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7-13
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
OL-7827-12
Chapter 7 Configuring the Connection
Enabling and Disabling Link Failure Reflection
In
link reflection on all ports
mode, all ports of the SCE platform are forced down and the link state of
the first port is reflected on all the ports.
When recovering from the failure state, the forced down ports (the other link) are brought up only after
the first failed port (link) has recovered. In addition, the reflection algorithm will not try to reflect failure
for this link again for the next 15 seconds, to avoid link stability problems on auto-negotiation.
Options
The following options are available:
•
The
on-all-ports
keyword enables reflection of a link failure to all ports.
•
Use the
no
form of this command to disable failure reflection to all ports (the
on-all-ports
keyword
is not used in the
no
form of the command).
The default value is
disabled.
How to Enable Link Failure Reflection on All Ports
Step 1
From the SCE(configif)# prompt, type
link failure-reflection on-all-ports
and press
Enter
.
Enables failure reflection to all ports.
How to Disable Link Failure Reflection on All Ports
Step 1
From the SCE(config if)# prompt, type
no link failure-reflection
and press
Enter
.
Disables failure reflection to all ports.
Configuring Link Failure Reflection in Linecard-Aware Mode (SCE 2000 only)
•
How to Enable Linecard-Aware Mode, page 7-14
•
How to Disable Linecard-Aware Mode, page 7-14
The
linecard-aware-mode
option is an additional extension of the link failure reflection feature for use
in MGSCP topologies. Use this option when the subscriber-side interface and the corresponding
network-side interface of the same link of the SCE 2000 platform are connected to the same linecard in
the router.