Technical data

12 ServerIron ADX Administration Guide
53-1002434-01
Managing System Functions
1
Verifying connectivity
The ping command verifies connectivity to a device. The command performs an ICMP echo test. An
ICMP Request goes to the target host, and the host sends back an ICMP Reply packet. You can
send a test packet to a host’s IP address or host name.
The ServerIronADX can ping using arbitrary source IP addresses (Src-IPs) belonging to the device.
The <source-ip-addr> was the management IP of the switch by default. You have the flexibility to
use any <source-ip-addr> belonging to the device.
To verify connectivity to a device, enter the ping command such as the following.
ServerIronADX> ping 192.22.2.33
Syntax: ping <dest-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]
The <hostname> parameter can be used only if you have already enabled the Domain Name
Server (DNS) resolver feature on the device from which you are sending the ping. See ip dns
domain-name and ip dns server-address.
The <dest-ip-addr> parameter specifies the IP address to be used as the destination of the ping
packets.
The <source-ip-addr> parameter specifies the IP address to be used as the source (origin) of the
ping packets.
The count <num> parameter specifies the number of ping packets the device sends. You can
specify from 1 – 4294967296. The default is 1.
The timeout <msec> parameter specifies the number of milliseconds the Brocade device waits for
a reply from the pinged device. You can specify a timeout from 1 – 4294967296 milliseconds.
The default is 5000 (5 seconds).
The ttl <num> parameter specifies the maximum number of hops. You can specify a TTL from 1 –
255. The default is 64.
The size <byte> parameter specifies the size of the ICMP data portion of the packet. This is the
payload and does not include the header. You can specify from 0 – 4000. The default is 16.
The no-fragment option turns on the “do not fragment” bit in the IP header of the ping packet. This
option is disabled by default.
The quiet option hides informational messages such as a summary of the ping parameters sent to
the device and instead only displays messages indicating the success or failure of the ping. This
option is disabled by default.
The verify option ensures the data in the echo packet (the reply packet) is the same as the data in
the echo request (the ping). By default the device does not verify the data.
The data <1 – 4 byte hex> parameter specifies a specific data pattern for the payload instead of
the default data pattern, “abcd”, in the packet’s data payload. The pattern repeats itself throughout
the ICMP message (payload) portion of the packet. For numeric parameter values, the CLI does not
check that the value you enter is within the allowed range. Instead, if you do exceed the range for a
numeric value, the software rounds the value to the nearest valid value.
The brief parameter causes ping test characters to be displayed. The following ping test characters
are supported:
!—Indicates that a reply was received.