Documentation update
This commit is contained in:
Ondrej Zajicek (work)
parent
e90dd656cc
commit
43fc6bb0fb
1 changed files with 76 additions and 22 deletions
|
|
@ -173,7 +173,7 @@ BIRD executable by configuring out routing protocols you don't use, and
|
|||
|
||||
<tag>-l</tag>
|
||||
look for a configuration file and a communication socket in the current
|
||||
working directory instead of in default system paths. However, paths
|
||||
working directory instead of in default system locations. However, paths
|
||||
specified by options <cf/-c/, <cf/-s/ have higher priority.
|
||||
|
||||
<tag>-R</tag>
|
||||
|
|
@ -717,6 +717,10 @@ This argument can be omitted if there exists only a single instance.
|
|||
Show router status, that is BIRD version, uptime and time from last
|
||||
reconfiguration.
|
||||
|
||||
<tag>show interfaces [summary]</tag>
|
||||
Show the list of interfaces. For each interface, print its type, state,
|
||||
MTU and addresses assigned.
|
||||
|
||||
<tag>show protocols [all]</tag>
|
||||
Show list of protocol instances along with tables they are connected to
|
||||
and protocol status, possibly giving verbose information, if <cf/all/ is
|
||||
|
|
@ -744,16 +748,18 @@ This argument can be omitted if there exists only a single instance.
|
|||
Show contents of an OSPF LSA database. Options could be used to filter
|
||||
entries.
|
||||
|
||||
<tag>show rip interfaces [<m/name/] ["<m/interface/"]</tag>
|
||||
Show detailed information about RIP interfaces.
|
||||
|
||||
<tag>show rip neighbors [<m/name/] ["<m/interface/"]</tag>
|
||||
Show a list of RIP neighbors and associated state.
|
||||
|
||||
<tag>show static [<m/name/]</tag>
|
||||
Show detailed information about static routes.
|
||||
|
||||
<tag>show bfd sessions [<m/name/]</tag>
|
||||
Show information about BFD sessions.
|
||||
|
||||
<tag>show interfaces [summary]</tag>
|
||||
Show the list of interfaces. For each interface, print its type, state,
|
||||
MTU and addresses assigned.
|
||||
|
||||
<tag>show symbols [table|filter|function|protocol|template|roa|<m/symbol/]</tag>
|
||||
Show the list of symbols defined in the configuration (names of
|
||||
protocols, routing tables etc.).
|
||||
|
|
@ -3376,6 +3382,11 @@ protocol rip [<name>] {
|
|||
RIP, the option is not supported for RIPng, as no further versions are
|
||||
defined.
|
||||
|
||||
<tag>version only <m/switch/</tag>
|
||||
Regardless of RIP version configured for the interface, BIRD accepts
|
||||
incoming packets of any RIP version. This option restrict accepted
|
||||
packets to the configured version. Default: no.
|
||||
|
||||
<tag>split horizon <m/switch/</tag>
|
||||
Split horizon is a scheme for preventing routing loops. When split
|
||||
horizon is active, routes are not regularly propagated back to the
|
||||
|
|
@ -3520,7 +3531,7 @@ default route to prevent routing loops).
|
|||
packets to a neighboring router, multipath routes specifying several (possibly
|
||||
weighted) neighboring routers, device routes specifying forwarding to hosts on a
|
||||
directly connected network, recursive routes computing their nexthops by doing
|
||||
route table lookups for a given IP and special routes (sink, blackhole etc.)
|
||||
route table lookups for a given IP, and special routes (sink, blackhole etc.)
|
||||
which specify a special action to be done instead of forwarding the packet.
|
||||
|
||||
<p>When the particular destination is not available (the interface is down or
|
||||
|
|
@ -3528,8 +3539,26 @@ the next hop of the route is not a neighbor at the moment), Static just
|
|||
uninstalls the route from the table it is connected to and adds it again as soon
|
||||
as the destination becomes adjacent again.
|
||||
|
||||
<p>The Static protocol does not have many configuration options. The definition
|
||||
of the protocol contains mainly a list of static routes:
|
||||
<p>There are three classes of definitions in Static protocol configuration --
|
||||
global options, static route definitions, and per-route options. Usually, the
|
||||
definition of the protocol contains mainly a list of static routes.
|
||||
|
||||
<p>Global options:
|
||||
|
||||
<descrip>
|
||||
<tag>check link <m/switch/</tag>
|
||||
If set, hardware link states of network interfaces are taken into
|
||||
consideration. When link disappears (e.g. ethernet cable is unplugged),
|
||||
static routes directing to that interface are removed. It is possible
|
||||
that some hardware drivers or platforms do not implement this feature.
|
||||
Default: off.
|
||||
|
||||
<tag>igp table <m/name/</tag>
|
||||
Specifies a table that is used for route table lookups of recursive
|
||||
routes. Default: the same table as the protocol is connected to.
|
||||
</descrip>
|
||||
|
||||
<p>Route definitions (each may also contain a block of per-route options):
|
||||
|
||||
<descrip>
|
||||
<tag>route <m/prefix/ via <m/ip/</tag>
|
||||
|
|
@ -3537,7 +3566,7 @@ of the protocol contains mainly a list of static routes:
|
|||
interface can be specified as a part of the address (e.g.,
|
||||
<cf/via fe80::1234%eth0/).
|
||||
|
||||
<tag>route <m/prefix/ multipath via <m/ip/ [weight <m/num/] [via ...]</tag>
|
||||
<tag>route <m/prefix/ multipath via <m/ip/ [weight <m/num/] [bfd </m/switch/] [via ...]</tag>
|
||||
Static multipath route. Contains several nexthops (gateways), possibly
|
||||
with their weights.
|
||||
|
||||
|
|
@ -3553,17 +3582,33 @@ of the protocol contains mainly a list of static routes:
|
|||
Special routes specifying to silently drop the packet, return it as
|
||||
unreachable or return it as administratively prohibited. First two
|
||||
targets are also known as <cf/drop/ and <cf/reject/.
|
||||
</descrip>
|
||||
|
||||
<tag>check link <m/switch/</tag>
|
||||
If set, hardware link states of network interfaces are taken into
|
||||
consideration. When link disappears (e.g. ethernet cable is unplugged),
|
||||
static routes directing to that interface are removed. It is possible
|
||||
that some hardware drivers or platforms do not implement this feature.
|
||||
Default: off.
|
||||
<p>Per-route options:
|
||||
|
||||
<tag>igp table <m/name/</tag>
|
||||
Specifies a table that is used for route table lookups of recursive
|
||||
routes. Default: the same table as the protocol is connected to.
|
||||
<descrip>
|
||||
<tag>bfd <m/switch/</tag>
|
||||
The Static protocol could use BFD protocol for next hop liveness
|
||||
detection. If enabled, a BFD session to the route next hop is created
|
||||
and the static route is BFD-controlled -- the static route is announced
|
||||
only if the next hop liveness is confirmed by BFD. If the BFD session
|
||||
fails, the static route is removed. Note that this is a bit different
|
||||
compared to other protocols, which may use BFD as an advisory mechanism
|
||||
for fast failure detection but ignores it if a BFD session is not even
|
||||
established.
|
||||
|
||||
This option can be used for static routes with a direct next hop, or
|
||||
also for for individual next hops in a static multipath route (see
|
||||
above). Note that BFD protocol also has to be configured, see
|
||||
<ref id="sect-bfd" name="BFD"> section for details. Default value is no.
|
||||
|
||||
<tag><m/filter expression/</tag>
|
||||
This is a special option that allows filter expressions to be configured
|
||||
on per-route basis. Can be used multiple times. These expressions are
|
||||
evaluated when the route is originated, similarly to the import filter
|
||||
of the static protocol. This is especially useful for configuring route
|
||||
attributes, e.g., <cf/ospf_metric1 = 100;/ for a route that will be
|
||||
exported to the OSPF protocol.
|
||||
</descrip>
|
||||
|
||||
<p>Static routes have no specific attributes.
|
||||
|
|
@ -3572,14 +3617,23 @@ of the protocol contains mainly a list of static routes:
|
|||
|
||||
<p><code>
|
||||
protocol static {
|
||||
table testable; # Connect to a non-default routing table
|
||||
table testable; # Connect to a non-default routing table
|
||||
check link; # Advertise routes only if link is up
|
||||
route 0.0.0.0/0 via 198.51.100.130; # Default route
|
||||
route 10.0.0.0/8 multipath # Multipath route
|
||||
route 10.0.0.0/8 multipath # Multipath route
|
||||
via 198.51.100.10 weight 2
|
||||
via 198.51.100.20
|
||||
via 198.51.100.20 bfd # BFD-controlled next hop
|
||||
via 192.0.2.1;
|
||||
route 203.0.113.0/24 unreachable; # Sink route
|
||||
route 10.2.0.0/24 via "arc0"; # Secondary network
|
||||
route 10.2.0.0/24 via "arc0"; # Secondary network
|
||||
route 192.168.10.0/24 via 198.51.100.100 {
|
||||
ospf_metric1 = 20; # Set extended attribute
|
||||
}
|
||||
route 192.168.10.0/24 via 198.51.100.100 {
|
||||
ospf_metric2 = 100; # Set extended attribute
|
||||
ospf_tag = 2; # Set extended attribute
|
||||
bfd; # BFD-controlled route
|
||||
}
|
||||
}
|
||||
</code>
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue