Cli Commands For Cascaded Systems; Topology-Related Parameters For Redundant Topologies; How To Configure The Connection Mode; How To Set The Link Mode - Cisco SCE8000 Installation And Configuration Manual

Cascaded Systems
Connect the traffic port of Cisco SCE8000 platform #2. This will cause a momentary down time until
Step 9
the network elements from both sides of the Cisco SCE8000 platform auto-negotiate with it and start
working (when working inline). (See
When full control is needed, change the link mode on both Cisco SCE8000 platforms on both links to
Step 10
'forwarding'. It is recommended to first configure the active Cisco SCE8000 platform and then the
standby. (See
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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Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
6-16
How to Set the Link Mode, page
connection-mode
[no] force failure-condition
show interface linecard 0 connection-mode
show interface linecard 0 physically-connected links
Topology-Related Parameters for Redundant Topologies, page 6-16
How to Configure the Connection Mode, page 6-17
How to Set the Link Mode, page 6-17
Monitoring the System, page 6-18
Connection mode — Redundancy is achieved by cascading two SCE platforms. Therefore the
connection mode for both SCE platforms is:
Inline-cascade
–
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 via an external optical bypass module when the SCE platform
either has failed or is booting.
If either the bypass or external-bypass option is configured, the optical bypass module must be
properly installed. If an optical bypass device is not detected, the command is executed but a
warning is issued. The system then enters warning mode until either the command is changed, or the
presence of an optical bypass device is detected
Chapter 6 Cabling the Line Ports and Completing the Installation
Dual Link: Two Cisco SCE8000s Topology, page
6-17.)
6-3.)
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