SSR System Description
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SSR System Description DESCRIPTION 1/221 02-CRA 119 1364/1-V2 Uen D Copyright © Ericsson AB 2011–2013. All rights reserved. No part of this document may be reproduced in any form without the written permission of the copyright owner. Disclaimer The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document. Trademark List NetOp NetOp is a trademark of Telefonaktiebolaget LM Ericsson. 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 Contents Contents 1 Overview 1 1.1 Scope 1 1.2 Audience 2 2 Introduction 2 3 SSR Use Cases 3 3.1 Layer 2 Solutions 3 3.2 Layer 3 Solutions 4 3.3 BNG Solutions 7 3.4 SSR in Other Ericsson Solutions 8 3.5 Multi-Service Edge Routing Solution 10 4 System Architecture 11 4.1 Hardware Architecture 11 4.2 Software Architecture 16 4.3 Forwarding 28 5 Features 30 5.1 Synchronous Ethernet 30 5.2 Layer 2 Features 31 5.3 Tunnels 32 5.4 Routing 33 5.5 BNG Features 38 5.6 IP Protocol Support 39 5.7 IP Services 41 5.8 SSC Services 42 5.9 Quality of Service 43 5.10 Connectivity Fault Management (CFM) 45 5.11 System Redundancy and Synchronization (High Availability) 46 6 User Interface 48 6.1 Using the SSR CLI 48 7 Administration 51 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 SSR System Description 7.1 Managing Security 51 7.2 Managing Performance 54 7.3 Monitoring and Reporting Tools 55 Glossary 59 Reference List 63 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 Overview 1 Overview This document describes the Ericsson SSR 8000 family and its usage, services, and architecture. 1.1 Scope This description covers the logical and functional aspects of the product, and it includes a brief overview of the hardware architecture. For more information, see the following documents: SSR 8000 Routers • Hardware Overview for the SSR 8010 • Hardware Overview for the SSR 8020 Interface Cards • 10-Port 10 Gigabit Ethernet Card (10 X 10 Gigabit Ethernet (GE) line card) • 40-Port Gigabit Ethernet Card (4 X 1GE line card) • 1-Port 100 Gigabit Ethernet or 2-Port 40 Gigabit Ethernet Card (1 X 100GE or 2 X 40GE line card) • 4-Port 10 Gigabit Ethernet, or 20-Port Gigabit Ethernet and 2-Port 10 Gigabit Ethernet Card (2 X 10GE or 4 X 10GE and 20 X 1GE card for Broadband Network Gateway (BNG) and Multi-service Edge Routing (MSER) services Controller Cards • RPSW (Controller) Card • ALSW (Alarm) Card • SW (Switch) Card Service Cards • Smart Services Card (SSC) Other Components • SSR 8000 Power Entry Modules • SSR 8000 Fan Trays 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 1 SSR System Description 1.2 Audience This document provides an introduction to the SSR platform, including its architecture and SSR concepts, to anyone who is unfamiliar with the product. 2 Introduction The SSR combines multiple functions into a single platform that provides Layer 3 (IP) routing, Layer 2 (Ethernet) network aggregation, and BNG services, as well as advanced services for applications. The SSR provides carrier-class reliability, scalability, performance, and an optimal power footprint. It also provides a flexible and high-performance platform for Ericsson applications, such as Evolved Packet Gateway (EPG). The SSR platform supports the following functions: • Comprehensive range of interior and exterior gateway routing protocols and multicast routing. • Peering, edge aggregation, and core route reflection. • End-to-end Ethernet transport services with direct connection to the access layer of the network. • Advanced traffic management with Hierarchical Quality of Service (H-QoS) and comprehensive traffic shaping. • Direct connection to the access layer of the network, which eliminates unnecessary network layers and reduces complexity. • Support for up to 748,000 subscribers per physical device and all methods of subscriber encapsulation for Dynamic Host Configuration Protocol (DHCP) or IP access clients, including Point-to-Point Protocol (PPP) over Ethernet (PPPoE). The SSR in combination with other Ericsson products provides a complete end-to-end solution for the following: • BNG—Layer 2 and Layer 3 • EPG—Layer 3 • IP Radio Access Network (IP RAN)—Layer 3 • Mobile Backhaul (MBH)—Layer 2 and Layer 3 2 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 SSR Use Cases • Mobile Packet Backbone Network (MPBN)—Layer 2 and Layer 3 For a description of these solutions, including diagrams and the configuration requirements, see Layer 2 Solutions, Layer 3 Solutions, BNG Solutions, and SSR Router in Other Ericsson Solutions. Figure 1 illustrates the possible combinations and shows how other Ericsson solutions fit with the SSR platform. Figure 1 Possible Service Combinations 3 SSR Use Cases 3.1 Layer 2 Solutions You can use the SSR platform to provide services for Ethernet traffic. For example: • Layer 2 Virtual Private Networks (L2VPNs) based on Virtual Private Wire Service (VPWS)—Provides end-to-end Layer 2 cross-connected circuits over IP/Multiprotocol Label Switching (MPLS) core networks • Ethernet to Ethernet Layer 2 cross-connects (XCs) 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 3 SSR System Description • XC VPWS-based transport, including tagged and untagged frames as part of the VPWS (does not support medium access control (MAC) learning) • Link aggregation groups (LAGs) provide increased bandwidth and availability. The SSR supports up to 800 802.1AX link groups, with 8 ports per link group. • Multichassis LAGs (MC-LAGs) provide node-level redundancy on top of the link-level redundancy provided by a regular link group. In an MC-LAG configuration, identical link groups are configured on separate nodes. The Ericsson SSR platform supports two nodes, and therefore two link groups, in an MC-LAG cluster. • Mirror policies allow an operator to create a copy of all the traffic entering or leaving a specified physical port to troubleshoot network problems. Figure 2 illustrates the SSR 8000 in a Layer 2 network. Figure 2 SSR in a Layer 2 Network Table 1 lists the features that you can configure for Layer 2 solutions. Table 1 Layer 2 Solution Features Business Application Layer 2 Transport Routing and Label Distribution Services Method Options L2VPN (Business VPN) L2VPN VPWS LDP or RSVP VPN pseudowire VPWS IS-IS or OSPF QoS Propagation L2VPN (Business VPN) Layer 2 XC Ethernet-to-Ethernet Local XC QoS Propagation XC 3.2 Layer 3 Solutions The SSR can provide Layer 3 Virtual Private Network (L3VPN) services and IPv4 and IPv6 routing and transport services. 4 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 SSR Use Cases 3.2.1 L3VPNs The router can provide the following Layer 3 services: • End-to-end Layer 3 connection over an IP/MPLS core network • Business VPNs, such as Border Gateway Protocol (BGP)/MPLS Layer 3 VPNs, IP Security (IPsec) VPNs, or Generic Routing Encapsulation (GRE) VPNs • Multicast routing supporting broadcast TV and video-on-demand solutions • Core routing solutions, such as P router and route reflector, in an IP/MPLS core network • BNG with Layer 3 VPN services, such as remote business VPNs and wholesale service offerings (requires at least one 4-port 10GE or 20-port Gigabit Ethernet and 2-port 10GE card) Figure 3 illustrates the router in a Layer 3 network with VPNs. Figure 3 L3VPNs Table 2 lists the features that you can configure for Layer 3 solutions. 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 5 SSR System Description Table 2 Configurable Features for Layer 3 Solutions Business Circuit Options Routing Options Services Application Integrated PTA One of the following combinations: QoS BNG/L3VPN L2TP BGP, MPLS, LDP, ISIS Filter and Policy ACLs CLIPS BGP, MPLS, LDP, OSPF CE-PE Routing Options DHCP BGP, MPLS, RSVP, ISIS Route Filters Static Circuits BGP, MPLS, RSVP, OSPF BGP, MPLS, LDP over 1-hop RSVP, ISIS BGP, MPLS, LDP over 1-hop RSVP, OSPF L3VPN CLIPS Static routes or an IGP or eBPG for CE QoS to PE connectivity DHCP Filter and Policy ACLs Combinations of the following: Static circuits CE-PE Routing options BGP Route filters MPLS LDP or RSVP IS-IS or OSPF Mobile applications, Static circuits Combinations of the following: QoS such as MPBN BGP Filter and Policy ACLs MPLS LDP or RSVP IS-IS or OSPF Layer 3 PE Router Static circuits CE-PE routing options: QoS Static Filter and Policy ACLs OSPF or IS-IS Route Filters eBGP IPSec RIP GRE Core routing options: LAG or ECMP BGP Multicast MPLS LDP or RSVP IS-IS or OSPF Layer 3 P Router Not applicable Core routing options: Route Reflector BGP LAG or ECMP MPLS LDP or RSVP IS-IS or OSPF 6 1/221 02-CRA 119 1364/1-V2 Uen D | 2013-03-25 SSR Use Cases 3.3 BNG Solutions The router can provide the following BNG services: • Broadband Remote Access Server PTA: PPP Terminated Access PPP (over Ethernet) • Layer 2 Tunneling Protocol (L2TP) terminated access L2TP L2TP Access Concentrator (LAC) L2tp Network Server (LNS) L2TP Tunnel Switch (LTS) • DHCP PTA DHCP Clientless IP Service Selection (CLIPS) • Triple-Play service model Broadcast TV, video-on-demand, Voice Over IP (VoIP), high speed Internet • Dedicated Virtual LAN (VLAN) per subscriber – Service-based VLANs Figure 4 illustrates a router in a network providing BNG services.