diff options
| author | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2016-09-19 12:29:56 +0200 |
|---|---|---|
| committer | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2016-09-19 12:29:56 +0200 |
| commit | 6e75d0d27fe85f12a22928e5729465823704281e (patch) | |
| tree | 4813d2bd3507439e27f566b29ebd10ed46afa2a6 /doc/bird.sgml | |
| parent | 292f7858e60b0dffd8c06f6818d90ccf3b34e0b2 (diff) | |
KRT: Add krt_scope attribute
Add a new route attribute, krt_scope, to expose the Linux kernel route
scope. Constants from /etc/iproute2/rt_scopes (prefixed by "ips_") are
expected to be used with the attribute. Both import and export are
supported.
Also, the patch fixes device route export to the kernel, by setting link
scope automatically.
Diffstat (limited to 'doc/bird.sgml')
| -rw-r--r-- | doc/bird.sgml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 9bd7df86..af5b7980 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -2443,6 +2443,15 @@ these attributes: <tag>int <cf/krt_realm/</tag> (Linux) The realm of the route. Can be used for traffic classification. + + <tag>int <cf/krt_scope/</tag> (Linux IPv4) + The scope of the route. Valid values are 0-254, although Linux kernel + may reject some values depending on route type and nexthop. It is + supposed to represent `indirectness' of the route, where nexthops of + routes are resolved through routes with a higher scope, but in current + kernels anything below <it/link/ (253) is treated as <it/global/ (0). + When not present, global scope is implied for all routes except device + routes, where link scope is used by default. </descrip> <p>In Linux, there is also a plenty of obscure route attributes mostly focused |