T-Marc 3308D

Carrier Ethernet DOCSIS® Enabled Demarcation Device

Business Services over DOCSIS (BSoD) open new market opportunities for cable operators. They now can provide business customers with many advanced data services such as Dedicated Internet Access (DIA), L2VPN, L3VPN, inter-sites and data-center connectivity over their existing DOCSIS networks.
Download T-Marc 3308D Data Sheet (English)A4 PDF  US Letter PDF  
T-Marc 3308D is a carrier-grade DOCSIS® enabled demarcation device, offering Carrier Ethernet 2.0, MPLS, IP (Layer 3) and SDN.

Combining all of these capabilities in one device delivers the most cost effective solution for Cable MSOs to leverage their network and provide commercial services to business customers.

T-Marc 3308D DOCSIS® enabled demarcation device comes with Layer 3 (L3) support and is ready for future SDN-enabled networks. With the right feature blend, T-Marc 3308D brings the highest available value for cost performance. T-Marc 3308D is suitable for wholesale and business service providers to connect their customers efficiently between sites and into the cloud. T-Marc 3308D enables service providers to choose whether to use Carrier Ethernet network capabilities or to use MPLS to the edge without any additional software costs. In addition, T-Marc 3308D allows service providers to combine L3 native services together with L2 advanced OAM tools. By supporting SDN, T-Marc 3308D allows service providers a smooth transition to future SDN-enabled networks.

T-Marc 3308D supports IEEE802.1q, Q-in-Q and MPLS transport technologies, providing high flexibility in network design and thus “future proofing” the network. The device allows access to advanced data services such as virtual private wire services (VPWS), virtual private LAN service (VPLS) and hierarchical VPLS (HVPLS), simplifying the network and making it easier to manage, while gaining the added value of MPLS.

T-Marc 3308D offers excellent value for performance in a compact size (1.5RU by ½ shelf width), with 4 x10/100/1000BaseTx and 4 x dualspeed (100M/1G) fiber ports.

T-Marc 3308D comes with an internal power supply (AC or wide range DC) and with an optional external redundant AC power supply (AC/24VDC/-48VDC).

Flexible Control of Traffic and Services

To allow communications service providers to cope more efficiently with the increased demand for a more diverse range of services, T-Marc 3308D embeds sophisticated and flexible QoS and H-QoS capabilities such as hierarchical queuing, rate limiting and traffic shaping, advanced scheduling schemes, and intuitive service-oriented SLA configurations. This allows providers to benefit from the multiplexed nature of Carrier Ethernet while assuring SLA requirements during traffic congestion.

As an MPLS demarcation device, T-Marc 3308D supports various traffic engineering technologies like LDP and RSVP-TE. These technologies allow service providers to engineer data paths based on several attributes while offering the highest level of protection and assuring that requested paths can meet defined SLA requirements. They also ensure fast switchover time to minimize degradation or interruption of services in case of failure, and provide high availability and sub-50ms resiliency using G.8031*, G.8032, FRR, and Fast Ring standards.

L3 Support

T-Marc 3308D 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 and BGP. T-Marc 3308D also supports Dynamic Host Configuration Protocol (DHCP) for dynamically distributing network configuration parameters, Virtual Router Redundancy Protocol (VRRP), and GRE tunneling to deliver EoMPLSoGRE services. 

OAM Support

T-Marc 3308D supports a broad set of hardware-based OAM tools to help providers reduce their operating expenses (OPEX) and to assure their customers that they are meeting their agreed SLAs. T-Marc 3308D supports IEEE 802.1ag connectivity fault management (CFM) and ITU-T Y.1731, allowing service providers to monitor services end-to-end, identify connectivity and performance issues, enable SLA enforcement, and remotely isolate problems to avoid expensive truck rolls. The device also supports IEEE 802.3ah EFM-OAM at the link-level, and complies with MEF requirements, definitions and monitoring. Using RFC 2544 based embedded test heads and Y.1564 EtherSAM, T-Marc 3308D enables providers to pre-provision and remotely test services, thereby further reducing costly truck rolls, saving OPEX, and improving service quality. Additionally, T-Marc 3308D supports Zero Touch Provisioning to reduce the need for expensive support when connecting new customers. 

SDN Support

T-Marc 3308D provides full SDN support with comprehensive adoption of NETCONF, the network configuration protocol, and YANG, its data modeling language. It also supports OpenFlow by using a simple software upgrade to ViNOX OS (orderable separately).
  • Carrier Ethernet & MPLS (VPWS, VPLS and HVPLS) service demarcation device
  • Layer 3 features support: HW-based L3 forwarding with VRF support using static route, OSFP and BGP routing protocols
  • DOCSIS® 3.0/2.0/1.1 compliant
  • Software upgradeable to SDN with OpenFlow support
  • Wire speed, full duplex, non-blocking switching
  • Support for high scale of services using H-QoS
  • Multiple resiliency mechanisms
  • Extensive, field-proven, OAM support
  • MEF, IEEE, ITU-T and IETF standards compliance
  • Multi-vendor interoperable
  • Small footprint, 1.5RU height, ½ shelf width
Hardware Characteristics
  • 4 x 100FX/1000BaseX SFP ports
  • 4 x 10/100/1000BaseT Copper ports
  • 1 x DOCSIS 3.0/2.0/1.1 F-Connector
  • Non-blocking 8Gbps FD platform
  • Dual AC and dual feed 24/48VDC power supplies

  • All MEF services: E-Line, E-LAN, E-Tree, and E-Access 
  • IEEE 802.1Q bridging
  • IEEE 802.1ad Q-in-Q (TLS)
  • MPLS Services: VPWS, VPLS, HVPLS
  • Dynamic routing and signaling utilizing OSPF, IS-IS, RSVP-TE and T-LDP for path computation and signaling
  • IP Services: Virtual Routing and Forwarding (VRF)
  • Static IP routing, OSFPv2, BGPv4, BFD*, DHCP server/client/relay, VRRP


Sub-50ms ITU-T G.8031 EPS, ITU-T G.8032v2 R-APS and MSTP Fast Ring, Sub-50ms FRR, HVPLS dual homing, secondary LSP xSTP, Resilient Link, LAG (static/IEEE 802.3ad LACP) redundant AC power supply and dual feed 24/48VDC power supply

Quality of Service

Per-port/EVC/flow single/dual rate limiting, hierarchical rate limit per EVC, hierarchical QoS – multi-level SP, WRR and hybrid frames scheduling, CoS marking and mapping per EVC, IPv6 data path support, WRED, flow control for congestion handling

Multicast Management

IGMP snooping v1/v2/v3, IGMP proxy; multicast VLAN registration (MVR)


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

Testing and Monitoring

Hardware-based ITU-T Y.1564 and RFC 2544 test head and service performance analyzer, ITU-T Y.1731 PM, SM and SLM support, per-port/ EVC/VLAN/COS hardware-based flexible MAC-based loopbacks, TWAMP


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, IS-IS authentication

General Specifications

Dimensions: (H x W x D): 1.75” (1RU) x 8.7” x 9.25” (44 mm x 221mm x 235 mm) 
Weight: 2.42 lbs (1.1 kg)
Operating Temperature: 0°C to 50°C  (32˚F to 122˚F) 
Humidity:  5% to 95% non-condensing
Input power:  100-240VAC or 24/48VDC

Regulatory Compliance

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 compliance
  • MEF CE 2.0 type of services
  • Business services – MTU or site NID
  • Off-net MEF services termination
  • L3 VPN access
  • Small Cell backhaul
  • WiFi backhaul

Data Sheets
T-Marc 3308D Data Sheet (English)
A4 PDF (316.49 KB) • Letter PDF (309.54 KB) • updated: 2016-11-28
T-Marc 3308D Data Sheet (Spanish)
A4 PDF (317.33 KB) • Letter PDF (310.48 KB) • updated: 2016-11-28