ovs-tcpundump(1) Open vSwitch Manual ovs-tcpundump(1)NAME
ovs-tcpundump - convert ``tcpdump -xx'' output to hex strings
SYNOPSIS
ovs-tcpundump < file
Common options:
[-h | --help] [-V | --version]
DESCRIPTION
The ovs-tcpundump program reads tcpdump -xx output on stdin, looking for hexadecimal packet data, and dumps each Ethernet as a single hexa-
decimal string on stdout. This format is suitable for use with the ofproto/trace command supported by ovs-vswitchd(8) via ovs-appctl(8).
At least two -x or -X options must be given, otherwise the output will omit the Ethernet header, which prevents the output from being using
with ofproto/trace.
OPTIONS -h, --help
Prints a brief help message to the console.
-V, --version
Prints version information to the console.
SEE ALSO ovs-appctl(8), ovs-vswitchd(8), ovs-pcap(1), tcpdump(8), wireshark(8).
Open vSwitch December 2010 ovs-tcpundump(1)
Check Out this Related Man Page
ovs-parse-leaks(8) Open vSwitch Manual ovs-parse-leaks(8)NAME
ovs-parse-leaks - parses OVS leak checker log files
SYNOPSIS
ovs-parse-leaks [binary] < log
DESCRIPTION
Many Open vSwitch daemons accept a --check-leaks option that writes information about memory allocation and deallocation to a log file.
ovs-parse-leaks parses log files produced by this option and prints a summary of the results. The most interesting part of the output is a
list of memory blocks that were allocated but not freed, which Open vSwitch developers can use to find and fix memory leaks.
The log file must be supplied on standard input. The binary that produced the output should be supplied as the sole non-option argument.
For best results, the binary should have debug symbols.
OPTIONS --help Prints a usage message and exits.
BUGS
The output can be hard to interpret, especially for a daemon that does not exit in normal operation. Using ovs-appctl(8) to invoke the
exit command that some Open vSwitch daemons support sometimes helps with this.
ovs-parse-leaks usually incorrectly reports one or more ``bad frees of not-allocated address'' errors at the beginning of output. These
reflect frees of data that were allocated before the leak checker was turned on during program initialization.
Open vSwitch August 2010 ovs-parse-leaks(8)
Hi,
I'm trying to use tcpdump for the first time. I installed tcpdump from the rpm. Now when I issue the command tcpdump port 6666, I get an error
tcpdump: no suitable device found
Can you tell me what's wrong there?
Thanks. (5 Replies)
Hello,
I have a client server application and the connection from client (redhat) becomes lost.
Is there a connection limit on Redhat Linux 4?
I want to use tcpdump to trace all packets between server and client: On the client side, I thought of running tcpdump. Is there a way to filter the... (4 Replies)
i would like to know about tcpdump
i would like to use tcpdump to get information about these
- Date
- time
- source hostname
- source mac address
- source ip address
- destination ip address
- see outbound only
then i use command like this
tcpdump -i le0 -n -q -tttt -e src net... (2 Replies)
Hi,
I want to capture TCPDUMP of traffic, I tried doing this but did not find success..can anyone plz correct it.
# tcpdump -s0 -vv -w /home/osuresh/test_tcp_dump host 10.12.10.22 && port 161
bash: tcpdump: command not found
# tcpdump -s0 -vv -w /home/osuresh/test_tcp_dump host... (5 Replies)
Greetings, I just started using scripting languages,
im trying to get a tcpdump in a file, change the
file name every 5mins ... this is what i have but its
not working ... any suggestions?
#!/bin/bash
# timeout.sh
#timestamp format
TIMESTAMP=`date -u "+%Y%m%dT%H%M%S"`
#tdump =`tcpdump... (3 Replies)
i am trying to write a script to parse some tcpdump output, in each line of the tcpdump output, I know for sure there are 3 keywords exist:
User{different usernamehere}
NAS_ipaddr{different ip here}
Calling_station{ip or dns name here}
But the positions for these 3 keywords in the... (4 Replies)
While executing tcpdump , i am getting following error.
tcpdump: BIOCSETIF: en0: Do not specify an existing file.
I checked with truss , and i able to see kioctl system is failed with "EEXIST"
==============================================
Message from truss output... (2 Replies)
Hi, wondering if anyone can suggest a tool to me that will let me either cut & paste hex or type it in for packet decoding.
I want to be able to decode a packet as done with tcpdump or wireshark, but I want to be able to manually input the hex myself. (2 Replies)
Please look at the third line that the windows size is 257, but in the fourth line it sends 992 bytes. Can anyone tell me why?
Thanks in advance!!!
http://life.chinaunix.net/bbsfile/month_1108/1108241440ce458925d2bb6d73.png (3 Replies)
Hello,
I've tested something like this: tcpdump -r /tmp/out.out > /tmp/out.ra 2> /dev/null
works fine - there is no status message visible.
if I place in a bash-script this line: $(tcpdump -r /tmp/out.out > /tmp/out.ra 2> /dev/null)
I get status information on executing :confused:. I... (2 Replies)
Hi,
I am using following command:
tcpdump -i eth1 icmp =8 >output.txt
i want this command to get execute for a minute only. How can we do this?
Thanks.
Please use code tags next time for your code and data. Thanks (2 Replies)
Hello;
I have this rather tricky problem to solve --(to me, anyways) ..
I am processing the following one liner with tcpdump..
tcpdump -i T3501 -A ether host 00:1e:49:29:fc:c9 or ether host 00:1b:2b:86:ec:1b or ether host 00:21:1c:98:a4:08 and net 149.83.6.0/24 | grep --line-buffered -B... (5 Replies)
Hello everyone, so I'm getting this tcpdump, and it looks like..quite a mess... Can anyone decipher this? I can tell that one IP is requesting DNS info? but I'm having trouble finding out what some of the fields actually mean..
19:44:50.707637 IP 66.81.1.252.53 > 64.147.113.139.28638: 52313... (4 Replies)