08-14-2002
well im going to have to say that there is good news and bad news, i did run an ifconfig, all normal, i did an arp -a, and returns that there is no arp cache in the kernel, and dmesg gave all normal responce; what went on during boot, how my usb is set up. so after wondering, just now, i thought, well all signs say that there is nothing wrong with my servers, and other computers on the network are fine, it must be my switch, well i plugged my server right into the router and BAM! instantly i am back up and running, its too bad though that switch must have been the coolest thing i ever bought for my network, all i had to do was plug everything in and i was good to go, i almost hoped that it was something with the servers cause i know i could fix it, of course with the help of unix.com, well im gonna have to look at this thing and see what happend, there has been no lighting, maybe a surge fried the switch, hmm, maybe ill plug the new one into my ups. well thanks for the help, has anyone else had any switches
go bad? thanks guys.
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LEARN ABOUT CENTOS
ibv_uc_pingpong
IBV_UC_PINGPONG(1) USER COMMANDS IBV_UC_PINGPONG(1)
NAME
ibv_uc_pingpong - simple InfiniBand UC transport test
SYNOPSIS
ibv_uc_pingpong [-p port] [-d device] [-i ib port] [-s size] [-r rx depth] [-n iters] [-l sl] [-e] HOSTNAME
ibv_uc_pingpong [-p port] [-d device] [-i ib port] [-s size] [-r rx depth] [-n iters] [-l sl] [-e]
DESCRIPTION
Run a simple ping-pong test over InfiniBand via the reliable connected (RC) transport.
OPTIONS
-p, --port=PORT
use TCP port PORT for initial synchronization (default 18515)
-d, --ib-dev=DEVICE
use IB device DEVICE (default first device found)
-i, --ib-port=PORT
use IB port PORT (default port 1)
-s, --size=SIZE
ping-pong messages of size SIZE (default 4096)
-r, --rx-depth=DEPTH
post DEPTH receives at a time (default 1000)
-n, --iters=ITERS
perform ITERS message exchanges (default 1000)
-l, --sl=SL
use SL as the service level value of the QP (default 0)
-e, --events
sleep while waiting for work completion events (default is to poll for completions)
SEE ALSO
ibv_rc_pingpong(1), ibv_ud_pingpong(1), ibv_srq_pingpong(1)
AUTHORS
Roland Dreier
<rolandd@cisco.com>
BUGS
The network synchronization between client and server instances is weak, and does not prevent incompatible options from being used on the
two instances. The method used for retrieving work completions is not strictly correct, and race conditions may cause failures on some
systems.
libibverbs August 30, 2005 IBV_UC_PINGPONG(1)