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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 5 Ethernet Cards
5.2 5.2 E100T-12 Card
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-12 Faceplate and Block Diagram
The E100T-12 Ethernet card provides high-throughput, low-latency packet switching of Ethernet traffic
across a SONET network while providing a greater degree of reliability through SONET 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 time-division
multiplexing (TDM) traffic with packet-switched data traffic.
Each E100T-12 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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