Riverbed SteelHead 3070-SD, User Manual

Page: 84 / 124

84 | Configuring BGP and OSPF Routing Policies on SteelHead SD
Configuring route maps
8. Click Submit .
User defined
route map
cont. • Community - Optionally, select the
community list. A BGP route is permitted if it
belongs to the specified community string.
For details, see
“Configuring BGP path
selection” on page 45 .
• IP list - Optionally, select an IP list. When a
routes prefix address matches a prefix in the
list, then that route is qualified for distribution.
• Next hop list - Optionally, select the next-hop
prefix. When the next-hop address matches
the selected address, the route qualifies for
distribution by the router.
• Metric - Optionally, enter a value from 0 to
4294967295. When a metric value in a route
matches this value, the route qualifies for
distribution by the router.
• Metric type - When the type matches the
value specified, then that route is qualified to
be distributed:
– Type 1 - This type includes the external cost
to the destination as well as the cost (metric)
to reach the AS boundary router.
– Type 2 - This type uses only the external
cost to the destination and ignores the cost
(metric) to reach the AS boundary router.
• AS path - Click On to set the AS path for
the route. Specify the AS string as space
separated list from 1 to 4294967295. For
details, see
“Configuring BGP path
selection” on page 45 .
• Tag - If On , then the value is prepended
with the AS path of the BGP route.
• Community - In addition to the keywords
below, you can also configure numbers
in the range from 1 to 65535 and
numbers in AA:NN format where the
range for AA and NN is 1 to 65535. For
details, see
“Configuring BGP path
selection” on page 45 .
–internet
–local-AS
–no-export
• no-advertise
–internet
–local-AS
–no-export
–no-advertise
• Additive - The specified community
string is added to the route’s community
string.
Use case Match criteria Set criteria