Sce 2000 Configuration; Connection Mode Parameter - Cisco CE 2000 Platform SCE 2000 4xGBE Installation And Configuration Manual

Physical Topologies

SCE 2000 Configuration

There are four topology-related parameters:
Connection mode: Can be any one of the following, depending on the physical installation of
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the SCE 2000:
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Physically-connected-links: In cascaded configurations, this parameter defines the number of
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the link connected to this SCE 2000.
It is applicable only in a cascade topology.
• Priority: This parameter defines which SCE 2000 platform is the primary device.
It is applicable only in a cascade topology.
On-failure: This parameter determines whether the system cuts the traffic or bypasses it when
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the SCE 2000 either has failed or is booting. It is not applicable to receive-only topologies.
Any of these parameters may be configured via either the setup command or the
connection-mode command.

Connection Mode Parameter

The connection mode parameter refers directly to the physical topology in which the SCE 2000 is
installed. The connection mode depends on two factors:
Inline/Receive-only:
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Cascade: Indicates a two SCE 2000 topology where the SCE 2000 platforms are connected
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via the cascade ports.
The connection mode parameter is determined by the physical deployment of the SCE 2000, as
follows:
Single SCE 2000 bump-in-the-wire installation = "Inline" connection mode.
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Single SCE 2000 optical splitter installation = "Receive-only" connection mode.
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Two SCE 2000 bump-in-the-wire installation = "Inline-cascade" connection mode.
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• Two SCE 2000 optical splitter installation = "Receive-only-cascade" connection mode.
SCE 2000 4xGBE Installation and Configuration Guide
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Inline: single SCE 2000 inline
Receive-only: single SCE 2000 receive-only
Inline-cascade: two SCE 2000s inline
Receive-only-cascade: two SCE 2000s receive-only
Inline: The SCE 2000 resides on the data link between the subscriber side and the
network side, thus both receiving and transmitting packets.
Receive-only: The SCE 2000 does not reside physically on the data link. Data is
forwarded to the SCE 2000 via an external switch. The SCE 2000 itself receives only and
does not transmit.
Chapter 3 Topology
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