code: @Override
      public UpdateVirtualInterfaceAttributesResult updateVirtualInterfaceAttributes(UpdateVirtualInterfaceAttributesRequest request) {
          request = beforeClientExecution(request);
          return executeUpdateVirtualInterfaceAttributes(request);
      }
docs: <p>
  Updates the specified attributes of the specified virtual private interface.
  </p>
  <p>
  Setting the MTU of a virtual interface to 9001 (jumbo frames) can cause an update to the underlying physical
  connection if it wasn't updated to support jumbo frames. Updating the connection disrupts network connectivity
  for all virtual interfaces associated with the connection for up to 30 seconds. To check whether your connection
  supports jumbo frames, call <a>DescribeConnections</a>. To check whether your virtual interface supports jumbo
  frames, call <a>DescribeVirtualInterfaces</a>.
  </p>
  
  @param updateVirtualInterfaceAttributesRequest
  @return Result of the UpdateVirtualInterfaceAttributes operation returned by the service.
  @throws DirectConnectServerException
  A server-side error occurred.
  @throws DirectConnectClientException
  One or more parameters are not valid.
  @sample AmazonDirectConnect.UpdateVirtualInterfaceAttributes
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/directconnect-2012-10-25/UpdateVirtualInterfaceAttributes"
  target="_top">AWS API Documentation</a>