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CONTAP-558179: Command metrocluster calibration measure reports lower than expected bandwidth

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ontap-9
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metrocluster
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Issue

Lower than expected bandwidth is reported when running the metrocluster configuration-settings calibration measure command:
Example:


  • cluster_A::> metrocluster configuration-settings calibration show
                                       Home Latency Bandwidth Percent of Collection
    ID Subnet         Node             Port (ms)    (Mb/s)    Retrans    Time
    -- -------------- ---------------- ---- ------- --------- -------    ----------
    1  172.16.1.0     cluster_A-02
                                       e1a-111
                                            0.063   22323     0.0047     7/11/2025 04:31:19
                      cluster_A-01
                                       e1a-111
                                            0.063   23645     0.008399999999999999
                                                                         7/11/2025 04:31:44
       172.16.2.0     cluster_A-02
                                       e1b-121
                                            0.063   22956     0.0018     7/11/2025 04:31:31
                      cluster_A-01
                                       e1b-121
                                            0.057   23453     0.0076     7/11/2025 04:31:56
    2  172.16.1.0     cluster_A-02
                                       e1a-111
                                            0.06900000000000001
                                                    24257     0.0091     1/24/2025 05:11:58
                      cluster_A-01
                                       e1a-111
                                            0.078   23345     0.0036     1/24/2025 05:12:22
       172.16.2.0     cluster_A-02
                                       e1b-121
                                            0.073   23968     0.0057     1/24/2025 05:12:10
                      cluster_A-01
                                       e1b-121
                                            0.07000000000000001
                                                    23222     0.0068     1/24/2025 05:12:34

  • The above example reports 22GB-25GB, but the network is capable of 100GB

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