Contents

1   Description

This instruction describes how to configure Heartbeats of the SCTP, using the Ericsson Command-Line Interface (ECLI):

The following parameters can be configured:

• Heartbeat Interval, the duration of the time intervals between cyclic heartbeats
• Heartbeat Maximum Burst, the limit of the number of heartbeats sent at the same time for path probing
• Heartbeat Reduction Timer, the percentage by which to decrease each new heartbeat attempt when Heartbeat Acknowledge is not received
• Initial Heartbeat Interval, the time interval between bursts of heartbeat chunks during initial path-probing
• Maximum Activate Threshold, the maximum number of consecutive successful heartbeats needed to switch back to the Primary Path
• Minimum Activate Threshold, the minimum number of consecutive successful heartbeats needed to switch back to the Primary Path
• Smooth Factor to allow smoothed heartbeats and avoid unexpected impact on traffic flow

2   Procedure

2.1   Configure SCTP Heartbeats

Prerequisites

• No documents are required.
• No tools are required.
• The following conditions must apply:
  • An Ericsson Command-Line Interface (ECLI) session in Exec mode is in progress.
  • A Managed Object (MO) SctpProfile exists.

Steps

1. Navigate to the SctpProfile MO, for example:

   >ManagedElement=1,Transport=1,Sctp=1,SctpProfile=0

2. Enter Config mode:

   (SctpProfile=0)configure

3. Set the Heartbeat Interval, attribute heartbeatInterval, for example:

   (config-SctpProfile=0)>heartbeatInterval=30000

4. Set the Heartbeat Maximum Burst, attribute hbMaxBurst, for example:

   (config-SctpProfile=0)>hbMaxBurst=2

5. Set the Heartbeat Reduction Timer, attribute heartbeatReductionTimer, for example:

   (config-SctpProfile=0)>heartbeatReductionTimer=50

6. Set the Initial Heartbeat Interval, attribute initialHeartbeatInterval, for example:

   (config-SctpProfile=0)>initialHeartbeatInterval=5000

7. Set the Maximum Activate Threshold, attribute maxActivateThr, for example:

   (config-SctpProfile=0)>maxActivateThr=1

8. Set the Minimum Activate Threshold, attribute minActivateThr, for example:

   (config-SctpProfile=0)>minActivateThr=1

9. Set the Smooth Factor, attribute smoothFactor, for example:

   (config-SctpProfile=0)>smoothFactor=50

10. Commit the settings:

    (config-SctpProfile=0)>commit

11. Verify the changes:

    (SctpProfile=0)>show

    The following is an example output:

    SctpProfile=0 hbMaxBurst=2 heartbeatInterval=30000 heartbeatReductionTimer=50 initialHeartbeatInterval=5000 maxActivateThr=1 minActivateThr=1 smoothFactor=50