Ethernet over SDH – Flexible Ethernet via resilient SDH Networks
Not all sections of the network can be converted simultaneously to a packet-based network. In some cases, such as for example application-critical networks, resilient SDH technology continues to be used.
In contrast an increasing number of terminal equipment is however only being developed with an Ethernet interface. Therefore network operators have to forward Ethernet data streams via SDH networks more and more often. By employing special functions, the asynchronous Ethernet packages have to be converted into a synchronous SDH data stream.
When using EoS (Ethernet over SDH), the Ethernet frames are enclosed in SDH in line with GFP (Generic Frame Protocol) and conveyed by SDH in VC-12 or VC-3 groups (virtual container). EoS transmission complies with the relevant ITU-T standards and allows transparent interaction with conventional SDH networks, as well as any other EoS standard compliant system.
The UMUX family is a Next-Generation Multi-Service Access system that can provide a variety of applications for public and private network operators. The UMUX family is especially equipped for cross-connect systems with an STM-4 multiplex system and a wide range of subscriber interfaces, including integrated Ethernet support.
- Bit rate aggregate 622 Mbps and 155 Mbps
- Bit rate tributary 155 Mbps
- VLAN tagging and VLAN tag stacking
- Virtual concatenation (VC12, VC3)
- Generic Framing Procedure (GFP)
- Sub-Network Connection Protection (SNCP)
- Link Capacity Adjustment Scheme (LCAS)
- Synchronous Equipment Timing Source (SETS)
- Multiplex Section Protection (MSP)
- Rapid Spanning Tree Protocol
- Can be used even under difficult ambient conditions (outdoors) and where space is limited.
