node_exporter: PR Review Request and Questions on NDP exporter development

[Umut Gerçek]

Hi,

2 months ago I submitted a PR that implements exporting neighbor state information. https://github.com/prometheus/node_exporter/issues/535 as talked on this issue. If any maintainer of node_exporter has time, it may be good feature for node_exporter. It's also totally ok to close the pr since no one said it's necessary future :(. To sum up it adds below metrics:

# HELP node_arp_states ARP states by device # TYPE node_arp_states gauge node_arp_states{device="eth0",state="stale"} 1 node_arp_states{device="eth0",state="failed"} 2

...

PR: https://github.com/prometheus/node_exporter/pull/3191

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I'm also willing to implement same type of information for ipv6, if community wants it.

Not sure how this would be valuable for node_exporter. I'm just trying to sharpen my networking skills and wanted to contribute back to node_exporter which I use everyday. Thanks for your time.

Have a nice day.
Umut