Thank you ! BUT I still have these questions, I don't know if I'm wrong:

1. In this doc (http://docs.frrouting.org/en/latest/snmp.html), I think SNMP related code in FRR is
    - snmp codes of each module, like zebra or bgpd, which is located in .../modules/zebra_snmp.so. And these codes is load while zebra or bgpd start up? These codes response for report snmp events in zebra or bgpd modules by protocol to agentX?
    - AgentX, which is used to receive these snmp events and call snmp traps

2. So I want to start zebra with zebra_snmp.so. But I got errors which tell me there is no zebra_snmp.so. So I check build process, then I have questions in the email above.

3. Is there some docs about how to build, package, install and use frr-snmp? As this(http://docs.frrouting.org/en/latest/snmp.html) is not very clear.
    - http://docs.frrouting.org/en/latest/snmp.html tell me SNMP support compile is just use `--enable-snmp`. But as I said above, there is zebra_snmp.so in compile log, but no zebra_snmp.so in packages I installed.
    - http://docs.frrouting.org/en/latest/snmp.html tell me SNMP support could be started by `--module <module:snmp>`, but when I start, report error log that 'there is no zebra_snmp.so in .../modules/'

4. So could someone tell me clear steps on:
    - How to installed *additionally* to the "frr" package.
    - How to start SNMP support in system.

Thank you~

----
Simon Jones


David Lamparter <equinox@diac24.net> 于2019年8月1日周四 下午3:36写道：
SNMP support is in a separate debian package called "frr-snmp".  It is
installed *additionally* to the "frr" package.

-David


On Thu, Aug 01, 2019 at 03:31:11PM +0800, Simon Jones wrote:
> Hi all,
>
> I'm working on FRR, and I want bgpd and zebra to support snmp like this (
> http://docs.frrouting.org/en/latest/snmp.html).
> As I want to handle peer down/up events.
>
> So I use this script to build :
> .ONESHELL:
> SHELL = /bin/bash
> .SHELLFLAGS += -e
>
> MAIN_TARGET = $(FRR)
> DERIVED_TARGET = $(FRR_PYTHONTOOLS) $(FRR_DBG)
>
> $(addprefix $(DEST)/, $(MAIN_TARGET)): $(DEST)/% :
>     # Build the package
>     pushd ./frr
>     tools/tarsource.sh -V -e '-sonic'
>     dpkg-buildpackage -rfakeroot -b -us -uc -Ppkg.frr.nortrlib
> -j$(SONIC_CONFIG_MAKE_JOBS)
>     popd
>     mv $(DERIVED_TARGET) $* $(DEST)/
>
> $(addprefix $(DEST)/, $(DERIVED_TARGET)): $(DEST)/% : $(DEST)/$(MAIN_TARGET)
>
>
> In build log, I found there are zebra_snmp.so, and I found in this folder
>
> > $ find -name zebra_snmp.so
> > ./frr/zebra/.libs/zebra_snmp.so
> > ./frr/debian/frr-snmp/usr/lib/x86_64-linux-gnu/frr/modules/zebra_snmp.so
> > ./frr/debian/tmp/usr/lib/x86_64-linux-gnu/frr/modules/zebra_snmp.so
>
>
> But at last, in deb package, this is no zebra_snmp.so and other snmp.so in
> modules folder, and actually there is no modules folder.
>
> So how to build with these modules and snmp support like that URL?
>
> Will this be work?
> 1. Add '-Ppkg.frr.snmp' in 'dpkg-buildpackage' step? Or
> 2. Use some old version?
>
> Thank you~
>
> ----
> Simon Jones

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