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Pim van Pelt
2025-05-04 21:54:16 +02:00
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content/articles/2023-04-09-vpp-stats.md
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@ -14,7 +14,7 @@ performance and versatility. For those of us who have used Cisco IOS/XR devices,
_ASR_ (aggregation service router), VPP will look and feel quite familiar as many of the approaches
are shared between the two.
I've been working on the Linux Control Plane [[ref](https://github.com/pimvanpelt/lcpng)], which you
I've been working on the Linux Control Plane [[ref](https://git.ipng.ch/ipng/lcpng)], which you
can read all about in my series on VPP back in 2021:
[![DENOG14](/assets/vpp-stats/denog14-thumbnail.png){: style="width:300px; float: right; margin-left: 1em;"}](https://video.ipng.ch/w/erc9sAofrSZ22qjPwmv6H4)
@ -70,7 +70,7 @@ answered by a Response PDU.
Using parts of a Python Agentx library written by GitHub user hosthvo
[[ref](https://github.com/hosthvo/pyagentx)], I tried my hands at writing one of these AgentX's.
The resulting source code is on [[GitHub](https://github.com/pimvanpelt/vpp-snmp-agent)]. That's the
The resulting source code is on [[GitHub](https://git.ipng.ch/ipng/vpp-snmp-agent)]. That's the
one that's running in production ever since I started running VPP routers at IPng Networks AS8298.
After the _AgentX_ exposes the dataplane interfaces and their statistics into _SNMP_, an open source
monitoring tool such as LibreNMS [[ref](https://librenms.org/)] can discover the routers and draw
@ -126,7 +126,7 @@ for any interface created in the dataplane.
I wish I were good at Go, but I never really took to the language. I'm pretty good at Python, but
sorting through the stats segment isn't super quick as I've already noticed in the Python3 based
[[VPP SNMP Agent](https://github.com/pimvanpelt/vpp-snmp-agent)]. I'm probably the world's least
[[VPP SNMP Agent](https://git.ipng.ch/ipng/vpp-snmp-agent)]. I'm probably the world's least
terrible C programmer, so maybe I can take a look at the VPP Stats Client and make sense of it. Luckily,
there's an example already in `src/vpp/app/vpp_get_stats.c` and it reveals the following pattern: