Central and DCE on same SNMP LAN

DCIM_Support · ‎2020-07-04

Hi,

I have got Central at the moment. I have installed DCE on the same LAN.

If I "discover" from DCE, am I likely to break Central speaking with the current nodes?

Thanks

DCIM_Support · ‎2020-07-04

Hi Seun,

There is no specific issue with any 2 monitoring systems monitoring the same SNMP device. There are always chances that too much polling could cause conflicts but as long as the systems are polling at a reasonable rate and the devices are not constantly going into and out of alert, there should be no issue.

Standard polling rates are about once every 5 minutes and should cause no issue. If you do see devices lose comm more often than they do now, just increase timeouts and retries for those devices.

If they were to be sharing the same private or secondary LAN, you'd want to turn off DHCP on one of the systems so that doesn't conflict. I would suggest turning it off on the newly deployed system (before connecting it to that LAN) so devices don't all get new IPs and have to be rediscovered on the old Central server.

Steve

See Answer In Context

DCIM_Support · ‎2020-07-04

Any idea Steven Marchetti?

DCIM_Support · ‎2020-07-04

Hi Seun,

There is no specific issue with any 2 monitoring systems monitoring the same SNMP device. There are always chances that too much polling could cause conflicts but as long as the systems are polling at a reasonable rate and the devices are not constantly going into and out of alert, there should be no issue.

Standard polling rates are about once every 5 minutes and should cause no issue. If you do see devices lose comm more often than they do now, just increase timeouts and retries for those devices.

If they were to be sharing the same private or secondary LAN, you'd want to turn off DHCP on one of the systems so that doesn't conflict. I would suggest turning it off on the newly deployed system (before connecting it to that LAN) so devices don't all get new IPs and have to be rediscovered on the old Central server.

Steve

DCIM_Support · ‎2020-07-04

Thanks Steve. Will give that a shot.

DCIM_Support · ‎2020-07-04

Just an FYI, If you were doing (http/https) NetBotz , I don't recommend monitoring them with more than 1 DCE server...definitely not more than 2 especially if using surveillance.

DCIM_Support · ‎2020-07-04

Thanks Steve.

Slightly unrelated follow-up question. Can I backup/export my historical data (and probably config/threshold settings) and import these into my new DCE appliance?

DCIM_Support · ‎2020-07-04

Hi Seun,

No. Because of things like changes in design of the database in different versions, you can not import a backup of DCE that is not of the same version to which you are importing. That is to say if you have DCE 7.5, you can only import a backup from another 7.5 system. If you back up a 6.0 server, you can only import that into another 6.0 serer. The server won't even see the backup from another version.

Steve

DCIM_Support · ‎2020-07-04

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