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authorChristian Poessinger <christian@poessinger.com>2020-01-02 22:14:51 +0100
committerChristian Poessinger <christian@poessinger.com>2020-01-02 22:14:51 +0100
commit10d015f05307837e445fb612d2f4087d026a888a (patch)
tree1471a2cd8341f98f7c4d91b3df03bc788530f29a
parent432f13801f90622b154b214d050516dad2a320c6 (diff)
downloadvyos-documentation-10d015f05307837e445fb612d2f4087d026a888a.tar.gz
vyos-documentation-10d015f05307837e445fb612d2f4087d026a888a.zip
dummy: loopback: add usage hint
-rw-r--r--docs/interfaces/dummy.rst15
-rw-r--r--docs/interfaces/loopback.rst7
2 files changed, 19 insertions, 3 deletions
diff --git a/docs/interfaces/dummy.rst b/docs/interfaces/dummy.rst
index 7fee2700..4627d1dc 100644
--- a/docs/interfaces/dummy.rst
+++ b/docs/interfaces/dummy.rst
@@ -6,9 +6,18 @@ Dummy
The dummy interface is really a little exotic, but rather useful nevertheless.
Dummy interfaces are much like the :ref:`loopback-interface` interface, except
-you can have as many as you want. Dummy interfaces can be used as interfaces
-that always stay up (in the same fashion to loopbacks in Cisco IOS), or for
-testing purposes.
+you can have as many as you want.
+
+.. note:: Dummy interfaces can be used as interfaces that always stay up (in
+ the same fashion to loopbacks in Cisco IOS), or for testing purposes.
+
+.. hint:: A Dummy interface is always up, thus it could be used for
+ management traffic or as source/destination for and :abbr:`IGP (Interior
+ Gateway Protocol)` like :ref:`bgp` so your internal BGP link is not dependant
+ on physical link states and multiple routes can be choosen to the
+ destination. A :ref:`dummy-interface` Interface should always be preferred
+ over a :ref:`loopback-interface` interface.
+
Configuration
#############
diff --git a/docs/interfaces/loopback.rst b/docs/interfaces/loopback.rst
index 2d554de4..f7519631 100644
--- a/docs/interfaces/loopback.rst
+++ b/docs/interfaces/loopback.rst
@@ -12,6 +12,13 @@ services on your local machine.
you need multiple interfaces, please use the :ref:`dummy-interface`
interface type.
+.. hint:: A lookback interface is always up, thus it could be used for
+ management traffic or as source/destination for and :abbr:`IGP (Interior
+ Gateway Protocol)` like :ref:`bgp` so your internal BGP link is not dependant
+ on physical link states and multiple routes can be choosen to the
+ destination. A :ref:`dummy-interface` Interface should always be preferred
+ over a :ref:`loopback-interface` interface.
+
Configuration
=============