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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 2 Functional Description
Ethernet Line Cards
8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card
The 8-port 10-Gigabit Ethernet (8x10GE) 2:1 oversubscribed line card has eight 10-Gigabit Ethernet,
oversubscribed, XFP module ports. Two 10 Gigabit Ethernet ports connect to XAUI interfaces on each
of the four NPUs.
The 8x10GE 2:1 oversubscribed line card is available in base, extended, and low-queue versions. All
versions are functionally equivalent, with the extended version of the line card providing typically twice
the service scale of the base line card.
Figure 2-19 shows the block diagram for the 8x10GE 2:1 oversubscribed line card, and Figure 2-20
shows the front panel connectors and indicators.
Figure 2-19 8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card Block Diagram
8x10GE
Line Card
243065
B
a
c
k
p
l
a
n
e
Fabric
Interface
Chip
GE
PHY
FPGA
NPU
NPU
FPGA
10GE XFP
10GE XFP
NPU
NPU
10GE XFP
10GE XFP
10GE XFP
10GE XFP
10GE XFP
10GE XFP
CPU