Datasheet

5-7
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 5 Ethernet Cards
5.3 E1000-2-G Card
Figure 5-2 shows the card faceplate and a block diagram of the card.
Figure 5-2 E1000-2-G Faceplate and Block Diagram
The E1000-2-G Gigabit 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 enables network operators to provide multiple 1000-Mbps access
drops for high-capacity customer LAN interconnects. It enables efficient transport and co-existence of
traditional TDM traffic with packet-switched data traffic.
Each E1000-2-G card supports standards-based, Layer 2 Ethernet switching between its Ethernet
interfaces and SDH interfaces on the ONS 15454 SDH. The IEEE 802.1Q VLAN tag logically isolates
traffic (typically subscribers).
Gigabit Ethernet
PHYS
A/D Mux
Flash
DRAM
CPU
Buffer
memory
Control
memory
Ethernet
MACs/switch
61878
FPGA BTC
B
a
c
k
p
l
a
n
e
E1000-2-G
FAIL
ACT
1
SF
33678 12931
2
RX
TX
RX
TX
ACT/LINK
ACT/LINK