Cisco Nexus 3000 series - Page 89

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Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, NX-OS Release5.0(3)U1(1)
Chapter 3 Configuring OSPFv2
Configuring Advanced OSPFv2
Create the necessary route maps used for redistribution.
SUMMARY STEPS
1. configure terminal
2. router ospf instance-tag
3. redistribute {bgp id | direct | eigrp id | ospf id | rip id | static} route-map map-name
4. default-information originate [always] [route-map map-name]
5. default-metric cost
6. (Optional) copy running-config startup-config
DETAILED STEPS
Command Purpose
Step 1
configure terminal
Example:
switch# configure terminal
switch(config)#
Enters configuration mode.
Step 2
router ospf instance-tag
Example:
switch(config)# router ospf 201
switch(config-router)#
Creates a new OSPFv2 instance with the configured
instance tag.
Step 3
redistribute {bgp id | direct | eigrp id
| ospf
id | rip id | static} route-map
map-name
Example:
switch(config-router)# redistribute bgp
64496 route-map FilterExternalBGP
Redistributes the selected protocol into OSPF through
the configured route map.
Note If you redistribute static routes, Cisco NX-OS
also redistributes the default static route.
Step 4
default-information originate [always]
[route-map map-name]
Example:
switch(config-router)#
default-information-originate route-map
DefaultRouteFilter
Creates a default route into this OSPF domain if the
default route exists in the RIB. Use the following
optional keywords:
• always —Always generate the default route of
0.0.0. even if the route does not exist in the RIB.
• route-map—Generate the default route if the
route map returns true.
Note This command ignores match statements in
the route map.
Step 5
default-metric cost
Example:
switch(config-router)# default-metric 25
Sets the cost metric for the redistributed routes. This
does not apply to directly connected routes. Use a
route map to set the default metric for directly
connected routes.
Step 6
copy running-config startup-config
Example:
switch(config-router)# copy
running-config startup-config
(Optional) Saves this configuration change.