1. IETF72 ANCP WG1 ANCP Applicability to PON draft-bitar-wadhwa-ancp-pon-00.txt Nabil Bitar, Verizon Sanjay Wadhwa, Juniper Networks

2. IETF72 ANCP WG2 Agenda  PON Specific Terminology  Drivers for ANCP in PON based Broadband Networks  Use Cases  Proposal

3. IETF72 ANCP WG3 PON Specific Terminology  PON  Point to Multipoint fiber to the premise (or curb) network architecture in which unpowered splitters are used to split an optical signal on single optical fiber from CO to multiple premises  Access Node Complex (ANX)  The Access Node decomposed by two geographical functions, performed by OLT and ONU/ONT. The general term Access Node (ANX) is used when describing functionality which doesn't depend on the physical location but rather on the "black box" behavior of OLT and ONU/ONT  OLT (Optical Line Terminal) : Located in the Service provider's central office. Terminates and aggregates multiple PONs on the user side, and interfaces with the service element (NAS) providing subscriber management.  ONT (Optical Network Terminal) : terminates PON on the network side and provides PON adaptation. User-side interface and location dependent upon Network Deployment.

4. IETF72 ANCP WG4 Drivers for ANCP in PON based Broadband Networks  ONT (contd).  FTTP : Fiber all the way to the premises. ONT has Ethernet (FE/GE) connectivity with HGW. In case of MDU, multi-subscriber ONU resides in basement or wiring closet and has FE/GE connectivity with each CPE.  FTTC : Fiber terminated outside the premise. Last leg could be via xDSL (typically VDSL). OLT and ONT together referred to as “PON FED DSLAM”.  PON-Customer-ID  Identifier which uniquely identifies the ANX, and the access loop logical port to the customer premise. Logically composed of information containing identification of the OLT, the PON port on the OLT, the ONT, and the port on the ONT. When acting as an intermediate agent, the OLT can encode PON-Customer-ID in the "Agent-Circuit-Identifier" Sub-option in Option-82 of the DHCP messages.

5. IETF72 ANCP WG5 Drivers for ANCP in PON based Broadband Networks  Tight coordination required between NAS and ANX to implement triple-play services with necessary QoE, including end-2-end bandwidth optimized video delivery.  Coordination also required between components of ANX (OLT and ONT) for optimized video delivery.  Interaction needs to be real-time as services are requested via network or application level signaling.

6. IETF72 ANCP WG6 Use Cases  Unified Video Resource Control  Multicast Admission Control  VoD Admission Control  Multicast Conditional Access  Access Topology Discovery  Remote Connectivity Check

7. IETF72 ANCP WG7 High Level Communication Framework NAS OLTONT PON ONT HGW ANCP Control Request Control Response Control Request Admission Request Admission Response Information Request ANCP Information Request

8. IETF72 ANCP WG8 Unified Video Resource Control Option1: All control Centralized on NAS  Access and admission control for multicast performed by NAS.  IGMP from the subscriber is processed and terminated on the NAS.  Multicast replication distributed to ANX (ONT and OLT) under the control of NAS  NAS also participates in bandwidth-based admission control for VoD (triggered by VoD signaling and a policy manager query).

9. IETF72 ANCP WG9 Unified Video Resource Control Option1: All control Centralized on NAS (cont.)  NAS performs video (unicast and multicast) bandwidth accounting  Bandwidth-based admission control takes into account the following constraints:  Subscriber Bandwidth  PON Bandwidth  OLT-NAS Link Bandwidth

10. IETF72 ANCP WG10 Unified Video Resource Control Option1: All control Centralized on NAS (cont.) NAS OLTONT PON ONT HGW ANCP IGMP JOIN (S/*, G) Access Control & Subscriber B/W, PON B/W and OLT Link B/W based Admission Control ANCP Replication Start {, Customer-Port-ID} ANCP Replication Start {, Customer-Port-ID} Multicast Flow (S,G) on Multicast VLAN Multicast Flow (S,G) forwarded on unidirectional on the PON by OLT. Multicast Flow (S,G) forwarded on Customer-Port by ONT/ONU.

11. IETF72 ANCP WG11 Unified Video Resource Control Option1: All control Centralized on NAS (cont.) NAS OLTONT PON ONT HGW ANCP IGMP LEAVE (S/*, G) Admission Control ANCP Replication Stop {, Customer-Port-ID} ANCP Replication Stop {, Customer-Port-ID}

12. IETF72 ANCP WG12 Unified Video Resource Control Option1: All control Centralized on NAS (cont.) NAS OLTONU PON ONT HGW ANCP Subscriber B/W, PON B/W and OLT Link B/W based Admission Control Policy Server Application Server Admission Request Admission Response VoD Request Admission Request Admission Response

13. IETF72 ANCP WG13 Unified Video Resource Control Option2: All control Centralized on NAS  ANX (OLT and ONT) snoops IGMP to create replication state.  ANX performs bandwidth admission control on PON bandwidth.  NAS performs bandwidth admission control on subscriber bandwidth and OLT link bandwidth triggered by “admission requests” from ANX for multicast.  NAS interacts with OLT using ANCP (for PON bandwidth accounting) to do admission control for VoD.

14. IETF72 ANCP WG14 Unified Video Resource Control Option2: All control Centralized on NAS NAS OLTONT PON HGW ANCP IGMP JOIN (S/*, G) Subscriber B/W & OLT Link BW Admission Control Admission-Request { Flow, Customer-Port-ID} IGMP Snooping Access Control & PON B/W Admission Control Pass Admission-Request { Flow, Customer-Port-ID} Admission-Reply-Pass { Flow, Customer-Port-ID} Update Replication State Admission-Reply-Pass { Flow, Customer-Port-ID} Update Replication State Access Control

15. IETF72 ANCP WG15 Unified Video Resource Control Option2: All control Centralized on NAS NAS OLTONU PON HGW ANCP IGMP JOIN (S/*, G) Subscriber B/W & OLT Link BW Admission Control Admission-Request { Flow, Customer-Port-ID} IGMP Snooping Access Control & PON B/W Admission Control Pass Admission-Request { Flow, Customer-Port-ID} Admission-Reply-Fail { Flow, Customer-Port-ID} Release PON B/W Update Replication State Admission-Reply-Fail { Flow, Customer-Port-ID} Remove Replication State Fail Access Control

16. IETF72 ANCP WG16 Unified Video Resource Control Option2: All control Centralized on NAS NAS OLTONU PON ONT HGW ANCP Policy Server Application Server Admission Request Admission Response VoD Request Admission Request Admission Response Subscriber B/W and OLT Link B/W Admission Control Admission-Request { Bandwidth, Customer-Port-ID} PON B/W Admission Control Pass Admission-Response { Customer-Port-ID}

17. IETF72 ANCP WG17 Multicast Conditional Access  Two approaches for Network based Conditional Access: 1.Centralized on NAS. It could be triggered by “admission request” from ANX using ANCP. 2.Distributed to ANX (OLT and ONT). White and Black lists provisioned on OLT and ONT by NAS using ANCP.  Access to groups in the Black list dropped closest to the subscriber (on the ONT).  Requests for group which are not blocked by Black list can be propagated upstream towards OLT and NAS for bandwidth based admission control.

18. IETF72 ANCP WG18 Access Topology Discovery  NAS can discover DSL sync rate via ANCP for DSL local loops on a PON-fed Access Node.  ONT (GPON Fed AN) can inform the sync rate via ANCP to the OLT.  OLT can inform the sync rate via ANCP to the OLT.  OLT can also inform the bandwidth of the OLT uplink to the BNG (this is relatively static, but NAS needs to always have an accurate picture of the available bandwidth on OLT uplink ). NAS OLT GPON Fed DSLAM PON ONT HGW ANCP HGW DSL1 DSL2 DSLn ANCP

19. IETF72 ANCP WG19 Remote Connectivity Checks  Triggered by a local management interface, the NAS can use the ANCP (Control Request Message) to initiate an Access Loop test between Access Node and HGW.  On reception of the ANCP message, the OLT can trigger native OAM procedures defined for BPON in [G.983.1] and for GPON in [G.984.1].  The Access Node can send the result of the test to the NAS via a Control Response message.

20. IETF72 ANCP WG20 Proposal  Incorporate use-cases for ANCP as applicable to PON, and corresponding requirements for ANX and BNG, into the ANCP framework draft.  Add protocol extensions, and corresponding handling on ANX and BNG for these use-cases to the protocol draft.

21. IETF72 ANCP WG21 Questions/Discussion Thanks!