ETH-TRUNK LOAD-BALANCE S5720-LI

chenhui · Created Jul 7, 2019 02:23:31

@l2vc Hi,
please check the hash algorithm, based on information you provided, all the traffic had been hashed to the same link, which caused the output bandwidth usage reaches 100%.
you can try to modify the load balance mode to enhanced profile, and add more parameters in the enhanced profile to adjust the traffic hash.
to adjust the load balance mode, please refer to http://support.huawei.com/hedex/hdx.do?docid=EDOC1000177841&id=load-balance&text=load-balance&lang=en

chenhui · Created Jul 7, 2019 02:23:31

@l2vc Hi,
please check the hash algorithm, based on information you provided, all the traffic had been hashed to the same link, which caused the output bandwidth usage reaches 100%.
you can try to modify the load balance mode to enhanced profile, and add more parameters in the enhanced profile to adjust the traffic hash.
to adjust the load balance mode, please refer to http://support.huawei.com/hedex/hdx.do?docid=EDOC1000177841&id=load-balance&text=load-balance&lang=en

WheatGrass · Created Jul 8, 2019 03:40:38

The switch supports only Per-Flow hash. You are advised to adjust hash factors by referring to the guide. If an enhanced profile is configured to adjust hash factors, only one member port can be used, indicating that the traffic characteristics are simple. You need to capture packets.

tessaro · Created Jul 8, 2019 18:45:06

Try this:

system-view
The system view is displayed.

Run interface eth-trunk trunk-id
The Eth-Trunk interface view is displayed.

Run load-balance { dst-ip | dst-mac | src-ip | src-mac | src-dst-ip | src-dst-mac }
A load balancing mode of the Eth-Trunk is set.

By default, the load balancing mode is src-dst-ip.

Other load balancing modes are as follows:

dst-ip: based on destination IP addresses
dst-mac: based on destination MAC addresses
src-ip: based on source IP addresses
src-mac: based on source MAC addresses
src-dst-ip: based on the Exclusive-Or result of source and destination IP addresses
src-dst-mac: based on the Exclusive-Or result of source and destination MAC addresses

Mohamed_Mostafa · Created Jul 9, 2019 05:46:08

IF the Traffic is unevenly load balanced among Eth-Trunk member interfaces due to the incorrect load balancing mode.

Please do the following :
- Run the display eth-trunk command to check whether the load balancing mode of the Eth-Trunk meets networking requirements. For example, source or destination IP address-based load balancing is not recommended in Layer 2 networking.

- Run the load-balance command to set an appropriate load balancing mode.

You can also load the latest patch If you don't load it :
https://support.huawei.com/enterprise/en/switches/s5700-pid-6691579/software/250547948

l2vc · Created Jul 9, 2019 21:50:19

I tried every parameter, dst-ip, dst-mac, src-ip, src-mac, src-dst-ip and src-dst-mac, but the only thing that change is the Eth-Trunk port where the traffic is passing.

There's no load balance enhanced profile in this version, should i update it with a patch?

chenhui · Created Jul 10, 2019 06:13:17

Posted by l2vc at 2019-07-09 21:50 I tried every parameter, dst-ip, dst-mac, src-ip, src-mac, src-dst-ip and src-dst-mac, but the only ...

Hi,
it seems that the S5720-LI doesn't support load-balance-profile, please check this https://support.huawei.com/hedex/hdx.do?docid=EDOC1000177841&id=load-balance-profile&text=load-balance-profile&lang=en

we have to load balance the traffic in other way. which type of the traffic between the two switches? Are the traffic layer 2 traffic, layer 3 traffic or other types?

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ETH-TRUNK LOAD-BALANCE S5720-LI

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