To configure IGP history from the IGP topology map

Note: For accurate results, you must ensure that the CPAM and CPAA are administratively up.

Steps
 
1 

Choose Tools→Route Analysis→IGP Topology from the NFM-P main menu. The IGP Topology form opens.

2 

Right-click on the topology map and choose IGP History from the contextual menu.

3 

Choose the IGP topology from the contextual menu. The IGP Graphical History form opens.

4 

Configure the Time Interval Type parameter.

5 

Perform one of the following:

  1. If you selected Rewind From/To Interval, configure the Start Time and End Time parameters.

  2. If you selected Rewind From Current Time, configure the Time Interval (in minutes) parameter.

6 

Enable the following parameters, as required:

  • Configure Link Specific Filters—specifies whether, in the graphical history, the specified link differences and link properties are included. You must enable the Configure Link Specific Filters parameter to configure the filter.

    Note:

    You can choose any combination of link differences and link properties. If you choose more than one difference or property, the CPAM uses an OR filter.

  • Include/Exclude All Link Differences — specifies whether all of the differences between the two checkpoints included in the graphical history are included. You must enable the Configure Link Specific Filters option to configure this option and to enable or disable included link differences. This option is enabled by default, and all of the link differences are included.

  • Include/Exclude All Link Properties — specifies whether all of the differences between specific properties of the two checkpoints included in the graphical history are listed. You must enable the Configure Link Specific Filters option to configure this option and to enable or disable included link properties. This option is enabled by default, and all of the link properties are included.

When you enable the Configure Link Specific Filters option, you can include or exclude the following link differences:

  • Property change and flap

  • Property change and added

  • Property change and missing

  • Missing

  • Added

  • Property change

  • Status flap

  • None

When you enable the Configure Link Specific Filters option, you can include or exclude the following link properties:

  • Operational state

  • Operational state change counter

  • Metric

  • Metric change counter

  • Administrative groups

  • Administrative groups change counter

  • TE metric

  • TE metric change counter

  • SRLG values

  • SRLG change counter

  • Maximum bandwidth (kbps)

  • Unreserved bandwidth (Priority 0) (kbps)

  • Unreserved bandwidth (Priority 1) (kbps)

  • Unreserved bandwidth (Priority 2) (kbps)

  • Unreserved bandwidth (Priority 3) (kbps)

  • Unreserved bandwidth (Priority 4) (kbps)

  • Unreserved bandwidth (Priority 5) (kbps)

  • Unreserved bandwidth (Priority 6) (kbps)

  • Unreserved bandwidth (Priority 7) (kbps)

  • Link ID

7 

Click on the OK button. The IGP History Topology map opens.

8 

Click on the Impact Analysis button. The Impact Analysis Time Range (Edit) form opens with the following lists:

9 

Click on the OK button. The Impact Analysis Time Range (Edit) form opens with the following lists:

  • IP path statistics and affected services statistics for:

    • Total number of IP Paths Impacted

    • Total number of IP Paths Re-Routed

    • Total number of IP Paths Failed

    • Total number of IP Paths that have no route

    • Total number of IP Paths that failed auto-OAM

    • Total number of IP Paths that are diverging

    • Total number of IP Paths that lost ECMP

    • Total number of IP Paths that exceeded OAM SLA thresholds

  • LSP statistics and affected services statistics for:

    • Total number of LSPs Impacted

    • Total number of LSPs that Re-Routed

    • Total number of LSPs that Failed

    • Total number of LSPs that failed auto-OAM

    • Total number of LSPs that are diverging

    • Total number of LSPs with an active primary

    • Total number of LSPs with an active secondary or standby

    • Total number of LSPs that switched to bypass or detour

    • Total number of LSP Paths that failed

    • Total number of LSP Paths that exceeded OAM SLA thresholds

10 

Choose an entry and click on the View Impact button to view specific information about the IP paths or LSPs, and affected services. The Details: Reason form opens with the IP Path Monitors tab displayed for IP paths, or the LSP Path Monitors tab displayed for LSPs.

11 

Click on the Search button to list the IP paths or LSP paths.

12 

Click on the Services tab to view information about the affected services.

13 

Close the Details: Reason form.

14 

Close the Impact Analysis Time Range (Edit) form.

End of steps

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