what does this mean? "2025-06-05T22:35:18.997Z ERR...
# ask-ai
a
what does this mean? "2025-06-05T223518.997Z ERROR livekit service/sip.go:596 cannot create sip participant {"room": "67b41cdafd9a488f880c2e15_sip-outbound_+13055198223_6d94b3da_6840eb970d50c92ffc012055", "sipTrunk": "ST_HxPgDFcBT8ee", "toUser": "+13055198223", "participant": "sip_+13055198223", "callID": "SCL_z62EGzkPRVgP", "fromUser": "+15736418341", "toHost": "cloneops-livekit-dev.pstn.twilio.com", "error": "size of packet larger than MTU. transaction transport error"}"
t
Thanks for reaching out, Cesar. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
The error message indicates that a data packet exceeded the Maximum Transmission Unit (MTU) size, which caused a transaction transport error. In LiveKit, when using lossy delivery mode, packets larger than 1300 bytes are fragmented into smaller packets to fit within the network MTU of 1400 bytes. However, if any fragment is lost during transmission, the entire message is lost. This could be the reason for the issue you're encountering. To resolve this, you may need to ensure that the data packets being sent are within the recommended size limit of 1300 bytes to avoid fragmentation and potential loss. Sources: Data packets | LiveKit Docs