Merge pull request #385 from Cheeze-It/master

mpls-conf: T915: Added documentation for MPLS for missing features

docs/routing/mpls.rst

@@ -58,6 +58,11 @@ It is highly recommended 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 explicitly set in the configuration.
 
+Another thing to keep in mind with LDP is that much like BGP, it is a protocol that
+runs on top of TCP. It however does not have an ability to do something like a
+refresh capability like BGPs route refresh capability. Therefore one might have
+to reset the neighbor for a capability change or a configuration change to work.
+
 Configuration Options
 =====================
 
@@ -76,16 +81,29 @@ Configuration Options
 
   Use this command to set the IPv4 or IPv6 transport-address used by LDP.
 
-.. cfgcmd:: set protocols mpls ldp neighbor <IPv4 address> password <password>
+.. 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.
+  order to become neighbors. 
+  
+.. cfgcmd:: set protocols mpls ldp neighbor <address> session-holdtime <seconds>
+  
+  Use this command to configure a specific session hold time for LDP peers.
+  Set the IP address of the LDP peer and a session hold time that should be
+  configured for it. You may have to reset the neighbor for this to work.
+  
+.. cfgcmd:: set protocols mpls ldp neighbor <address> ttl-security <disable | hop count>
 
-.. cfgcmd:: set protocols mpls ldp discovery hello-interval <seconds>
+  Use this command to enable, disable, or specify hop count for TTL security
-.. cfgcmd:: set protocols mpls ldp discovery hello-holdtime <seconds>
+  for LDP peers. By default the value is set to 255 (or max TTL). 
 
-  Use this command if you would like to set the discovery hello and hold time
+.. cfgcmd:: set protocols mpls ldp discovery hello-ipv4-interval <seconds>
+.. cfgcmd:: set protocols mpls ldp discovery hello-ipv4-holdtime <seconds>
+.. cfgcmd:: set protocols mpls ldp discovery hello-ipv6-interval <seconds>
+.. cfgcmd:: set protocols mpls ldp discovery hello-ipv6-holdtime <seconds>
+
+  Use these commands if you would like to set the discovery hello and hold time
   parameters.
 
 .. cfgcmd:: set protocols mpls ldp discovery session-ipv4-holdtime <seconds>
@@ -98,6 +116,44 @@ Configuration Options
 
   Use this command if you would like for the router to advertise FECs with a label
   of 0 for explicit null operations.
+  
+.. cfgcmd:: set protocols mpls ldp allocation ipv4 access-list <access list number>
+.. cfgcmd:: set protocols mpls ldp allocation ipv6 access-list6 <access list number>
+
+  Use this command if you would like to control the local FEC allocations for LDP. A
+  good example would be for your local router to not allocate a label for everything.
+  Just a label for what it's useful. A good example would be just a loopback label.
+  
+.. cfgcmd:: set protocols mpls ldp parameters cisco-interop-tlv
+
+  Use this command to use a Cisco non-compliant format to send and interpret the
+  Dual-Stack capability TLV for IPv6 LDP communications. This is related to :rfc:`7552`.
+  
+.. cfgcmd:: set protocols mpls ldp parameters transport-prefer-ipv4
+
+  Use this command to prefer IPv4 for TCP peer transport connection for LDP when
+  both an IPv4 and IPv6 LDP address are configured on the same interface.
+  
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv4 enable
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv6 enable
+
+  Use this command to enable targeted LDP sessions to the local router. The router
+  will then respond to any sessions that are trying to connect to it that are not
+  a link local type of TCP connection.
+  
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv4 address <address>
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv6 address <address>
+
+  Use this command to enable the local router to try and connect with a targeted
+  LDP session to another router.
+  
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv4 hello-holdtime <seconds>
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv4 hello-interval <seconds>
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv6 hello-holdtime <seconds>
+.. cfgcmd:: set protocols mpls ldp targeted-neighbor ipv6 hello-interval <seconds>
+
+  Use these commands if you would like to set the discovery hello and hold time
+  parameters for the targeted LDP neighbors.
 
 
 Sample configuration to setup LDP on VyOS