Brocade Communications Systems S3-1002483-03 Testing network connectivity, Pinging an IP address

3 Testing network connectivity

Testing network connectivity

After you cable the fiber optic modules, you can test connectivity to other network devices by pinging those devices. You also can perform trace routes.

To resolve problems that may arise with network connections:

•For the indicated port, verify that both ends of the cabling (at the Brocade device and the connected device) are snug.

•Verify that the Brocade device and the connected device are both powered on and operating correctly.

•Verify that you have used the correct cable type for the connection:

•For twisted-pair connections to an end node, use straight-through cabling.

•For fiber optic connections, verify that the transmit port on the device is connected to the receive port on the connected device, and that the receive port on the device is connected to the transmit port on the connected device.

•Verify that the port has not been disabled through a configuration change. You can use the CLI. If you have configured an IP address on the device, you also can use the Web management interface or IronView Network Manager.

•For copper ports, you can test the cable using Virtual Cable Testing. Refer to “Using virtual cable testing to diagnose a cable” on page 77.

•If the other procedures do not resolve the problem, try using a different port or a different cable.

Pinging an IP address

To verify that a BigIron RX Series switch can reach another device through the network, enter a command such as the following at any level of the CLI on the BigIron RX Series switch:

BigIron RX> ping 192.33.4.7

Syntax: ping <ip addr> <hostname> [source <ip addr>] [count <num>] [timeout <msec>] [ttl <num>] [size <byte>] [quiet] [numeric] [no-fragment] [verify] [data <1-to-4 byte hex>] [brief]

NOTE

If you address the ping to the IP broadcast address, the device lists the first four responses to the ping.

Tracing a route

To determine the path through which a BigIron RX Series switch can reach another network device, enter a command such as the following at any level of the CLI on the BigIron RX Series switch:

BigIron RX> traceroute 192.33.4.7

Syntax: traceroute <host-ip-addr> [maxttl <value>] [minttl <value>] [numeric] [timeout <value>] [source-ip <ip addr>]

76	Brocade BigIron RX Series Hardware Installation Guide
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