diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bird.sgml | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 39dadaf2..d1d2bdae 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -2274,6 +2274,7 @@ avoid routing loops. <item> <rfc id="8092"> - BGP Large Communities Attribute <item> <rfc id="8203"> - BGP Administrative Shutdown Communication <item> <rfc id="8212"> - Default EBGP Route Propagation Behavior without Policies +<item> <rfc id="9117"> - Revised Validation Procedure for BGP Flow Specifications </itemize> <sect1>Route selection rules @@ -2659,7 +2660,7 @@ using the following configuration parameters: <tag><label id="bgp-error-wait-time">error wait time <m/number/,<m/number/</tag> Minimum and maximum delay in seconds between a protocol failure (either - local or reported by the peer) and automatic restart. Doesn't apply + local or reported by the peer) and automatic restart. Doesn not apply when <cf/disable after error/ is configured. If consecutive errors happen, the delay is increased exponentially until it reaches the maximum. Default: 60, 300. @@ -2837,6 +2838,31 @@ be used in explicit configuration. explicitly (to conserve memory). This option requires that the connected routing table is <ref id="dsc-table-sorted" name="sorted">. Default: off. + <tag><label id="bgp-validate">validate <m/switch/</tag> + Apply flowspec validation procedure as described in <rfc id="8955"> + section 6 and <rfc id="9117">. The Validation procedure enforces that + only routers in the forwarding path for a network can originate flowspec + rules for that network. The validation procedure should be used for EBGP + to prevent injection of malicious flowspec rules from outside, but it + should also be used for IBGP to ensure that selected flowspec rules are + consistent with selected IP routes. The validation procedure uses an IP + routing table (<ref id="bgp-base-table" name="base table">, see below) + against which flowspec rules are validated. This option is limited to + flowspec channels. Default: off (for compatibility reasons). + + Note that currently the flowspec validation does not work reliably + together with <ref id="bgp-import-table" name="import table"> option + enabled on flowspec channels. + + <tag><label id="bgp-base-table">base table <m/name/</tag> + Specifies an IP table used for the flowspec validation procedure. The + table must have enabled <cf/trie/ option, otherwise the validation + procedure would not work. The type of the table must be <cf/ipv4/ for + <cf/flow4/ channels and <cf/ipv6/ for <cf/flow6/ channels. This option + is limited to flowspec channels. Default: the main table of the + <cf/ipv4/ / <cf/ipv6/ channel of the same BGP instance, or the + <cf/master4/ / <cf/master6/ table if there is no such channel. + <tag><label id="bgp-extended-next-hop">extended next hop <m/switch/</tag> BGP expects that announced next hops have the same address family as associated network prefixes. This option provides an extension to use |