Questions tagged [tcp-offload-engine]
The tcp-offload-engine tag has no usage guidance.
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Disable TCP-Offloading {completely, generically and easily}
I want to disable tcp-offloading (TOE) on my Debian servers. I would use something like:
ethtool -K …
I have some wishes, though: is it possible to integrate it cleanly into Debian?
This reads: no rc....
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Slow upload speed for VMWare virtual machines working via pfSense
We have ProLiant DL360 Gen8 and Gen9 servers running VMWare ESXi 6.0 with virtual machines under various versions of Windows that are routed via pfSense 2.3.4-RELEASE (64-bit) with Open-VM-Tools ...
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HAPROXY ingress controller setup using mTLS with configmap with just the ingress load balancer because it's ssl offloaded. No need for backend check
I was able to achieve ssl offloading with Haproxy. So great product and appreciate that capability!
With that said, I need to doing mutual TLS but am a little confused on how that will work with the ...
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Disabled all TCP Offloading and still get 65Kb packets
I'm capturing packets in a Tensorflow two-node training. I want to capture the packet sizes over the wire (< MTU) from the hosts. Because of that, I turned off all of the offloading with ethtool. ...
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TCP checksum errors between linux apps and NICs
I'm writing an internet application and I'm at the stage of crafting my own TCP packets. Except there is a major problem. According to the TCPDUMP utility in linux, every tcp packet that I send out ...
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tcpdump: invalid cksum from client to localhost interface even after disabling offloading
I'm having a strange issue.
In linux I have two windows open. one running tcpdump and one running curl. I used curl to try to make a connection to local host and tcpdump logs invalid checksum errors. ...
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Disable TCP Offload for CentOS 7 on laptop and VPS
I can disable outgoing and incoming TCP Offload on MACOS in user's .bash_profile file:
sudo sysctl net.link.generic.system.hwcksum_tx=0
sudo sysctl net.link.generic.system.hwcksum_rx=0
This stops the ...
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How can I see whether tcp-offloading is enabled on a ubuntu server?
I would like to find out if my Ubuntu VM uses tcp-offloading to increase the performance of VXLAN encapsulation. Where can I find this information on my machine?
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What problems can the use of TOE cause?
What problems can the use of TOE cause?
As known, TOE (TCP offload engine) offloads the processing of TCP/IP stack from CPU to the NIC: https://wiki.linuxfoundation.org/networking/toe
CPU has more ...
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How does TCP offload NIC cause the TCP checksum to be invalid?
A tcpdump pcap exported and being investigated on another machine with wireshark is showing a lot of invalid TCP checksum messages. This is a known and documented phenomenon when using TCP offload ...
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Does the FreeNAS target make use of iSCSI offload cards?
When using a FreeNAS as iSCSI target, would it use the iSCSI offload engine on cards that have it, or is it an initiator-only feature?
For clarification, I want to know if a supported iSCSI offload ...
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How to check a given connection has been offloaded to network card
From what I read, some part of the tcp protocol operation can be offloaded from kernel to network card driver thanks to TOE (or GSO, LSO, LRO..).
My objective is too find if a given socket has some ...
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What are the imlications of having different TCP Chimey Offload settings?
I have a SQL Server (2008 R2) WSFC on Windows Server 2008 R2 on which I am experiencing some storage latency between the OS and SAN. The SAN admin has noted that the SAN is experiencing very little ...
CommunityBot
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tcpdump: snaplen set to 0 but still get "Packet size limited during capture"?
Due to this problem, I'm going to sniff some packets on the MySQL server backend to see what happens:
# tcpdump -vv -s0 -c 100 -i bond0 tcp port 3306 and host 192.168.3.87 -w /home/quanta/3....
CommunityBot
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Gigabit NIC with TCP offload and open driver
I'm looking for a gigabit Ethernet adapter with a TCP offload engine that will work nicely with a modern Linux kernel. Due to the way patches and updates are handled, I really need one that has an ...
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Does DisableTaskOffload disable all related LAN Adapter settings?
I have been getting problems disabling Checksum Offload in a lot of LAN adapters manually. Does setting the DisableTaskOffload value in the registry disable all of the related parameters regardless of ...
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What causes a delay of 100 ms in initiating an HTTP connection?
Settings: this is a quad CPU machine, plenty strong, not loaded at all (neither CPU nor network), the client is a Windows Server 2008 64bit, the server is a linux box.
I have four threads that are all ...
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