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Cisco ME 3400 User Manual

Cisco ME 3400
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44-12
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 44 Troubleshooting
Using Ping
With this configuration, a host with an IP address of 192.168.1.2 can be pinged from the switch.
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)
Summary
Keep these guidelines in mind while pinging:
IP routing is available only with the metro IP access image and is disabled by default.
To ping a host in a different IP subnetwork from the switch, you must have IP routing configured to
route between the subnets, and a static route to the destination might also be appropriate. If you need
to enable or configure IP routing, see
Chapter 35, “Configuring IP Unicast Routing.
All software versions can use a Layer 3 service policy to permit pings to and from a host connected
to a UNI or ENI. For more information about policy maps, see the
“Input and Output Policies”
section on page 33-4.
If your switch is running the metro IP access image, use one of these methods to ping a host connected
to a UNI or ENI:
Use a Layer 3 service policy to permit pings to and from a host connected to a UNI or ENI.
Enable global IP routing and configure a port as a routed port by using the no switchport interface
configuration command.

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Cisco ME 3400 Specifications

General IconGeneral
CategorySwitch
Rack MountableYes
Jumbo Frame SupportYes
Authentication MethodRADIUS, TACACS+
RAM128 MB
Flash Memory32 MB
Power DeviceInternal power supply
ModelME 3400
LayerLayer 2
MAC Address Table Size8000 entries
Remote Management ProtocolSNMP, Telnet, SSH, HTTP, HTTPS
FeaturesVLAN support, IGMP snooping, Quality of Service (QoS)
Compliant StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.3x
Memory128 MB
Power SupplyAC 120/230 V (50/60 Hz)
Dimensions (H x W x D)4.4 cm x 44.5 cm x 24.2 cm
Routing ProtocolStatic routing

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