Sce 2000 Configuration; Connection Mode Parameter - Cisco SCE 2000 Platform SCE 2000 4/8xFE Installation And Configuration Manual

Chapter 3 Topology

SCE 2000 Configuration

There are four topology-related parameters:
Connection mode — Can be any one of the following, depending on the physical installation
•
of the SCE 2000 (Refer to Connection Mode Parameter (on page 3-9)):
Physically-connected-links — In cascaded configurations, this parameter defines the number
•
of the link connected to this SCE 2000 (Refer to Physically Connected Links Parameter (on
page 3-10)).
It is applicable only in a cascade topology.
• Priority — This parameter defines which is the primary SCE 2000 (Refer to Priority (on
page 3-10)).
It is applicable only in a cascade topology.
On-failure — This parameter determines whether the system cuts the traffic or bypasses it
•
when the SCE 2000 either has failed or is booting. It is not applicable to receive-only
topologies (Refer to On-Failure Mode Parameter (on page 3-10)).
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:
• Cascade — Indicates a two SCE 2000 topology where the SCE 2000s are connected via the
cascade ports.
The connection mode parameter is determined by the physical deployment of the SCE 2000, as
follows:
Single SCE 2000 inline installation = "Inline" connection mode.
•
• Single SCE 2000 external switch installation = "Receive-only" connection mode.
• Two SCE 2000 inline installation = "Inline-cascade" connection mode.
Two SCE 2000 external switch installation = "Receive-only-cascade" connection mode.
•
OL-7826-05
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.
Cisco SCE 2000 4/8xFE Installation and Configuration Guide
Physical Topologies
3-9