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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 5 Ethernet Cards
5.2 E100T-G Card
The ports autoconfigure to operate at either half or full duplex and determine whether to enable or
disable flow control. You can also configure Ethernet ports manually. Figure 5-1 shows the faceplate and
a block diagram of the card.
Figure 5-1 E100T-G Faceplate and Block Diagram
The E100T-G Ethernet card provides high-throughput, low-latency packet switching of Ethernet traffic
across a SDH network while providing a greater degree of reliability through SDH self-healing
protection services. This Ethernet capability enables network operators to provide multiple
10/100-Mbps access drops for high-capacity customer LAN interconnects, Internet traffic, and cable
modem traffic aggregation. It enables the efficient transport and co-existence of traditional TDM traffic
with packet-switched data traffic.
Each E100T-G card supports standards-based, wire-speed, Layer 2 Ethernet switching between its
Ethernet interfaces. The IEEE 802.1Q tag logically isolates traffic (typically subscribers). IEEE 802.1Q
also supports multiple classes of service.
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