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Transmode has introduced two integrated Layer-2 Ethernet products that address Native Packet Optical applications such as mobile backhaul, video distribution and business Ethernet services.

Native Packet Optical transport is an architecture that is ideally suited to the edge of an optical network as it keeps the traffic payload as standard native Ethernet frames.

This provides the operator with better visibility and manageability of Layer-2 traffic, better aggregation of traffic to ‘fill the pipes’ prior to hand over to an OTN core, and lowers the cost of Packet Optical integration at the edge of the optical network.

Transmode’s range of Layer-2 Ethernet products are said to form an integral part of the Native Packet Approach and the range has now been expanded with two new components.

First, a second-generation version of the Layer-2 Ethernet Muxponder (EMXP), the EMXP II, which includes increased processing power and support for a wider range of Layer-2 features, and second, the introduction of two- and five-port Ethernet Demarcation Units (EDU).

Both solutions are available in the TM-series release 15.

Sten Nordell, chief technology offer at Transmode, said: ‘The Native Packet Optical approach offers considerable advantages to network operators.

‘Using components based on standard Ethernet transport these operators can build simplified integrated Layer 1 and 2 networks that provide better service visibility, better metro aggregation and better OAM, at the lowest possible cost,’ he added.

The enhanced EMXP II is focused on Transport Ethernet, which provides Layer-2 Ethernet service provisioning and aggregation for transport applications with extremely low sub-2microsecond latency and virtually zero jitter.

This makes the unit ideally suited to Ethernet applications where latency and jitter are important, such as services for financial institutions, video distribution and LTE backhaul.

The EMXP II is available in two variants with two 10G Ethernet ports and either 10 or 22 Gigabit Ethernet ports.

The unit supports a range of Ethernet functionality including MEF E-Line, E-LAN and E-Tree services with differentiated class of service and bandwidth profiles, and 802.1ag and Y.1731 service OAM.

All ports support Synchronous Ethernet, G.8032 Ethernet Ring Protection, 802.3ad Link Aggregation and port mirroring.

The compact two- and five-port EDUs are ideally suited to customer premise applications and are said to provide leading Ethernet demarcation functionality.

Using a unique approach with hardware processing of high priority traffic, the EDUs ensure the lowest possible latency and jitter, again making the units ideal for low latency and jitter applications.

The range includes units that provide either demarcation of a single Gigabit Ethernet client signal or aggregation of up to four client signals onto a Gigabit Ethernet line within the compact CPE device.

The units’ advanced functionality includes service mapping which allows providers to quickly create Ethernet Virtual Circuits (EVCs) for MEF Certified E-Line and E-Tree services.

Services can be mapped with advanced bandwidth policies that establish committed and excess throughput and burst rates (CIR, EIR, EBS, CBS), as well as defined Ethernet and IP service priorities.

Furthermore, as hardware-based units they can maintain up to 100 Y.1731 and 802.lag OAM sessions per unit, enabling accurate and precise OAM Performance Monitoring for large-scale wireless backhaul and business service applications.

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