diff options
Diffstat (limited to 'doc/bird.sgml')
| -rw-r--r-- | doc/bird.sgml | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 2435d1c..a00062e 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -1655,10 +1655,12 @@ protocol ospf <name> { tick <num>; ecmp <switch> [limit <num>]; area <id> { - stub <switch>; - nssa <switch>; + stub; + nssa; summary <switch>; - stub cost <num>; + default nssa <switch>; + default cost <num>; + default cost2 <num>; translator <switch>; translator stability <num>; @@ -1747,20 +1749,20 @@ protocol ospf <name> { address, similarly to a router ID). The most important area is the backbone (ID 0) to which every other area must be connected. - <tag>stub <M>switch</M></tag> + <tag>stub</tag> This option configures the area to be a stub area. External routes are not flooded into stub areas. Also summary LSAs can be - limited in stub areas (see option <cf/summary/). Default - value is no. (Area is not stub.) + limited in stub areas (see option <cf/summary/). + By default, the area is not a stub area. - <tag>nssa <M>switch</M></tag> + <tag>nssa</tag> This option configures the area to be a NSSA (Not-So-Stubby Area). NSSA is a variant of a stub area which allows a limited way of external route propagation. Global external routes are not propagated into a NSSA, but an external route can be imported into NSSA as a (area-wide) NSSA-LSA (and possibly translated and/or aggregated on area boundary). - Default value is no. (Area is not NSSA.) + By default, the area is not NSSA. <tag>summary <M>switch</M></tag> This option controls propagation of summary LSAs into stub or @@ -1771,10 +1773,22 @@ protocol ospf <name> { summary LSAs could lead to more efficient routing at the cost of larger link state database. Default value is no. - <tag>stub cost <M>num</M></tag> + <tag>default nssa <M>switch</M></tag> + When <cf/summary/ option is enabled, default summary route is + no longer propagated to the NSSA. In that case, this option + allows to originate default route as NSSA-LSA to the NSSA. + Default value is no. + + <tag>default cost <M>num</M></tag> This option controls the cost of a default route propagated to stub and NSSA areas. Default value is 1000. + <tag>default cost2 <M>num</M></tag> + When a default route is originated as NSSA-LSA, its cost + can use either type 1 or type 2 metric. This option allows + to specify the cost of a default route in type 2 metric. + By default, type 1 metric (option <cf/default cost/) is used. + <tag>translator <M>switch</M></tag> This option controls translation of NSSA-LSAs into external LSAs. By default, one translator per NSSA is automatically |