) LAN WAN (upstream) LAN-LAN (transit) Fcus n QS handling within the HG With guidelines fr LAN cmpnents 22

23 Ptential traffic cngestin pints HG 100 Mbps Lw-rate upstream Access High-rate dwnstream Access High-rate t lw-rate bridge Merging WAN-LAN and transit traffic 100 Mbps 100 Mbps Wireless LAN Ethernet-PLT bridge <10 Mbps Ethernet Switch 100 Mbps 100 Mbps 23

24 Use f DSCP and Layer 2 Markings The HG prvides capabilities f classificatin and marking at layer 3 (DSCP) Layer 2 classificatin in the HG may als be supprted Generally, layer 3 markings (DSCP) are preferred within the LAN We d nt wish t encurage use f VLAN tagging DSCP is ur preferred mechanism t transmit pririty infrmatin t WIFI, Pwerline, etc Recmmended DSCP marking cnsistent with DLNA usage 24

25 Classificatin Classificatin requirements well delineated WAN ingress Multifield classificatin upn layer 4, IP and ethernet fields LAN ingress/wan egress Multifield classificatin upn layer 4, IP and ethernet fields LAN ingress/lan egress Typically, simpler classificatin based nly n MAC SA/DA Exceptin handling (multifield classificatin) fr traffic destined t specified LAN prts 25

26 Queuing Egress queuing mdel Packets are sltted int egress queues depending n classificatin and frwarding decisins Queue requirements WAN egress min 5 queues, 8 suggested strict pririty and WRR scheduling Allws lwest latency t be accrded t vice and flexible allcatin t ther services shaping at class and prt levels LAN egress prts min 4 queues strict pririty and WRR scheduling 26

27 Overlad Prtectin An ptinal mechanism is defined aimed at preserving QS f managed service flws in the upstream Requires identificatin f flw instance using classificatin Befre admitting a new managed service flws t the premium queue, perfrmance is first tested in a lwer pririty queue This mechanism ensures that already identified flws will nt be adversely impacted by newly admitted flws 27

28 Cngestin Management Cngestin management is a required cnfigurable capability n all queues Randm Early Discard The purpse is t imprve perfrmance f TCP riented traffic in the presence f cngestin Particularly applicable t upstream link 28

29 Flw types - details Managed Services are typically WAN LAN r LAN WAN LAN-LAN flws are a grey zne. Typically these are unmanaged, BUT Service prvider may wish t prvide QS assistance t sme LAN-LAN flws Example: VD dwnlad t be streamed t STB at a later time acrss the hme LAN. Means t prevent LAN-LAN flws frm disrupting managed WAN LAN flws Fixed queue allcatin scheme Optinal deep classificatin f LAN-LAN flws 29

30 Management f QS Functins Phase 1 release f HGI builds upn DSL Frum prtcls fr managing HG QS capabilities Management frm a service prvider s Aut- Cnfiguratin Server (ACS) TR-069 (CWMP) prtcl TR-098 Data Mdel HGI specific QS prfile fr TR

31 Cnclusins The Hme Gateway is a key element within the IPTV chain Hme Netwrking cngestin is a fact. HG QS mechanism must be able t guarantee IPTV flw within Hme Netwrk (HN) HG QS Management frm IPTV service prvider is needed Use f DSL Frum TR-069 and ACS (Autcnfiguratin server) IPTV ver IMS is a pen questin. HGI release 2 will be IMS cmpatible (IMS prxy) HGI is cnsidered as a key element in the IPTV scenari BUT we need urgently an FGIPTV recmmendatin and guideline FGIPTV must elabrate different scenaris 31

32 Questins? 32