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-rw-r--r--doc/bird.sgml22
1 files changed, 19 insertions, 3 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml
index 53d9fcd..1eaf382 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1675,7 +1675,7 @@ protocol ospf <name> {
<tag>rx buffer <M>num</M></tag>
This sets the size of buffer used for receiving packets. The buffer should
be bigger than maximal size of any packets. Value NORMAL (default)
- means 2*MTU, value LARGE means maximal allowed packet - 65536.
+ means 2*MTU, value LARGE means maximal allowed packet - 65535.
<tag>type broadcast</tag>
BIRD detects a type of a connected network automatically, but sometimes it's
@@ -1695,6 +1695,14 @@ protocol ospf &lt;name&gt; {
If set, don't send hello to any undefined neighbor. This switch
is ignored on any non-NBMA network. Default 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
+ unplugged), neighbors are immediately considered unreachable
+ and only the address of the iface (instead of whole network
+ prefix) is propagated. It is possible that some hardware
+ drivers or platforms do not implement this feature. Default: off.
+
<tag>authentication none</tag>
No passwords are sent in OSPF packets. This is the default value.
@@ -2045,8 +2053,8 @@ 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 has no configuration options. Instead, the
-definition of the protocol contains a list of static routes:
+<p>The Static protocol does not have many configuration options. The
+definition of the protocol contains mainly a list of static routes:
<descrip>
<tag>route <m/prefix/ via <m/ip/</tag> Static route through
@@ -2056,6 +2064,14 @@ definition of the protocol contains a list of static routes:
<tag>route <m/prefix/ drop|reject|prohibit</tag> Special routes
specifying to drop the packet, return it as unreachable or return
it as administratively prohibited.
+
+ <tag>check link <M>switch</M></tag>
+ The only option of the static protocol. 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.
</descrip>
<p>Static routes have no specific attributes.