Forum Discussion
Ok Signal After SNMP Trap Alert
I am helping develop a system that will consume SNMP trap information from several devices including an F5 LTM. As I'm new to SNMP, I have what might be a noob question for you all. In the documentation for other devices, a trap that informs of an error (such as a fan not working) will either have a stated repeat interval or have a corresponding ok message. What practice does the F5 follow? Is there any other documentation besides http://www.juniper.net/techpubs/en_US/junos11.1/topics/reference/general/chassistraps-nm-mib.html that I should be looking at?
7 Replies
- vaibhav
Cirrostratus
This might help you to understand how it works....
http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_1/tmos_snmp.html?sr=22744042 - nitass
Employee
you may review list of snmp trap bigip sends using mib browser, e.g. ireasoning. it is under bigipnotifications (.1.3.6.1.4.1.3375.2.4.0).
mib file is available at about tab in webui. - Jason_40887
Nimbostratus
Looking over both of those I am still a bit confused.
For example with a Juniper switch (http://www.juniper.net/techpubs/en_US/junos11.1/topics/reference/general/chassistraps-nm-mib.html)
in the event of a fan failure it woudl send the trap jnxFanFailure 1.3.6.1.4.1.2636.4.1 this is repeated every hour until the issue is resolved at this point a jnxFanOK 1.3.6.1.4.1.2636.4.2 is sent.
With the f5 is there anyway to know that the issue is resolved. Looking at the MIB there are 3 different fan failure traps but none defined that state that there is no longer an issue http://ipmsupport.solarwinds.com/mibs/F5-BIGIP-COMMON-MIB/tree.aspx
I also have not been able to find any documentation on a repeat interval that would let you know the issue is resolved when it is no longer seen repeating. - nitass
Employee
With the f5 is there anyway to know that the issue is resolved. Looking at the MIB there are 3 different fan failure traps but none defined that state that there is no longer an issue http://ipmsupport.solarwinds.com/mibs/F5-BIGIP-COMMON-MIB/tree.aspx
I also have not been able to find any documentation on a repeat interval that would let you know the issue is resolved when it is no longer seen repeating. as i understand, not every trap has clear trap message. interval depends on how log is generated e.g. by who (daemon or something else). - Jason_40887
Nimbostratus
I found a doc that does have clear codes in it. http://www.google.com/url?sa=t&rct=j&q=f5%20dnsnameupdateclear&source=web&cd=1&ved=0CC8QFjAA&url=http%3A%2F%2Fsupport.f5.com%2Fcontent%2Fkb%2Fen-us%2Fproducts%2Farx%2Fmanuals%2Fproduct%2Farx_snmp_reference_6_0_0%2F_jcr_content%2FpdfAttach%2Fdownload%2Ffile.res%2FsnmpRef.pdf&ei=Og0IUOT7NuTW2AXOm_HHBA&usg=AFQjCNHottWgJus0mtvk2gDiWfm-CSPDTQ
It is odd that most docs do not.
Thanks - nitass
Employee
i thought you are using bigip but it is arx, isn't it?? - nitass
Employee
sorry it is duplicated...
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