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    Monitoring the TCP Resequencing Buffer Management Functions

    Purpose

    Display the configuration, current per-virtual router, and per-router state of the TCP resequencing buffer management functions. You can use the vrfName variable to specify a specific VRF for which you want to view information.

    Action

    To display the configuration, current per-virtual router, and per-router state of the TCP resequencing buffer management functions:

    host1#show tcp resequence-buffers
    TCP Resequence Buffer Management Configuration
      Global Maximum: ###
        Default Per-VR Maximum: 250
        Default Connection Maximum: 15
      This VR Maximum: 300
      This VR Connection Maximum: 15
    TCP Resequence Buffer Management State
      Global buffers in use: 5
                 High Water: 15
          VR Buffers in use: 17
                 High Water: 32
      Buffers Discarded Because Global Limit Exceeded: 25
          Buffers Discarded Because VR Limit Exceeded: 15

    Meaning

    Table 1 lists the show tcp resequence-buffers command output fields.

    Table 1: show tcp resequence-buffers Output Fields

    Field Name

    Field Description

    TCP Resequence Buffer Management Configuration

    Global Maximum

    Number of buffers that can be on the reordering queues of all connections in all virtual routers

    Default Per-VR Maximum

    Default maximum number of buffers for all connections in a single virtual router

    Default Connection Maximum

    Default maximum number of buffers for each connection in each virtual router

    This VR Maximum

    Maximum number of outstanding resequencing buffers in the current virtual router

    This VR Connection Maximum

    Maximum number of outstanding resequencing buffers on any one connection in this virtual router

    TCP Resequence Buffer Management State

    Global buffers in use

    Total number of outstanding resequencing buffers in the router:

    • High Water—Largest number of outstanding resequencing buffers that the router has experienced since the last reset

    VR Buffers in use

    Number of outstanding resequencing buffers in the current virtual router:

    • High Water—Largest number of outstanding resequencing buffers for the current virtual router since the last reset

    Buffers Discarded Because Global Limit Exceeded

    Number of resequencing buffers discarded because the global limit was reached

    Buffers Discarded Because VR Limit Exceeded

    Number of resequencing buffers that have been discarded in this virtual router because the virtual router buffer limit was reached

    Published: 2014-08-13