Nokia 7705 SAR - Page 131

Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 131
Figure 13 MC-APS with Physical Port, Adapter Card and Node Protection
Figure 14 MC-APS Application
3.2.15.3.1 MC-APS and Inter-Chassis Backup
ICB (Inter-Chassis Backup) spoke SDPs are supported for use with Cpipe services
in an MC-APS configuration. ICB improves switch times, provides additional
protection in case of network failures, and reduces packet loss when an active
endpoint is switched from a failed MC-APS node to the protection node. Figure 15
shows an MC-APS group with pseudowire redundancy and ICB protection.
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7705 SAR
7705 SAR
MC-APS
Signaling
Link
MC-APS
group
CE
Link 1
Link 2
MPLS
network
7705 SAR
DACS
BSC
7705 SAR
7705 SAR
TDM
BTS
Node B
NxT1/E1
Ethernet
OC3/STM1 Ch
TDM 1+1 APS
OC3/STM1 Ch
TDM 1+1 APS
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