38-83
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter38 Configuring IP Unicast Routing Configuring Protocol-Independent Features
Even though the router automatically learns about and configures equal-cost routes, you can control the
maximum number of parallel paths supported by an IP routing protocol in its routing tabl e. Although the
switch software allows a maximum of 32 equal-cost routes, the switch hardware will never use more than
16 paths per route.
Beginning in privileged EXEC mode, follow these steps to change the maximum number of parallel
paths installed in a routing table from the default:
Use the no maximum-paths router configuration command to restore the default value.
Configuring Static Unicast Routes
Static unicast routes are user-defined routes that cause packets moving between a source and a
destination to take a specified path. Static routes can be important if the router cannot build a route to a
particular destination and are useful for specifying a gateway of last resor t to which a ll unr out abl e
packets are sent.
Beginning in privileged EXEC mode, follow these steps to configure a static route:
Use the no ip route prefix mask {address | interface} global configuration command to remove a static
route.
The switch retains static routes until you remove them. However, you can override static routes with
dynamic routing information by assigning administrative distance values. Each dynamic routing
protocol has a default administrative distance, as listed in Table 38-14. If you want a static route to be
overridden by information from a dynamic routing protocol, set the admini strative distance of the static
route higher than that of the dynamic protocol.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 router {bgp | rip | ospf | eigrp} Enter router configuration mode.
Step3 maximum-paths maximum Set the maximum number of parallel paths for t he pro toco l rout ing
table. The range is from 1 to 16; the default is 4 for mo st IP rou tin g
protocols, but only 1 for BGP.
Step4 end Return to privileged EXEC mode.
Step5 show ip protocols Verify the setting in the Maximum path field.
Step6 copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 ip route prefix mask {address | interface} [distance] Establish a static route.
Step3 end Return to privileged EXEC mode.
Step4 show ip route Display the current state of the routing table to verify
the configuration.
Step5 copy running-config startup-config (Optional) Save your entries in the configuration file.