38-104
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-12247-04
Chapter 38 Configuring IP Unicast Routing
Configuring Protocol-Independent Features
Use the
no route-map
map-tag
global configuration command or the
no
match
or
no
set
route-map
configuration commands to delete an entry. Use the
no ip policy route-map
map-tag
interface
configuration command to disable PBR on an interface. Use the
no ip route-cache policy
interface
configuration command to disable fast-switching PBR. Use the no
ip local policy route-map
map-tag
global configuration command to disable policy-based routing on packets originating on the switch.
Filtering Routing Information
You can filter routing protocol information by performing the tasks described in this section.
Note
When routes are redistributed between OSPF processes, no OSPF metrics are preserved.
Setting Passive Interfaces
To prevent other routers on a local network from dynamically learning about routes, you can use the
passive-interface
router configuration command. Then routing update messages are not being sent
through a router interface. When you use this command in the OSPF protocol, the interface address that
you specify as passive appears as a stub network in the OSPF domain. OSPF routing information is
neither sent nor received through that interface.
In networks with many interfaces, you do not need to manually set them as passive. You can set all
interfaces to be passive by default by using the
passive-interface default
router configuration command.
You can then manually setting interfaces where adjacencies are desired.
Beginning in privileged EXEC mode, follow these steps to configure passive interfaces:
Step 11
end
Return to privileged EXEC mode.
Step 12
show route-map
[
map-name
]
(Optional) Display all configured route maps or only the one
specified to verify configuration.
Step 13
show ip policy
(Optional) Display policy route maps attached to interfaces.
Step 14
show ip local policy
(Optional) Display whether or not local policy routing is
enabled and, if so, the route map being used.
Step 15
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
router
{
bgp
|
rip
|
ospf
|
eigrp
}
Enter router configuration mode.
A switch running the IP base feature set supports only the
rip
keyword.
Step 3
passive-interface
interface-id
Suppress sending of routing updates through the specified Layer 3
interface.
Step 4
passive-interface default
(Optional) Set all interfaces as passive by default.
Step 5
no passive-interface
interface type
(Optional) Activate only those interfaces that need to have
adjacencies sent.
