03-20-2008
One more using remembering patterns
echo "hello world" | sed 's/\(.*\)/X;\1/'
X;hello world
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LEARN ABOUT CENTOS
fcping
FCPING(8) Open-FCoE Tools FCPING(8)
NAME
fcping - Fibre Channel Ping (ELS ECHO) tool
SYNOPSIS
fcping [-fqx] [ -i interval ] [ -c count ] [ -s size ] -h source target
source = interface | MAC | WWPN | FC-ID
target = -P WWPN | -N WWPN | -F FC-ID
DESCRIPTION
The fcping command performs the Fibre Channel FC-LS-2 ECHO ELS command and displays the reply. The max payload for fcping is 2108 bytes.
When no -c is given, fcping will continue until user interrupts.
OPTIONS
-f
Flood ping
-q
Quiet! just print summary
-x
Hex dump of responses
-i interval
Wait interval seconds between each ping
-c count
Stop after sending count pings
-h source
Source is interface like ethX, MAC address, WWPN, or FC-ID
-s size
Byte-length of ping request payload (max 2108)
-F FC-ID
Destination port ID
-P WWPN
Destination world-wide port name
-N WWNN
Destination world-wide node name
EXAMPLES
Sends ELS ECHO to Port FC-ID 0xbf0027 from interface n0.170 with max 3 pings.
fcping -c 3 -h n0.170 -F 0xbf0027
sending echo to 0xBF0027
echo 1 accepted 16.170 ms
echo 2 accepted 7.053 ms
echo 3 accepted 6.803 ms
3 frames sent, 3 received 0 errors, 0.000% loss, avg. rt time 10.009 ms
Sends ELS ECHO to WWNN 0x1000001B213C9DDA from interface n0.170 with max 3 pings and payload size 1500 bytes
fcping -c 3 -h n0.170 -s 1500 -N 0x1000001B213C9DDA
sending echo to 0xBF0027
echo 1 accepted 6.597 ms
echo 2 accepted 6.925 ms
echo 3 accepted 12.419 ms
3 frames sent, 3 received 0 errors, 0.000% loss, avg. rt time 8.647 ms
Sends ELS ECHO to WWNN 0x1000001B213C9DDA from interface n0.170 continuously with payload of 32 bytes and hex-dump the reply to the screen
fcping -x -h n0.170 -s 32 -N 0x1000001B213C9DDA
sending echo to 0xBF0027
echo 1 accepted 6.937 ms
response length 32
0 02000000 00000001 00010203 04050607
10 08090a0b 0c0d0e0f 10111213 14151617
echo 2 accepted 6.923 ms
response length 32
0 02000000 00000002 00010203 04050607
10 08090a0b 0c0d0e0f 10111213 14151617
echo 3 accepted 84.929 ms
response length 32
0 02000000 00000003 00010203 04050607
10 08090a0b 0c0d0e0f 10111213 14151617
SEE ALSO
fcoeadm(8)
SUPPORT
fcping is part of the fcoe-utils package, maintained through the Open-FCoE project. Resources for both developers and users can be found at
the Open-FCoE website http://open-fcoe.org/.
Open-FCoE 05/24/2011 FCPING(8)