Headless Mode
During process restarts, CPU reload, or removal of CPU, the NCS 1004 operates in headless mode for up to
72 hours. During this time, traffic is not impacted, although the control plane is not up and running. Fault
propagation continues to operate for failures on client and trunk ports. However, you cannot provision anything
nor view operational data with a non-functional CPU. Performance monitoring data based on 15 minutes and
24 hour intervals is not supported with a non-functional CPU.
Trail Trace Identifier
The Trail trace identifier (TTI) feature helps you to identify the signal from the source to the destination within
the network. You can configure the TTI sent or expected string only in ASCII string format. When the expected
TTI string does not match the received TTI trace string, the controller goes down and the OTUK-TIM alarm
is raised. To configure TTI on the coherent DSP controllers, use the following commands:
configure
controller coherentDSP R/S/I/P tti {sent | expected} ascii tti-string
commit
The tti-string can have a maximum of 32 characters.
Note
The following sample displays how to configure TTI on a coherent DSP controller with the sent and expected
strings set to the same ASCII string. The state of the controller is up.
RP/0/RP0/CPU0:ios#config
Fri Mar 15 08:03:02.094 UTC
RP/0/RP0/CPU0:ios(config)#controller coherentDSP 0/1/0/1 tti sent ascii 1234
RP/0/RP0/CPU0:ios(config)#controller coherentDSP 0/1/0/1 tti expected ascii 1234
RP/0/RP0/CPU0:ios(config)#commit
Fri Mar 15 08:03:49.725 UTC
RP/0/RP0/CPU0:ios(config)#exit
RP/0/RP0/CPU0:ios#show controllers coherentDSP 0/1/0/1
Fri Mar 15 08:04:06.290 UTC
Port : CoherentDSP 0/1/0/1
Controller State : Up
Inherited Secondary State : Normal
Configured Secondary State : Normal
Derived State : In Service
Loopback mode : None
BER Thresholds : SF = 1.0E-5 SD = 1.0E-7
Performance Monitoring : Enable
Alarm Information:
LOS = 0 LOF = 0 LOM = 0
OOF = 0 OOM = 0 AIS = 0
IAE = 0 BIAE = 0 SF_BER = 0
SD_BER = 0 BDI = 1 TIM = 0
FECMISMATCH = 0 FEC-UNC = 0
Detected Alarms : None
Bit Error Rate Information
Configuring Controllers
40
Configuring Controllers
Headless Mode
To Next Page
Loading...
Need help?
General
