<189>270437: 10.2.65.254: Jul 26 08:38:23.114 CDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/21, changed state to down
This is a syslog message from a product called Cisco Network Operating System by Cisco. The following fields were extracted from the message:
fieldExtractorName: cisco_os
messageType: management_message
ruleCategory: lineproto
ruleName: updown
senderHost: 10.2.65.254
sensitivity: normal
severityCode: 5
severityLabel: notice
sourceInfo: unknown
streamName: cisco_os
tags: ['cisco_os', 'management_message']