From bb7cddcc88572bef325dcad9a00e5ad68f30b213 Mon Sep 17 00:00:00 2001 From: laf Date: Sat, 6 Aug 2016 20:26:49 +0100 Subject: [PATCH] Updated perf docs to include max repeaters --- doc/Support/Performance.md | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/doc/Support/Performance.md b/doc/Support/Performance.md index d2da7a24e3..9e076be11c 100644 --- a/doc/Support/Performance.md +++ b/doc/Support/Performance.md @@ -36,6 +36,17 @@ $config['poller_modules']['ospf'] = 0; You can disable modules globally then re-enable the module per device or the opposite way. For a list of modules please see [Poller modules](http://docs.librenms.org/Support/Poller%20Support/) +#### SNMP Max Repeaters + +We have support for SNMP Max repeaters which can be handy on devices where we poll a lot of ports or bgp sessions for instance and +where snmpwalk or snmpbulkwalk is used. This needs to be enabled on a per device basis under edit device -> snmp -> Max repeaters. + +It's advisable to test the time taken to snmpwalk IF-MIB or something similar to work out what the best value is. To do this run the following +but replace with varying numbers from 10 upto around 50. You will also need to set the correct snmp version, hostname and community string: + +`time snmpbulkwalk -v2c -cpublic HOSTNAME -Cr -M /opt/librenms/mibs -m IF-MIB` + +> NOTE: Do not go blindly setting this value as you can impact polling negatively. #### Optimise poller-wrapper