Discussion:
Issues during failover
Avinash Kashyap
2017-06-01 07:24:37 UTC
Permalink
Hi All,



We are using snmptrapd to convert message from trap to ASCII format. But we
are facing issues during failovers. Scenario is explained below.



[image: Inline image 1]

We have two cisco servers primary and secondary sending traps through
snmpv3 format to our snmptrapd server on port 162. Traps from primary is
being received without any issues. Whenever failover happens from primary
to secondary, We receive traps from secondary also without any issues.



However when primary comes back, then we receive traps only in tcp level
and snmptrapd doesn’t handle it. Once we restart snmptrapd, we will start
receiving once again. Hence we wanted to know do we have any solution to it?



Note:- We have other servers which are connected to snmptrapd server and
sends message in SNMPV2 format and works completely fine during switchovers.



Thanks & Regards

Avinash M L
Ajit Ambekar
2017-06-02 14:26:18 UTC
Permalink
Hello,
Although I never worked on such scenario but just out of curiosity,
Are both servers in active-active mode or active-passive mode ?
Post by Avinash Kashyap
Hi All,
We are using snmptrapd to convert message from trap to ASCII format. But
we are facing issues during failovers. Scenario is explained below.
[image: Inline image 1]
We have two cisco servers primary and secondary sending traps through
snmpv3 format to our snmptrapd server on port 162. Traps from primary is
being received without any issues. Whenever failover happens from primary
to secondary, We receive traps from secondary also without any issues.
However when primary comes back, then we receive traps only in tcp level
and snmptrapd doesn’t handle it. Once we restart snmptrapd, we will start
receiving once again. Hence we wanted to know do we have any solution to it?
Note:- We have other servers which are connected to snmptrapd server and
sends message in SNMPV2 format and works completely fine during switchovers.
Thanks & Regards
Avinash M L
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Avinash Kashyap
2017-06-05 07:09:02 UTC
Permalink
Hi Ajit,

Thanks for your response. When the standby is running(sending traps), the
primary is still reachable. But the application on primary is not running
at that time.

Thanks,
Avinash
Post by Ajit Ambekar
Hello,
Although I never worked on such scenario but just out of curiosity,
Are both servers in active-active mode or active-passive mode ?
On Thu, 1 Jun 2017 at 1:09 PM, Avinash Kashyap <
Post by Avinash Kashyap
Hi All,
We are using snmptrapd to convert message from trap to ASCII format. But
we are facing issues during failovers. Scenario is explained below.
[image: Inline image 1]
We have two cisco servers primary and secondary sending traps through
snmpv3 format to our snmptrapd server on port 162. Traps from primary is
being received without any issues. Whenever failover happens from primary
to secondary, We receive traps from secondary also without any issues.
However when primary comes back, then we receive traps only in tcp level
and snmptrapd doesn’t handle it. Once we restart snmptrapd, we will start
receiving once again. Hence we wanted to know do we have any solution to it?
Note:- We have other servers which are connected to snmptrapd server and
sends message in SNMPV2 format and works completely fine during switchovers.
Thanks & Regards
Avinash M L
------------------------------------------------------------
------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot______
_________________________________________
Net-snmp-users mailing list
https://lists.sourceforge.net/lists/listinfo/net-snmp-users
--
Ambekar Ajit Shivaji
Mumbai.
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