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-rw-r--r--docs/routing/index.rst11
-rw-r--r--docs/routing/mpls.rst107
2 files changed, 113 insertions, 5 deletions
diff --git a/docs/routing/index.rst b/docs/routing/index.rst
index f0214ac5..a34bbfac 100644
--- a/docs/routing/index.rst
+++ b/docs/routing/index.rst
@@ -8,13 +8,14 @@ Routing
:maxdepth: 1
arp
+ bfd
bgp
- rpki
+ mpls
+ mss-clamp
+ multicast
ospf
pbr
rip
- static
- bfd
- mss-clamp
routing-policy
- multicast
+ rpki
+ static
diff --git a/docs/routing/mpls.rst b/docs/routing/mpls.rst
new file mode 100644
index 00000000..c6d9d0fe
--- /dev/null
+++ b/docs/routing/mpls.rst
@@ -0,0 +1,107 @@
+.. _mpls:
+
+****
+MPLS
+****
+
+
+Label Distribution Protocol
+===========================
+
+
+.. note:: VyOS' MPLS support is not finished yet, its funcitionality is
+ limited. Currently it can only be configured as a P router, that is,
+ an LSR in the core of an MPLS network.
+
+
+The **Multi-Protocol Label Switching** (MPLS) architecture does not
+assume a single protocol to create MPLS paths. VyOS supports the Label
+Distribution Protocol (LDP) as implemented by FRR, based on `RFC 5036 <https://tools.ietf.org/html/rfc5036.html>`__.
+
+LDT it is an MPLS signaling protocol that distributes labels creating
+MPLS paths in a dynamic manner. LDT is not exactly a routing protocol,
+as it relies on other routing protocols for forwarding decisions.
+
+
+.. cfgcmd:: set protocols mpls ldp interface <interface>
+
+ Use this command to enable LDP in the interface you define.
+
+
+.. cfgcmd:: set protocols mpls ldp router-id <address>
+
+ Use this command to configure the IP address used as the LDP
+ router-id of the local device
+
+
+In order to allow the exchange of label advertisements required for LDP,
+a TCP session should be established between routers. Routers will need
+to learn each other's **transport address** in order to establish the
+TCP session.
+
+You may want to use the same address for both the LDP router-id and the
+discovery transport address, but for VyOS MPLS LDP to work both
+parameters must be explicitely set in the configuration.
+
+
+.. cfgcmd:: set protocols mpls ldp discovery transport-ipv4-address | transport-ipv6-address <address>
+
+ Use this command to set the IPv4 or IPv6 transport-address used by
+ LDP.
+
+.. cfgcmd:: set protocols mpls ldp neighbor <address> password <password>
+
+ Use this command to configure authentication for LDP peers. Set the
+ IP address of the LDP peer and a password that should be shared in
+ order to become neighbors.
+
+
+Example
+-------
+
+.. code-block:: none
+
+ set interfaces dummy dum0 address '2.2.2.2/32'
+ set interfaces ethernet eth1 address '10.0.0.2/24'
+ set interfaces ethernet eth2 address '10.0.255.1/24'
+ set protocols mpls ldp discovery transport-ipv4-address '2.2.2.2'
+ set protocols mpls ldp interface 'eth1'
+ set protocols mpls ldp interface 'eth2'
+ set protocols mpls ldp router-id '2.2.2.2'
+ set protocols ospf area 0 network '0.0.0.0/0'
+ set protocols ospf parameters router-id '2.2.2.2'
+
+
+show commands
+-------------
+
+When LDP is working, you will be able to see label information in the
+outcome of ``show ip route``. Besides that information, there are also
+specific *show* commands for LDP:
+
+
+.. opcmd:: show mpls ldp binding
+
+ Use this command to see the Label Information Base.
+
+
+.. opcmd:: show mpls ldp discovery
+
+ Use this command to see Discovery Hello information
+
+
+.. opcmd:: show mpls ldp interface
+
+ Use this command to see LDP interface information
+
+
+.. opcmd:: show mpls ldp neighbor
+
+ Uset this command to see LDP neighbor information
+
+
+.. opcmd:: show mpls ldp neighbor detail
+
+ Uset this command to see detailed LDP neighbor information
+
+