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Subject:	RE: Unable to model Juniper edge router
Author:	Michael Rogers
Posted:	2020-11-02 14:35

Ambarish,

The first thing we can do with this modeler output is look for any explicit warning lines:

grep -i warn juniperModelFail.txt

2020-11-02 10:25:22,812 WARNING zen.ZenModeler: The plugin CTL.python.JuniperExpClusterMap returned no results.

2020-11-02 10:25:22,812 WARNING zen.ZenModeler: The plugin CTL.python.JuniperExpEnvMap returned no results.

2020-11-02 10:25:26,869 WARNING zen.ZenModeler: Ignoring IP address with 0.0.0.0 netmask: fec0::a:0:0:5/0

2020-11-02 10:25:26,876 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperBGPMap plugin

2020-11-02 10:25:26,876 WARNING zen.ZenModeler: Data= {'jnxBgpM2PeerTable': {}}

2020-11-02 10:25:26,877 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperIpSecNATMap plugin

2020-11-02 10:25:26,877 WARNING zen.ZenModeler: Data= {'jnxJsSrcNatStatsTable': {}}

2020-11-02 10:25:26,881 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperExpClusterSessionMap plugin for cluster sessions 2020-11-02 10:25:26,881 WARNING zen.ZenModeler: Data= {'jnxSPUClusterObjectsEntry': {}}

2020-11-02 10:25:26,882 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperExpIpSecVPNMap plugin for VPNs 2020-11-02 10:25:26,882 WARNING zen.ZenModeler: Data= {'jnxIpSecTunnelMonEntry': {}, 'jnxIkeTunnelMonEntry': {}}

2020-11-02 10:25:26,882 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperExpNATPMap plugin for NAT Pools

2020-11-02 10:25:26,882 WARNING zen.ZenModeler: Data= {'jnxJsNatPoolEntry': {}}

2020-11-02 10:25:26,883 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperExpNATRMap plugin for NAT Rules

2020-11-02 10:25:26,883 WARNING zen.ZenModeler: Data= {'jnxJsNatRuleEntry': {}}

2020-11-02 10:25:26,884 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperExpSPUMap plugin for SPUs

2020-11-02 10:25:26,888 WARNING zen.ZenModeler: Data= {'jnxJsSPUMonitoringObjectsEntry': {}, 'jnxOperatingEntry': {'4.1.2.0': {'jnxDescr': 'Middle Fan'}, '7.2.0.0': {'jnxDescr': 'FPC @ 1/*/*'}, '7.3.0.0': {'jnxDescr': 'FPC @ 2/*/*'}, '9.1.0.0': {'jnxDescr': 'Routing Engine 0'}, '9.2.0.0': {'jnxDescr': 'Routing Engine 1'}, '2.4.0.0': {'jnxDescr': 'PEM 3'}, '2.3.0.0': {'jnxDescr': 'PEM 2'}, '12.2.0.0': {'jnxDescr': 'CB 1'}, '2.1.0.0': {'jnxDescr': 'PEM 0'}, '4.1.3.0': {'jnxDescr': 'Rear Fan'}, '4.1.0.0': {'jnxDescr': 'Left Fan Tray'}, '1.1.0.0': {'jnxDescr': 'midplane'}, '2.2.0.0': {'jnxDescr': 'PEM 1'}, '12.1.0.0': {'jnxDescr': 'CB 0'}, '4.1.1.0': {'jnxDescr': 'Front Fan'}}}

2020-11-02 10:25:26,889 WARNING zen.ZenModeler: No SNMP response from sg1-edg-1a-r6-re1 for the JuniperExpZoneMap plugin for zones list 2020-11-02 10:25:26,889 WARNING zen.ZenModeler: Data= {'jnxJsPolicyEntry': {}}

2020-11-02 10:25:58,194 WARNING zen.publisher: Error sending metric: [Failure instance: Traceback: <type 'exceptions.ImportError'>: No module named pysamba.twisted.reactor​

Eight of those lines specify that there was "No SNMP response" from a modeler plugin.  You might start by confirming that you can poll the SNMP OID tables scanned by these plugins by performing an snmpwalk.  

Some other questions that might point us in the right direction:

1. Has this device ever modeled with these plugins before?  If yes, when did it stop working?
2. Are any other devices modeling successfully with these plugins?  If yes, what are the differences between those devices and this one?
3. What ZenPack provided these plugins?  If it is a community ZenPack, do you have a link to it so that its code can be reviewed?

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Michael J. Rogers
Senior Instructor - Zenoss
Austin TX
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Ambarish Kumar
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