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doc: improve PIM documentation

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Remove duplicates and explain MSDP better.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2021-05-03 13:38:21 -03:00
parent 8c70c9e290
commit ccfd681d98
1 changed files with 30 additions and 28 deletions
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58
doc/user/pim.rst
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@ -154,20 +154,6 @@ Certain signals have special meanings to *pimd*.
urib-only
Lookup in the Unicast Rib only.
.. clicmd:: ip msdp mesh-group [WORD]
Create or Delete a multicast source discovery protocol mesh-group using
[WORD] as the group name.
.. clicmd:: ip msdp mesh-group WORD member A.B.C.D
Attach or Delete A.B.C.D to the MSDP mesh group WORD specified.
.. clicmd:: ip msdp mesh-group WORD source A.B.C.D
For the address specified A.B.C.D use that as the source address for
mesh group packets being sent.
.. clicmd:: ip igmp generate-query-once [version (2-3)]
Generate IGMP query (v2/v3) on user requirement. This will not depend on
@ -308,28 +294,44 @@ caution. Most of the time this will not be necessary.
Multicast Source Discovery Protocol (MSDP) Configuration
========================================================
.. clicmd:: ip msdp mesh-group [WORD] member A.B.C.D
MSDP can be setup in different ways:
Include a MSDP peer as a member of a MSDP mesh-group.
* MSDP meshed-group: where all peers are connected with each other creating
a fully meshed network. SAs (source active) messages are not forwarded in
this mode because the origin is able to send SAs to all members.
.. clicmd:: ip msdp mesh-group [WORD] source A.B.C.D
This setup is commonly used with anycast.
Create a MSDP mesh-group, defining a name for it and an associated local source
address.
* MSDP peering: when there is one or more peers that are not fully meshed. SAs
may be forwarded depending on the result of filtering and RPF checks.
This setup is commonly consistent with BGP peerings (for RPF checks).
* MSDP default peer: there is only one peer and all SAs will be forwarded
there.
.. note::
MSDP default peer and SA filtering is not implemented.
Commands available for MSDP:
.. clicmd:: ip msdp mesh-group WORD member A.B.C.D
Create or update a mesh group to include the specified MSDP peer.
.. clicmd:: ip msdp mesh-group WORD source A.B.C.D
Create or update a mesh group to set the source address used to connect to
peers.
.. clicmd:: ip msdp peer A.B.C.D source A.B.C.D
Establish a MSDP connection with a peer.
Create a regular MSDP session with peer using the specified source address.
Remove a MSDP peer member from a MSDP mesh-group.
Delete a MSDP mesh-group.
Delete a MSDP peer connection.
.. _show-pim-information:
Show PIM Information