Just to inform, I have tried again to enable SLA feature, with no luck. I have updated observium to the latest version, enabled SLA in config.php, made discovery and poller. There are no sla rrd under device (2801 serie router), and therefore no SLA tab. In the global configuration verified SLA:
[enable_sla] => 1
[sla_type_labels] => Array ( [echo] => ICMP ping [pathEcho] => Path ICMP ping [fileIO] => File I/O [script] => Script [udpEcho] => UDP ping [tcpConnect] => TCP connect [http] => HTTP [dns] => DNS [jitter] => Jitter [dlsw] => DLSW [dhcp] => DHCP [ftp] => FTP [voip] => VoIP [rtp] => RTP [lspGroup] => LSP group [icmpjitter] => ICMP jitter [lspPing] => LSP ping [lspTrace] => LSP trace [ethernetPing] => Ethernet ping [ethernetJitter] => Ethernet jitter [lspPingPseudowire] => LSP Pseudowire ping )
[poller_modules] => Array [cisco-sla] => 1
[discovery_modules] => Array [cisco-sla] => 1
-- iRoza