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据4月25号交流结果，当时报{*}省口移动机房{*}有20台左右功能端存在丢包较多的情况，NEZHA监控信息如下：\r\n\r\n!image-2022-05-16-11-23-25-277.png|width=600,height=262!\r\n\r\nmonit_stream查看信息如下，初步判断为{*}单网卡流量过载(ens1f0网卡上Rx+Drop >1.2Mpps，远大于ens2f0上的152K pps){*}\r\n\r\n!image-2022-05-16-11-25-54-223.png|width=645,height=210!\r\n * 初步交流，确认当时没有新增策略，排查因为策略扫描命中率，导致丢包的原因，进一步查看NEZHA上较长时间范围内，sapp丢包曲线如下：\r\n * !image-2022-05-16-11-28-07-255.png|width=787,height=362!\r\n * 定位到一台正在丢包现场的功能端，执行monit_stream -IHs --per-stream，按线程查看sapp处理情况如下：\r\n * !image-2022-05-16-11-28-57-505.png|width=667,height=294!\r\n * 进一步判断原因为2号和12号包处理线程流量过载，两个线程drop约1.7Mpps包，比其他包处理线程正常处理的包(609K pps)高约3倍\r\n * 通过在丢包功能端对应工作线程捕包，发现异常流量基本来自相同二元组，疑似DoS：\r\n * !image-2022-05-16-11-37-13-225.png|width=901,height=183!\r\n * 小结：4月25号丢包的原因，基本判定为二元组DoS攻击->单线程分流不匀->功能端工作线程过载，建议改为四元组分流，可以缓解这种简单的DoS攻击，对于DDoS仍然存在问题","updateAuthor":{"self":"https://jira.geedge.net/rest/api/2/user?username=yangwei","name":"yangwei","key":"JIRAUSER10103","emailAddress":"yangwei@geedgenetworks.com","avatarUrls":{"48x48":"https://jira.geedge.net/secure/useravatar?ownerId=JIRAUSER10103&avatarId=10708","24x24":"https://jira.geedge.net/secure/useravatar?size=small&ownerId=JIRAUSER10103&avatarId=10708","16x16":"https://jira.geedge.net/secure/useravatar?size=xsmall&ownerId=JIRAUSER10103&avatarId=10708","32x32":"https://jira.geedge.net/secure/useravatar?size=medium&ownerId=JIRAUSER10103&avatarId=10708"},"displayName":"杨威","active":true,"timeZone":"Asia/Shanghai"},"created":"2022-05-16T11:39:08.844+0800","updated":"2022-05-16T11:39:08.844+0800"},{"self":"https://jira.geedge.net/rest/api/2/issue/27111/comment/41341","id":"41341","author":{"self":"https://jira.geedge.net/rest/api/2/user?username=yangwei","name":"yangwei","key":"JIRAUSER10103","emailAddress":"yangwei@geedgenetworks.com","avatarUrls":{"48x48":"https://jira.geedge.net/secure/useravatar?ownerId=JIRAUSER10103&avatarId=10708","24x24":"https://jira.geedge.net/secure/useravatar?size=small&ownerId=JIRAUSER10103&avatarId=10708","16x16":"https://jira.geedge.net/secure/useravatar?size=xsmall&ownerId=JIRAUSER10103&avatarId=10708","32x32":"https://jira.geedge.net/secure/useravatar?size=medium&ownerId=JIRAUSER10103&avatarId=10708"},"displayName":"杨威","active":true,"timeZone":"Asia/Shanghai"},"body":"请[~jiayimeng] 补充IDC机房环境出现丢包的详细情况","updateAuthor":{"self":"https://jira.geedge.net/rest/api/2/user?username=yangwei","name":"yangwei","key":"JIRAUSER10103","emailAddress":"yangwei@geedgenetworks.com","avatarUrls":{"48x48":"https://jira.geedge.net/secure/useravatar?ownerId=JIRAUSER10103&avatarId=10708","24x24":"https://jira.geedge.net/secure/useravatar?size=small&ownerId=JIRAUSER10103&avatarId=10708","16x16":"https://jira.geedge.net/secure/useravatar?size=xsmall&ownerId=JIRAUSER10103&avatarId=10708","32x32":"https://jira.geedge.net/secure/useravatar?size=medium&ownerId=JIRAUSER10103&avatarId=10708"},"displayName":"杨威","active":true,"timeZone":"Asia/Shanghai"},"created":"2022-05-16T11:39:52.170+0800","updated":"2022-05-16T11:39:52.170+0800"},{"self":"https://jira.geedge.net/rest/api/2/issue/27111/comment/41360","id":"41360","author":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"body":"新疆联通IDC环境有10台左右的功能端出现间断丢包现象，查看monit_device结果显示不丢包，查看monit_stream -lHs --per-stream，单线程存在分流不均导致的丢包 ，因丢包现象不持续，按线程抓包未能准确在丢包时抓取。\r\n\r\n!image-2022-05-16-16-56-18-321.png|thumbnail!\r\n\r\n查看sysinfo.log，功能端记录的链路质量显示丢包率百分之3多，\r\n\r\n!screenshot-1.png|thumbnail!\r\n\r\n根据省口处理经验，修改mrzcpd分流模式为内层四元组分流，目前修改了0.14，待观察。","updateAuthor":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"created":"2022-05-16T17:00:10.073+0800","updated":"2022-05-18T10:44:35.200+0800"},{"self":"https://jira.geedge.net/rest/api/2/issue/27111/comment/41425","id":"41425","author":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"body":"172.16.0.14修改分流模式后，未出现丢包，17日中午修改全部TSG-X分流模式为内层四元组。\r\n\r\n当前24小时内丢包情况如下。\r\n\r\n!image-2022-05-17-16-16-42-319.png|thumbnail!\r\n\r\n待明日观察今晚流量高峰期丢包情况。","updateAuthor":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"created":"2022-05-17T16:17:43.464+0800","updated":"2022-05-17T16:17:43.464+0800"},{"self":"https://jira.geedge.net/rest/api/2/issue/27111/comment/41472","id":"41472","author":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"body":"今日功能端丢包情况，几乎无丢包。\r\n\r\n!image-2022-05-18-10-41-34-224.png|thumbnail!","updateAuthor":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"created":"2022-05-18T10:41:50.778+0800","updated":"2022-05-18T10:41:50.778+0800"}],"maxResults":5,"total":5,"startAt":0},"votes":{"self":"https://jira.geedge.net/rest/api/2/issue/OMPUB-484/votes","votes":0,"hasVoted":false},"worklog":{"startAt":0,"maxResults":20,"total":0,"worklogs":[]},"assignee":{"self":"https://jira.geedge.net/rest/api/2/user?username=jiayimeng","name":"jiayimeng","key":"JIRAUSER10223","emailAddress":"jiayimeng@zdjizhi.com","avatarUrls":{"48x48":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=48","24x24":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=24","16x16":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=16","32x32":"https://www.gravatar.com/avatar/b60d1aabf7a7b02f5cb23d2f8de58b80?d=mm&s=32"},"displayName":"贾依蒙","active":true,"timeZone":"Asia/Shanghai"},"updated":"2023-03-22T11:58:05.807+0800","status":{"self":"https://jira.geedge.net/rest/api/2/status/10103","description":"这一问题被认为是完成, 这项决议是正确的。问题已关闭可以重新开放。","iconUrl":"https://jira.geedge.net/images/icons/statuses/generic.png","name":"已关闭","id":"10103","statusCategory":{"self":"https://jira.geedge.net/rest/api/2/statuscategory/3","id":3,"key":"done","colorName":"green","name":"完成"}}}}