Nokia 7705 SAR - Page 432

7705 SAR Interfaces
432
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
Context config>port>sonet-sdh
Description This command configures the speed of a SONET/SDH port. To change the port speed, the
port must be administratively shut down and all channels must be removed. When the port
speed is changed, the default channel configuration is recreated.
This option is available, but may not be configured, since only one speed type is supported.
The no form of this command reverts back to the default value.
Default oc3
Parameters oc3 — sets the speed of the port to OC3
threshold
Syntax threshold {ber-sd | ber-sf} rate threshold-rate
no threshold {ber-sd | ber-sf}
Context config>port>sonet-sdh
Description This command configures the line signal (b2) degradation bit error rate (BER) and line signal
failure thresholds.
Alarms are raised if the line signal bit interleaved parity error rates exceed either the
degradation or failure thresholds. If the failure threshold is crossed, the link will be set to
operationally down.
The no form of this command reverts to the default value.
Default threshold ber-sd 6 - signal degrade BER threshold of 10
-6
threshold ber-sf 3 - signal failure BER threshold of 10
-3
Parameters ber-sd — specifies the BER for signal degradation
ber-sf — specifies the BER for signal failure
threshold-rate — specifies the BER negative exponent (n in 10
-n
), expressed as a
decimal integer
Values 3 to 9 (10
-3
to 10
-9
)
tx-dus
Syntax [no] tx-dus
Context config>port>sonet-sdh