Huawei Technologies Co., Ltd. Huawei Technoiogies

Transcription

1

2 Huawei Technoiogies Huawei Technologies Co., Ltd. Add: Bantian, Longgang District Shenzhen P.R.China Tel : http: // Version No.: M C-1.0 Copyright 2004 by Huawei Technologies Co., Ltd. All Rights Reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

3 Quidway Terabit Core Router

4

5 Quidway Terabit Core Router Introduction...2 Product Features...3 Powerful Scalability Terabit Capacity and 10G/40G interface IPv4/IPv6 Dual Protocol Stacks Superior QoS Processing Security Guarantee Specifications...5 Software Specifications Hardware Specifications Modules...8 Applications...9 Application in the National Backbone Network Application in the Provincial Backbone Network Application In an IPv6 Backbone Network Application in the MPLS L3 VPN Network 1

6 Introduction Quidway NetEngine 5000E terabit core router is a super-large capacity core router which can be applied in the national backbone network, provincial backbone network and other super large networks. Adopting a series of advanced technologies such as 10G/40G interface, three-stage switching fabric, optical shelf interconnecting for multi-chassis stack, network processors (NP) and ASIC Chipsets for forwarding engine, and the mature, stable VRP routing software of Huawei, can provide unprecedented performance, preeminent scalability and high reliability, IPV4/V6 dual protocol stacks, superior QoS features and abundant security functionality. With the excellent hardware and software architectures, can meet the availability requirements and the multi-service demands of the carrier-class networks. Figure 1-1 2

7 Quidway Terabit Core Router Product Features Powerful Scalability supports maximal 64 chassis stack to scale the system capacity up to 160Tbps without service interruption. It is characterized by: have three choices for the multi-chassis stack: back-to-back 2-chassis-system, 4-chassis-system and 64-chassis-system. Back-to-back 2-chassis system needn't additional fiber shelf for the interconnection which is necessary for other else choice. This method support 2 chassis to comprise a routing gear. So backto-back is a relatively economic & simply method to scale the capacity. 4-chassis-system and 64-chassis-system respectively support maximal 4 and 64 chassis interconnection and additional fiber shelves are necessary for them. With them carrier can scale these system seamlessly from 1 to 4 and from Terabit Capacity and 10G/40G interface Exploiting the thinking derived from Fifth Generation router, take use of two kinds of forwarding engine, one based on ASIC and the other based on NP, to leverage the requirement from both uncompromising performance and flexible service. A single chassis supports the non-blocking, full-wire-speed switching of up to 64 10G-interfaces or 16 40G-interfaces in then near future. The throughput capacity can reach 2.56Tbps, and the forwarding performance of the system can be 1600Mpps with single chassis. provides the abundant high-performance interfaces to meet the internetworking requirements. It provides 16 Line Processing Units (LPU). has a wide LPU family: 1* 10GE port LPU, 1* 10G POS port LPU, 4*2.5G POS ports LPU, 4*10G POS ports LPU, 4*10GE ports LPU, high density GE (20/24/48) ports LPU and so on. IPv4/IPv6 Dual Protocol Stacks supports bothipv4 and IPV6 protocol stacks and can work in the IPv4/IPv6 dual-stack mode. 3

8 Provide all IPv6 features and solutions for smooth transition from IPv4 networks to IPv6 networks. Support three IPv6 over IPv4 tunnel techniques: manually configured tunnel, automatic tunnel, and 6to4 tunnel. Superior QoS processing can effectively control Bandwidth, delay, jitter, and packet loss by its QoS features; the buffering mechanism on both upstream and downstream results in a low packet drop rate. In addition, also features that: MPLS QoS is independent of IP QoS by individual queuing management mechanisms. PQ and WRR/WFQ not only guarantee the fair dispatching but also ensure that high-precedence services are served first. Three-stage switching fabric is based on the Combined Input and Output Queuing (CIOQ), which guarantees the non-blocking switching. Flow-based dispatching facilitates the MPLS TE and supports the Diff-Serv and Inter-Serv. Four precedence queues per physical port prevent the high-precedence traffic from being interfered. Independent Traffic Management processing module based on ASIC and NP provides the stable QoS performance. Security Guarantee takes multiple security measures to guard both the gear and the traffic through this gear. The measures can prevent DOS attacks, illegal accesses, and control plane overload. The distributed architecture separates the traffic plane from the control plane. And the security features include: Supporting two kinds of user authentication modes for logging in: local authentication and RA- DIUS/TACACS authentication; Secure Shell (SSH) for the authentication and end-to-end encryption; Integration with SSH based on Authentication, Authorization and Accounting (AAA); 4

9 Quidway Terabit Core Router EACL (Enhanced ACL) -based packet filtering; Hardware-based packet filtering and sampling for the high performance; Multiple authentication methods (plain text authentication, MD5) for important routing protocols (IS-IS, RIP, BGP-4, OSPF); ACL on the forwarding plane and control plane; Rate-limit for each interface/acl entry; Port mirroring of IP and MPLS traffic. Specifications Software Specifications Performance Forwarding capability of IPv4 packets: wire speed forwarding for various interfaces Forwarding capability of IPv6 packets: wire speed forwarding for various interfaces Packet forwarding rate reaches 1600Mpps/single chassis system Layer 2 Protocol LAN protocol: Ethernet_II, Ethernet_SNAP, Ethernet_SAP, LACP (IEEE 802.3ad), 802.3z, 802.3ae WAN protocol: PPP, MP, HDLC,POS, ATM Routing Protocol QoS Features Static routing (IPv4/v6) Dynamic routing protocol : OSPF IS-IS BGP-4 PIM MSDP MBGP The maximal capacity of routing table can reach 3.2M entries, depending on the configuration of memory Supports bi-directional traffic policing CAR, Traffic Shaping Supports WFQ/PFQ/CBQ Supports WRED Supports 32k bi-directional classifation rules per line card Supports MPLS QoS: Can classify MPLS packets by MPLS EXP, and support to set the MPLS EXP Support structured QoS command line (SQC) 5

10 Support modular QoS command line (MQC) Security & Authentication MPLS VPN Multicast Supports AAA, and RADIUS/TACACS Supports ACL, and packet filtering firewall Support the hierarchical protection of command line to ensure that unauthorized users cannot invade the router Provide the record of user access log Support MPLS forwarding Support L2/L3 MPLS VPN and VPLS, can be deployed as provider (P) or provider edge (PE) router Support MPLS traffic engineering (TE) and FRR Multicast Source Discovery Protocol (MSDP) Internet Group Management Protocol (IGMP) Protocol Independent Multicast-Dense Mode (PIM-DM) Protocol Independent Multicast-Sparse Mode (PIM-SM) Network Management Maintenance Provide two modes for configuration: command line and NMS Support the inter-operation with Huawei's carrier-class MPLS VPN Management System Support HGMP(Huawei Group Management Protocol) Support SNMP V1,V2 and V3 and RMON Support SSH Support automatic fault diagnosis function Support implement remote configuration maintenance via AUX Support online debug and upgrade Reliability Main processing unit (MPU) redundancy 1:1 Switching fabric redundancy 3+1 Power module redundancy 1+1 Fan redundancy 1+1 Support all modules online insertion and removal Support MPLS Fast Reroute (FRR) Support Nonstop Forwarding(NSF) Support self-constrain standing routing (SCSR) 6

11 Quidway Terabit Core Router Hardware Specifications Description System Architecture Hardware is composed of an integrated chassis (with a backplane), power module, ventilation/heat-dissipation system, and boards; NP-based distributed forwarding; CIOQ (Combined Input and Output Queuing) - based three-stage switching fabric to guarantee the non-blocking switching Support the optical shelf interconnecting to implement the seamless expansion Main control slots 2 Switching fabric slots 4 Service slots 16 Throughput capacity 2.56Tbps switching capacity Forwarding performance 1600Mpps Dimensions (W * D * H) 442mm * 600mm * 1600mm Weight Maximum power DC-input power supply Max attitude 120 kg (chassis + power modules + fans + universal components) 10 kg (LPU) 4.3 kg (MPU) 4.5 kg (SFU) 5000W -48v input No performance degradation within 5000 meters Operating Temperature - Normal: 5 C to 40 C (41 F to 104 F) - Short term: -5 C to 50 C (23 F to 122 F) short term Humidity - Normal: 5% to 85% - Short-term: 5% to 90% 7

12 Modules provides various types of LPUs 10-port 10M/100M/1000M Compatible Ethernet Electrical Interface Card 10-port Gigabit Ethernet Single/Multi-Mode Optical Interface Card 20-port Gigabit Ethernet Single/Multi-Mode Optical Interface Card 1-port 10G Ethernet Single-Mode Optical Interface Card (LAN) 4-port 10G Ethernet Single-Mode Optical Interface Card (LAN) 1-port 10G Ethernet Single-Mode Optical Interface Card (WAN) 4-port 10G Ethernet Single-Mode Optical Interface Card (WAN) 4-port STM-16/OC-48c POS Interface Card 1-port STM-64/OC-192c POS Interface Card 4-port STM-64/OC-192c POS Interface Card and so on. 8

13 Quidway Terabit Core Router Applications Application in the National Backbone Network NAP lnternational egress National backbone lnternational egress /NE80E /NE80E Provincial backbane /NE80E Provincial backbone /NE80E NAP: Network Access Point Figure 1-2 Application in the national backbone network The national backbone network applies the partial mash topology. It upstream connects to the international egress, and downstream to junior provincial backbone networks. It also connects with other ISP networks through NAPs. can work as the core node of the national backbone network because of its large capacity, high-density ports, and powerful routing and high-speed forwarding capability. 9

14 Application in the Provincial Backbone Network As shown in Figure 1-3, the core layer of the provincial backbone network is composed of devices. The NE80/NE40 devices act as the city nodes, converging the traffic from the MAN, leased line service, narrowband access, and Internet Data Center (IDC). Provincial backbone POS 10G POS 10G POS 10G POS 10G City node City node 10GE POS 2.5G POS 2.5G 10GE NE40 NE40 NE40 NE40 MAN Leased line convergence Narrowband access IDC Figure 1-3 Application In the provincial backbone network This solution is applicable to establish, scale or reconstruct large ISP provincial backbone networks. These ISPs have the Internet access services and cost advantages, as well as transmission resources. In the case of transmission resources shortage, the link bandwidth can be reduced accordingly without changing the network topology. The devices on the convergence layer or above have the wire speed forwarding capability. The entire network supports MPLS VPN. 10

15 Quidway Terabit Core Router Application In an IPv6 Backbone Network PE PE NAT-PT IPv6 internet IPv6/v4 IPv6 CORE IPv6 PE/NAT-PT IPV6 EDGE PE IPv4 internet L3 L3 L2 L2 SOHO IPv6 SOHO IPv6 PE: Provider Edge NAT -PT: Network Address Translation Protocol Translation Figure 1-4 Application in an IPv6 backbone network The IPv6 application on the backbone network does not impact the original IPv4 services such as IPv4 forwarding and MPLS VPN. The application needs to solve two problems: Interconnection between IPv6 islands Interworking between IPv6 and IPv4 networks 11

16 brings forward the following solutions based on IPv6 techniques: All the routers on the backbone network support the IPv4/IPv6 dual-stack. In this case, IPv4 services are forwarded over IPv4, while IPv6 services are forwarded over IPv6. Both of the problems can be solved. The interconnection between IPv6 islands can be implemented through L3 tunnels, manually configured tunnels or 6to4 tunnels. The core router needs only to support the IPv4 forwarding. The interworking between IPv6 and IPv4 networks can be implemented by configuring the NAT-PT on gateways. The interconnection between IPv6 islands can be implemented through MPLS L2 tunnels by applying such MPLS L2 VPN techniques as VPLS and CCC. The core router needs only to support the MPLS forwarding. The interworking between IPv6 and IPv4 networks can be implemented by configuring the NAT-PT on gateways. 12

17 Quidway Terabit Core Router Application in the MPLS L3 VPN Network CE PE P PE CE VPN2 VPN1 P CE PE MPLS CORE MPLS EDGE P PE VLAN S8016 VPN1 VLAN CE VLAN S8016 VLAN CE VLAN VPN3 CE VLAN VPN2 CE VPN3 VPN2 Table 1-1 Application in the MPLS L3VPN network In this application routers serve as the Provider P routers/nodes/devices in the network core. For an multi-as VPN application, can also act as a Customer Edge (CE) device in the case that it is an Autonomous System Boundary Router (ASBR). The routers serve as the Provider Edge (PE) devices, providing the NAT and the Internet access. 13