|
|
|
|
|
The Sub-Network Connection Protection (SNCP) is path protection switching that is initiated in the path terminating equipment when the node is in SDH mode. In SNCP, protection is initiated on a failure in the path. It is required to create two paths for each circuit - one for work and other for protection. Traffic from the source node is bridged on both working and the protection paths, so that the destination node selects the signals from the working or protection paths.
Maximum number of connections
Capacity |
Maximum number of connections for STM-1 |
Maximum number of connections for STM-4 |
Maximum number of connections for STM-16 |
Maximum number of connections for STM-64 |
|---|---|---|---|---|
VC3 |
3 |
12 |
48 |
192 |
VC4 |
1 |
4 |
16 |
64 |
VC4_4c |
-- |
1 |
4 |
16 |
VC4_16c |
-- |
-- |
1 |
4 |
VC4_64c |
-- |
-- |
-- |
1 |
SNCP is provisioned while configuring protection for cross-connects. The Connections menu allows you to execute external commands on SNCP provisioned cross-connections. These external commands cannot be applied to MSP groups.