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Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5
78-18133-01
Chapter 14 Configuring Resilient Packet Ring on the ML-Series Card
Configuring RPR
Step 4
Router(config-if)# carrier-delay msec
milliseconds
(Optional) Sets the carrier delay time. The default setting
is 200 msec, which is optimum for SONET protected
circuits.
Note The default unit of time for setting the carrier
delay is seconds. The msec command resets the
time unit to milliseconds.
Step 5
Router(config-if)# pos trigger defect
ber_sd-b3
(Optional) Configures a trigger to bring down the POS
interface when the SONET bit error rate exceeds the
threshold set for the signal degrade alarm. Bringing the
POS interface down initiates the RPR wrap.
This command is recommended for all RPR POS
interfaces, since excessive SONET bit errors can cause
packet loss on RPR traffic.
Note This command should not be used when a Cisco
ONS 15310 is part of the ring. It may cause
inconsistent RPR wrapping.
Step 6
Router(config-if)# no shutdown
Enables the POS port.
Step 7
Router(config-if)# interface pos 1
Enters the interface configuration mode to configure the
second POS interface that you want to assign to the SPR.
Step 8
Router(config-if)# encapsulation lex
Sets POS interface encapsulation as LEX (default). RPR
on the ML-Series card requires LEX encapsulation.
Step 9
Router(config-if)# spr-intf-id
shared-packet-ring-number
Assigns the POS interface to the SPR interface. The
shared packet ring number must be 1 (the same shared
packet ring number that you assigned in Step 3), which is
the only shared packet ring number that you can assign
to the SPR interface.
Step 10
Router(config-if)# carrier-delay msec
milliseconds
(Optional) Sets the carrier delay time. The default setting
is 200 milliseconds, which is optimum for SONET
protected circuits.
Step 11
Router(config-if)# pos trigger defect
ber_sd-b3
(Optional) Configures a trigger to bring down the POS
interface when the SONET bit error rate exceeds the
threshold set for the signal degrade alarm. Bringing the
POS interface down initiates the RPR wrap.
This command is recommended for all RPR POS
interfaces since excessive SONET bit errors can cause
packet loss on RPR traffic.
Step 12
Router(config-if)# no shutdown
Enables the POS port.
Step 13
Router(config-if)# end
Exits to privileged EXEC mode.
Step 14
Router# copy running-config
startup-config
(Optional) Saves the configuration changes to NVRAM.
Command Purpose