[vpp-dev] fd problems when use cut-through connections

Hi there,  We are trying to use VPP cut-through feature (version 20.09).  What confuses me is why separate fifo segments  are used for each connection ?  In our case,  we  establish a lot of  cut-through connections,  and  we find that VPP send a lot of file descriptors to VCL  

Re: [vpp-dev] Newbie question: best practice for getting data from plugins? #vpp #vppcapi #vapi

Hi Hyong, It ultimately depends on what “function” does and how you plan to solve worker contention for whatever resources need to be shared. Assuming that 1) “function” must be executed asynchronously and 2) the node forwards the packets after it copies the interesting data out of them, some

[vpp-dev] Newbie question: best practice for getting data from plugins? #vpp #vppcapi #vapi

Hi, Say we will have Plugin A that needs to: 1. Receive packets at an interface 2. Update some state about received packets 3. Send the updated state to another "function" for further processing 4. Forward received packets to the next node What would be the best practice for the design of Step

Re: [vpp-dev] IPSec ESP Tunnel mode config

Thanks Neale. I will try it out. From: Neale Ranns Sent: Thursday, February 25, 2021 3:16 AM To: Govindarajan Mohandoss ; vpp-dev Cc: nd Subject: Re: [vpp-dev] IPSec ESP Tunnel mode config Hi Govind, Please see: https://wiki.fd.io/view/VPP/IPSec /neale From: Govindarajan Mohandoss

[vpp-dev] Performance of PAPI request in multi threaded VPP

Hi List, We have been using policer_add_del and classify_add_del_session in single threaded VPP (ie one main thread only) and both API were giving decent performance, but after switching to multi thread VPP the performance seems be drastically less. To test this out a small test program was

Re: [vpp-dev] Increasing NAT worker handoff frame queue size NAT_FQ_NELTS to avoid congestion drops?

Hi Elias, Thank you ! Actually I've build from binaries. Could you please provide me the link of 20.05 repository? About the line "Note that this can help with one specific kind of packet drops in VPP NAT called "congestion drops"" would mind give me instructions on how troubleshooting VPP

Re: [vpp-dev] IPSec ESP Tunnel mode config

Hi Govind, Please see: https://wiki.fd.io/view/VPP/IPSec /neale From: Govindarajan Mohandoss Date: Wednesday, 24 February 2021 at 20:34 To: Govindarajan Mohandoss , Neale Ranns , vpp-dev Cc: nd , nd Subject: RE: [vpp-dev] IPSec ESP Tunnel mode config Hi Neale, I was wrong. I did a

Re: [vpp-dev] Increasing NAT worker handoff frame queue size NAT_FQ_NELTS to avoid congestion drops?

Hi Marcos, If you are building VPP 20.05 from source then the easiest way is to simply change the value at "#define NAT_FQ_NELTS 64" in src/plugins/nat/nat.h from 64 to something larger, we have been using 512 which seems to work fine in our case. Note that this can help with one specific kind