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

Hi Yucan, Ow, if you plan to use select then yes you won’t be able to go higher. As for the limit for non cut-through sessions/fifos, memory is the only cap. Make sure to configure vcl to use a large segment, i.e., segment-size in vcl.conf. It can be larger than 4g. Regards, Florin > On

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

Thanks Florin,         I  set LDP_SID_BIT to 10 to support more cut-through sessions, but it seems that this configuration conflicts with the  FD_SETSIZE check  in ldp_init().    In addition, I would like to know are there any obstacles to allocate multiple fifo pairs in

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

Hi Yacan, Unfortunately what you found is a known scale (and somewhat performance) limitation for cut-through sessions. There is a plan to alleviate that by allocating per app pair segments (as opposed to per connection) but no ETA for it. If anybody else is interested in tackling this, let me