ELK 监控交换机日志（以华为交换机为例）

#指定发送消息基本，表示从0-7都发送
info-center source default channel 2 log level debugging
#指定从哪个接口发送
info-center loghost source Vlanif1
#指定远程 ELK 服务器ip
info-center loghost 192.168.1.137

vim /etc/rsyslog.conf
#启用udp 514端口监听。
$ModLoad imudp
$UDPServerRun 514

:fromhost-ip,isequal, "192.168.1.88"               /var/log/huawei/route.log
:fromhost-ip,isequal, "192.168.1.xx"               /var/log/huawei/xxxx.log

systemctl restart rsyslog

vim /etc/logstash/conf.d/testroute.conf 
input {
    syslog {
        type => "/var/log/huawei/route.log"
        port => 10515
    }
}
output {
    #stdout {
    #    codec => rubydebug
    #}
    elasticsearch {
        hosts => ["192.168.1.137:9200"]
        index => "test-route-%{+YYYY.MM}"
    }
}

vim /etc/rsyslog.conf
#### RULES ####
*.* @@192.168.1.137:10515

systemctl restart rsyslog

/usr/share/logstash/bin/logstash --path.settings /etc/logstash -f /etc/logstash/conf.d/testroute.conf &

[root@lanjing3 conf.d]# /usr/share/logstash/bin/logstash --path.settings /etc/logstash -f /etc/logstash/conf.d/testroute.conf 
Sending Logstash logs to /var/log/logstash which is now configured via log4j2.properties
[2019-01-25T09:35:53,202][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
[2019-01-25T09:35:53,282][INFO ][logstash.runner          ] Starting Logstash {"logstash.version"=>"6.5.2"}
[2019-01-25T09:36:03,249][INFO ][logstash.pipeline        ] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>1, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[2019-01-25T09:36:04,986][INFO ][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://192.168.1.137:9200/]}}
[2019-01-25T09:36:05,966][WARN ][logstash.outputs.elasticsearch] Restored connection to ES instance {:url=>"http://192.168.1.137:9200/"}
[2019-01-25T09:36:06,205][INFO ][logstash.outputs.elasticsearch] ES Output version determined {:es_version=>6}
[2019-01-25T09:36:06,227][WARN ][logstash.outputs.elasticsearch] Detected a 6.x and above cluster: the `type` event field won't be used to determine the document _type {:es_version=>6}
[2019-01-25T09:36:06,321][INFO ][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//192.168.1.137:9200"]}
[2019-01-25T09:36:06,408][INFO ][logstash.outputs.elasticsearch] Using mapping template from {:path=>nil}
[2019-01-25T09:36:06,474][INFO ][logstash.outputs.elasticsearch] Attempting to install template {:manage_template=>{"template"=>"logstash-*", "version"=>60001, "settings"=>{"index.refresh_interval"=>"5s"}, "mappings"=>{"_default_"=>{"dynamic_templates"=>[{"message_field"=>{"path_match"=>"message", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false}}}, {"string_fields"=>{"match"=>"*", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false, "fields"=>{"keyword"=>{"type"=>"keyword", "ignore_above"=>256}}}}}], "properties"=>{"@timestamp"=>{"type"=>"date"}, "@version"=>{"type"=>"keyword"}, "geoip"=>{"dynamic"=>true, "properties"=>{"ip"=>{"type"=>"ip"}, "location"=>{"type"=>"geo_point"}, "latitude"=>{"type"=>"half_float"}, "longitude"=>{"type"=>"half_float"}}}}}}}}
[2019-01-25T09:36:07,772][INFO ][logstash.pipeline        ] Pipeline started successfully {:pipeline_id=>"main", :thread=>"#<Thread:0x51bafc66 run>"}