if a port needs 2.x then set MODPY_VERSION=${MODPY_DEFAULT_VERSION_2}.
This commit doesn't change any versions currently used; it may be that
some ports have MODPY_DEFAULT_VERSION_2 but don't require it, those
should be cleaned up in the course of updating ports where possible.
Python module ports providing py3-* packages should still use
FLAVOR=python3 so that we don't have a mixture of dependencies some
using ${MODPY_FLAVOR} and others not.
ExaBGP is software which can inject routes with arbitrary next-hops into
your network (i.e. source IPv4/IPv6 routes using both IPv4 and IPv6 BGP
connections, either from a configuration file or third party applications),
inject flowspec routes, or pass received routes in textual form to a
third-party application.
Potential uses include:
- announce IPv4/IPv6 routes with arbitrary next-hops into your network
* injection of service IPs like AS112 announcement
* temporary route redirection (adding more specific routes with
different next-hop)
* injection of flow routes to handle DDOS
- source flow routes.
- track changes in the global routing table.
- add the received default route to an host.
- filter and/or modify routes using your own logic.
ExaBGP is for injecting or performing complex route mangling with BGP,
it is not intended to transform a server into a BGP router.
