FIGURE 7 Standard and interface routes to the same destination network
To congure a standard static IP route and a null route to the same network, enter commands such as the following.
device(config)# ip route 192.168.7.0/24 192.168.6.157/24 1
device(config)# ip route 192.168.7.0/24 null0 3
The
rst command congures a standard static route, which includes specication of the next-hop gateway. The command also gives the
standard static route a metric of 1, which causes the Layer 3 switch to always prefer this route when the route is available.
The second command congures another static route for the same destination network, but the second route is a null route. The metric
for the null route is 3, which is higher than the metric for the standard static route. If the standard static route is unavailable, the software
uses the null route.
To congure a standard static route and an interface-based route to the same destination, enter commands such as the following.
device(config)# ip route 192.168.6.0/24 ethernet 1/1/1 1
device(config)# ip route 192.168.6.0/24 192.168.8.11/24 3
The rst command congured an interface-based static route through Ethernet port 1/1/1. The command assigns a metric of 1 to this
route, causing the Layer 3 switch to always prefer this route when it is available. If the route becomes unavailable, the Layer 3 switch uses
an alternate route through the next-hop gateway 192.168.8.11/24.
Conguring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
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