summaryrefslogtreecommitdiff
path: root/docs/configuration/interfaces/dummy.rst
diff options
context:
space:
mode:
authorrebortg <github@ghlr.de>2020-11-29 21:52:28 +0100
committerrebortg <github@ghlr.de>2020-11-29 21:52:28 +0100
commit4abded8025a47990e58cd0a5fe9b96e38f4a3715 (patch)
tree2a6ebaa9dcf96a10e95577ae446c3897b0938fd4 /docs/configuration/interfaces/dummy.rst
parente7f01e6efc8578603592ff86c031d46f1f1f9d82 (diff)
downloadvyos-documentation-4abded8025a47990e58cd0a5fe9b96e38f4a3715.tar.gz
vyos-documentation-4abded8025a47990e58cd0a5fe9b96e38f4a3715.zip
arrange: interfaces
Diffstat (limited to 'docs/configuration/interfaces/dummy.rst')
-rw-r--r--docs/configuration/interfaces/dummy.rst79
1 files changed, 79 insertions, 0 deletions
diff --git a/docs/configuration/interfaces/dummy.rst b/docs/configuration/interfaces/dummy.rst
new file mode 100644
index 00000000..c36d0024
--- /dev/null
+++ b/docs/configuration/interfaces/dummy.rst
@@ -0,0 +1,79 @@
+.. _dummy-interface:
+
+#####
+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.
+
+.. 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 dependent
+ on physical link states and multiple routes can be chosen to the
+ destination. A :ref:`dummy-interface` Interface should always be preferred
+ over a :ref:`loopback-interface` interface.
+
+*************
+Configuration
+*************
+
+Common interface configuration
+==============================
+
+.. cmdinclude:: ../_include/interface-address.txt
+ :var0: dummy
+ :var1: dum0
+
+.. cmdinclude:: ../_include/interface-description.txt
+ :var0: dummy
+ :var1: dum0
+
+.. cmdinclude:: ../_include/interface-disable.txt
+ :var0: dummy
+ :var1: dum0
+
+.. cmdinclude:: ../_include/interface-vrf.txt
+ :var0: dummy
+ :var1: dum0
+
+*********
+Operation
+*********
+
+.. opcmd:: show interfaces dummy
+
+ Show brief interface information.information
+
+ .. code-block:: none
+
+ vyos@vyos:~$ show interfaces dummy
+ Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
+ Interface IP Address S/L Description
+ --------- ---------- --- -----------
+ dum0 172.18.254.201/32 u/u
+
+.. opcmd:: show interfaces dummy <interface>
+
+ Show detailed information on given `<interface>`
+
+ .. code-block:: none
+
+ vyos@vyos:~$ show interfaces ethernet eth0
+ dum0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
+ link/ether 26:7c:8e:bc:fc:f5 brd ff:ff:ff:ff:ff:ff
+ inet 172.18.254.201/32 scope global dum0
+ valid_lft forever preferred_lft forever
+ inet6 fe80::247c:8eff:febc:fcf5/64 scope link
+ valid_lft forever preferred_lft forever
+
+ RX: bytes packets errors dropped overrun mcast
+ 0 0 0 0 0 0
+ TX: bytes packets errors dropped carrier collisions
+ 1369707 4267 0 0 0 0
+
+