diff options
| author | William Tu <u9012063@gmail.com> | 2021-02-18 07:24:49 -0800 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2021-03-01 19:37:57 +0100 |
| commit | f013e6f2d608719f190c7dadb6849bed07a9e6eb (patch) | |
| tree | 173bdb564c3197581b9b934947c621b08e655863 /vswitchd | |
| parent | 39b937f064347884614002c9bdac79382a144fca (diff) | |
| download | openvswitch-f013e6f2d608719f190c7dadb6849bed07a9e6eb.tar.gz | |
Documentation: Fix DPDK qos example.
Fix the example use case based on the decription.
EIR and CIR are measured in bytes/sec and considered 64-byte
IP packets size withtout 14-byte Ethernet header.
So fix the 1000pps example by: (64 - 14) * 1000 = 50,000
If the frame includes 4-byte FCS header, then it's
(64 - 14 - 4) * 1000 = 46,000
Fixes: e61bdffc2a98 ("netdev-dpdk: Add new DPDK RFC 4115 egress policer")
Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Diffstat (limited to 'vswitchd')
| -rw-r--r-- | vswitchd/vswitch.xml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml index a2ad84ede..4597a215d 100644 --- a/vswitchd/vswitch.xml +++ b/vswitchd/vswitch.xml @@ -4660,7 +4660,8 @@ ovs-vsctl add-port br0 p0 -- set Interface p0 type=patch options:peer=p1 \ packets per second the CIR would be set to to to 46000000. This value can be broken into '1,000,000 x 46'. Where 1,000,000 is the policing rate for the number of packets per second and 46 represents the size - of the packet data for a 64 byte ip packet. + of the packet data for a 64 bytes IP packet without 14 bytes Ethernet + and 4 bytes FCS header. </column> <column name="other_config" key="cbs" type='{"type": "integer"}'> The Committed Burst Size (CBS) is measured in bytes and represents a @@ -4681,7 +4682,8 @@ ovs-vsctl add-port br0 p0 -- set Interface p0 type=patch options:peer=p1 \ packets per second the EIR would be set to to to 46000000. This value can be broken into '1,000,000 x 46'. Where 1,000,000 is the policing rate for the number of packets per second and 46 represents the size - of the packet data for a 64 byte ip packet. + of the packet data for a 64 bytes IP packet without 14 bytes Ethernet + and 4 bytes FCS header. </column> <column name="other_config" key="ebs" type='{"type": "integer"}'> The Excess Burst Size (EBS) is measured in bytes and represents a |