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LEON_LI_38034's avatar
LEON_LI_38034
Icon for Nimbostratus rankNimbostratus
Jan 23, 2015

About rate shapping tmsh show class 's question

Hi All

In the following output of “tail”、 “random” 、 “total” and " 4sec average bytes/sec" respectively is what mean?

root@(f5-v11)(cfg-sync Standalone)(Active)(/Common)(tmos.net.rate-shaping) show class Rateshape_2Mbps

Net::Rate Class: Rateshape_2Mbps

Settings                   Base  Ceiling  Burst
limits                     2.0M     2.0M      0
Statistics            

Dropped by                  Packets    Bytes
**tail**                      19.3K    36.7M
**random**                    46.9K    68.1M
**total**                     66.2K   104.8M
**4sec average bytes/sec**      148

Many Thanks!!!

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  • Kai_Wilke's avatar
    Kai_Wilke
    Icon for MVP rankMVP
    Dec 17, 2015

    Hi Leon,

     

    the counter are reflecting the drop policy actions.

     

    Specifying a drop policy

     

    The BIG-IP system drops packets whenever the specified rate limit is exceeded. A drop policy specifies the way that you want the system to drop packets. The default value is tail.

     

    Possible values are:

     

    • fred: Specifies that the system drops packets according to the type of traffic in the flow.
    • red: Specifies that the system randomly drops packets.
    • tail: Specifies that the system drops the end of the traffic stream.

    You can create additional drop policies using the bigpipe utility or the Traffic Management shell (tmsh).

     

    Information found at: https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_1/tmos_rateshaping.html

     

    Cheers, Kai