Larscom 6000 Inverse Mux

Inverse multiplexing using up to eight UNIs

  • Bandwidth management via advanced traffic shaping and dynamic line management

  • Easily-integrated SLA monitoring via statistics
    exchanged with your core management system

  • Versatile CLI, SNMP, Java-based GUI, and web-based management

  • Easily-monitored network performance via testing
    and diagnosis at Layers 1, 2, and 3

  • Universal NxT1/E1 network connections

  • Equipment integration using V.35, HSSI, and/or
    10/100Base-T data ports

  • Migration to new technologies through easy-to administer
    software upgrades

  • FRF.16-compliant Multilink Frame Relay, in T1/E1
    multiples up to 16 Mbps

  • High-speed internet access

  • Inverse multiplexing using up to eight UNIs

  • SLA verification

Designed for service providers and enterprises, ™ the Larscom 6000 is the ideal end point for a wide range of high-speed services. The Larscom 6000 delivers T1/E1 bandwidth in multiples of 16 Mbps, turning a broadband pipe into a service delivery system for current and  future frame relay, ATM, and IP service offerings. It also provides integrated Service Level Agreement (SLA) management without additional hardware or monitoring/reporting systems. Tested by the Frame Relay Forum and certified fully FRF.16 compliant, the Larscom 6000 offers complete interoperability with Multilink Frame Relay (MFR)-enabled switches and CO concentrators. By using FRF.16 plus IP forwarding functions, the Larscom 6000 supports resilient high-speed customer-to-core network connections. There is no need for intermediate hardware or routers, so advanced services can be offered at the lowest total cost of operation. By combining the latest transport technologies with robust IP services, the Larscom 6000 insures maximum return on your investment.

With the Larscom 6000 deployed at the customer premises (CP), advanced network services can be provided at a low total cost of operation. Certified compliant with the Frame Relay Forum’s Multilink Frame Relay standard (FRF.16), the Larscom 6000 eliminates the need for additional equipment between the CP and the CO. The Larscom 6000's auto-configuration, bandwidth management, and traffic shaping simplify installation and maintenance. SLA statistics gathered by the Larscom 6000 are delivered in a standard format directly to the core management system.





Fully Compliant with FRF.16 — Aggregates multiple DS1circuits into a logical bundle with guaranteed delivery, guaranteed sequencing of individual frames, and point-to-point reliability. Fully interoperable with MFR-enabled switches and concentrators.

Encapsulation — Q.922A frames from serial interface; IP datagram from router encapsulated per RFC2427

Signaling: LMI Modes — None; ANSI Annex D; CCITT Q.933 Annex A; "gang of four"; proxy LMI

OA&M — Per Frame Relay Forum frftc00-008; delay, availability, frame delivery, and loss per FRF.13

Flexible, Expandable Network Links — Full rate T1/E1; NxT1/E1 multilink; up to 4 or 8 UNIs/NNIs, depending on model; 1024 PVCs (256 active)

QoS/Traffic Shaping — CIR, Bc, Be parameters set/applied per PVC; BECN, FECN rate adaptation; PVC prioritization with three priority queues

Performance Monitoring — 24-hour registers for T1/E1;  SLA statistics on availability, delay, frame delivery, and loss

Discovery — ARP, Inverse ARP







T1 Network Port — 4 or 8 lines; per AT&T PUB 62411; RJ45 female connectors; 0, -7.5, or -15 dBm LBO; 1.544 Mbps ±32 ppm; B8Zs or AMI; ESF per AT&T 1.544 Mbps ±32 ppm; B8Zs or AMI; ESF per AT&T PUB 54016, ANSI T1.403

Modes — SNMP, telnet, FTP; CLI; menu-based, drag-and-drop GUI (standalone or with HP OpenView); web browser

E1 Network Port — 4 or 8 lines; balanced 120 ohm ±5% (adapters available for 75 ohms); RJ45 female connectors; 2.048 Mbps ±50 ppm; HDB3; with or without CRC

Security — RADIUS Client; three-level password protection; three-level SNMP community Read/Write/Admin protection; SNMP Trap and Access Control Lists (50 IP addresses or ranges)

T1/E1 Alignment — 1 to 8 T1s or E1s; any T1/E1 can be FR or part of 1-8 bundles consisting of 1-8 links each

SNMP MIBs — MIB II (RFC 1213); DS1/E1 (RFC 1406); Ethernet Statistics (RFC 1650); Frame Relay (RFC 2115); Frame Relay UNI-NNI MFR (FRF.16 MFR.MIB); Frame Relay SLD MIB; Larscom MIBs

T1/E1 Clocking — Internal; loop

Loopbacks — Local and remote T1/E1/serial; PVC and OA&M Frame Relay

T1/E1 Differential Delay — Up to 130 ms, user-selectable per bundle

Ethernet Data Port — 10/100Base-T, auto-negotiating, half and full duplex; RJ45 female

HSSI Data Port — TIA PN 2795/2796; 50-pin SCSI-II female connector


V.35/RS422 Data Port — CCITT V.35 (V.10/V.11) and/or RS422; DB25 female connector (EIA 530); adapters for MS34 (V.35) and DC37 (RS422)

Power — Auto-ranging 85-264 V ac, or -48 V dc

Management Ports — Ethernet (RJ45 female); RS232 (ASCII, DB9 male DTE); modem (RJ45 female); inband

Dimensions (H x W x D) — 3.5 x 17 x 13 inches (8.8 x 43.2 x 31.8 cm); brackets for 19- or 23-inch rack


Weight — 8 lbs (3.5 kg)


Environment — 0 to 50 °C (32 to 113 °F), operating;


up to 80% relative humidity, noncondensing


Regulatory Compliance — FCC Parts 15 & 68; UL 1950; EN60950; EN55022 (Class A); EN50082-1; GR-0063-CORE (NEBS); CE compliance with EU directives

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