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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter36 Troubleshooting
Using Ping

IP Routing and SVI

IP routing is only supported on UNIs when the switch is running t he m etr o IP a cce ss im age .
You can use this configuration to enable IP routing and enable pings from an SVI to a host connected to
a UNI.
Switch# configure terminal
Switch(config)# ip routing
Switch(config)# int fa0/1
Switch(config-if)# switchport access vlan 2
Switch(config-if)# no shutdown
Switch(config-if)# int vlan 2
Switch(config-if)# ip address 192.168.1.1 255.255.255.0
Switch(config-if)# end
Switch# ping 192.168.1.2
With this configuration, a host with an IP address of 192.168.1.2 ca n be p in ged fro m the sw itch .

IP Routing and Routed Port

You can use this configuration to enable IP routing, change a switchport to a routed port, and permit
pings from the switch to a connected host:
switch# configure terminal
switch(config)# int fa0/1
switch(config-if)# no switchport
switch(config-if)# ip address 192.168.1.1 255.255.255.0
switch(config-if)# no shutdown
switch(config-if)# exit
switch(config)# ip routing
switch(config)# end
switch# ping 192.168.1.2
Ping Responses
This response is typical of a successful ping to a host:
Switch# ping 72.20.52.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 172.20.52.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
Switch#
An unsuccessful ping results in this message:
Switch# ping 72.20.52.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 172.20.52.3, timeout is 2 seconds:
. . . . .
Success rate is 0 percent (0/5)