Cisco SFE2000P User Manual

3-5
Cisco SCE 2000 4xGBE Installation and Configuration Guide
OL-7824-06
Chapter 3 Information About Topology
Information About Topology Considerations
Single Link: Inline Topology
Typically, the SCE 2000 is connected in a full duplex GBE link between two devices (Router, BRAS,
etc.). When the SCE 2000 is installed as an inline installation, it physically resides on the data link
between the subscribers and the network.
Figure 3-1 Single SCE Platform Single Link: In-line Topology
When configuring the SCE 2000 , an inline installation is referred to as “inline” connection mode.
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, i.e. 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.
LINK
RX
Cisco SCE 2000 Series
4xGBE
TX
RX
MM TX
LINK
RX
TX
RX
MM TX
LINK
RX
TX
RX
MM TX
LINK
RX
TX
RX
MM
TX
GBE-1
SUB LINE
NET
PWR B
STATUS
PWR A
BYPASS
GBE-2
SUB
LINE/CASCADE NET
RouterRouter
Subscriber
92798
Network
Port 2
network
Port 1
subscriber

Cisco SFE2000P Specifications

General

Brand	Cisco
Model	SFE2000P
Category	Network Router
Language	English