WebRTC Internals

Session Statistics

[ 32212254895 ] https://www.intern.facebook.com/videocall/incall/?peer_id=641265604&call_id=2039419132&is_ (closed) Mon Apr 02 2018 15:23:57 GMT-0700 (PDT)

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PeerConnection ID: 1522707814253010 (id=32212254895 url=https://www.intern.facebook.com/videocall/incall/?peer_id=641265604&call_id=2039419132&is_

ICE Stats

Trickled candidates (arriving after answer) are highlighted in blue
Local Candidate	Remote Candidate	Component ID	ICE State	Priority	Nominated	Selected
172.27.68.166:52102/udp(host)	172.22.149.146:64654/udp(host)	1	failed	9079290933588656000	false	false
31.13.76.86:53763/udp(relayed-udp)	172.22.149.146:64654/udp(host)	1	failed	395506427071839740	false	false
172.27.68.166:52102/udp(host)	31.13.76.86:48654/udp(relayed)	1	failed	144149272885592580	false	false
31.13.76.86:53763/udp(relayed-udp)	31.13.76.86:48654/udp(relayed)	1	succeeded	144149268825521660	true	true
31.13.76.86:44680/udp(relayed-tcp)	172.22.149.146:64654/udp(host)	1	failed	35219556393827840	false	false
31.13.76.86:43779/udp(relayed-tcp)	172.22.149.146:64654/udp(host)	1	failed	35219556393827840	false	false
31.13.76.86:44680/udp(relayed-tcp)	31.13.76.86:48654/udp(relayed)	1	succeeded	35219552233078270	true	false
31.13.76.86:43779/udp(relayed-tcp)	31.13.76.86:48654/udp(relayed)	1	cancelled	35219552233078270	false	false

ICE restarts: 0

ICE rollbacks: 0

All Raw Candidates

▼ show raw candidates

Raw Local Candidate	Raw Remote Candidate
host(IP4:172.27.68.166:52102/UDP)	candidate:3236207158 1 udp 2113937151 172.22.149.146 64654 typ host generation 0 network-id 189 network-cost 10
host(IP4:172.27.68.166:52241/TCP) active	candidate:911216436 1 udp 33562367 31.13.76.86 48654 typ relay raddr 31.13.76.86 rport 48654 generation 0 network-id 189 network-cost 10
host(IP6:[2620:10d:c083:1409:864:2e28:67ad:4dd]:52650/TCP) active
host(IP6:[2620:10d:c083:1409:864:2e28:67ad:4dd]:64248/UDP)
host(IP6:[2620:10d:c083:1409:89db:d032:d94e:7a7]:52992/TCP) active
host(IP6:[2620:10d:c083:1409:89db:d032:d94e:7a7]:64249/UDP)
turn-relay(IP4:172.27.68.166:0/TCP\|IP4:31.13.76.86:43779/UDP)
turn-relay(IP4:172.27.68.166:0/TCP\|IP4:31.13.76.86:44680/UDP)
turn-relay(IP4:172.27.68.166:52102/UDP\|IP4:31.13.76.86:53763/UDP)

SDP

Local SDP (Offer)

v=0
o=mozilla...THIS_IS_SDPARTA-60.0 1871533552507682470 0 IN IP4 0.0.0.0
s=-
t=0 0
a=sendrecv
a=fingerprint:sha-256 12:EE:C6:DA:7E:5E:FF:66:FE:26:BF:C9:12:80:F0:14:C7:27:D7:4E:6C:E0:39:A8:39:D4:50:94:5F:41:45:8E
a=group:BUNDLE audio
a=ice-options:trickle fb-force-5245
a=msid-semantic:WMS *
m=audio 53763 RTP/SAVPF 109 9 0 8 101
c=IN IP4 31.13.76.86
a=candidate:0 1 UDP 2122252543 2620:10d:c083:1409:864:2e28:67ad:4dd 64248 typ host
a=candidate:2 1 UDP 2122187007 2620:10d:c083:1409:89db:d032:d94e:7a7 64249 typ host
a=candidate:4 1 UDP 2122121471 172.27.68.166 52102 typ host
a=candidate:8 1 TCP 2105524479 2620:10d:c083:1409:864:2e28:67ad:4dd 9 typ host tcptype active
a=candidate:9 1 TCP 2105458943 2620:10d:c083:1409:89db:d032:d94e:7a7 9 typ host tcptype active
a=candidate:10 1 TCP 2105393407 172.27.68.166 9 typ host tcptype active
a=candidate:0 2 UDP 2122252542 2620:10d:c083:1409:864:2e28:67ad:4dd 52103 typ host
a=candidate:2 2 UDP 2122187006 2620:10d:c083:1409:89db:d032:d94e:7a7 52104 typ host
a=candidate:4 2 UDP 2122121470 172.27.68.166 50533 typ host
a=candidate:8 2 TCP 2105524478 2620:10d:c083:1409:864:2e28:67ad:4dd 9 typ host tcptype active
a=candidate:9 2 TCP 2105458942 2620:10d:c083:1409:89db:d032:d94e:7a7 9 typ host tcptype active
a=candidate:10 2 TCP 2105393406 172.27.68.166 9 typ host tcptype active
a=candidate:7 1 UDP 92086015 31.13.76.86 53763 typ relay raddr 31.13.76.86 rport 53763
a=candidate:11 1 UDP 8200191 31.13.76.86 44680 typ relay raddr 31.13.76.86 rport 44680
a=candidate:12 1 UDP 8200191 31.13.76.86 43779 typ relay raddr 31.13.76.86 rport 43779
a=candidate:7 2 UDP 92086014 31.13.76.86 45439 typ relay raddr 31.13.76.86 rport 45439
a=candidate:11 2 UDP 8200190 31.13.76.86 45178 typ relay raddr 31.13.76.86 rport 45178
a=candidate:12 2 UDP 8200190 31.13.76.86 57682 typ relay raddr 31.13.76.86 rport 57682
a=sendrecv
a=end-of-candidates
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=fmtp:109 maxplaybackrate=48000;stereo=1;useinbandfec=1
a=fmtp:101 0-15
a=ice-pwd:2f58abaab2dea042ca3c9267f244f85e
a=ice-ufrag:9bc35f86
a=mid:audio
a=msid:{6a1cf8d1-a466-cf4b-ad54-5940df7cce75} {b936a0b1-9733-1145-a4f0-1513f9619804}
a=rtcp:45439 IN IP4 31.13.76.86
a=rtcp-mux
a=rtpmap:109 opus/48000/2
a=rtpmap:9 G722/8000/1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=setup:actpass
a=ssrc:4111185738 cname:{91d41d13-05d1-3f4c-8898-5fc02532ee35}

Remote SDP (Answer)

v=0
o=- 937676671014647423 2 IN IP4 127.0.0.1
s=-
t=0 0
a=sendrecv
a=group:BUNDLE audio
a=msid-semantic:WMS stream_label
m=audio 1 RTP/SAVPF 109
c=IN IP4 0.0.0.0
a=candidate:3236207158 1 udp 2113937151 172.22.149.146 64654 typ host generation 0 network-id 189 network-cost 10
a=candidate:911216436 1 udp 33562367 31.13.76.86 48654 typ relay raddr 31.13.76.86 rport 48654 generation 0 network-id 189 network-cost 10
a=sendrecv
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=fingerprint:sha-256 25:C1:E0:62:54:EB:EB:07:55:9A:71:03:26:46:BF:C9:46:58:56:EF:8A:EC:3F:07:94:A6:98:72:29:6E:7F:1A
a=ice-options:fb-force-5245 fb-force-5245
a=ice-pwd:ssHvf8jVbnCoYybfcEX7oyz2
a=ice-ufrag:fnAxzPoK2bUfaRdw
a=mid:audio
a=rtcp:1 IN IP4 0.0.0.0
a=rtcp-mux
a=rtpmap:109 opus/48000/2
a=ssrc:2226573039 cname:3dN4v
a=ssrc:2226573039 msid:stream_label 14146478323527267284
a=ssrc:2226573039 mslabel:stream_label
a=ssrc:2226573039 label:14146478323527267284

RTP Stats

inbound_rtp_audio_1

Local: 15:23:57 GMT-0700 (PDT) inbound-rtp SSRC: 0

outbound_rtp_audio_0

Local: 15:23:57 GMT-0700 (PDT) outbound-rtp SSRC: 4111185738

Connection Log

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ICE(PC:1522707725738657 (id=32212254877 url=https://www.intern.facebook.com/videocall/incall/?peer_id=641265604&call_id=4213317865&is_): Skipping TURN server because of link local mis-match

/builds/worker/workspace/build/src/media/mtransport/third_party/nICEr/src/net/nr_socket_multi_tcp.c:173 function nr_socket_multi_tcp_create_stun_server_socket skipping UDP STUN server(addr:)

/builds/worker/workspace/build/src/media/mtransport/third_party/nICEr/src/net/nr_socket_multi_tcp.c:173 function nr_socket_multi_tcp_create_stun_server_socket skipping UDP STUN server(addr:IP4:31.13.76.86:40002/UDP)

/builds/worker/workspace/build/src/media/mtransport/third_party/nICEr/src/net/nr_socket_multi_tcp.c:179 function nr_socket_multi_tcp_create_stun_server_socket skipping STUN with different IP version (4) than local socket (6),

/builds/worker/workspace/build/src/media/mtransport/third_party/nICEr/src/net/nr_socket_multi_tcp.c:617 function nr_socket_multi_tcp_listen failed with error 3

ICE(PC:1522707725738657 (id=32212254877 url=https://www.intern.facebook.com/videocall/incall/?peer_id=641265604&call_id=4213317865&is_): failed to create passive TCP host candidate: 3