Cisco SCE 2000 Installation And Configuration Manual page 34

Information About Topology Considerations
Dual link: Inline Installation
In this topology, one SCE 2000 is connected inline in two full duplex, GBE links
In case the two links are load-shared, asymmetrical routing might occur, and some of the flows may be
split, that is, the upstream packets of the flow go on one link, and the downstream packets go on the other
link.
When installed in this topology, the SCE 2000 completely overcomes this phenomenon, and provides its
normal functionality as if asymmetrical routing were not occurring in the two links.
Figure 3-2
Subscriber
PWR A
Subscriber
This topology supports both monitoring and control functionality, and is referred to as "inline"
connection mode.
Cisco SCE 2000 4xGBE Installation and Configuration Guide
3-6
Single SCE Platform Dual Link Inline Topology
Router
PWR B STATUS BYPASS
LINK RX TX
RX MM
SUB
Router
Link 1
LINK RX TX LINK RX TX
TX RX MM TX RX MM
GBE-1
LINE NET SUB LINE/CASCADE NET
Link 2
Chapter 3 Information About Topology
(Figure 3-2).
Router
Network
Cisco SCE 2000
Series
4xGBE
LINK RX TX
TX RX MM TX
GBE-2
Network
Router
OL-7824-07