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Documentation: SNMP: update to recent changes

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Remove snmp_init(), it is called by lwip_init().

Remove snmp_inc_sysuptime() and snmp_add_sysuptime(), they do not exist
anymore, MIB2 is now using sys_now().
This commit is contained in:
Sylvain Rochet 2015-10-04 11:02:17 +02:00
parent f80d0dab08
commit 495fc61a34
1 changed files with 0 additions and 16 deletions
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16
doc/snmp_agent.txt
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@ -91,22 +91,6 @@ one or more trap destinations using these calls:
snmp_trap_dst_enable(); snmp_trap_dst_enable();
snmp_trap_dst_ip_set(); snmp_trap_dst_ip_set();
In the lwIP initialisation sequence call snmp_init() just after
the call to udp_init().
Exactly every 10 msec the SNMP uptime timestamp must be updated with
snmp_inc_sysuptime(). You should call this from a timer interrupt
or a timer signal handler depending on your runtime environment.
An alternative way to update the SNMP uptime timestamp is to do a call like
snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but call to
a lower frequency). Another one is to not call snmp_inc_sysuptime() or
snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
when it's queried (any function which need "sysuptime" have to call
snmp_get_sysuptime).
3 Private MIBs 3 Private MIBs
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