RP/0/RP0/CPU0:R4#show logging start Sep 16 23:25:46
Wed Sep 16 23:30:25.980 UTC
Time Zone UTC, DST disabled
Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns)
    Console logging: Disabled
    Monitor logging: level debugging, 0 messages logged
    Trap logging: level informational, 0 messages logged
    Buffer logging: level debugging, 100 messages logged

Log Buffer (2097152 bytes):

RP/0/RP0/CPU0:Sep 16 23:25:46.880 UTC: logger[67853]: %OS-SYSLOG-6-LOG_INFO : informational STEP1-BEGIN 
RP/0/RP0/CPU0:Sep 16 23:25:47.296 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6366]: Received disconnect from 10.100.3.1 port 61620:11: disconnected by user 
RP/0/RP0/CPU0:Sep 16 23:25:47.296 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6366]: Disconnected from user cisco 10.100.3.1 port 61620 
RP/0/RP0/CPU0:Sep 16 23:26:59.246 UTC: isis[1003]: %ROUTING-ISIS-4-LSP_MTU_MISMATCH : ISIS (1): The Level-2 LSP MTU on R1 (256) does not match ours (1492) 
RP/0/RP0/CPU0:Sep 16 23:28:47.044 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6643]: Accepted authentication/pam for cisco from 10.100.3.1 port 61649 ssh2 
RP/0/RP0/CPU0:Sep 16 23:28:49.566 UTC: logger[68138]: %OS-SYSLOG-6-LOG_INFO : informational STEP1-CLEAR: clear isis statistics 
RP/0/RP0/CPU0:Sep 16 23:28:50.363 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6648]: Received disconnect from 10.100.3.1 port 61649:11: disconnected by user 
RP/0/RP0/CPU0:Sep 16 23:28:50.363 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6648]: Disconnected from user cisco 10.100.3.1 port 61649 
RP/0/RP0/CPU0:Sep 16 23:30:17.254 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6810]: Accepted authentication/pam for cisco from 10.100.3.1 port 61678 ssh2 
RP/0/RP0/CPU0:Sep 16 23:30:23.074 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6815]: Received disconnect from 10.100.3.1 port 61678:11: disconnected by user 
RP/0/RP0/CPU0:Sep 16 23:30:23.074 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6815]: Disconnected from user cisco 10.100.3.1 port 61678 
RP/0/RP0/CPU0:Sep 16 23:30:24.054 UTC: ssh_syslog_proxy[1188]: %SECURITY-SSHD_SYSLOG_PRX-6-INFO_GENERAL : sshd[6922]: Accepted authentication/pam for cisco from 10.100.3.1 port 61679 ssh2