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E4G-200 Cell Site Router
Ethernet, IP/MPLS and Pseudowire Capabilities in a Compact 1RU Form Factor.

E4G-200 Cell Site Router

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For service providers, revenue growth is increasingly driven by 3G and eventually 4G mobile services that provide access to compelling smartphone and tablet-based applications. The challenge in designing true 4G mobile backhaul is to build a foundation that protects existing investments in 2G and 3G services, provides a superior subscriber experience, prepares for future 4G service requirements, and minimizes costs. This challenge can be met by deploying a true 4G mobile backhaul network with three key ingredients: resiliency, synchronization and performance.

Extreme Networks E4G-200 router is a carrier-grade Ethernet platform that provides a seamless migration path from TDM circuits to Ethernet services for mobile operators and creates a fundamental Ethernet infrastructure capable of scaling to the needs of 2G, 3G and 4G mobile networks.

E4G-200 Cell Site Router

The Extreme Networks E4G-200 Cell Site Router delivers Ethernet, IP/MPLS and pseudowire capabilities in a compact 1RU form factor. The E4G-200 provides mobile operators the ability to manage and aggregate TDM and Ethernet services and their associated protocols onto an economical and efficient Ethernet mobile backhaul infrastructure.

The Extreme Networks E4G-200 Cell Site Router (CSR) is where 4G backhaul begins and where the T1/E1 pseudowire circuit for 2G/3G is also initiated. Installation is in or very near to the base station tower. 2G and 3G base stations use T1/E1 for backhaul connectivity and 4G base stations connect directly to the cell site router via Ethernet. The E4G-200 provides the necessary interfaces for 2G, 3G, and 4G base stations while still meeting the demands of its installation environment, in a design that is very compact (less than 10 inches/24 cm deep), and features an extended temperature range.

The Extreme Networks E4G-200 router is designed for services running over an Ethernet and IP/MPLS infrastructure. The E4G-200 is designed to backhaul 2G, 3G and 4G mobile traffic, using a single backhaul network instead of a multiple backhaul networks which translates into an economical deployment model. Service providers, energy utilities, transportation and government agencies can deploy Extreme Networks E4G-200 router for mobile backhaul with the knowledge that their deployments will have advanced services.


The E4G-200 enables service providers to provide Ethernet/IP services cost-effectively at any cell site, including optional TDM pseudowires and deployments of 4G base stations. This flexibility gives service providers the ability to deploy revenue-generating services at 2G/3G cell sites and allows for 4G deployments and new Ethernet/IP services.

  • Increased Gigabit Ethernet ports - twelve active GbE ports
  • Optional industry-standard pseudowires - supports up to 16 ports
  • Extended temperature range - from -40°C to +65°C
  • Certified synchronization - both IEEE 1588v2 and SyncE
  • Carrier-grade resiliency - through EAPS (Ethernet Automatic Protection Switching, RFC 3619) or ITU-T G.8032 Ethernet Ring Protection standard
  • Integrated Ethernet OAM - support for IEEE 802.3ah, IEEE 802.1ag, and ITU Y.1731
  • Low latency for LTE
  • Line rate performance
  • Compact size - 1 RU and only 10 inches/25.4cm in depth


  • Hardware-based IEEE 1588v2 and ITU-TG.8262 Synchronous Ethernet for next-generation timing
  • Resilient packet ring protocols including EAPS (Ethernet Automatic Protection Switching, RFC 3619) and ITU-T G.8032 Ethernet Ring Protection Switching
  • 12 line-rate synchronous GbE port
  • Industry-standard pseudowires supporting up to 16 T1/E1 port
  • Hardware-based Ethernet OAM including IEEE 802.3ah, IEEE 802.1ag, and ITU Y.1731
  • Modular ExtremeXOS software with XML API

The 1RU size of the E4G-200 allows economical installation in cell site locations where space is limited. All Extreme Networks advanced routing and switching features, including IPv6, are available on this compact and powerful platform.

E4G-200 optionally supports up to 16 ports for circuit emulations via industry-standard pseudowires, allowing the transformation of TDM cell sites to Ethernet/IP/MPLS cell sites.

With an extended temperature range of -40°C to +65°C, service providers can deploy the E4G-200 router at sites without climate control, enabling more sites to convert to packet-based backhaul, reducing CapEx and OpEx, and allowing Ethernet/IP services to be delivered to a larger target market.

Twelve active GbE ports allow service providers to connect more 4G base stations for growth and to support other Ethernet/IP equipment local to the cell site.

Mobile backhaul networks require accurate timing. The E4G-200 provides today's existing TDM timing on it T1/E1 ports as well as the Ethernet-based timing-both IEEE 1588v2 and SyncE-on its Ethernet ports.

Extreme Networks supports EAPS as well as the G.8032 Ethernet Ring Protection standard.

Support for IEEE 802.3ah, IEEE 802.1ag, and ITU Y.1731 gives management and reporting control over the Ethernet backhaul, including pseudowires to provide integrated Ethernet OAM.

Functions in the hardware allow for mere microseconds of latency to improve performance of latency-sensitive applications that are a part of LTE rollouts.

Ports, services and OAM functions run at line rate with no degradation in service when the different feature sets are enabled.

Extreme Networks Ethernet mobile backhaul solutions are geared towards the unique demands of mobile operators. Our solutions offer support for multiple generations of services. Mobile operators can lower their capital expenses (CapEx) and operational expenses (OpEx) by reducing the number of network elements and simplifying operations. Our solutions can enable mobile operators to deliver a network that is geared towards the new mobile world, providing access, awareness and control, from the cloud to the converged edge.


  • Highly precise synchronization, independent of network traffic load
  • Improved quality of service from better clock accuracy through support for hybrid mode
  • Lower subscriber churn through outstanding quality of experience enabled by reliable services
  • Increased opportunities for new revenue streams with high-capacity mobile backhaul supporting LTE/4G services
  • Investment protection through high-performance, synchronous gigabit Ethernet mobile backhaul supporting 2G, 3G, and 4G services
  • Investment protection by leveraging on widely deployed legacy TDM backhaul interfaces
  • Lower subscriber churn through accelerated resolution to service issues
  • Reduced total cost of ownership through simplified operations
  • Services scalability through broad protocol support including VMAN, L2 VPN MPLS, and IPv6

Network Diagram:

The E4G-200 enables service providers to provide Ethernet/IP services cost-effectively at any cell site, including TDM pseudowires and deployments of 4G base stations. This flexibility gives service providers the ability to deploy revenue-generating services at 2G/3G cell sites and allows for 4G deployments and new Ethernet/IP services that will be defined in the future.

Typical Network Architecture for Wireless Backhaul

Figure 1: Typical Network Architecture for Wireless Backhaul


  • 1 x D-sub 15-pin External Alarm Interface
  • 2 x Eurostyle Horizontal 3-pin Power Connectors
  • 1 x RJ-45 Serial/Console Port
  • 1 x RJ-45 10/100/1000BASE-T Out of Band Management Port
  • 8 x RJ-45 Ethernet 10/100/1000 BASE-T Ports
  • 4 x SFP Ethernet 100/1000BASE-X Ports
  • 4 x SMA Timing Interfaces + 1 x RJ-45 - Sync In/Sync Out
  • 16 x RJ-45 E1/T1 Ports
Hardware Options
  • 16 port T1/E1 Circuit Emulation module
  • Sync In/Sync Out Timing module
  • Height: 1 RU 1.75 inches (4.45 cm)
  • Depth: 10 inches (25.4 cm)
  • Width: 17.3 inches (43.9 cm)
  • Rack mountable in a standard 19-inch equipment rack, 12-inch depth (48.2 cm rack, 30 cm depth)
  • Two feeds: -48DC or +24V DC
  • Auto-voltage sensing power supply
  • 2 x power connectors: three-position Eurostyle connector for A and B DC power
  • Internal fan array with redundancy
  • Air flow: side to side
  • Operating temperature range: -40°C to +65°C
  • Humidity: 10% to 95% relative humidity, non-condensing
  • Altitude: 0 to 3,000 meters (9,850 feet)
  • Shock (half sine): 30 m/s2 (3 G), 11 ms, 60 shocks
  • EN/ETSI 300 019-2-1 v2.1.2 - Class 1.2 Storage
  • EN/ETSI 300 019-2-2 v2.1.2 - Class 2.3 Transportation
  • EN/ETSI 300 019-2-3 v2.1.2 - Class 3.1e Operational
  • EN/ETSI 300 753 (1997-10) - Acoustic Noise
  • ASTM D3580 Random Vibration Unpackaged 1.5 G
  • Maximum Ports: 12 Ethernet Ports (1 Gb/s full duplex) + 16 TDM Ports (E1/T1 full duplex)
  • Line rate for all data ports from 64 byte to 9,600 byte MTU
  • Switching capacity: 32 Gbps
  • Latency: less than 4 microseconds (64-byte)
  • Maximum packet size: 9,216 Byte (Jumbo Frame)
  • Maximum load sharing trunks: 6 with up to 8 members per trunk
  • Maximum VLANS: 4,094
  • ACL Rules: 2,048 ingress and 512 egress
  • Forwarding Tables
  • Layer 2/MAC Addresses: 32K
  • IPv4 LPM Entries: 12K
  • IPv6 LPM Entries: 6K
  • QoS Rate Limiters: 2,048 ingress
  • Ingress and egress bandwidth policing/rate limiting per flow/ACL
  • QoS Egress: 8 queues/port
  • Egress bandwidth rate shaping per egress queue and per port
  • Rate Limiting Granularity: 8 Kbps
  • Internal Stratum-3 Clock (Telcordia GR-1244-CORE)
  • Common Clock Distribution across All Ports
  • External Reference Timing Input (BITS)
  • Synchronous Ethernet (ITU-T G.8262)
  • IEEE 1588v2 Precision Time Protocol
  • CESoPSN - Structure-Aware Time Division Multiplexed (TDM) Circuit Emulation Service over Packet Switched Network
  • SAToP - Structure-Agnostic Time Division Multiplexing (TDM) over Packet
  • MEF 8 Implementation Agreement for the Emulation of PDH Circuits over Metro Ethernet Networks
  • PWE3 Control Word for Use over an MPLS PSN
  • Pseudowire Setup and Maintenance using the Label Distribution Protocol (LDP)
  • Encapsulation Methods for Transport of Ethernet over MPLS Networks
  • Packet Priority
  • DiffServ Precedence, including 8 queues/port
  • DiffServ Expedited Forwarding (EF)
  • DiffServ Assured Forwarding (AF)
  • DiffServ Core and Edge Router Functions
  • VLAN Tagging
  • Port-based VLANs
  • Protocol-based VLANs
  • MAC-based VLANs
  • Multiple STP domains per VLAN
  • Private VLANs
  • Virtual MANs (vMANs)
MPLS and VPN Services
  • Multiprotocol Label Switching Architecture
  • MPLS Label Stack Encoding
  • RSVP Refresh Reduction
  • Label Distribution Protocol (LDP)
  • RSVP-TE: Extensions to RSVP for LSP Tunnels
  • Traffic Engineering Extensions to OSPFv2
  • Fast Re-route Extensions to RSVP-TE for LSP (Detour Paths)
  • Detecting MPLS Data Plane Failures (LSP Ping)
  • Bidirectional Forwarding Detection
Layer 2 VPNs
  • Pseudowire Setup and Maintenance using the Label Distribution Protocol (LDP)
  • Encapsulation Methods for Transport of Ethernet over MPLS Networks
  • Virtual Private LAN Services (VPLS) using Label Distribution Protocol (LDP) Signaling
  • Pseudowire Virtual Circuit Connectivity Verification (VCCV)
  • Ethernet Automatic Protection Switching (EAPS)
  • ITU G.8032v2 Ethernet Ring Protection
  • Spanning Tree/Rapid Spanning Tree Protocols
  • Software-Enhanced Availability
  • Equal Cost Multipath
  • Link Aggregation
  • Multi-Switch LAG (M-LAG)
  • 1:1 RSVP-TE LSP protection
  • Bidirectional Forwarding Detection (BFD) based LSP protection
  • 2 Power Feeds
  • Internal Fan Array with Redundancy
  • Secure Shell (SSH-2)
  • Secure Copy (SCP-2)
  • SFTP client/server
  • RADIUS Authentication, Accounting
  • MAC Security - Lockdown and Limit
  • IP Security - Trusted DHCP Server
  • IP Security - ARP Protection
  • RPF (Unicast Reverse Path Forwarding)
  • Wire-speed ACLs
  • Rate Limiting/Shaping by ACLs
  • CPU DoS Protection with traffic rate-limiting
  • Robust against common network attacks
  • Host Attacks Protection
  • Routing protocol MD5 authentication
Control Plane
  • RFC 3619 Ethernet Automatic Protection Switching (EAPS) and EAPSv2
  • IEEE 802.1D - 1998 Spanning Tree Protocol (STP)
  • IEEE 802.1D - 2004 Spanning Tree Protocol (STP and RSTP)
  • IEEE 802.1w - 2001 Rapid Reconfiguration for STP, RSTP
  • IEEE 802.1Q - 2003 (formerly IEEE 802.1s) Multiple Instances of STP, MSTP
  • EMISTP, Extreme Multiple Instances of Spanning Tree Protocol
  • PVST+, Per VLAN STP (802.1Q interoperable)
  • Extreme Standby Router Protocol™ (ESRP)
  • IEEE 802.1Q - 1998 Virtual Bridged Local Area Networks
  • IEEE 802.3ad Static load sharing configuration and LACP based dynamic configuration
  • Software Redundant Ports
  • Multi-switch Link Aggregation Groups (M-LAG)
  • IEEE 802.1AB - LLDP Link Layer Discovery Protocol
  • LLDP Media Endpoint Discovery (LLDP-MED), ANSI/TIA-1057, draft 08
  • Extreme Discovery Protocol (EDP)
  • Extreme Loop Recovery Protocol (ELRP)
  • Extreme Link State Monitoring (ELSM)
  • Static Unicast Routes
  • Static Multicast Routes
  • Static ECMP
  • Static IGMP Membership
  • RFC 1058 RIP v1
  • RFC 2453 RIP v2
  • RFC 3768 VRRPv2
  • RFC 1771 Border Gateway Protocol 4
  • RFC 1965 Autonomous System Confederations for BGP
  • RFC 2796 BGP Route Reflection
  • RFC 1997 BGP Communities Attribute
  • RFC 1745 BGP4/IDRP for IP-OSPF Interaction
  • RFC 2385 TCP MD5 Authentication for BGPv4
  • RFC 2439 BGP Route Flap Damping
  • RFC 2918 Route Refresh Capability for BGP-4
  • RFC 3392 Capabilities Advertisement with BGP-4
  • RFC 4360 BGP Extended Communities Attribute
  • RFC 4486 Subcodes for BGP Cease Notification message
  • draft-ietf-idr-restart-10.txt Graceful Restart Mechanism for BGP
  • RFC 4760 Multiprotocol extensions for BGP-4
  • RFC 2328 OSPF v2 (Edge-mode)
  • OSPF MD5 Authentication
  • RFC 1587 OSPF NSSA Option
  • RFC 1765 OSPF Database Overflow
  • RFC 2370 OSPF Opaque LSA Option
  • RFC 3623 OSPF Graceful Restart
  • RFC 1195 Use of OSI IS-IS for Routing in TCP/IP and Dual Environments (TCP/IP transport only)
  • RFC 2763 Dynamic Hostname Exchange Mechanism for IS-IS
  • RFC 2966 Domain-wide Prefix Distribution with Two-Level IS-IS
  • RFC 2973 IS-IS Mesh Groups
  • RFC 3373 Three-way Handshake for IS-IS Point-to-Point Adjacencies
  • Draft-ietf-isis-restart-02 Restart Signaling for IS-IS
  • Draft-ietf-isis-wg-multi-topology-11 Multi Topology (MT) Routing in IS-IS
  • PIM Snooping
  • Multicast VLAN Registration (MVR)
  • RFC 2362 PIM-SM (Edge-mode)
  • RFC 3569, draft-ietf-ssm-arch-06.txt PIM-SSM PIM Source Specific Multicast
  • PIM-DM Draft IETF PIM Dense Mode draft-ietf-idmr-pim-dm-05.txt, draft-ietfpim-dm-new-v2-04.txt
  • RFC 3618 Multicast Source Discovery Protocol (MSDP)
  • RFC 3446 Anycast RP using PIM and MSDP
  • RFC 4861, Neighbor Discovery for IP Version 6, (IPv6)
  • RFC 2463, Internet Control Message Protocol (ICMPv6) for the IPv6 Specification
  • RFC 2464, Transmission of IPv6 Packets over Ethernet Networks
  • RFC 2462, IPv6 Stateless Address Auto Configuration
  • RFC 1981, Path MTU Discovery for IPv6, August 1996 - Host Requirements
  • RFC 3513, Internet Protocol Version 6 (IPv6) Addressing Architecture
  • Telnet server over IPv6 transport
  • SSH-2 server over IPv6 transport
  • RFC 2893, Configured Tunnels
  • RFC 3056, 6to4
  • RFC 2710, IPv6 Multicast Listener Discovery v1 (MLDv1) Protocol
  • Static Unicast routes for IPv6
  • RFC 2080, RIPng
  • RFC 2740 OSPF v3 (Edge-mode) (Requires Advanced Edge License)
  • Static ECMP
  • Draft-ietf-isis-ipv6-06 Routing IPv6 with IS-IS
  • Ethernet OAM IEEE 802.3ah Link OAM
  • Ethernet OAM IEEE 802.1ag Fault Management
  • Ethernet OAM ITU Y.1731 Performance Management
  • SNTP, Simple Network Time Protocol v4
  • Telnet client and server
  • FTP client and server
  • TFTP Protocol (revision 2)
  • BOOTP/DHCP relay agent and DHCP server
  • DNS (client operation)
  • SNMPv1, v2, and v3
  • RFC 1757 RMON
  • Secure Shell (SSH-2) client and server
  • Secure Copy (SCP-2) client and server
  • Secure FTP (SFTP) server
  • sFlow® version 5
  • Configuration logging
  • Multiple Images, Multiple Configs
  • BSD Syslog Protocol with Multiple Syslog Servers
  • Extreme Networks vendor MIBs
  • XML APIs over Telnet/SSH and HTTP/HTTPS
  • Web-based device management interface - ExtremeXOS ScreenPlay™
  • LSP Ping
  • LSP Traceroute
  • VCCV
  • BFD
Safety Standards North American Safety of ITE
  • UL 60950-1 2nd Ed., Listed Device (U.S.)
  • CSA 22.2 #60950-1-03 2nd Ed. (Canada)
    • Complies with FCC 21CFR 1040.10 (U.S. Laser Safety)
  • CDRH Letter of Approval (U.S. FDA Approval)
European Safety of ITE
  • EN 60950-1:2007 2nd Ed.
  • EN 60825-1+A2:2001 (Lasers Safety)
  • TUV-R GS Mark by German Notified Body
  • 2006/95/EC Low Voltage Directive
International Safety of ITE
  • CB Report & Certificate per IEC 60950-1 2nd Ed. + National Differences
  • AS/NZX 60950-1 (Australia/New Zealand)
EMI/EMC Standards North America EMC for ITE
  • FCC CFR 47 part 15 Class A (U.S.)
  • ICES-003 Class A (Canada)
European EMC Standards
  • EN 55022:2006+A1:2007 Class A
  • EN 55024:A2-2003 Class A includes IEC 61000-4-2, 3, 4, 5, 6, 11
  • EN 61000-3-2,8-2006 (Harmonics)
  • EN 61000-3-3 2008 (Flicker)
  • ETSI EN 300 386 v1.4.1, 2008-04 (EMC Telecommunications)
  • 2004/108/EC EMC Directive
International EMC Certifications
  • CISPR 22: 2006 Ed 5.2, Class A (International Emissions)
  • CISPR 24:A2:2003 Class A (International Immunity)
  • IEC 61000-4-2:2008/EN 61000-4-2:2009 Electrostatic Discharge, 8kV Contact, 15 kV Air, Criteria A
  • IEC 61000-4-3:2008/EN 61000-43:2006+A1:2008 Radiated Immunity 10V/m, Criteria A
  • IEC 61000-4-4:2004 am1 ed.2./EN 610004-4:2004/A1:2010 Transient Burst, 1 kV, Criteria A
  • IEC 61000-4-5:2005/EN 61000-4-5:2006 Surge, 2 kV L-L, 2 kV L-G, Level 3, Criteria A
  • IEC 61000-4-6:2008/EN 61000-4-6:2009 Conducted Immunity, 0.15-80 MHz
  • IEC/EN 61000-4-11:2004 Power Dips & Interruptions, >30%, 25 periods, Criteria C
Country Specific
  • VCCI Class A (Japan Emissions)
  • ACMA (C-Tick) (Australia Emissions)
  • CCC Mark
  • KCC Mark, EMC Approval (Korea)
Telecom Standards
  • ETSI EN 300 386:2001 (EMC Telecommunications)
  • ETSI EN 300 019 (Environmental for Telecommunications)
  • NEBS Level 3 compliant to portions of GR-1089 Issue 4 & GR-63 Issue 3 as defined in SR3580 with exception to filter requirement
  • MEF 9 compliant
  • MEF 14 compliant


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