35-16
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 35 Configuring IP Unicast Routing
Configuring IP Addressing
Beginning in privileged EXEC mode, follow these steps to increase spanning-tree-based flooding:
To disable this feature, use the no ip forward-protocol turbo-flood global configuration command.
Monitoring and Maintaining IP Addressing
When the contents of a particular cache, table, or database have become or are suspected to be invalid,
you can remove all its contents by using the clear privileged EXEC commands.
You can display specific statistics, such as the contents of IP routing tables, caches, and databases; the
reachability of nodes; and the routing path that packets are taking through the network.
Command Purpose
Step 1
configure terminal Enter global configuration mode
Step 2
ip forward-protocol turbo-flood Use the spanning-tree database to speed up flooding of UDP datagrams.
Step 3
end Return to privileged EXEC mode.
Step 4
show running-config Verify your entry.
Step 5
copy running-config startup-config (Optional) Save your entry in the configuration file.
Ta b l e 35-2 Commands to Clear Caches, Tables, and Databases
Command Purpose
clear arp-cache Clear the IP ARP cache and the fast-switching cache.
clear host {name | *} Remove one or all entries from the hostname and the address cache.
clear ip route {network [mask] |*} Remove one or more routes from the IP routing table.
Ta b l e 35-3 Commands to Display Caches, Tables, and Databases
Command Purpose
show arp Display the entries in the ARP table.
show hosts Display the default domain name, style of lookup service, name server hosts,
and the cached list of hostnames and addresses.
show ip aliases Display IP addresses mapped to TCP ports (aliases).
show ip arp Display the IP ARP cache.
show ip interface [interface-id] Display the IP status of interfaces.
show ip irdp Display IRDP values.
show ip masks address Display the masks used for network addresses and the number of subnets
using each mask.
show ip redirects Display the address of a default gateway.
show ip route [address [mask]] | [protocol] Display the current state of the routing table.
show ip route summary Display the current state of the routing table in summary form.
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