Riverbed SteelHead 3070-SD, Руководство пользователя

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Configuring BGP and OSPF Routing Policies on SteelHead SD | 81
Configuring route maps
Policies at the
BGP neighbor
level cont. • Tag - Optionally, enter value to be
attached to all routes. The range is from
0 to 4294967295. When a tag in a route
matches this value, the route qualifies for
distribution by the router.
• 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
• Additive - The specified community
string is added to the route’s community
string.
Default route
origination in
BGP for a
neighbor • IP list - Select a route prefix that can be
allowed or denied.
• 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.
• Tag - Optionally, enter a value from 0 to
4294967295. When a tag in a route matches
this value, the route qualifies for distribution
by the router.
• Prefix list - Select the prefix list. The injected
default route will be advertised only if the
prefix is present in the FIB. If at least one prefix
in the route-map is matched in the local
routing table, a default will be originated. For
details, see
“Creating routing IPv4 prefix lists”
on page 72 .
• 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.
• IP next hop - If On , then updates the IP
next-hop address of the routes. Enter the
IP address to be used as the next hop.
• Self address - If On , under Self address,
click On to use the self address as the
next-hop address.
• 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.
Use case Match criteria Set criteria