Summary


This chapter discussed the various ONS 15454 Ethernet interface cards, including the E-Series, G-Series, CE-Series, and ML-Series cards. These interfaces are used to provide highly reliable point-to-point or multipoint Ethernet transport services over SONET/SDH rings.

The E-Series cards, which were the original ONS 15454 Ethernet interfaces, can be used for Layer 1 or Layer 2 services. However, these cards have been made largely obsolete by the newer card types and are typically found only in embedded networks. The E Series includes the E1000-2 and E1000-2-G for GigE connections, and the E100T-12 and E100T-G for 10-Mbps and 100-Mbps connections.

The G-Series and CE-Series cards are used to provide Layer 1 point-to-point private line services for subrate and line-rate forwarding of Ethernet frames for 10-Mbps, 100-Mbps, and 1000-Mbps services. The G Series contains a single card, the G1K-4, and provides up to four ports of subrate and line-rate GigE services. The CE Series includes the CE-100T-8 card and is used to provision 10/100 Mbps services. The CE-100T-8 also supports priority queuing through inspection of the ToS and CoS bits.

The ML-Series cards are used to provide Layer 2 and Layer 3 services. The ML Series includes the ML100T-12 (10/100Base-TX), ML100X-8 (100Base-FX and 100Base-LX10), and ML1000-2 (1000Base-SX and 1000Base-LX). The RPR network application using the ML-Series cards provides an efficient and resilient method of multipoint Ethernet transport in an optical network. The operation and configuration of RPR was discussed in detail in this chapter.




Building Multiservice Transport Networks
Building Multiservice Transport Networks
ISBN: 1587052202
EAN: 2147483647
Year: 2004
Pages: 140

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