Brocade Communications Systems A7990A - StorageWorks SAN Director 4/16 Blade Switch Command Reference Manual page 501

Note: Enter commands in lowercase only; mixed case is for readability.
--ping [slot/]geport -s src_ip -d dst_ip [-n num_requests] [-q service_type] [-t ttl] [-w wait_time] [-z
Pings a destination IP address from one of the source IP interfaces on the GbE port. Valid arguments
include:
Fabric OS Command Reference Manual
Publication Number: 53-1000240-01
-r committed_rate
Specifies committed rate for the date stream, in Kb/s. If specified, the
traffic generator is limited by a traffic shaper. This characterizes the end-
to-end IP path performance based on the data rate configured for a tunnel
between the same end-points. If a rate is not specified, the traffic
generator competes for uncommitted bandwidth. This operand is
optional.
-t running_time
Specifies total time to run the test traffic stream, in seconds. If not
specified, the test runs continuously until you explicitly abort the
operation with Ctrl+c. This operand is optional.
-z size
Specifies the size for each buffer handed to the TCP layer, in bytes. If not
specified, the maximum sized data buffer is used based on the outgoing
IP interface MTU. The size is the only buffer size sent to the TCP layer.
This operand is optional.
--ipperf output displays:
Sampling frequency(s)
This is the interval specified with the --ipperf command with -i option or
the default (30s).
BW
This is the bandwidth measured in the last interval. Bandwidth is defined
as the total packets and bytes sent. Note: BW represents what the FCIP
tunnel / FC application sees for throughput rather than the Ethernet on-
the-wire bytes.
WBW
This is the weighted bandwidth currently with a gain of 50%.
Loss (%)
This is the number of TCP retransmits. This number is an average rate
over the last display interval.
Delay (ms)
This is the TCP smoothed RTT and variance estimate in milliseconds.
PMTU
Path MTU; This is the largest IP-layer datagram that can be transmitted
over the end-to-end path without fragmentation. This value is measured
in bytes and includes the IP header and payload. Note: There is limited
support for black hole PMTU detection. If the Jumbo PMTU (anything
over 1500) does not work, --ipperf will try 1500 bytes (the minimum
PMTU supported for FCIP tunnels). If 1500 PMTU fails, --ipperf will
give up. There is no support for aging. During black hole PMTU
detection the BW, WBW, Loss and PMTU values printed may not be
accurate.
size]
2
portCmd
2-467