Information About Topology Considerations
Information About Topology-Related Parameters
Refer to the following sections to determine the correct values for all topology-related parameters before
beginning run the initial setup of the SCE 2000 .
•
•
•
•
•
SCE 2000 Configuration
There are four topology-related parameters:
•
•
•
•
Any of these parameters may be configured via either the setupcommand or the
connection-modecommand.
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:
•
•
The connection mode parameter is determined by the physical deployment of the SCE 2000 , as follows:
Cisco SCE 2000 4xGBE Installation and Configuration Guide
3-10
SCE 2000 Configuration
Connection Mode Parameter
Physically Connected Links Parameter
Priority
On-Failure Mode Parameter
Connection mode — Can be any one of the following, depending on the physical installation of the
SCE 2000 (Refer to
Connection Mode Parameter
–
Inline — single SCE 2000 inline
Receive-only — single SCE 2000 receive-only
–
Inline-cascade — two SCE 2000 s inline
–
Receive-only-cascade — two SCE 2000 s receive-only
–
Physically-connected-links — In cascaded configurations, this parameter defines the number of the
link connected to this SCE 2000 (Refer to
It is applicable only in a cascade topology.
Priority — This parameter defines which is the primary SCE 2000 (Refer to
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
Inline/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.
Cascade — Indicates a two SCE 2000 topology where the SCE 2000 are connected via the cascade
ports.
):
Physically Connected Links Parameter
).
Chapter 3
Information About Topology
).
Priority
).
OL-7824-06