The maximum number of log hosts that can receive logs sent by S series switches

20

The S series switches (except the S1700) can be configured to send logs to a maximum of eight log hosts (IPv4 and IPv6 log hosts), thus achieving mutual backup among the log hosts.

Other related questions:
Can I specify the port of the log host for receiving logs on S series switches
On an S series switch (except the S1700) that runs V200R008 or a later version, you can specify the TCP/UDP port number of the log host for receiving logs. The configuration command is info-center loghost ip-address port port-id. By default, the UDP port number is 514 and TCP port number is 6514.

How to configure a CE switch to send logs to a server
You can configure the switch to export logs to the log server so that you can view them on the log server to monitor device running. For example, to export all logs with a level higher than "notification" to the log server 10.1.1.1, run:
<HUAWEI> system-view
[~HUAWEI] info-center loghost 10.1.1.1 channel loghost level notification
[*HUAWEI] commit

Does the log buffer of S series switches record all logs
The log buffer only records some logs. For S series switches (except the S1700), two factors determine the logs recorded by log buffer. - By default, the log buffer only records logs at levels lower than the warning level (level 4); therefore, logs at levels 0 to 4 are recorded in the log buffer, whereas logs at levels 5 to 7 are not recorded. You can run the info-center source { module-name | default } channel { channel-number | channel-name } log { state { off | on } | level severity } * command to configure the levels of logs that can be recorded in the log buffer. - The space of the log buffer is limited. If the number of logs in the log buffer reaches the maximum, new logs will replace the earliest logs in the log buffer. By default, the log buffer can hold a maximum of 512 logs. You can run the info-center logbuffer size size command to configure the maximum number as 1024.

Maximum number of ACLs supported by S series switches
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