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| author | katerina.kubecova <katerina.kubecova@nic.cz> | 2023-09-19 11:11:24 +0200 |
|---|---|---|
| committer | Maria Matejka <mq@ucw.cz> | 2023-09-20 14:15:18 +0200 |
| commit | a0fb0eaa6780e60b7c5434dfe0e2ed402e5a4ea4 (patch) | |
| tree | 11ae3a94c24f580239bcae1dd9b1925c2d35b6fa /doc | |
| parent | cc122bf0c295207a909061a365eccd49462b1b16 (diff) | |
BGP: Setting and unsetting unknown attributes
All these must be declared as bytestring. Allows operators to delete
unwanted attributes breaking the Internet:
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bird.sgml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 3be266cb..366797ba 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -3287,6 +3287,13 @@ some of them (marked with `<tt/O/') are optional. name="local Role"> is configured it set automatically. </descrip> +<p>For attributes unknown by BIRD, the user can assign a name (on top level) +to an attribute by its number. This defined name can be used then to both set +(by a bytestring literal, transitive) or unset the given attribute even though +BIRD knows nothing about it: + +<tt><label id="bgp-attribute-custom">attribute bgp <m/number/ bytestring <m/name/;</tt> + <sect1>Example <label id="bgp-exam"> |