Could you retry udp and see if it reports an error? Thanks, Florin
> On Mar 29, 2018, at 3:25 PM, Satish <[email protected]> wrote: > > Hi Florin, > > Looks like server is not successfully UP when we use UDP APP. But on TCP it > is successful. Below is the app server details. > > UDP: > vpp# show app server > Connection App > vpp# > > > TCP: > vpp# show app server > Connection App > [#0][T] 172.28.128.3:7891->0.0.0.0:0 <http://0.0.0.0:0/> ldp-2519-app > > > Thanks, > Satish. > > > On Thu, Mar 29, 2018 at 5:49 PM, Florin Coras <[email protected] > <mailto:[email protected]>> wrote: > Hi Satish, > > What does “show app server” report? > > Thanks, > Florin > > > >> On Mar 29, 2018, at 3:14 PM, Satish <[email protected] >> <mailto:[email protected]>> wrote: >> >> Hi, >> >> I am trying to use Host stack of VPP for UDP connection through VCL library. >> Server application listen on port 7891. >> >> But when i try to connect to this server, the connection is not successful >> saying (no listener). >> >> But the same app when i change to use TCP it works fine. >> >> Below is the trace info and VPP version information. Could some one please >> let me know what is >> the issue in this? Does any one tried with VCL for UDP before and succeeded? >> >> Thanks & Regards, >> Satish. >> >> >> vpp# show trace >> ------------------- Start of thread 0 vpp_main ------------------- >> Packet 1 >> >> 00:52:47:772356: dpdk-input >> GigabitEthernet0/8/0 rx queue 0 >> buffer 0x3333: current data 14, length 46, free-list 0, clone-count 0, >> totlen-nifb 0, trace 0x0 >> ext-hdr-valid >> l4-cksum-computed l4-cksum-correct l2-hdr-offset 0 >> l3-hdr-offset 14 >> PKT MBUF: port 0, nb_segs 1, pkt_len 60 >> buf_len 2176, data_len 60, ol_flags 0x0, data_off 128, phys_addr >> 0x1f8ccd40 >> packet_type 0x0 l2_len 0 l3_len 0 outer_l2_len 0 outer_l3_len 0 >> IP4: 08:00:27:02:dd:ad -> 08:00:27:f9:67:0c >> UDP: 172.28.128.5 -> 172.28.128.3 >> tos 0x00, ttl 64, length 37, checksum 0x38e9 >> fragment id 0xa99d, flags DONT_FRAGMENT >> UDP: 37797 -> 7891 >> length 17, checksum 0x63da >> 00:52:47:772392: ip4-input >> UDP: 172.28.128.5 -> 172.28.128.3 >> tos 0x00, ttl 64, length 37, checksum 0x38e9 >> fragment id 0xa99d, flags DONT_FRAGMENT >> UDP: 37797 -> 7891 >> length 17, checksum 0x63da >> 00:52:47:772396: ip4-lookup >> fib 0 dpo-idx 7 flow hash: 0x00000000 >> UDP: 172.28.128.5 -> 172.28.128.3 >> tos 0x00, ttl 64, length 37, checksum 0x38e9 >> fragment id 0xa99d, flags DONT_FRAGMENT >> UDP: 37797 -> 7891 >> length 17, checksum 0x63da >> 00:52:47:772398: ip4-local >> UDP: 172.28.128.5 -> 172.28.128.3 >> tos 0x00, ttl 64, length 37, checksum 0x38e9 >> fragment id 0xa99d, flags DONT_FRAGMENT >> UDP: 37797 -> 7891 >> length 17, checksum 0x63da >> 00:52:47:772401: ip4-udp-lookup >> UDP: src-port 37797 dst-port 7891 (no listener) >> 00:52:47:772406: ip4-icmp-error >> UDP: 172.28.128.5 -> 172.28.128.3 >> tos 0x00, ttl 64, length 37, checksum 0x38e9 >> fragment id 0xa99d, flags DONT_FRAGMENT >> UDP: 37797 -> 7891 >> length 17, checksum 0x63da >> >> >> >> vpp# show version >> vpp v18.04-rc0~482-gf6647e0 built by vagrant on localhost at Mon Mar 26 >> 23:54:12 PDT 2018 >> >> >> > > >
