The Edge-Core Networks ISP/Metro Ethernet Solution:

Transcription

1 The Edge-Core Networks ISP/Metro Ethernet Solution: Achieving Performance and Reliability through the Use of Standard Protocols Alessandro Fiaschi

2 What we provide now Edge-Core providing high quality, feature rich but cost effective Access/Aggregation solution for ISP, MSO worldwide Helping service provider building up Ethernet To The Home (ETTH), Fiber to the Home (FTTH) infrastructure for broadband services Service providers can then provide home users with a broadband access, IPTV and VoIP services at an affordable price

3 Our Commitment Enhance software features to meet different demands, applications and customer needs Enhance robustness of multicast control to provide highquality IPTV service Ensure full security of the services provider s network against threats Ease in networking management and troubleshooting

4 What s Next Provide next generation switches with more advance functions such as IPv6 management, more advanced QoS, egress ACL, policy mapping etc Help service providers expand their business from home users to business users and enterprise by providing a more reliable and resilience network (ITU-T 8032 ERPS), managing connectivity fault and ensuring SLA (OAM) Expand the business to mobile operators High-end L3 solution for Aggregation network

5 Ethernet Access/Aggregation solution Satalite Aggregation Access Multicast Source VoD server Middleware ES3528M-SFP New Storage ECS F Storage New New ECS M FTTH ECS F Internet SIP Server PPPoE router VPN Server DHCP Server 10G Ethernet Ring <50ms restoration ECS F 1G Ethernet Ring <50ms restoration ECS M ES3510MA ECS T ETTH New ES3552M PSTN ECS T New ES3528M

6 The importance of Standard Protocols Protocols are fundamental to any form of communication between network devices Standard ones are defined by the best actors in the industry Allow interoperability and future integrations in your network Ease your network analysis and troubleshooting (e.g. traffic capture)

7 OAM protocols umbrella Ethernet Operations, Administration, and Maintenance (EOAM) is built in to handle discovery, link monitoring, remote fault detection, and remote loopback Among specific protocols supported it includes: IEEE 802.3ah for Ethernet in the First Mile tools IEEE 802.1ag for Connectivity Fault Management ITU-T Y.1731 for fault management and performance monitoring

8 IEEE 802.3ah Common name: Ethernet in the First Mile Scope: a link Our switches provide remote management tools required to monitor and maintain the links to subscriber CPEs (Customer Premise Equipment) Available functions include enabling OAM for selected ports, loop back testing, and displaying device information

9 IEEE 802.3ah CLI commands

10 IEEE 802.3ah EFM IEEE 802.3ah EFM provides tools for link monitoring, remote failure indication, and remote loopback on a link Real Time EVC1 Branch A Real Time Priority Data Headquaters Priority Data Best Effort EVC1 ECS M Best Effort Real Time Priority Data Best Effort UNI EVC2 Service Provider Network EVC2 Branch B ECS M Real Time Priority Data Best Effort IEEE 802.3ah IEEE 802.3ah

11 IEEE 802.1ag Common name: Connectivity Fault Management Scope: an end-to-end connection Proactive connectivity monitoring using continuity check messages, fault verification through loop back messages, and fault isolation by examining end-to-end connections between provider edge devices or between customer edge devices CFM is implemented as a service level protocol based on service instances which encompass only that portion of the metropolitan area network supporting a specific customer CFM can also provide controlled management access to a hierarchy of maintenance domains (such as the customer, service provider, and equipment Copyright operator) 2011 by Edgecore Networks Corp. All rights reserved. Confidential

12 Key Components of CFM CFM provides restricted management access to each Service Instance using a structured conceptual network based on these components: Domain Service Access Points (DSAPs) are the primary maintenance points used to monitor connectivity across a maintenance domain, and are the entry points to the paths which interconnect the access points allocated to a service instance A Maintenance Domain (MD) is a part of the network controlled by a single operator and supports management access to the domain as well as connectivity testing between DSAPs A Maintenance Association (MA) contains the DSAPs for an individual Service Instance A Maintenance Level (ML) allows maintenance domains to be nested in a hierarchical fashion, providing access to the specific network portions required by each operator Maintenance End Points (MEPs) which provide full CFM access to Service Instance (i.e., a specific MA) Maintenance Intermediate Points (MIPs) which are passive entities that merely validate received CFM messages, or respond to link trace and loop back requests

13 CFM maintenance domains

14 IEEE 802.1ag CFM IEEE 802.1ag Connectivity Fault Management which provides tools for service level OAM and detecting, isolating and reporting connectivity faults in a provider network Real Time EVC1 Branch A Real Time Priority Data Headquaters Priority Data Best Effort EVC1 ECS M Best Effort Real Time Priority Data Best Effort UNI EVC2 Service Provider Network EVC2 Branch B ECS M Real Time Priority Data Best Effort MIP MIP IEEE 802.1ag Connectivity Fault Management MEP MEP

15 ITU-T Y.1731 Common name: Performance and Throughput Management Scope: an end-to-end connection Delay measurement can be used to measure frame delay and frame delay variation between MEPs. If a MEP is enabled to generate frames with delay measurement (DM) information, it periodically sends DM frames to its peer MEP in the same MA, and expects to receive DM frames back from it. Frame delay measurement can be made only for two-way measurements, where the MEP transmits a frame with DM request information containing timestamps: Frame Delay = (RxTimeStampb-TxTimeStampf)-(TxTimeStampb-RxTimeStampf) The MEP can also make two-way frame delay variation measurements based on its ability to calculate the difference between two subsequent two-way frame delay measurements.

16 ITU-T Y.1731 perf mgmt ITU-T Y.1731 which covers connectivity management and also provides tools to measure performance parameters for a service such as frame delay and frame delay variation Real Time EVC1 Branch A Real Time Priority Data Headquaters Priority Data Best Effort EVC1 ECS M Best Effort Real Time Priority Data Best Effort UNI EVC2 Service Provider Network EVC2 Branch B ECS M Real Time Priority Data Best Effort ITU-T Y.1731 Performance Monitoring

17 ITU-T G.8032 Ethernet Ring Protection Switching, or ERPS, is an effort at ITU- T under G.8032 Recommendation to provide sub-50ms protection and recovery switching for Ethernet traffic in a ring topology At the same time ensuring that there are no loops formed at the Ethernet layer G.8032v1 supports a single ring topology G.8032v2 supports multiple rings/ladder topology

18 ITU-T G.8032 (continued) Loop avoidance in an Ethernet Ring is achieved by guaranteeing that, at any time, traffic may flow on all but one of the ring links This particular link is called the Ring Protection Link (RPL), and under normal conditions this ring link is blocked, i.e. not used for service traffic One designated Ethernet Ring Node, the RPL Owner Node, is responsible for blocking traffic at one end of the RPL Under an Ethernet ring failure condition, the RPL Owner Node is responsible for unblocking its end of the RPL (unless the RPL has failed) allowing the RPL to be used for traffic

19 Layer 2 Reliability (ERPS) ERPS offers the capability to rapidly detect and recover from node, link, or service failure to offer a very high availability service to the end user Recovery from failures occurs in less than 50 milliseconds (!) This capability meets the most demanding quality and availability requirements for the delivery of missioncritical enterprise applications, high-quality voice and video services, and in the most generic case any application requiring a demanding SLA

20 ITU-T G.8032 ERPS G.8032 Ethernet Ring Protection Switching enables the network todetect and recover from link failure without impacting users and meets the most demanding high reliability and continuous availability requirement Internet PPPoE router VPN Server DHCP Server 10G Ethernet Ring <50ms restoration RPL Owner 24G+4 10G L3 Switch ETH-CC RPL Owner Nimbra 230 Domain Major Nimbra 230 ETH-CC Domain Sub ETH-CC ETH-CC ETH-CC IDLE State ETH-CC 8FE+ 2CG ETTH 48FE +4 CG 24FE+ 2CG 24FE+ 4CG

21 Internet PPPoE router VPN Server DHCP Server ITU-T G.8032 ERPS G.8032 Ethernet Ring Protection Switching enables the network todetect and recover from link failure without impacting users and meets the most demanding high reliability and continuous availability requirements 10G Ethernet Ring <50ms restoration RPL Owner 24G+4 10G L3 Switch ETH-CC RPL Owner Nimbra 230 Nimbra 230 Link Failure Domain Major ETH-CC Domain Sub ETH-CC ETH-CC ETH-CC ETH-CC 8FE+ 2CG ETTH 48FE +4 CG 24FE+ 2CG 24FE+ 4CG

22 Standard but still extraordinary :) Edge-Core Model No. ECS M New Product Description Carrier Ethernet Aggregation/ Demarcation Switch 12 port 1000BaseX Combo Gigabit port (RJ45/SFP) Operating temp: 0 o C-+65 o C Dual power input (AC/DC) Alarm input/output Fanless Front access Dying gasp ITU-T G.8032 Ethernet Ring protection switch trtcm, Bundling rate-limiting IEEE 802.3ah, 802.1ag, Y.1731 SyncE IPv6

23 IPv6: are you ready? Passed IPV6 ready logo (gold) host mode IPv4/IPv6 Dual Protocol Stack IPv6 Address Type: Unicast/ Multicast ICMPv6 ICMPv6 Redirect (host) IPv6 Path MTU Discovery IPv6 Neighbor Discovery Stateless Auto-configuration Stateful auto configuration-dhcpv6 Manual Configuration SNMP over IPv6 HTTP over IPv6 SSH over IPv6 IPv6 Telnet support IPv6 DNS Resolver IPv6 Syslog Support IPv6 SNTP Support IPv6 TFTP Support IPv6 FTP support Remote IPv6 Ping Ping over IPv6 IPv6 ACL IPv6 DSCP remapping RA Guard

24 More standards we use Protocol Standard Ref. Scope Synchronous Ethernet ITU-T G.8262 Mobile Backhaul FCoE INCITS T11 FC-BB-5 Quantized Congestion Notification (QCN) 802.1Qau Enhanced Transmission Selection (ETS) 802.1Qaz Priority Based Flow Control (PFC) 802.1Qbb Digital Diagnostic Monitoring (DDM) SFF-8472 ISP FTTH Data Center Ethernet Two Rate Three Color Marker (trtcm) IETF RFC 2698 ISP/MSO

25 Summary Carrier Ethernet and Ethernet-based services are seeing rapid adoption globally The compelling attributes of Carrier Ethernet, that is, standardized service definitions, scalability, reliability, Quality of Service, and service management, have contributed to the increased interest in Carrier Ethernet Services These services help providers realize significant savings in operational expenses and offer providers a strong competitive advantage End user realize Substantial savings and higher performance by switching to a Carrier Ethernet sevice Offers for this fast-growing market a cost-efficient, highly scalable delivery of high-performance Carrier Ethernet services

26 Thanks for your attention! Dziękujęza uwagę! Alessandro Fiaschi