Long Reach Ethernet LRE 2000 Cisco Systems Inc

Long Reach Ethernet - LRE © 2000, Cisco Systems, Inc. 1

Challenges to Overcome • Overcome Ethernet distance limitation • More bandwidth over Category 1/2/3 support advanced media-rich applications • Drive down per-line costs while driving up performance by utilizing Ethernet components • Retain key Qo. S, security, provisioning and management features • Ensure equipment is easy to use and provides platform for future applications © 2000, Cisco Systems, Inc. 2

Technology Solution: LRE (Ethernet Over VDSL) • 5, 10 or 15 Mbps symmetric throughput Maps directly to full duplex Ethernet Allows for true high speed BANs • Co-exists with POTS and digital phones Requires splitter Up to 5000 ft over single pair Cat 3 Runs over Cat 1, 2 as well unstructured wiring • Based on robust Catalyst switching platform © 2000, Cisco Systems, Inc. 3

Solution Components Catalyst 2924 -LRE-XL Switch 10/100 L 2 or L 3 Ethernet switch: Stack aggregator PS-1 M-LRE-48 POTS Splitter Cisco 575 -LRE CPE © 2000, Cisco Systems, Inc. Cisco Building Broadband Service Manager (Radius Authentication, NAT, DHCP, DNS, User Self-Activation, Dynamic Bandwidth Selection), Third-party Account/Billing 4

Catalyst 2900 -LRE-XL • Based on industry leading Catalyst 2900 -XL platform • IOS Based • 802. 1 Q VLANs • 802. 1 p COS • Management CLI Embedded web console CPE Monitoring Switch Clustering © 2000, Cisco Systems, Inc. • Security Private VLAN Access (unicasts to uplink port only) Multicast control TACACS+ (management authentication) • 12 or 24 LRE Ports (RJ 21) • 4 10/100 Ethernet Ports (RJ 45) For stacking or connection to router or server • 1 RU High 5

Cisco 575 -LRE CPE • Converts VDSL to standard Ethernet • Integral POTS splitter for telephone attach Passive function • 2 RJ 11 s for Line input and telephone Supports 2 -line phones • 1 RJ 45 for Ethernet • Monitoring remotely from switch using web interface or CLI © 2000, Cisco Systems, Inc. 6

PS-1 M-LRE-48 POTS Splitter • Non-homologated version • Supports 48 ports • No power supply - Passive device • 1 RU High • ADC & Corning to provide homologated splitter Requires specific splitter © 2000, Cisco Systems, Inc. 7

LRE Overview Up to 4000’ Add-on as Needed Floor 1 Floor 2 PBX LRE Switches Floor 3 Internet Router Floor 4 Management Gateway POTS Splitters Floor 5 Main Closet © 2000, Cisco Systems, Inc. 8

LRE Room Detail Up to 4000’ Existing Phone Wiring Internet Router POTS Splitter LRE Switch Management Gateway PBX Main Closet © 2000, Cisco Systems, Inc. Guest Room PC Connection 9

LRE EQUIPMENT LAYOUT © 2000, Cisco Systems, Inc. 10

LRE EQUIPMENT LAYOUT © 2000, Cisco Systems, Inc. 11

LRE Technology Overview • Enables the use of Ethernet over existing, unconditioned, telephone-grade wire • Enables Ethernet to coexist with “plain old telephone service” (POTS), Integrated Services Digital Network (ISDN) or private branch exchange (PBX) signaling services • Uses DSL coding and digital modulation techniques with Ethernet • Provides a point-to-point transmission that can deliver a symmetrical, full duplex, data rate of up to 15 Mbps • LRE products are simple to install and interface with any existing Ethernet solution © 2000, Cisco Systems, Inc. 12

LRE Technology—Bandwidth • LRE technology can operate at up to 17 Mbps Enables transport of Ethernet data up to 15 Mbps • Transport overhead does not reduce the Ethernet bandwidth © 2000, Cisco Systems, Inc. 13

Standard x. DSL Frequency Bands Downstream-1 Downstream-2 Upstream-1 138 k. Hz Upstream-2 5. 2 MHz 3. 75 MHz 12 MHz 8. 5 MHz • Upstream and downstream transmissions separated by frequency (FDD) • 4 bands gives more flexibility for performance vs reach © 2000, Cisco Systems, Inc. 14

LRE Frequency Bands Downstream TX - Switch RX - CPE 900 KHz Upstream RX - Switch TX - CPE 3. 75 MHz 5. 2 MHz 9 MHz • Downstream band reduced to allow use of digital “Smart. Phones” • Upstream band may use standard frequencies or may use wider band for “private” installations • Maximum data rates 15 Mb/s full duplex (private) or 15/5 for standard installations © 2000, Cisco Systems, Inc. 15

Summary of LRE Key Technology Features • Standard 10 Mbps Ethernet over regular twisted pair copper wire • Distances of up to 4000 ft (1. 2 km) at full-duplex 10 Mbps, 15 Mbps high-speed mode (3500 ft, 1 km) • Simultaneous data and POTS, ISDN or PBX signaling services over the same line • Utilizes the most advanced multi-QAM modulation techniques • Minimum interference with other wire pairs and other services • Full-duplex point-to-point transmission • Longer distances can be reached at lower rates • Low power-implementation, minimum heat-dissipation issues • Supports testing and management capabilities © 2000, Cisco Systems, Inc. 16

Design Examples © 2000, Cisco Systems, Inc. 17

Broadband Ethernet Solution Hotel Telecommuter Design Cisco 1700/2600 Catalyst 2900 XL - Local services/intranet - Video Servers Catalyst 2900 XL Internet/ VPN BBSM Accounting/Billing/Security Catalyst 2924 -LRE Cache Engine (Optional) Long Reach Ethernet POTS Splitter PSTN Network PBX Aironet 340 VPN CPE © 2000, Cisco Systems, Inc. LRE CPE VPN Conference Room LRE Room 1 POTS Phone Room 2 18

Multi Dwelling Unit Gigabit to the Central Office GSR Catalyst 3512 XL PSTN Network Catalyst 6500 Catalyst 2924 -LRE Central Office LRE POTS Splitter CPE LRE LRE CPE Aironet Cisco 1700 Aironet VPN Apartment © 2000, Cisco Systems, Inc. Telecommuter LRE CPE Cisco 1700 VPN Telecommuter 19