Riverbed SteelHead 3070-SD, User Manual

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64 | Configuring BGP, OSPF, Static Routing, and Route Retraction on SteelHead SD
Configuring OSPF with ABR on SteelHead SD
• Route map - Click the search selector and select the route map. This option applies a routing policy
based on which routes will be redistributed into OSPF.
5. Under Redistribute settings, specify your OSPF redistribution settings:
• BGP to OSPF - Click On to redistribute the routes learned from BGP into the OSPF protocol.
• Static to OSPF - Click On to redistribute static routes to OSPF.
• Overlay to OSPF - Click On to redistribute overlay routes to OSPF. Optionally, the overlay routes are
redistributed based on the sites from which they were reported. If no site is chosen, the prefixes
from all the sites are redistributed. Sites can be added or removed.
• Connected to OSPF - Click On to redistribute connected routes into OSPF.
6. Optionally, specify these settings if any of the above OSPF redistribution settings is enabled:
• Metric - Optionally, enter the cost metric that you want the route to be injected with into OSPF. The
range is 0 to 4294967295. When a metric value in a route matches this value, the route qualifies for
distribution by the router.
• Metric type - The type of external route that you want the routes to be injected as. When the type
matches the value specified, then that route is qualified to be distributed:
– Type 1 (EI) - This type includes the external cost to the destination as well as the cost (metric) to
reach the AS boundary router.
– Type 2 (E2) - This type uses only the external cost to the destination and ignores the cost
(metric) to reach the AS boundary router.
• Tag - Optionally, enter a value 32 bit value from 0 to 4294967295 that will be attached to the
routes. When a tag in route matches this value, the route qualifies for distribution by the router.
• Route map - Click the search selector and select the route map. This option applies a routing policy
based on which routes will be redistributed into OSPF.
• Sites - For Overlay to OSPF routes only. Optionally, specify the site to which this redistribution
policy applies. The overlay routes are redistributed based on the sites from which they were
reported. Only the prefixes from configured sites will be redistributed. When no site is configured,
prefixes reported from all the sites will be redistributed into the intended protocol.
7. Click Submit .
Configuring OSPF route summarization
For an OSPF area, you can filter intra-area prefixes. All routes that match the specified area range are
filtered.
To add summarization for OSPF
1. Choose Routing > OSPF.
2. Select the OSPF network.
3. Select the OSPF Summarization tab.
4. Click Add Prefix to add prefixes.