Using Ping; Understanding Ping - Cisco ME 3400 Software Configuration Manual

Using Ping

Using Ping
These sections contain this information:
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Understanding Ping

The Cisco ME switch supports IP ping, which you can use to test connectivity to remote hosts. Ping
sends an echo request packet to an address and waits for a reply.
The Cisco ME switch also provides the Control Plane Security feature, which by default drops ping
response packets received on user network interfaces (UNIs) or enhanced network interfaces (ENIs).
However, methods are available to ping successfully from the switch to a host connected to a UNI or
ENI.
Control Plane Security does not drop ping response packets to or from network node interfaces (NNIs),
and no special configuration is required to enable pings to or from hosts connected to NNIs.
Using Ping
Beginning in privileged EXEC mode, use the ping command to ping another device on the network from
the switch:
Command
ping [host | address]
Ping is not supported on a UNI or ENI configured as an IEEE 802.1Q tunnel port.
Note
Ping is supported on NNIs on all software images.
It is important to note that the software images available for the switch provide different options for
pinging a host connected to a UNI or ENI:
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The next sections apply to both access ports and trunk ports.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
44-10
Understanding Ping, page 10
Using Ping, page 10
Metro IP access image that supports IP routing
Metro access image
Metro base image
Purpose
Ping a remote host by supplying the hostname or IP network
address.
Note Though other protocol keywords are available with the
ping command, they are not supported in this release.
Chapter 44 Troubleshooting
OL-9639-07