場景
創建會話返回失敗，抓包報文如下：
POST /videoService/accounts/authorize HTTP/1.1
Host: 133.179.112.168:38498
Accept: */*
Content-Type: application/json;charset=UTF-8
Content-Length: 54
{
"clientType" : "winpc",
"userName" : "test"
}
HTTP/1.1 302 Moved Temporarily
Server: openresty/1.11.2.1
Date: Tue, 01 Dec 2020 03:19:27 GMT
Content-Type: text/html
Content-Length: 167
Connection: keep-alive
X-LC-RequestId: 8000000000000000-4f6713a0de7b1d61e26afe28064b6fa2
Location: http://133.179.113.139:6406/videoService/accounts/authorize
<html>
<head><title>302 Found</title></head>
<body bgcolor="white">
<center><h1>302 Found</h1></center>
<hr><center>openresty/1.11.2.1</center>
</body>
</html>
排查過程
1)懷疑是用戶名和密碼錯誤（其他對接平臺也在使用，排除掉這個因素）
2）IP地址確定也沒有問題
3）採用重定向的IP地址，發現連接失敗
結論
需要大華現場配合解決