Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[Bug] tcpreplay goes full speed after some time #779

Closed
mikolajpod opened this issue Feb 27, 2023 · 2 comments
Closed

[Bug] tcpreplay goes full speed after some time #779

mikolajpod opened this issue Feb 27, 2023 · 2 comments
Assignees
@fklassen
Labels
bug

Comments

@mikolajpod
Copy link

mikolajpod commented Feb 27, 2023 •
edited
Loading

Hi.

I'm using the following command
tcpreplay -i ens224 -p 4800 -l 0 file.pcap
and at the begining the rate is as expected.

After some time (12-13 days) it starts to replay at full speed.

After stopping with ctrl-c (about 12 hours after going wild) it printed:
Actual: 22192758064 packets (30315118877440 bytes) sent in 1113425.57 seconds
Rated: 27226892.9 Bps, 217.81 Mbps, 19931.96 pps
Flows: 2 flows, 0.00 fps, 1710129550895712 flow packets, 0 non-flow
Statistics for network device: ens224
        Successful packets:        22192758063
        Failed packets:            0
        Truncated packets:         0
        Retried packets (ENOBUFS): 0
        Retried packets (EAGAIN):  0

TCPREPLAY VERSION:
tcpreplay version: 4.3.3 (build git:v4.3.3) (debug)
Copyright 2013-2018 by Fred Klassen - AppNeta
Copyright 2000-2012 by Aaron Turner
The entire Tcpreplay Suite is licensed under the GPLv3
Cache file supported: 04
Not compiled with libdnet.
Compiled against libpcap: 1.10.0
64 bit packet counters: enabled
Verbose printing via tcpdump: enabled
Packet editing: disabled
Fragroute engine: disabled
Injection method: PF_PACKET send()
Not compiled with netmap

OS INFO:
uname -a
Linux sycope-os 5.10.0-9-amd64 #1 SMP Debian 5.10.70-1 (2021-09-30) x86_64 GNU/Linux
(It's debian 11.1)

HARDWARE:
lspci
...
0b:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01)
13:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01)
@fklassen
Copy link
Member

This requires moving from 32 to 64 byte counters which is more of a feature than a bug. Too much for 4.4.4.

@fklassen fklassen self-assigned this Sep 3, 2023
@fklassen fklassen added the bug label Sep 3, 2023
fklassen added a commit that referenced this issue Sep 3, 2023
@fklassen
Bug #779 - honour overflow for all pps values
54bf031 
I'm not sure why PPS overflow protection was not implemented for lower rates.
This fix makes the overflow protection always available.

Also fix a compile warning.
fklassen added a commit that referenced this issue Sep 3, 2023
@fklassen
Merge pull request #821 from appneta/Bug_#779_pps_goes_full_speed_ove…
bea06a4 
…r_time

Bug #779 - honour overflow for all PPS values
@fklassen
Copy link
Member

fklassen commented Sep 3, 2023

Fixed in PR #821

@fklassen fklassen closed this as completed Sep 3, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@fklassen fklassen

Labels
bug
Projects
4.5
Status: Done
Milestone
No milestone
Development

No branches or pull requests
2 participants
@fklassen @mikolajpod