T-Metro 7124S

10G Ethernet MPLS Demarcation & Pre-Aggregation Platform

T-Metro 7124S
The T-Metro 7124S multiservice aggregation device is a member of Telco Systems' field-proven T-Metro family of Carrier Ethernet switches.

The T-Metro 7124S supports link-level EFM industry standards, including IEEE 802.1ag CFM, ITU-T Y.1731 for loss and delay measurement, Y.1731 SLM for E-LAN testing, RFC2544 for service testing and Y.1564 for service activation testing, making it one of the leading OAM supported devices on the market.

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The T-Metro 7124S pre-aggregation and demarcation device is a member of Telco Systems’ field-proven T-Metro family of Carrier Ethernet switches. The T-Metro 7124S supports both Carrier Ethernet and MPLS transport technologies with a diverse set of OAM (operations, administration and maintenance) tools and extensive QoS and resiliency capabilities. This rich combination of technologies allows service providers to deliver assured differentiated service offerings while maintaining competitivepricing.

The T-Metro 7124S supports L2VPN advanced data services such as virtual private wire services (VPWS), virtual private LAN services (VPLS) and hierarchical virtual private LAN services (HVPLS), as well as IEEE 802.1Q and TLS (Q-in-Q) services. As one of the first devices in the industry to be certified as CE 2.0 with all four services and scenarios, the T-Metro 7124S meets the current and future needs of providers’ networks.

Advanced Synchronization and Timing
As part of the RAN evolution for LTE and LTE-Advance, and the transition from TDM-based backhaul to packet-based backhaul, the backhaul network has to support strict synchronization demands both on frequency and phase synchronization throughout the path the packets traverse. The T-Metro 7124S provides a comprehensive set of synchronization options optimized for the delivery of mobile backhaul and mobile backhaul wholesale services with support for Synchronous Ethernet (SyncE), IEEE 1588v2*, external clock and phase source via BITS interfaces.

Flexible Control of Traffic and Services
As the demand for data bandwidth increases, providers can use the statistical multiplexing nature of packetized traffic to provide more services on the same infrastructure. At the same time, service providers want to differentiate their services and provide a proper QoE for different applications requirements. A wide set of QoS and Hierarcial QoS (HQoS) features allow service providers to have higher granularity and hierarchal levels of QoS to control the behavior of traffic and services in the network and to provide this differentiation.

Advanced Hardware-based OAM
T-Metro 7124S incorporates hardware-based OAM to enable the highest level of service assurance. Engineered to the latest standards for Carrier Ethernet, the T-Metro 7124S, together with Telco Systems’ EdgeGenie Service Management System and demarcation devices, creates a complete network edge solution that supports the most stringent SLAs, ensuring the service providers can offer a high quality of service which will increase their revenue, while reducing their OPEX. The T-Metro 7124S supports link-level EFM industry standards, including IEEE 802.1ag Connectivity Fault Management (CFM), ITU-T Y.1731 for loss and delay measurement, Y.1731 SLM for E-LAN testing, RFC2544 for service testing and Y.1564 for service activation testing, making it one of the leading OAM supported devices on the market.

L3 Support

T-Metro 7124S provides comprehensive solutions and services that best support IP (Internet Protocol) environment requirements–including Virtual Routing and Forwarding (VRF) support, IP static routing and dynamic routing protocols like OSPF, IS-IS and BGP. T-Metro 7124S also supports Dynamic Host Configuration Protocol (DHCP) for dynamically distributing network configuration parameters, and Virtual Router Redundancy Protocol (VRRP).

Carrier Grade Resiliency

T-Metro 7124S was designed to provide a carrier grade level of resiliency, both in physical design and by implementing a wide variety of resiliency protocols. With a high port count, the T-Metro 7124S allows for the use of LAG and LACP as a port resiliency option as well as support for link-level protection mechanisms, network-wide mechanisms and service-level mechanisms.
  • 10GE, wire speed non-blocking MPLS/Carrier Ethernet demarcation, pre-aggregation and aggregation device
  • Carrier-grade and highly resilient, including dual-homing, FRR, G.8031, G.8032, xSTP
  • Carrier Ethernet, MPLS & IP transport technologies
  • Layer 3 features support: HW-based L3 forwarding with VRF support using static route, OSFP, IS-IS and BGP routing protocols
  • MPLS provider edge (PE)
  • Hierarchical Quality of Service (HQoS) and high service granularity support
  • Extensive field-proven operations, administration and maintenance (OAM) support including embedded RFC2544 test head and Y.1564
  • Extended operation temp
  • ETSI 300 compliant, 1.5RU height, 10’’ deep, 19” rack mountable
  • MEF, IEEE, ITU-T and IETF standards compliance for multivendor interoperability
  • EdgeGenie Service Management for full lifecycle support of Ethernet services
  • NEBS Level 1 certified

Hardware Characteristics

  • 24 x 100BaseFX/1000BaseX ports
  • Optional: 2 x 10G XFP expansion module
  • Non-blocking 44Gbps FD platform
  • Dual AC or wide range 24-72VDC power supplies


  • All MEF services, IEEE 802.1Q bridging, IEEE, 802.1ad Q-in-Q (TLS),


  • Sub-50ms ITU-T G.8031 EPS, ITU-T G.8032v2 RAPS and MSTP Fast Ring, Sub-50ms RSVP-TE FRR, HVPLS dual home, secondary LSP, xSTP, resilient link, LAG (static/IEEE 802.3ad LACP) Hot swappable, redundant AC/DC power supply


  • SyncE, IEEE 1588v2 PTP, BITS and phase clock

Quality of Service

  • Per port/EVC/flow single/dual rate limiting, Hierarchical rate limit per EVC, SP, WRR and hybrid frames scheduling, CoS marking and
    mapping per EVC, IPv6 data path support

Multicast Management

  • IGMP snooping v1/v2/v3, IGMP proxy, Multicast VLAN registration (MVR)


  • Hardware-based OAM - IEEE 802.3ah EFM, IEEE
    802.1ag CFM, OAM over VPLS (OAMoVPLS)

Testing & Monitoring

  • ITU-T Y.1564 and RFC2544 Test Head and service performance analyzer
    In-service testing capabilities*, ITU-T Y.1731 PM, SM and SLM
    Per-port/EVC/VLAN/COS, hardware-based flexible
    MAC-based loopbacks*


  • Console, Telnet, SSHv2, Radius, TACACS+, SNMP v1/2/3, xFTP, NTP, DNS resolver, DHCP client and Zero-Touch provisioning*


  • ACLs, RADIUS, SSHv2, SNMPv3, SFTP, port security,
    Broadcast storm prevention, secured access

General Specifications

  • Dimensions: (W x H x D):440mm (19” racks) x 67mm (2.625”) x 253mm(10”)
  • Weight: 5.2 kg (11.5lb)
  • Operating Temperature:
  • TM-7124S-AC-x -20°C to 65°C (-4°F to 149°F)
  • TM-7124S-DC and TM-7124S-DC-W -40°C to 65°C (-40°F to 149°F)
  • Humidity: 5% to 95% non-condensing
  • Input power: 100-240 VAC, 50/60 Hz, -24VDC to -72VDC

Regulatory Compliance

  • Safety: 
  • NRTL certified: C-UL 60950, CSA 22.2, No.950, 
  • EN/IEC 60950, TUV/GS (EN60950),CB, EN, 60825-1/2
  • EMC: CE Mark: EN50081-1: EN55022 Class A, EN60555-2/3; 
  • North America: FCC 47 CFR, Part 15 Class A; ICES-003 Issue 4 Class A (Canada); Japan: VCCI Class A;, Australia/NZ: CISPR 22 Class A
  • Immunity: EN50082-1, EN/IEC 61000-4-2/3/4/6/11
  • RoHS compliant

Key Applications

  • Mobile backhaul and mobile backhaul wholesale as an aggregator or cell site demarcation device
  • Small cell backhaul aggregator
  • MEF CE 2.0 certified (E-Line, E-LAN, E-Tree, E-Access)
  • 10GE NID (E-NNI application)
  • Hub & Spoke Layer 2 aggregation or pre-aggregation device
  • Multi-tenant, multi-service HVPLS spoke (using MPLS or Q-in-Q)
  • Data center consolidation
  • C-RAN base station hotel demarcation

Data Sheets

T-Metro 7124S Datasheet
Last Updated: 2019-01-29

White papers

Better Backhaul with MPLS to the Cell Site
Last Updated: 2016-01-18

Solutions Overview

Mobile Backhaul Solution Brochure
Last Updated: 2013-04-15
Ethernet Service Management Solution Brochure
Last Updated: 2012-03-22
Solutions Overview
Last Updated: 2015-11-24

Related Files

Carrier Ethernet Products Matrix
Last Updated: 2015-04-20