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Update of a documentation - new options for AS4, MD5 auth and route reflection.

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This commit is contained in:
Ondrej Zajicek 2008-10-26 22:52:21 +01:00
parent ba5ed6f3e4
commit 1adc17b4b5
2 changed files with 37 additions and 7 deletions
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3
doc/bird.conf.example
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@ -179,6 +179,9 @@ protocol static {
# default bgp_med 0; # MED value we use for comparison when none is defined
# default bgp_local_pref 0; # The same for local preference
# source address 62.168.0.14; # What local address we use for the TCP connection
# password "secret" # Password used for MD5 authentication
# rr client; # I am a route reflector and the neighor is my client
# rr cluster id 1.0.0.1 # Use this value for cluster id instead of my router id
# export where source=RTS_STATIC;
# export filter {
# if source = RTS_STATIC then {

41
doc/bird.sgml
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@ -655,13 +655,19 @@ routing table it wishes to export along with complete path information
route) in order to avoid routing loops.
<p>BIRD supports all requirements of the BGP4 standard as defined in
RFC 1771<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc1771.txt">
including several enhancements from the
latest draft<htmlurl url="ftp://ftp.rfc-editor.org/internet-drafts/draft-ietf-idr-bgp4-09.txt">.
It also supports the community attributes as per
RFC 1997<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc1997.txt">,
capability negotiation defined in
RFC 2842<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc2842.txt">.
RFC 4271<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc4271.txt">
It also supports the community attributes
(RFC 1997<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc1997.txt">),
capability negotiation
(RFC 3392<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc3392.txt">),
MD5 password authentication
(RFC 2385<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc2385.txt">),
route reflectors
(RFC 4456<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc4456.txt">),
and 4B AS numbers
(RFC 4893<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc4893.txt">).
For IPv6, it uses the standard multiprotocol extensions defined in
RFC 2283<htmlurl url="ftp://ftp.rfc-editor.org/in-notes/rfc2283.txt">
including changes described in the
@ -721,6 +727,27 @@ for each neighbor using the following configuration parameters:
for next hop calculation. Default: the address of the local end
of the interface our neighbor is connected to.
<tag>password <m/string/</tag> Use this password for MD5 authentication
of BGP sessions. Default: no authentication.
<tag>rr client</tag> Be a route reflector and treat neighbor as
route reflection client. Default: disabled.
<tag>rr cluster id <m/IPv4 address/</tag> Route reflectors use cluster id
to avoid route reflection loops. When there is one route reflector in a cluster
it usually uses its router id as a cluster id, but when there are more route
reflectors in a cluster, these need to be configured (using this option) to
use a common cluster id. Clients in a cluster need not known their cluster
id and this option is not allowed to them Default: a same as router id.
<tag>enable as4 <m/switch/</tag> BGP protocol was designed to use 2B AS numbers
and was extended later to allow 4B AS number. BIRD supports 4B AS extension,
but by disabling this option it can be persuaded not to advertise it and
to maintain old-style sessions with its neighbors. This might be useful for
circumventing bugs in neighbor's implementation of 4B AS extension.
Even when disabled (off), BIRD behaves internally as AS4-aware BGP router.
Default: on.
<tag>disable after error <m/switch/</tag> When an error is encountered (either
locally or by the other side), disable the instance automatically
and wait for an administrator to fix the problem manually. Default: off.