diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/ospfd.texi | 68 |
1 files changed, 66 insertions, 2 deletions
diff --git a/doc/ospfd.texi b/doc/ospfd.texi index 509a75c7..6e8bed05 100644 --- a/doc/ospfd.texi +++ b/doc/ospfd.texi @@ -120,12 +120,46 @@ address 192.168.1.129/25. @deffnx {OSPF Command} {area <0-4294967295> range @var{a.b.c.d/m}} {} @deffnx {OSPF Command} {no area @var{a.b.c.d} range @var{a.b.c.d/m}} {} @deffnx {OSPF Command} {no area <0-4294967295> range @var{a.b.c.d/m}} {} +Summarize intra area paths from specified area into one Type-3 summary-LSA +announced to other areas. This command can be used only in ABR and ONLY +router-LSAs (Type-1) and network-LSAs (Type-2) (ie. LSAs with scope area) can +be summarized. Type-5 AS-external-LSAs can't be summarized - their scope is AS. +Summarizing Type-7 AS-external-LSAs isn't supported yet by Quagga. +@example +@group +router ospf + network 192.168.1.0/24 area 0.0.0.0 + network 10.0.0.0/8 area 0.0.0.10 + area 0.0.0.10 range 10.0.0.0/8 +@end group +@end example +With configuration above one Type-3 Summary-LSA with routing info 10.0.0.0/8 is +announced into backbone area if area 0.0.0.10 contains at least one intra-area +network (ie. described with router or network LSA) from this range. +@end deffn + +@deffn {OSPF Command} {area @var{a.b.c.d} range IPV4_PREFIX not-advertise} {} +@deffnx {OSPF Command} {no area @var{a.b.c.d} range IPV4_PREFIX not-advertise} {} +Instead of summarizing intra area paths filter them - ie. intra area paths from this +range are not advertised into other areas. +This command makes sense in ABR only. @end deffn -@deffn {OSPF Command} {area @var{a.b.c.d} range IPV4_PREFIX suppress} {} -@deffnx {OSPF Command} {no area @var{a.b.c.d} range IPV4_PREFIX suppress} {} @deffnx {OSPF Command} {area @var{a.b.c.d} range IPV4_PREFIX substitute IPV4_PREFIX} {} @deffnx {OSPF Command} {no area @var{a.b.c.d} range IPV4_PREFIX substitute IPV4_PREFIX} {} +Substitute summarized prefix with another prefix. +@example +@group +router ospf + network 192.168.1.0/24 area 0.0.0.0 + network 10.0.0.0/8 area 0.0.0.10 + area 0.0.0.10 range 10.0.0.0/8 substitute 11.0.0.0/8 +@end group +@end example +One Type-3 summary-LSA with routing info 11.0.0.0/8 is announced into backbone area if +area 0.0.0.10 contains at least one intra-area network (ie. described with router-LSA or +network-LSA) from range 10.0.0.0/8. +This command makes sense in ABR only. @end deffn @deffn {OSPF Command} {area @var{a.b.c.d} virtual-link @var{a.b.c.d}} {} @@ -160,12 +194,42 @@ address 192.168.1.129/25. @deffnx {OSPF Command} {area <0-4294967295> export-list NAME} {} @deffnx {OSPF Command} {no area @var{a.b.c.d} export-list NAME} {} @deffnx {OSPF Command} {no area <0-4294967295> export-list NAME} {} +Filter Type-3 summary-LSAs announced to other areas originated from intra- +area paths from specified area. +@example +@group +router ospf + network 192.168.1.0/24 area 0.0.0.0 + network 10.0.0.0/8 area 0.0.0.10 + area 0.0.0.10 export-list foo +! +access-list foo permit 10.10.0.0/16 +access-list foo deny any +@end group +@end example +With example above any intra-area paths from area 0.0.0.10 and from range +10.10.0.0/16 (for example 10.10.1.0/24 and 10.10.2.128/30) are announced into +other areas as Type-3 summary-LSA's, but any others (for example 10.11.0.0/16 +or 10.128.30.16/30) aren't. +Note, that you can't configure export-list to backbone area and this command +makes sense in ABR only. @end deffn @deffn {OSPF Command} {area @var{a.b.c.d} import-list NAME} {} @deffnx {OSPF Command} {area <0-4294967295> import-list NAME} {} @deffnx {OSPF Command} {no area @var{a.b.c.d} import-list NAME} {} @deffnx {OSPF Command} {no area <0-4294967295> import-list NAME} {} +Same as export-list, but it applies to paths announced into specified area as +Type-3 summary-LSAs. +@end deffn + +@deffn {OSPF Command} {area @var{a.b.c.d} filter-list NAME} {} +@deffnx {OSPF Command} {area <0-4294967295> filter-list NAME} {} +@deffnx {OSPF Command} {no area @var{a.b.c.d} filter-list NAME} {} +@deffnx {OSPF Command} {no area <0-4294967295> filter-list NAME} {} +If you want to filter intra area paths in both direction with same access list, +you can use filter-list command instead of export-list and import-list +commands. @end deffn @deffn {OSPF Command} {area @var{a.b.c.d} authentication} {} |