Files
geedge-jira/md/OMPUB-1295.md

99 lines
4.4 KiB
Markdown
Raw Permalink Normal View History

2025-09-14 21:52:36 +00:00
# Microburst导致EtherFabric的Traffic Link TX丢包
| ID | Creation Date | Assignee | Status |
|----|----------------|----------|--------|
| OMPUB-1295 | 2024-05-20T10:50:57.000+0800 | 杨威 | 已关闭 |
---
运营商Ooredoo反馈MDY-ORD部分链路存在丢包现象使用rapid ping测试丢包率在千分之一左右。同时MYTEL也反馈其链路主要集中在YGN在高峰时间段存在BFD无法up的情况。
* 运营商反馈的各链路的丢包情况
!image-2024-05-22-10-41-39-879.png|width=779,height=318!
* 运营商在位于新加坡的PoP点向IGW路由器rapid ping的结果
!image-2024-05-22-10-44-02-318.png|width=779,height=430!
!image-2024-05-22-10-45-12-528.png|width=357,height=129!
* Ooredoo提供了在全天各时间段执行rapid ping的汇总结果自2024-5-11起至2024-5-14止可见高峰时间段100G链路丢包严重。
!image-2024-05-22-10-52-24-554.png|width=751,height=305!
此时从EF的统计结果上看该链路的利用率非常高满负荷运行下图为EF统计的链路吞吐量
!image-2024-05-22-10-53-41-781.png|width=659,height=642!
* 在Etherfabric上配置放行规则放行Ping报文后Ooredoo反馈Ping丢包的现象有显著改善。
!image-2024-05-22-10-48-47-290.png|width=276,height=263!
* 此时Etherfabric和ASW均开启了流量控制功能在EF、ASW、TSGX上均未观测到丢包。**luqiuwen** commented on *2024-05-22T12:04:48.117+0800*:
* 关闭了Etherfabric的流控功能可见在EF的链路侧接口上约有千分之一的丢包率。联系了EF的供应商供应商反馈EF链路侧TX丢包可能是由于交换芯片缓存不足无法容纳流量中的Microburst。特别是多个100GE业务侧向同一链路侧接口转发时该现象会更为明显。
!https://download.huawei.com/mdl/image/download?uuid=dd77a5d969254077a17721e8084dd28e!
[https://support.huawei.com/enterprise/en/doc/EDOC1100086962]
* 开启了MARSIO的TX限速功能配置以下参数
{code:java}
crudini --set /opt/tsg/mrzcpd/etc/mrglobal.conf device:bond en_tx_meter 1
crudini --set /opt/tsg/mrzcpd/etc/mrglobal.conf device:bond tx_meter_cir_in_Kbps 50000000
crudini --set /opt/tsg/mrzcpd/etc/mrglobal.conf device:bond tx_meter_cbs_in_KB 8192
crudini --set /opt/tsg/mrzcpd/etc/mrglobal.conf device:bond tx_meter_ebs_in_KB 131072 {code}
* 从统计上看标记为Yellow的报文计数呈现周期性上涨约10s上涨一次。考虑到重复流量识别功能中Bloom过滤器新、旧切换的周期为10s可能导致了microburst。关闭重复流量识别功能上述现象消失。
* MDY-ORD关闭了FW的重复流量识别功能UDP最大流表调整到10000EF上停用放行ICMP报文的策略后运营商反馈该站点各链路无丢包现象。
!image-2024-05-22-12-03-27-412.png!
* 目前全网各站点已进行以上修改即关闭了FW重复流量识别功能UDP流表最大数量调整到10000EF上停用ICMP报文的放行策略。
---
2025-09-14 22:26:17 +00:00
# Attachments
2025-09-14 21:52:36 +00:00
2025-09-14 22:26:17 +00:00
Attachment: image-2024-05-22-10-41-39-879.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-10-41-39-879.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58164/image-2024-05-22-10-41-39-879.png)
2025-09-14 21:52:36 +00:00
2025-09-14 22:26:17 +00:00
Attachment: image-2024-05-22-10-44-02-318.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-10-44-02-318.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58165/image-2024-05-22-10-44-02-318.png)
2025-09-14 21:52:36 +00:00
2025-09-14 22:26:17 +00:00
Attachment: image-2024-05-22-10-45-12-528.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-10-45-12-528.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58166/image-2024-05-22-10-45-12-528.png)
2025-09-14 21:52:36 +00:00
2025-09-14 22:26:17 +00:00
Attachment: image-2024-05-22-10-48-47-290.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-10-48-47-290.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58167/image-2024-05-22-10-48-47-290.png)
2025-09-14 21:52:36 +00:00
2025-09-14 22:26:17 +00:00
Attachment: image-2024-05-22-10-52-24-554.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-10-52-24-554.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58168/image-2024-05-22-10-52-24-554.png)
Attachment: image-2024-05-22-10-53-41-781.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-10-53-41-781.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58169/image-2024-05-22-10-53-41-781.png)
Attachment: image-2024-05-22-12-03-27-412.png
2025-09-14 22:27:11 +00:00
2025-09-14 22:26:17 +00:00
![image-2024-05-22-12-03-27-412.png](https://gfwleak.exec.li/admin/geedge-jira/raw/branch/master/attachment/58182/image-2024-05-22-12-03-27-412.png)
2025-09-14 21:52:36 +00:00