SecureStack C2 License Messages in Logging Buffer and Syslog

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Article ID: 5895 

Products
SecureStack C2
C2L3-LIC 

Symptoms
License messages in logging buffer and syslog
'set license'
'set logging'
'show logging buffer'
"UNKN[]: usmdb_keying.c() %% License Re-evaluate."
"UNKN[]: usmdb_keying.c() %% License DB task: update from unit time"
"UNKN[]: usmdb_keying.c() %% License DB check" 

Cause
When a C2L3-LIC Advanced Router license has been configured (5828), "License" messages will appear in the output of a 'show logging buffer' command if both the "System" application and default severity have been set to "debug" level 8 ('set logging application System level 8', 'set logging default severity 8'). 

This is demonstrated below. 

 C2(rw)->router
C2(rw)->router>enable
C2(rw)->router#config
Enter configuration commands:
C2(rw)->router(Config)#license advanced abcdefg123456789
C2(rw)->router(Config)#exit
C2(rw)->router#show license
license advanced abcdefg123456789
C2(rw)->router#exit
C2(rw)->router>exit
C2(rw)->show logging buffer
C2(rw)->set logging application System level 8
C2(rw)->set logging default severity 8
C2(rw)->show logging buffer
<167> MAY 16 16:03:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 884 %%
License DB task: update from unit 1 time WED MAY 16 16:03:27 2007
<167> MAY 16 16:04:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 885 %%
License DB task: update from unit 1 time WED MAY 16 16:04:27 2007
<167> MAY 16 16:04:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(2138) 886 %%
License DB check
<167> MAY 16 16:05:27 172.26.6.3-1 UNKN[184406360]: usmdb_keying.c(3107) 887 %%
License Re-evaluate.
<167> MAY 16 16:05:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 888 %%
License DB task: update from unit 1 time WED MAY 16 16:05:27 2007
<167> MAY 16 16:06:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 889 %%
License DB task: update from unit 1 time WED MAY 16 16:06:27 2007
<167> MAY 16 16:07:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 890 %%
License DB task: update from unit 1 time WED MAY 16 16:07:27 2007
<167> MAY 16 16:07:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(2138) 891 %%
License DB check
<167> MAY 16 16:08:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 892 %%
License DB task: update from unit 1 time WED MAY 16 16:08:27 2007
<167> MAY 16 16:09:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 895 %%
License DB task: update from unit 1 time WED MAY 16 16:09:27 2007
<167> MAY 16 16:10:27 172.26.6.3-1 UNKN[184406360]: usmdb_keying.c(3107) 897 %%
License Re-evaluate.
<167> MAY 16 16:10:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 898 %%
License DB task: update from unit 1 time WED MAY 16 16:10:27 2007
<167> MAY 16 16:10:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(2138) 899 %%
License DB check
<167>MAY 16 16:11:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 900 %%
License DB task: update from unit 1 time WED MAY 16 16:11:27 2007
<167>MAY 16 16:12:27 172.26.6.3-1 UNKN[184472624]: usmdb_keying.c(1359) 901 %%
License DB task: update from unit 1 time WED MAY 16 16:12:27 2007

C2(rw)->clear logging application System
C2(rw)->clear logging default severity
C2(rw)->

The frequency of each message is...
  • every 5 minutes, "License Re-evaluate.";
  • every 1 minute, "License DB task: update from unit...";
  • every 3 minutes, "License DB check".
Further, if a syslog server has been configured to receive any generated "debug" level 8 messaging ('set logging server 1 ip-addr <IP_address> severity 8 state enable'), it will also receive these "License" messages. 

Solution
FAD (Functions as Designed). 

If you do not want to see these messages, set either the "System" application or default severity no higher than "informational" level 7.
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