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doc: add ldp information over transport connection

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transport connection prefers ipv6, unless ipv4 is explicitly configured
on ldp.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
This commit is contained in:
Philippe Guibert 2018-11-28 14:26:15 +01:00
parent 6c241117f8
commit a305be43e9
1 changed files with 10 additions and 0 deletions
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doc/user/ldpd.rst
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@ -151,6 +151,16 @@ LDP Configuration
HOLDTIME value ranges from 1 to 65535 seconds. Default value is 15 seconds.
That value is added as a TLV in the LDP messages.
.. index:: [no] dual-stack transport-connection prefer ipv4
.. clicmd:: [no] dual-stack transport-connection prefer ipv4
When *ldpd* is configured for dual-stack operation, the transport connection
preference is IPv6 by default (as specified by :rfc:`7552`). On such
circumstances, *ldpd* will refuse to establish TCP connections over IPv4.
You can use above command to change the transport connection preference to
IPv4. In this case, it will be possible to distribute label mappings for
IPv6 FECs over TCPv4 connections.
.. _show-ldp-information:
Show LDP Information