diff options
| author | Ondrej Zajicek <santiago@crfreenet.org> | 2023-10-05 21:29:04 +0200 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2023-10-05 21:54:25 +0200 |
| commit | 57aa077227d1f2440dc1b2bb6cbbebd418a6b898 (patch) | |
| tree | 6fa256de15ca415262cfaeb7c4e0cc61cca3cdd1 /doc/bird.sgml | |
| parent | ba01a6f2e66d03eb5d9426fdf4973f30e09c5710 (diff) | |
BGP: Improve custom BGP attributes
- Implement EA_GET for custom BGP attributes
- Forbid EA_SET on existing opaque attributes
- Forbid redefining existing attributes
- Document possible compatibility problems
Diffstat (limited to 'doc/bird.sgml')
| -rw-r--r-- | doc/bird.sgml | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index a023473f..5e795450 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -3561,10 +3561,14 @@ 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: +<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 get, set (as a +bytestring, transitive) or unset the given attribute even though BIRD knows +nothing about it. + +<p>Note that it is not possible to define an attribute with the same number +as one known by BIRD, therefore use of this statement carries a risk of +incompatibility with future BIRD versions. <tt><label id="bgp-attribute-custom">attribute bgp <m/number/ bytestring <m/name/;</tt> |