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• The advantage here is that opConfig doesn't have to interact with the node's command processor in a command-response-prompt-command-response... cycle; As such it's more robust.
• The disadvantage is that a new SSH connection must be opened for every single command, which is a relatively costly operation in terms of processing.
  Furthermore this cannot work with Telnet (which is interactive by design).

Dealing with devices without or insufficient command-line interface

opConfig version 3.1.1 has introduced a new plugin mechanism for collecting configuration data, which can help with devices whose command-line interface is found lacking for any reason; Please consult this separate document for information about how Plugins in opConfig work.

How long should revisions (and their captured command output) be kept

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Please note that command filters are possible for both one-shot commands and commands with change-detect enabled,  and behave the same for both.

In opConfig 3.1.1, support for post-processing plugins was added which provides facilities for more flexible filtering (e.g. whole blocks of data may be excluded programatically). The Plugins in opConfig page describes how to make use of this new functionality.

Raising Events when changes are detected

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