Cisco ASR 9000 Series Routing Configuration Manual page 485

Implementing OSPF
Command or Action
Example:
RRP/0/RSP0/CPU0:router(config-ospf)# router-id
192.168.4.3
Step 4 redistribute protocol [ process-id ] { level-1 | level-1-2
| level-2 } [ metric metric-value ] [ metric-type
type-value ] [ match { external [ 1 | 2 ]} [ tag tag-value
] [ route-policy policy-name ]
Example:
RP/0/RSP0/CPU0:router(config-ospf)# redistribute
bgp 100
or
RP/0/RSP0/CPU0:router(config-router)#redistribute
bgp 110
Step 5 Do one of the following:
• summary-prefix address mask [ not-advertise
] [ tag tag ]
• summary-prefix ipv6-prefix / prefix-length [
not-advertise ] [ tag tag ]
Example:
RP/0/RSP0/CPU0:router(config-ospf)# summary-prefix
10.1.0.0 255.255.0.0
or
RP/0/RSP0/CPU0:router(config-router)#
summary-prefix 2010:11:22::/32
Purpose
Note
Redistributes OSPF routes from one routing domain to another
routing domain.
or
Redistributes OSPFv3 routes from one routing domain to another
routing domain.
Note
(Optional) Creates aggregate addresses for OSPF.
or
(Optional) Creates aggregate addresses for OSPFv3.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
We recommend using a stable IPv4 address as the router
ID.
• This command causes the router to become an ASBR by
definition.
• OSPF tags all routes learned through redistribution as
external.
• The protocol and its process ID, if it has one, indicate the
protocol being redistributed into OSPF.
• The metric is the cost you assign to the external route. The
default is 20 for all protocols except BGP, whose default
metric is 1.
• The OSPF example redistributes BGP autonomous system
1, Level 1 routes into OSPF as Type 2 external routes.
• The OSPFv3 example redistributes BGP autonomous
system 1, Level 1 and 2 routes into OSPF. The external
link type associated with the default route advertised into
the OSPFv3 routing domain is the Type 1 external route.
RPL is not supported for
OSPFv3.
• This command provides external route summarization of
the non-OSPF routes.
• External ranges that are being summarized should be
contiguous. Summarization of overlapping ranges from
two different routers could cause packets to be sent to the
wrong destination.
• This command is optional. If you do not specify it, each
route is included in the link-state database and advertised
in LSAs.
Redistribute Routes into OSPF
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