Network Administration Visualized 3.11.4

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 Network Administration Visualized release notes
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Please report bugs at https://bugs.launchpad.net/nav/+filebug . To browse
existing bug reports, go to https://bugs.launchpad.net/nav .

If you are upgrading from versions of NAV older than 3.7, please refer to the
release notes of the in-between versions before reading any further.

Known problems
==============

The recommended SNMP library for use with ipdevpoll is `pynetsnmp`. If you
choose to go with the original TwistedSNMP, the latest version (0.3.13)
contains a bug that manifests in table retrieval operations. Timeouts and
retries aren't handled properly, and this may cause slow or otherwise busy
devices to be bombarded with requests from NAV. The `contrib/patches`
directory contains a patch for TwistedSNMP that solves this problem. The
patch has been submitted upstream, but not yet accepted into a new release.

NAV 3.11
========

To see the overview of scheduled features and reported bugs on the 3.11 series
of NAV, please go to https://launchpad.net/nav/3.11 .

Dependency changes
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- `JavaSNMP` is no longer a dependency and can be removed. There is also
  therefore no longer any need to export a `CLASS_PATH` variable before
  building NAV from source.

Topology source data
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The getBoksMacs Java program has been replaced by a set of ipdevpoll plugins,
configured to run under the `topo` job in 15 minute intervals. This job will
collect switch forwarding tables (CAM), STP blocking status, CDP (Cisco
Discovery Protocol) neighbor information and also LLDP (Link Layer Discovery
Protocol) neighbor information.

The navtopology program will now prefer LLDP source information over CDP and
CDP source information over CAM source information when building NAV's
topology.

Unrecognized neighbors from CDP or LLDP are _not_ stored yet by NAV 3.11.0,
but this will be reimplemented in the 3.11 series.