Motorola DIMETRA MTS 2, Инструкция по установке, настройке и базовому обслуживанию

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MTS 2 and MTS 4 Installation, Con
fi
guration and Basic Service Manual Frame Relay Layer
should be inspected in order to determine the stability of the two PVCs as determined by the LMI
link management protocol. If there is indication of rapid transitioning of the states of the PVCs,
or the two PVCs are indicated as inactive - special attention should be given to the DLCI values
displayed. If this is correct, this indicates a problem with the LMI layer.
SC) status lmi
LMI frames transmitted 0
LMI frames received 0
Number of PVC state changes 2
Number of status inquiries tx 0
Number of status responses rx 0
Number of full status inquiries 0
Number of full status rx 0
Current primary PVC state 1
Current backup PVC state 1
Number of discards when disabled 0
The frames transmitted and the frames received counters should be incrementing between successive
invocations of
status lmi . If the received counter is not incrementing, this indicates that the remote
equipment is not responding to LMI enquiry packets transmitted by the Site Controller - the problem
is probably external to the Site Controller. However, if the receive counter is incrementing, it would
indicate a con
fi
guration issue, either with the LMI con
fi
guration, or with the con
fi
guration of the DLCI's
for the PVCs, check the DLCI numbers displayed by using the status fr command for the DLCI
numbering, and use the display con
fi
g command to verify the con
fi
guration for LMI.
Site Router
-------------
CRTP enable : Enabled(1)
CRTP context state packet time : 1000
CRTP session timeout : 3500
LMI enable : Enabled(1)
LMI full status polling counter (n391) : 6
LMI LIV time (t391) : 300
LMI error threshold (n392) : 3
LMI monitored events count (n393) : 4
Type of Service Latency Time : 5
Frame relay fragmentation size (bytes) : 80
Note that if LMI has been disabled in the Site Controller's con
fi
guration, no LMI exchanges will
take place, and the two PVCs will be marked as permanently active. In normal con
fi
gurations
this may be as a result of an unintended con
fi
guration error.
6802800U74-N September 2009
13-19