.. _example_protocols_bgp_peer-group_update-source:

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Update-Source
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Scenario to verify BGP **peer-group update-source** inheritance.
When ``update-source`` is configured on a peer-group, all members use the
specified interface as the source address for BGP sessions.

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Test iBGP - Session establishes without update-source using direct interface
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Description
===========

Test that without ``update-source`` on the peer-group, BGP uses the outgoing
interface IP as the source address. Both peers use their physical interface IPs,
so the session establishes normally.

Scenario
========

.. include:: update-source/testibgp-sessionestablisheswithoutupdate-sourceusingdirectinterface

.. raw:: html

  <hr>

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Test iBGP - Peer-group update-source uses loopback as source
************************************************************

Description
===========

Test that ``update-source`` configured on a peer-group is inherited by its
members. DUT0 uses the dummy interface (2.2.2.100) as the source
address for BGP sessions instead of the physical interface.

Scenario
========

.. include:: update-source/testibgp-peer-groupupdate-sourceusesloopbackassource

.. raw:: html

  <hr>