Riverbed SteelHead 3070-SD, Руководство пользователя

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48 | Configuring BGP, OSPF, Static Routing, and Route Retraction on SteelHead SD
Configuring BGP on SteelHead SD
The Branch Community option is per site and takes a community list as an argument. Every site will
have a default branch community configured. You can override the default branch community by
attaching a community list. The prefixes reported from a site are tagged with the branch community
of its own site and with the branch community of the site where the prefix is specified.
5. Specify your BGP redistribution settings:
– OSPF to BGP - Click On to enable redistribution of OSPF routes into BGP. By default,
redistribution is disabled.
Route Map - Click the search selector to select the route map. This option only applies to route
maps with the use cases: OSPF route injection in BGP or User defined route map. This option
redistributes OSPF routes in BGP using a list of IPv4 prefixes.
– Static to BGP - Click On enable redistribution of static routes into BGP. By default, redistribution
is disabled.
Route Map - Click the search selector to select the route map. This option only applies to the
route maps with the use cases: Static and connected route injection in BGP or User defined
route map. This option redistributes static and connected routes in BGP using a list of IPv4
prefixes.
– Overlay to BGP - Click On enable redistribution of overlay routes into BGP. By default,
redistribution is disabled. Configuring overlay routes takes effect immediately.
Route Map - - Click the search selector to select the route map. This option only applies to the
route maps with the use cases: Static and connected route injection in BGP or User defined
route map. This option redistributes static and connected routes in BGP using a list of IPv4
prefixes.
– Sites - Click the search selector to select the site. Overlay routes can also be redistributed based
on the sites they are reported from. If no site is chosen, the prefixes from all the sites are
redistributed. Sites can be added or removed. Any update to the route-map or the sites takes
effect in about 60 seconds.
– Connected to BGP - Click On or Off to enable redistribution of connected routes into BGP. By
default, redistribution is disabled.
Route Map - - Click the search selector to select the route map. This option only applies to the
route maps with the use cases: Static and connected route injection in BGP or User defined
route map. This option redistributes static and connected routes in BGP using a list of IPv4
prefixes.
6. Click Submit .
For details on configuring route maps, see “Configuring route maps” on page 76 .
Configuring conditional default-route originate routing
Typically, when the default-route originate attribute is configured, the default route is sent to the BGP
neighbor without any conditions. To support a conditional default-originate route, a route-map is
attached to the default route origination configuration and it is sent to the specified neighbor only when
the route map matches at least one prefix in the IP routing table.