2.12.8 Troubleshooting

The troubleshooting scenarios for SLS Rotation:

• If no SLS Rotation algorithm is applied.
  • Ensure that correct parameters are set on ingress and egress Linkset connected to vSTP MP as per SLS Rotation Algorithm.
  • Ensure that appropriate m3rloptions MO parameters are set.
  • SLS Rotation algorithms are specific to domain and type of message such as, SCCP or ISUP. Therefore, the configurations must be done accordingly. For example, Algorithm Use of Other CIC bit is applicable only for ITU ISUP messages.
• If ANSI SLS in Egress Message is not correct as per the SLS Rotation Algorithm applied:
  • Consider that for ANSI domain, the standard 5th Bit Rotation is always applicable and it is modified in Egress Message.
• If SLS Rotation on Domain Conversion is not working properly:
  • Few parameters can be set on Linksets, therefore while performing domain conversion, ensure that you specify the correct parameter values to get desired output.
  • For ANSI, check value of parameter ASLS8 in incoming linkset.
  • Consider that the interaction between different algorithms of SLS Rotation during domain conversion has certain exceptions.
  • For more details, see Interaction of SLS Conversion algorithms during network conversion.
• If certain SLS Algorithm does not get applied.
  • When multiple algorithms are applied to a particular domain message type, the SLS Rotation algorithms are applied as per points mentioned in slide 31 and 32. Combining SLS Rotation Options.
  • Modifying SLS Rotation related parameter values can render one of SLS Rotation Algorithm as inapplicable. Revert the modified parameter values to return to the previous manner of load sharing.
  • Contact My Oracle Support (MOS) if the problem persists.