Datacom
DM2300 Family. Carrier Access Switches.
DM2300 Family
Carrier Access Switches

The DM2300 Carrier Access Switch offers a Carrier Grade solution to meet the growing needs of Service Providers, which require stringent SLA (Service Level Agreement) for their Ethernet Services. The DM2300 products are 1U fanless compact metal enclosure Gigabit Carrier Ethernet and Demarcation Switch with an internal full-range universal and automatic selection AC/DC power supply. Up to two devices can be installed side-by-side on a 19" rack.

Characteristics
  • 4 ports 10/100/1000Base-T (RJ45)
  • Up to 4 ports 100/1000Base-X (SFP)
  • Up to 8 E1 copper ports 2.048 kbit/s (RJ45)
  • DM2302 models with additional BITS, 10 MHz, 1 pps and ToD ports
  • Embedded RFC2544/Y.1564 Test Suite for Service Activation (Generator and reflector modes)
  • Fanless metallic desktop enclosure
  • Embedded AC/DC full-range power supply

 

Wire Speed L2

The packet switching is performed at hardware level, reaching up to 16 Gbps and supporting jumbo frames.

 

Management

Centralized management is provided through DMView NMS over Windows™ or Solaris™ platforms, supporting FCAPS model and redundancy. The equipment also provides Command Line Interface (CLI) with automatic syntax help, which is accessible by either Telnet or Console RS-232. SNMPv1, v2c and v3 are supported.

It is possible to keep up to 32 different configuration profiles and 2 firmware versions on the equipment, choosing which one will be loaded during the equipment initialization.

 

Security

To guarantee the network security, DM2300 family allows a reliable management structure through user authentication, authorization and accounting via RADIUS and TACACS+. It also supports alarms notifications, protection against Denial of Service (DoS/DDoS) and Syslog (remote and local). DM2300 switches also offer protection against broadcast, multicast and Destination Lookup Failure (DLF).

 

VLANs

Virtual LANs are fully supported on DM2300, allowing the usage of 4.094 VLANs simultaneously according to IEEE 802.1q. Double tagging (Q-in-Q) is also implemented, enabling the application of Ethernet Virtual Circuits (EVC).

 

TDM Services

DM2300 family has models supporting TDM Circuit Emulation, which enable Service Providers to grow their networks while preserve the existing equipment and infrastructure of their customers. Offering both Ethernet and E1 service ports on the same box, the DM2300 products can simplify the network management as well as the service operation and maintenance. A flexible circuit emulation engine allows the transport of legacy TDM services over L2 or L3 networks, also supporting synchronization with Adaptive Recovery Clock (ACR) mechanism.

 

RFC2544 and Y.1564 Test Suite

The DM2300 switches do not require any other external test equipment for verification, activation and deployment of Ethernet circuits. Implementing a complete RFC 2544 test suite, they provide automated test reports and maps the performance of each circuit before it goes into full operation. An intelligent loopback mode is also provided to allow operation with a remote tester. By using this feature service providers can even minimize truck rolls as all tests can be remotely triggered.

 

QoS

The DM2300 offers several queues which can be distributed dynamically among ports and services. Higher levels of SLA can be determined and differentiated according to each customer requirements through a dedicated QoS engine. A unique Ethernet service with diverse traffic classes can be prioritized through CoS (Class of Service) differentiation using a single VLAN. Multiple clients, services and classes of service are simultaneously supported, optimizing the bandwidth usage and simplifying the network infrastructure.

 

Ethernet OAM

Implementing an advanced set of OAM (Operations, Administration & Maintenance) functions accelerated by a dedicated hardware engine, the DM2300 switches are capable of detecting and reporting performance degradation and traffic interruptions in real time and in a proactive manner, dramatically reducing outage times and lowering OpEx (Operational Expenses). OAM functions are supported in multiple hierarchies, allowing interoperability between different service providers.

OAM functions for continuity check, latency and loss measurements are implemented by dedicated hardware, which can guarantee accuracy and predictability.

 

Protection mechanisms

Combined with a powerful OAM engine, the protection mechanisms available on DM2300 product line provide resiliency and redundancy by implementing the ITU-T G.8032 ERPS protocol, which integrated to the processing capacity of the equipment can assure a connection restoration time shorter than 50 ms for typical scenarios. Other protection schemes for mesh and linear network topologies such as Spanning Tree and Link Aggregation are also supported.

 

Synchronization

To address stringent network synchronization requirements the DM2300 family has the DM2302 variant which offer a stable Stratum-3 internal clock reference and dedicated synchronization ports on the front panel. Besides the support of direct connection of GPS equipment as a standard external reference the DM2300 products allow any Ethernet or E1 port to be part of the internal synchronization hierarchy. G.8261 (Synchronous Ethernet) with ESMC (Ethernet Synchronization Message Channel) and IEEE 1588-2008 OC (Ordinary Clock) are supported, assuring that requirements for transporting frequency and phase on 3G and 4G LTE Mobile Backhaul networks are completely met.

Applications

DM2301 as Ethernet Access and Demarcation device for delivering standardized and manageable Ethernet and E1 services.

 

 

DM2302 as transport and access device for Mobile Backhaul Network, assuring Ethernet and E1 services combined with advanced OAM, QoS and synchronization features.

 

 

DM2302 used for transporting accurate synchronization between separate SDH networks through a brown-field PTP unaware network.