Configuring Ports
Page 138
7750 SR OS Interface Configuration Guide
DS3 path configured for PLCP mapping:
•
Supports transmit and receive of the Ax, Px and C1 bits.
•
Ignores the received Z1, Z2, Z3 octets of the PLCP frame and transmits all zeros in the Z1,
Z2, Z3 octets of the PLCP frame.
•
Ignores the received F1 octet of the PLCP frame, and transmits all zeros in the F1 octet of
the PLCP frame.
•
Samples and uses for performance monitoring received FEBE bits of G1 octet and
transmits the number of BIP-8 errors detected by the receive framer using the FEBE bits
of the G1 octet.Detects a PLCP Far End Alarm when 10 consecutive PLCP frames are
received with the RAI bit set, and transmits a set RAI bit when the local port has declared
Table 22: Alarm State Interactions
Content of the Received Signal
Status Field Values
Local
Signal
Local
Frame
Local
Payld
Local
PLCP
Framing
Far End
Framing
Far End
PLCP
Framing
Path
Sonet
Alarm
Status
Path Oper
Status
Atm
Interface
Oper
Status
PLCP
Alarm
State
Y
Y
Y
Y
Y
Y
None
Up
Up
No Alarm
Y
Y
Y
Y
Y
Prob
None
Up
Lower
Layer
Down
Far End
Alarm Rx
Y
Y
Y
Y
Prob
Prob
RDI
Down
Lower
Layer
Down
Far End
Alarm Rx
Y
Y
Y
Prob
Y
N/A
None
Up
Lower
Layer
Down
Incoming
LOF
Y
Y
Y
Prob
Prob
N/A
RDI
Down
Lower
Layer
Down
Incoming
LOF
Y
Prob
N/A
N/A
N/A
N/A
LOF
Down
Lower
Layer
Down
Incoming
LOF
AIS
N/A
N/A
N/A
N/A
N/A
AIS
Down
Lower
Layer
Down
Incoming
LOF
Prob
N/A
N/A
N/A
N/A
N/A
LOS
Down
Lower
Layer
Down
Incoming
LOF
Содержание 7750 SR OS
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Страница 8: ...Page 8 7750 SR OS Interface Configuration Guide List of Tables ...
Страница 10: ...Page 10 7750 SR OS Interface Configuration Guide List of Figures ...
Страница 14: ...Preface Page 14 7750 SR OS Interface Configuration Guide ...
Страница 16: ...Getting Started Page 16 7750 SR OS Interface Configuration Guide ...
Страница 184: ...Card MDA and Port Command Reference Page 184 7750 SR OS Interface Configuration Guide ...
Страница 417: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 417 4 5 SAP PVT 1 1 up up A ima2 ...
Страница 429: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 429 Cells 0 0 Unknown VPI VCI Cells 0 A ALA 49 ...
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Страница 438: ...Debug Commands Page 438 7750 SR OS Interface Configuration Guide ...
Страница 444: ...Index Page 444 7750 SR OS Interface Configuration ...