Overview

This article explains the meaning of the SNMP trap alarm: SCF address has become unreachable. This section also provides a command to check the status.

 

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Information

The SCF unreachable alarm indicates that an SCF node used in the CAMEL charging procedure has become unreachable. This is related to the SS7 network and must be investigated by the SS7 Network Core team.

Since the SMSC is usually configured with multiple SCF nodes, one node being unreachable does not impact the traffic.

 

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Solution

Use the following command to check the status:

$ tp_walkall --tp_pbc | grep -i scf

Output:

pbcScfGlobalTitle.1 = STRING: 543200710728 pbcScfGlobalTitle.2 = STRING: 543200710713 pbcScfGlobalTitle.3 = STRING: 543200710754 pbcScfGlobalTitle.4 = STRING: 543200710761 pbcScfGlobalTitle.5 = STRING: 543200710762 pbcScfGlobalTitle.6 = STRING: 543200710787 pbcScfGlobalTitle.7 = STRING: 543200710742 pbcScfGlobalTitle.8 = STRING: 543200710739 pbcScfGlobalTitle.9 = STRING: 543200710749 pbcScfGlobalTitle.10 = STRING: 543200710712 pbcScfGlobalTitle.11 = STRING: 543200710795 pbcScfGlobalTitle.12 = STRING: 543200710723 pbcScfGlobalTitle.13 = STRING: 543200710700 pbcScfGlobalTitle.14 = STRING: 543200710720 pbcScfGlobalTitle.15 = STRING: 543200710799 pbcScfGlobalTitle.16 = STRING: 543200710789 pbcScfGlobalTitle.17 = STRING: 543200710747 pbcScfGlobalTitle.18 = STRING: 543200710710 pbcScfGlobalTitle.19 = STRING: 543200710797 pbcScfOperationalState.1 = INTEGER: responding(2) pbcScfOperationalState.2 = INTEGER: responding(2) pbcScfOperationalState.3 = INTEGER: responding(2) pbcScfOperationalState.4 = INTEGER: responding(2) pbcScfOperationalState.5 = INTEGER: responding(2) pbcScfOperationalState.6 = INTEGER: responding(2) pbcScfOperationalState.7 = INTEGER: responding(2) pbcScfOperationalState.8 = INTEGER: responding(2) pbcScfOperationalState.9 = INTEGER: responding(2) pbcScfOperationalState.10 = INTEGER: responding(2) pbcScfOperationalState.11 = INTEGER: responding(2) pbcScfOperationalState.12 = INTEGER: responding(2) pbcScfOperationalState.13 = INTEGER: responding(2) pbcScfOperationalState.14 = INTEGER: responding(2) pbcScfOperationalState.15 = INTEGER: responding(2) pbcScfOperationalState.16 = INTEGER: responding(2) pbcScfOperationalState.17 = INTEGER: responding(2) pbcScfOperationalState.18 = INTEGER: responding(2) pbcScfOperationalState.19 = INTEGER: responding(2)

 

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Additional Reference

For more details, please refer to the NMM SNMP Trap Reference Guide, available in the NewNet Download Center.

 

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