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Cisco ONS 15454 DWDM Reference Manual

Cisco ONS 15454 DWDM
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8-66
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 8 Transponder and Muxponder Cards
8.11.8 Layer 2 Over DWDM Protection
A FAPS switchover happens in the following failure scenarios:
DWDM line failures caused by a fiber cut
Unidirectional failure in the DWDM network caused by a fiber cut
Fiber pull on the master card trunk port followed by a hard reset on the master card
Hard reset on the master card
Hard reset on the slave card
An OTN failure is detected (LOS, OTUK-LOF, OTUK-LOM, or OTUK-LOM on the DWDM
receiver port in the case of ITU-T G.709 mode)
Trunk ports are moved to OOS,DSBLD (Locked,disabled) state
Improper removal of XFPs
A FAPS switchover does not happen in the following scenarios:
Slave card trunk port in OOS,DSBLD (Locked,disabled) state followed by a hard reset of the slave
card
OTN alarms raised on the slave card trunk port followed by a hard reset of the slave card
Dual failure in the VLAN ring caused by fiber pull on the master and slave cards and restoration of
a single failure
Dual failure in the VLAN ring caused by the trunk port of master and slave cards in OOS,DSBLD
(Locked,disabled) state and restoration of a single failure by placing one trunk port in IS state
Dual failure in the VLAN ring due to the trunk port of master and slave cards in OOS,DSBLD
(Locked,disabled) state followed by a hard or soft reset of the master card

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Cisco ONS 15454 DWDM Specifications

General IconGeneral
Chassis TypeDWDM
Form FactorRack-mountable
Slots17
Storage Temperature-40 to 158°F (-40 to 70°C)
Relative Humidity5% to 95% non-condensing
Power SupplyAC or DC
CoolingInternal fans
Operating Temperature23 to 104°F (-5 to 40°C)
Altitude0 to 6500 ft (0 to 1981 m)
Safety ComplianceEN 60950-1
EMI ComplianceFCC Part 15

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