diff options
Diffstat (limited to 'doc/bird.sgml')
| -rw-r--r-- | doc/bird.sgml | 93 |
1 files changed, 80 insertions, 13 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 20738be3..087a4ebf 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -426,10 +426,37 @@ to zero to disable it. An empty <cf><m/switch/</cf> is equivalent to <cf/on/ uses global router id. <tag>import all | none | filter <m/name/ | filter { <m/filter commands/ } | where <m/filter expression/</tag> - Specify a filter to be used for filtering routes coming from the protocol to the routing table. <cf/all/ is shorthand for <cf/where true/ and <cf/none/ is shorthand for <cf/where false/. Default: <cf/all/. - - <tag>export <m/filter/</tag> This is similar to the <cf>import</cf> keyword, except that it - works in the direction from the routing table to the protocol. Default: <cf/none/. + Specify a filter to be used for filtering routes coming from + the protocol to the routing table. <cf/all/ is shorthand for + <cf/where true/ and <cf/none/ is shorthand for + <cf/where false/. Default: <cf/all/. + + <tag>export <m/filter/</tag> + This is similar to the <cf>import</cf> keyword, except that it + works in the direction from the routing table to the protocol. + Default: <cf/none/. + + <tag>import limit <m/number/ [action warn | block | restart | disable]</tag> + Specify an import route limit (a maximum number of routes + imported from the protocol) and optionally the action to be + taken when the limit is hit. Warn action just prints warning + log message. Block action ignores new routes coming from the + protocol. Restart and disable actions shut the protocol down + like appropriate commands. Disable is the default action if an + action is not explicitly specified. Note that limits are reset + during protocol reconfigure, reload or restart. + Default: <cf/none/. + + <tag>export limit <m/number/ [action warn | block | restart | disable]</tag> + Specify an export route limit, works similarly to + the <cf>import limit</cf> option, but for the routes exported + to the protocol. This option is experimental, there are some + problems in details of its behavior -- the number of exported + routes can temporarily exceed the limit without triggering it + during protocol reload, exported routes counter ignores route + blocking and block action also blocks route updates of alread + accepted routes -- and these details will probably change in + the future. Default: <cf/none/. <tag>description "<m/text/"</tag> This is an optional description of the protocol. It is displayed as a part of the @@ -1045,7 +1072,16 @@ undefined value is regarded as empty clist for most purposes. routes). Read-only. <tag><m/enum/ dest</tag> - Type of destination the packets should be sent to (<cf/RTD_ROUTER/ for forwarding to a neighboring router, <cf/RTD_DEVICE/ for routing to a directly-connected network, <cf/RTD_BLACKHOLE/ for packets to be silently discarded, <cf/RTD_UNREACHABLE/, <cf/RTD_PROHIBIT/ for packets that should be returned with ICMP host unreachable / ICMP administratively prohibited messages). Read-only. + Type of destination the packets should be sent to + (<cf/RTD_ROUTER/ for forwarding to a neighboring router, + <cf/RTD_DEVICE/ for routing to a directly-connected network, + <cf/RTD_MULTIPATH/ for multipath destinations, + <cf/RTD_BLACKHOLE/ for packets to be silently discarded, + <cf/RTD_UNREACHABLE/, <cf/RTD_PROHIBIT/ for packets that + should be returned with ICMP host unreachable / ICMP + administratively prohibited messages). Can be changed, but + only to <cf/RTD_BLACKHOLE/, <cf/RTD_UNREACHABLE/ or + <cf/RTD_PROHIBIT/. <tag><m/int/ igp_metric</tag> The optional attribute that can be used to specify a distance @@ -1327,7 +1363,8 @@ for each neighbor using the following configuration parameters: <tag>route limit <m/number/</tag> The maximal number of routes that may be imported from the protocol. If the route limit is - exceeded, the connection is closed with error. Default: no limit. + exceeded, the connection is closed with error. Limit is currently implemented as + <cf/import limit number exceed restart/. Default: no limit. <tag>disable after error <m/switch/</tag> When an error is encountered (either locally or by the other side), disable the instance automatically @@ -1774,7 +1811,7 @@ protocol ospf <name> { summary <switch>; cost <num>; } - interface <interface pattern> { + interface <interface pattern> [instance <num>] { cost <num>; stub <switch>; hello <num>; @@ -1788,6 +1825,7 @@ protocol ospf <name> { type [broadcast|bcast|pointopoint|ptp| nonbroadcast|nbma|pointomultipoint|ptmp]; strict nonbroadcast <switch>; + real broadcast <switch>; check link <switch>; ecmp weight <num>; authentication [none|simple|cryptographic]; @@ -1804,7 +1842,7 @@ protocol ospf <name> { <ip> eligible; }; }; - virtual link <id> { + virtual link <id> [instance <num>] { hello <num>; retransmit <num>; wait <num>; @@ -1924,14 +1962,19 @@ protocol ospf <name> { subnetworks of given stub network are suppressed. This might be used, for example, to aggregate generated stub networks. - <tag>interface <M>pattern</M></tag> + <tag>interface <M>pattern</M> [instance <m/num/]</tag> Defines that the specified interfaces belong to the area being defined. See <ref id="dsc-iface" name="interface"> common option for detailed description. + In OSPFv3, you can specify instance ID for that interface + description, so it is possible to have several instances of + that interface with different options or even in different areas. - <tag>virtual link <M>id</M></tag> - Virtual link to router with the router id. Virtual link acts as a - point-to-point interface belonging to backbone. The actual area is - used as transport area. This item cannot be in the backbone. + <tag>virtual link <M>id</M> [instance <m/num/]</tag> + Virtual link to router with the router id. Virtual link acts + as a point-to-point interface belonging to backbone. The + actual area is used as transport area. This item cannot be in + the backbone. In OSPFv3, you could also use several virtual + links to one destination with different instance IDs. <tag>cost <M>num</M></tag> Specifies output cost (metric) of an interface. Default value is 10. @@ -2016,6 +2059,16 @@ protocol ospf <name> { If set, don't send hello to any undefined neighbor. This switch is ignored on other than NBMA or PtMP networks. Default value is no. + <tag>real broadcast <m/switch/</tag> + In <cf/type broadcast/ or <cf/type ptp/ network + configuration, OSPF packets are sent as IP multicast + packets. This option changes the behavior to using + old-fashioned IP broadcast packets. This may be useful as a + workaround if IP multicast for some reason does not work or + does not work reliably. This is a non-standard option and + probably is not interoperable with other OSPF + implementations. Default value is no. + <tag>check link <M>switch</M></tag> If set, a hardware link state (reported by OS) is taken into consideration. When a link disappears (e.g. an ethernet cable is @@ -2397,6 +2450,20 @@ protocol radv { prefix 2001:0DB8:2000::/48 { autonomous off; # Do not autoconfigure }; + + rdnss 2001:0DB8:1234::10; # Short form of RDNSS + + rdnss { + lifetime mult 10; + ns 2001:0DB8:1234::11; + ns 2001:0DB8:1234::12; + }; + + dnssl { + lifetime 3600; + domain "abc.com"; + domain "xyz.com"; + }; } </code> |