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Installing a Cascaded System
Step 9
Connect the traffic port of SCE 2000 #2, this will cause a momentary down time until the network
elements from both sides of the SCE 2000 auto-negotiate with it and starts working (when
working inline). (See Dual Link: Two SCE 2000s Topology (on page 6-4).)
Step 10
When full control is needed, change the link mode on both SCE 2000s on both links to
'forwarding'. It is recommended to first configure the active SCE 2000 and then the standby. (See
Link Mode (on page 6-11).)
You can now start working with the Subscriber Manager.
Step 11
CLI Commands for Cascaded Systems
This section presents CLI commands relevant to the configuration and monitoring of a redundant
system.
Use the following commands to configure and monitor a redundant system:
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Topology-Related Parameters for Redundant Topologies
All four of the topology-related parameters are required when configuring a redundant topology.
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Configuring the Connection Mode
Use the following command to configure the connection mode, including the following
parameters:
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Cisco SCE 2000 4/8xFE Installation and Configuration Guide
6-10
connection-mode
[no] force failure-condition
Show interface linecard 'number' connection-mode
Show interface linecard 'number' physically-connected links
Connection mode — Redundancy is achieved by cascading two SCE platforms. Therefore
the connection mode for both SCE platforms may be either:
Inline-cascade
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Receive-only-cascade
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Physically-connected-links — For each of the cascaded SCE platforms, this parameter
defines the number of the link (Link 0 or Link 1) connected to this SCE platform.
Priority — For each of the cascaded SCE platforms, this parameter defines whether it is the
primary or secondary device.
On-failure — For each of the cascaded SCE platforms, this parameter determines whether the
system cuts the traffic or bypasses it when the SCE platform either has failed or is booting.
inline/receive only
physically connected links
behavior upon failure of the SCE platform
primary/secondary
Chapter 6
Cabling the Line Ports and Completing the Installation
OL-7826-05
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Table of Contents
Troubleshooting
