:doc:`EC2 <../../ec2>` / Client / modify_traffic_mirror_session

*****************************
modify_traffic_mirror_session
*****************************



.. py:method:: EC2.Client.modify_traffic_mirror_session(**kwargs)

  

  Modifies a Traffic Mirror session.

  

  See also: `AWS API Documentation <https://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/ModifyTrafficMirrorSession>`_  


  **Request Syntax**
  ::

    response = client.modify_traffic_mirror_session(
        TrafficMirrorSessionId='string',
        TrafficMirrorTargetId='string',
        TrafficMirrorFilterId='string',
        PacketLength=123,
        SessionNumber=123,
        VirtualNetworkId=123,
        Description='string',
        RemoveFields=[
            'packet-length'|'description'|'virtual-network-id',
        ],
        DryRun=True|False
    )
    
  :type TrafficMirrorSessionId: string
  :param TrafficMirrorSessionId: **[REQUIRED]** 

    The ID of the Traffic Mirror session.

    

  
  :type TrafficMirrorTargetId: string
  :param TrafficMirrorTargetId: 

    The Traffic Mirror target. The target must be in the same VPC as the source, or have a VPC peering connection with the source.

    

  
  :type TrafficMirrorFilterId: string
  :param TrafficMirrorFilterId: 

    The ID of the Traffic Mirror filter.

    

  
  :type PacketLength: integer
  :param PacketLength: 

    The number of bytes in each packet to mirror. These are bytes after the VXLAN header. To mirror a subset, set this to the length (in bytes) to mirror. For example, if you set this value to 100, then the first 100 bytes that meet the filter criteria are copied to the target. Do not specify this parameter when you want to mirror the entire packet.

     

    For sessions with Network Load Balancer (NLB) traffic mirror targets, the default ``PacketLength`` will be set to 8500. Valid values are 1-8500. Setting a ``PacketLength`` greater than 8500 will result in an error response.

    

  
  :type SessionNumber: integer
  :param SessionNumber: 

    The session number determines the order in which sessions are evaluated when an interface is used by multiple sessions. The first session with a matching filter is the one that mirrors the packets.

     

    Valid values are 1-32766.

    

  
  :type VirtualNetworkId: integer
  :param VirtualNetworkId: 

    The virtual network ID of the Traffic Mirror session.

    

  
  :type Description: string
  :param Description: 

    The description to assign to the Traffic Mirror session.

    

  
  :type RemoveFields: list
  :param RemoveFields: 

    The properties that you want to remove from the Traffic Mirror session.

     

    When you remove a property from a Traffic Mirror session, the property is set to the default.

    

  
    - *(string) --* 

    

  :type DryRun: boolean
  :param DryRun: 

    Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is ``DryRunOperation``. Otherwise, it is ``UnauthorizedOperation``.

    

  
  
  :rtype: dict
  :returns: 
    
    **Response Syntax**

    
    ::

      {
          'TrafficMirrorSession': {
              'TrafficMirrorSessionId': 'string',
              'TrafficMirrorTargetId': 'string',
              'TrafficMirrorFilterId': 'string',
              'NetworkInterfaceId': 'string',
              'OwnerId': 'string',
              'PacketLength': 123,
              'SessionNumber': 123,
              'VirtualNetworkId': 123,
              'Description': 'string',
              'Tags': [
                  {
                      'Key': 'string',
                      'Value': 'string'
                  },
              ]
          }
      }
      
    **Response Structure**

    

    - *(dict) --* 
      

      - **TrafficMirrorSession** *(dict) --* 

        Information about the Traffic Mirror session.

        
        

        - **TrafficMirrorSessionId** *(string) --* 

          The ID for the Traffic Mirror session.

          
        

        - **TrafficMirrorTargetId** *(string) --* 

          The ID of the Traffic Mirror target.

          
        

        - **TrafficMirrorFilterId** *(string) --* 

          The ID of the Traffic Mirror filter.

          
        

        - **NetworkInterfaceId** *(string) --* 

          The ID of the Traffic Mirror session's network interface.

          
        

        - **OwnerId** *(string) --* 

          The ID of the account that owns the Traffic Mirror session.

          
        

        - **PacketLength** *(integer) --* 

          The number of bytes in each packet to mirror. These are the bytes after the VXLAN header. To mirror a subset, set this to the length (in bytes) to mirror. For example, if you set this value to 100, then the first 100 bytes that meet the filter criteria are copied to the target. Do not specify this parameter when you want to mirror the entire packet

          
        

        - **SessionNumber** *(integer) --* 

          The session number determines the order in which sessions are evaluated when an interface is used by multiple sessions. The first session with a matching filter is the one that mirrors the packets.

           

          Valid values are 1-32766.

          
        

        - **VirtualNetworkId** *(integer) --* 

          The virtual network ID associated with the Traffic Mirror session.

          
        

        - **Description** *(string) --* 

          The description of the Traffic Mirror session.

          
        

        - **Tags** *(list) --* 

          The tags assigned to the Traffic Mirror session.

          
          

          - *(dict) --* 

            Describes a tag.

            
            

            - **Key** *(string) --* 

              The key of the tag.

               

              Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with ``aws:``.

              
            

            - **Value** *(string) --* 

              The value of the tag.

               

              Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.

              
        
      
    
  