Date: Mon, 14 Jan 2019 15:35:42 +1100
From: Daniel Rolfe <daniel.rolfe.au@gmail.com>
To: Observium Network Observation System <observium@observium.org>
Subject: [Observium] Junos BGP info from Logical System (LSYS)
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        <CAA+VvYRiyYCKFv--qQ8Z_CcPGSy1bv=iiM2=hXn9RHbEERq+ow@mail.gmail.com>
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Hi,

I've recently added some SRX5800 firewalls that have all their BGP config
within LSYS

Observium  doesn't seem to be able to pick up the peering info which I
would like to monitor

Junos Logical Systems are just that- another system. Any interfaces, peers, etc that re inside the LS do not appear in global, and vice-versa.

Treat the LS like an entirely different router and snmp poll it, using: name of LS, name of routing instance (default if none) @ community name:

LSNAME/default@public

This of course requires SNMP to be configured properly within the LS, which is something like this in global:

set snmp community public logical-system LSNAME routing-instance default