plnog14: evolved programmable network, architektura dla sieci operatorskich - krzysztof konkowski

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CCIE #20050 RS, SP

CCDE #2014::18

Evolved Programmable Network Architektura dla sieci operatorskich

© 2015 Cisco and/or its affiliates. All rights reserved. Cisco Public PLNOG 03/2015 2

Agenda

§ EPN Concept & Overview

§ Transport

§ Service Infrastructure

§ Subscriber & Service Control

§ Summary


EPN System Concept EPN is the fusion of network and cloud through programmable interfaces to deliver a platform for service provider innovation and differentiation

It enables Transport, Service Infrastructure, Subscriber Experience Convergence to deliver for service provider:

Cost Optimization •  Self Network Organization (Programmable)

•  Transport Convergence with Unified MPLS and Any Access

•  Service Infrastructure Convergence with Network Virtualization and Integration

Improving Customer Retention •  Seamless Service Mobility and Access

•  Unified Subscriber Experience at any level and Services across any access

Increasing and Facilitating Monetization •  Personalization of the subscriber experience be that over fixed or mobile access, consumer or business, VPN or Household or

Mobile Device


Unified MPLS Transport

Integrated MSE, BNG, WAG, SecGW, CGN

Virtualized PGW, BRAS

Virtualized RR, PCRF, CPEs

EPN Release 4 Concept

Enterprise FMC

Corporate

Residential FMC

IP

Residential Convergence: •  Common Service Experience

Business Convergence: •  Unified MPLS VPN experience •  Seamless and Personalized BYOD remote

access and VPN Access

nV MPLS Ethernet

nV MPLS Ethernet



Fixed Edge Mobile Edge Converged DPI Fixed CGN

Fixed PCRF

Unified Subscriber Experience Seamless Subscriber Mobility

Mobile MAG

Fixed MAG LMA MPC

EPN Release 4 Components

Enterprise Fixed

Corporate

Residential Fixed

IP

FAN ASR-920 ME3600X

PAN ASR-903

PAN-SE ASR-9001

AGN-SE PAN-SE ASR-900X

AGN-SE PAN-SE ASR-900X

CN CRS-3

NMS Prime Network & Home AAA, PCRF

Quantum Policy Server

DHCP Cisco PNR

FAN (PON, DSL, Ethernet) ME 4600, 2600

CSG ASR 901 ASR-920 CPEs: vHN, CSR-1000v, ISR, ASR1k

Virtualized Route Reflector Virtualized PGW, BRAS, CPE, VXLAN GW

FAN (PON, DSL, Ethernet) ME 4600, 2600

OpenStack Orchestration


EPN Deliverables

DIG – Design and Implementation Guidehttp://www.cisco.com/c/en/us/solutions/enterprise/design-zone-service-provider/programmable-network.html#~info-customer

http://www.cisco.com/c/en/us/solutions/service-provider/network-infrastructure/index.html

EPN – Evolved Programmable Network

§  Systems Development Unit

§  Create & test architecture in lab

§  Quaterly updates – current EPN 4.0

§  Lab verification of end-to-end arch

§  Result – documents summarizing services configuration, designs, i.e.:

•  Datasheets •  System Concepts •  Design & Implementation Guides

§  Available from Cisco SEs or based on Cisco.com login

•  Ask Cisco Engineers for test reports


Agenda


§ Transport § Service Infrastructure


§ Summary


MPLS as transport technology

§  MPLS does already satisfy number of NGN convergence requirements Packet Oriented: Supporting both connection-oriented and connection-less transport applications

Compatible with heterogeneous access networks and their properties

Proven by widespread adoption in Core, Edge and Aggregation Full breadth of services enabling per domain convergence

MPLS IP service awareness yields an advantage for optimal delivery of L3 and L4-L7 high-touch services

§  MPLS – Proven Standards Based Convergence Technology


MPLS Problem Statement

§  Traditional MPLS Challenges – Scale – End to End provisioning

– Network recovery time from Failure and operationally complex TE set up

Unified MPLS addresses these challenges with elegant simplicity

§  Common MPLS technology from Core, Aggregation, Pre-agg and access

§  RFC 3107 label allocation to introduce hierarchy for scale

§  Loop Free Alternates FRR for 50 msec convergence with no configuration required (LFA FRR and Remote LFA FRR )

§  BGP Prefix Independence Convergence to make 3107 hierarchy converge


MPLS MPLS MPLS

Unified MPLS Transport Concept

Access AGG AGG LER LSR LER

AGG AGG Access

Operational Points

MPLS

§  MPLS introduction only eliminates some static configuration Service must be configured at every domain boundary

§  Goal – minimize number of operational points

§  Unified MPLS integrated all islands Configuration only at service end points


1 IGP Label 2 3 4 swap PHP PHP PHP

Unified MPLS 101

IGP1, IGP3, IGP3 … can be different OSPF/ISIS processes or ISIS L1/L2 or OSPF area 0 and X

IGP1 & Link LDP IGP2 & Link LDP IGP3 & Link LDP Loopback Loopback

Infrastructure

iBGP iBGP Loopback Loopback

NHS NHS iBGP NHS NHS iBGP RR

1 BGP Label 1 2 2 2 swap “PHP” 1 Service Label 1 1 1 1 1 1

Targeted LDP (PWE3) AC AC L2 Service

iBGP VPNv4 only AC AC L3 Service

iBGP VPNv4 only RR

or

Access & Aggregation (Your POD)

Access & Aggregation (POD 8)

Core

RR P P ABR D PE PE D ABR


Transport Infrastructure

Enabled by Unified MPLS technology

•  Wireline and mobile transport services integration •  Multi access technologies support

•  Hybrid uwaves (P2P, rings), Ethernet Fiber (P2P, G.8032 rings), network Virtualization (nV) •  L1/L2 and L3 access (IP/MPLS)

•  Route Reflector function virtualization •  Access Network Activation Automation

•  Autonomic Networking, Auto IP, EEM •  Microwave Adaptive Code Modulation

•  Multicast transport •  mLDP and IP v4/v6 multicast

•  Carrier class capabilities for HA, OAM and PM support •  Timing synchronization based on Hybrid Clocks architecture


nV MPLS Ethernet

nV MPLS Ethernet

Key

Hig

hlig

hts


Architectural Models The Unified MPLS Transport Network is structured based on Network Size and Access Network Model.

1. Small Network 2. Large Network

TDM/Ethernet/nV Access Service

IP/MP Access Network

Model 1.1 Flat LDP Core and Aggregation Network

Model 1.2 End to end Hierarchical Labeled BGP

Model 2.1 Hierarchical Labeled BGP Core and Aggregation Network

Model 2.2 End to end Hierarchical Labeled BGP

Model 2.3 Labeled BGP Redistribution into Access IGP/LDP (optional LDP DoD)+2.1

Model 1.3 Labeled BGP Redistribution into Access IGP/LDP (optional LDP DoD)

Only Mobile Services

Only Mobile Services


nV MPLS Ethernet

nV MPLS Ethernet


1.1 Small Network, Ethernet/SDH/nV Access

•  Core and Aggregation Networks form one IGP and LDP domain. •  For small aggregation platforms scale target is less than 1000 IGP/LDP nodes.

•  All Mobile and Wireline services are enabled by the Aggregation Nodes. •  Fixed or Mobile Access is based on Ethernet and nV with flexible topologies or P2P TDM/Packet microwave

Aggregation Node

Core and Aggregation\ IP/MPLS Domain

Core Node

Pre-Aggregation Node

Core Node

Core Node

Core Node

IGP/LDP domain






Ethernet nV

Ethernet / nV/ SDH Fixed and Mobile Access

TDM or Packet Microwave FMC Access


1.2 Small Network, Unified MPLS Access

Core and Aggregation IP/MPLS domain

IGP Area



Aggregation Node




Access IP/MPLS Domain

Core Node

Core Node

Core Node

Core Node

LDP LSP LDP LSP LDP LSP

iBGP Hierarchical LSP

•  The Core and Aggregation form a relatively small IGP/LDP domain (1000 nodes) •  The Access is MPLS enabled. Each Access Network forms a different IGP/LDP domain •  The Core/Aggregation and RAN Access Networks are integrated with labelled BGP LSP •  The Access Network Nodes learns only the required service destinations based on inbound or outbound labelled BGP filtering done in Access Node or the Unified MPLS ABR (the Pre-Aggregation Node)

Access IP/MPLS Domain


Core Network IP/MPLS Domain

2.1 Large Network, Ethernet/SDH/nV Access

Aggregation Node

Aggregation Node

Aggregation Node

Aggregation Network IP/MPLS Domain

Aggregation Node

Aggregation Node

Aggregation Node


Core Node

Core Node

Core Node

Core Node

LDP LSP LDP LSP LDP LSP

i/(eBGP) Hierarchical LSP

•  The Core and Aggregation Networks enable Unified MPLS Transport •  The Core and Aggregation Networks are organized as independent IGP/LDP domains •  The network domains are interconnected with hierarchical LSPs based on RFC 3107, BGP IPv4+labels. Intra domain connectivity is based on LDP LSPs •  The Aggregation Node enable Mobile and Wireline Services. Fixed or Mobile Access is based on Ethernet and nV with flexible topologies or P2P TDM/Packet microwave

TDM or Packet Microwave

FMC Access

Ethernet nV

Ethernet / nV/ SDH Fixed and Mobile Access


Core Network IP/MPLS Domain

2.2 Large Network, Unified MPLS Access



Accces IP/MPLS domain

Core Node

Core Node

Core Node

Core Node

LDP LSP LDP LSP LDP LSP LDP LSP LDP LSP

iBGP(eBGP across ASes) Hierarchical LSP

•  The Core, Aggregation, Access Network enable Unified MPLS Transport •  The Core, Aggregation, Access are organized as independent IGP/LDP domains •  Core and Aggregation Networks may be in different Autonomous Systems, in which case the inter-domain LSP is enabled by labeled eBGP in between ASes •  The network domains are interconnected with hierarchical LSPs based on RFC 3107, BGP IPv4+labels. Intra domain connectivity is based on LDP LSPs •  The Access Network Nodes learns only the required labelled BGP FECs based on inbound or outbound service specific filtering. It can support Wireline and Mobile services.

Access IP/MPLS domain

Aggregation Node

Aggregation Node

Aggregation Node

Aggregation Node

Aggregation Node

Aggregation Node


BGP Control Plane Virtualization

Pre-Aggregation Node DWDM, Fiber Rings, Mesh Topology DWDM, Fiber Rings, H&S, Hierarchical Topology Fiber or uWave Link, Ring

Core Network FMC Access Network Aggregation Network

Core ASBR

IP/MPLS Transport

Core ASBR Access Node

IP/MPLS Transport

Aggregation ASBR

IP/MPLS Transport

VRR VRR

VRR VRR

IPv4/6+label RR Client IPv4/v6+label

RR, NHS

IPv4v6+label RR Client

IPv4v6+label RR Client

Service Edge Node (MTG., IGW…)

Service Edge Node (BNG, MSE, MAG

iBGP IPv4/6+label

iBGP IPv4/6+label

eBGP IPv4/6+label

IPv4/v6+label RR NHS

IPv4/v6+label RR, NHS

IPv4/v6+label Aggregation RR, NHU

IPv4/v6+label Core RR, NHU

In Small Networks, Core and Aggregation RRs are collapsed In Large Networks, the Aggregation RRs maybe be inline in Aggregation ASBRs


EPN Access Technology Choices

Ethernet

Unified MPLS

nV Satellite

Installed Base Legacy, extending to FMC

Any Market Seamless, Any Topology, Service

Green field Plug & Play, MEF, Enterprise


nV MPLS Ethernet

nV MPLS Ethernet

Market Value


Agenda


§ Transport



§ Summary


Service Infrastructure Enhancements

Integrated BNG, WAG, CGN

VNFs: vRR, QvPC-SI, QvBN,VXLAN GW, vBRAS

Cloud Policy and NMS

Key

Hig

hlig

hts

•  Fixed (BNG, MSE) and Mobile (MTG, WAG, SecGW) Service Edges optimal placement and integration with Transport Infrastructure

•  Network Functions Virtualization and Integration: •  Integrated BNG, CGN, WAG and L2/L3 VPN Edge, and MTG and SecGW •  Virtualized Centralized based EPC (PGW), Network Services (vRR) •  Virtualized Distributed Residential and Business CPE

•  Converged and Virtualized PCRF for Fixed, Mobile and WiFi Sessions •  Fixed and Mobile Service Edges with all Access Network Technologies: MPLS, G.

8032, nV


Consumer

Pre-Aggregation Node ASR-903, ASR-9001

DWDM, Fiber Rings, Mesh Topology DWDM, Fiber Rings, H&S, Hierarchical Topology Fiber or uWave Link, Ring

Core Node CRS-3

IP/MPLS Transport

IP/MPLS or Ethernet Transport

Core Node CRS-3 UMTS, LTE, WIFI

IP/MPLS Transport

Aggregation Node ASR-9000

Aggregation Node ASR-9001, 9006

Unified MPLS Network

IP

IP Residential Community WIFI

IP

IP

Residential PON Homes IP

IP

vCPE for MAP-T

Ethernet G.8032

Residential DSL Homes

IP

IP

•  BNG, PWHE HQOS, SRG •  G.8032 PON OLT and MSAN •  vBRAS, VXLAN to VPLS GW

for aggregation of legacy PPoE Households

RADIUS, Diameter

PGW

BRAS VNFs

EoMPLS PWE3

VXLAN VNFs

FMC Policy System Open Stack Orchestration

Legacy PPPoE DSL Homes

IP IP

IP

BNG PWHE+SRG, WAG

BNG SRG

Data Center Gateway

VXLAN


Enterprise

Enterprise


DWDM, Fiber Rings, Mesh Topology DWDM, Fiber Rings, H&S, Hierarchical Topology Fiber or uWave Link, Ring

Core Node CRS-3

IP/MPLS Transport

IP/MPLS or Ethernet Transport

Core Node CRS-3 UMTS, LTE, WIFI

IP/MPLS Transport

DC Transport Gateway ASR9000



IP

vMPC (LMA+EPC)

PAN-SE, AGN-SE with WAG

Remote BYOD User

Enterprise MPLS VPN with Hierarchical VPN extension to DC

Bridged WIFI Access

S1 and X2 L3 VPN Enterprise

Enterprise SSID VLANs

Branch GTP bearer

Remote BYOD User

Ethernet PWE3

VRF

VM VM VM

VRF VRF vPE-F

Hypervisor

DCG (Hierarchical VPN, with VRF default route inject towards vPEs provisioned by vSOC)

NFVvRR

vSoC

MPLS over GRE between DCGs and vPE-Fs

BGP VPN AFI

VRF

VM VM VM

VRF VRF vPE-F

Hypervisor

EPN vRR Ethernet and nV Enterprise

(v)MPC (S/PGW)

vCPE (CSR-1000v)


Transport Services: MEF

Multiservice Core Network



Large Scale Aggregation Network

Legacy Access Network

IP/MPLS Transport

X-Line Ethernet Port, 802.1q or 802.1ad TDM, ATM IMA E1, STM1

Ethernet, CESoPSN, SAToP, ATM VC/VP PWE3

Core Node

IP/MPLS Transport

SONET/SDH DWDM, Fiber Rings, H&S, Hierarchical Topology DWDM, Mesh Topology


E-LAN PBB-EVPN/E-TREE Ethernet Port, 802.1q or 802.1ad

AGN-SE

Ethernet P2P, G.8032 Ring

nV, P2P, Chain, Ring, L2 Fabric

E-LAN Ethernet PWE3 PBB-EVPN (includes E-TREE Ethernet Port, 802.1q

Optimal Service Edge, PAN-SE, AGN-SE

Ethernet 1q/QinQ PWHE With Ethernet Multiplexing per Access Node X-Line

Ethernet Port, 802.1q TDM, ATM IMA E1, STM1

Ethernet, CESoPSN, SAToP, ATM VC/VP PWE3

Access Node


V4/v6 MPLS VPN

GGSN SGSN

Transport Services: Mobile

ATM or TDM


DWDM, Fiber Rings, Mesh Topology DWDM, Fiber Rings, H&S, Hierarchical Topology Ethernet/TDM Microwave

Mobile Packet Core Network Mobile Access Network Mobile Aggregation Network

Core Node CRS-3, ASR-9000

IP/MPLS Transport

BSC RNC

V4 or v6 MPL VPN for S1, X2, M3, M1 and IP/PIMv4/v6 for eMBMS M3/M1

S/PGW LMA TDM BTS, ATM NodeB

Core Node CRS-3, ASR-9000

CSG ASR-901, 920 G.8032

IP/MPLS Transport

S/PGW LMA

MME

Mobile Transport Gateway X2-C, X2-U

S1-U

S1-C

Mobile Transport PE ASR9000


AToM Pseudowire SDH/SONET

G.8032

S1/X2 and M1/M3 require different IP endpoints and VLAN interfaces in eNB when IP/PIM is used for M3/M1

V4/v6 MPLS VPN

V4/v6 MPLS VPN

Mobile Transport Gateway

RPW

Routed BVI, over Bridge Domain with PW and EFP

Ethernet, G.8032


Agenda


§ Transport



§ Summary


Subscriber Services •  Consumer Subscribers:

•  Improved Unified subscriber experience:

•  Mediates the fixed, mobile, WIFI subscriber identities from a household for seamless access

•  Correlates the service policies applied to fixed and mobile sessions based on the common service logic:

Bandwidth and Session caps, Volume Quotas, access to destination based service

•  Enterprise VPNs and BYOD Subscribers:

•  Unified and Personalized L3 VPNs experience over Fixed and Mobile Access

•  Covers PE-CE routing, VPN routing topology, Access QOS and Security, VPN accounting

•  The VPN Access QOS, ACL and Accounting/Billing SLA are customizable on demand by the customer.

•  Seamless and Personalized remote BYOD access into Enterprise L3 VPN

Unified Subscriber Experience Seamless Subscriber Mobility

Mobile MAG

Fixed MAG LMA MPC

Enterprise FMC

Residential FMC

IP

WiIFI Device

Mobile Device

Personalized Subscriber Experience


Unified Consumer Services

§  Applicable to residential fixed and mobile §  The common SPR mediates the fixed and mobile subscriber identities under a family

account §  The common PCRF enables family service plans across all sessions enabling common

metering policies, destination based services and parental control §  It integrates with the Fixed and Mobile Subscriber databases and with the Fixed and

Mobile Edges and Service Supporting DPIs

Fixed Edge (BNG)

Mobile Edge (PGW)

Converged PCRF

RADIUS COA RADIUS COA

Gx, Gy

HSS AAA HLR

WIFI Edge (WAG)


Personalized + Unified Enterprise L3

•  Business Hours and Bandwidth on Demand Services •  Keeps Customer requests under control of SP policy and enables SP accounting for billing •  Provides same capability over fixed or mobile access •  MSE (vMPC with PGW and GGSN) and FSE implement SLA control and v4/v6 L3VPNs

•  SLA Control: PE-CE routing, QOS, Security, Accounting, OAM, PM

CSG

FAN

CSG FAN

AToM Pseudowire

Business L3 VPN (v4/v6) services FSE

AToM Pseudowire

FSE

vMPC (PGW, GGSN)

MSE S1 and X2 L3 VPN

Enterprise

Enterprise LTE/3G IP

Bearer

Ethernet

PCRF RADIUS AAA for Fixed Access QOS, ACL, Accounting

Radius AAA for Mobile Access QOS, ACL, Accounting

FSE

Enterprise

NMS Traditional Provisioning

SQL Service Correlation


BYOD Remote Access into L3 VPN

§  The SP Public and Community WIFI Access enables Enterprise SSIDs.

§  The BYOD access devices associate with the corresponding SSID and the SP PCRF proxies the authorization to the right Enterprise ISE

§  Each BYOD session (WIFI or Mobile) is authorized by the MSE (WAG in FSE or EPC, GGSN in vMPC), authorization being delegated to the enterprise ISE. The Enterprise can delegate the corresponding security and QOS policies for the user.

MSE (WAG in FSE) Fixed Home,

Enterprise SSID

IP

MSE (EPC, GGSN in vMPC)

Business Mobile Devices (BYOD) Business Mobile Devices(BYOD)

FMC Access Network

FMC Access Network

Enterprise L3 VPN

Authorization Delegation, SLA enforcement Public WIFI

Enterprise SSID

PCRF

Association EAP over RADIUS

ISE

BYOD Session AAA Diameter

BYOD Session AAA RADIUS


Summary – EPN 4.0

§  Based on Unified MPLS transport §  Supports any type of access, wireline + wirelesss, at customer

premises / offsite §  Converges wireline and mobile networks

§  Takes advanted of new technologies – NFV, Automation §  Personalized and unified subscriber experience

Has been tested

Design and Implmentation guides available


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plnog14: evolved programmable network, architektura dla sieci operatorskich - krzysztof konkowski

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