CE6850与S7706使用QSFP+<->4*SFP+高速线缆连接S7706端口频繁UP-DOWN

发布时间:  2014-04-21 浏览次数:  678 下载次数:  0
问题描述
如下图所示。CE6850-2用40GE端口拆分成4个10GE端口加入eth-trunk20,S7706-1用4个10GE端口加入eth-trunk,CE6850-2与S7706-1使用QSFP+<->4*SFP+高速线缆连接,配置正确,正常使用数月后发现网络有丢包,查看发现是因为S7706-1链路聚合端口0、1、2、3频繁UP-DOWN。
告警信息
S7706-1部分日志信息:
Apr 14 2014 09:54:39 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[499]:Interface XGigabitEthernet1/6/0/0 has turned into UP state.
Apr 14 2014 09:54:39 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[500]:Interface XGigabitEthernet1/6/0/0 has turned into DOWN state.
Apr 14 2014 09:54:38 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[501]:Interface XGigabitEthernet1/6/0/3 has turned into UP state.
Apr 14 2014 09:54:38 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[502]:Interface XGigabitEthernet1/6/0/3 has turned into DOWN state.
Apr 14 2014 09:54:37 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[503]:Interface XGigabitEthernet1/6/0/3 has turned into UP state.
Apr 14 2014 09:54:37 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[504]:Interface XGigabitEthernet1/6/0/3 has turned into DOWN state.
Apr 14 2014 09:54:37 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[505]:Interface XGigabitEthernet1/6/0/3 has turned into UP state.
Apr 14 2014 09:54:37 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[506]:Interface XGigabitEthernet1/6/0/3 has turned into DOWN state.
Apr 14 2014 09:54:36 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[507]:Interface XGigabitEthernet1/6/0/3 has turned into UP state.
Apr 14 2014 09:54:36 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[508]:Interface XGigabitEthernet1/6/0/3 has turned into DOWN state.
Apr 14 2014 09:54:34 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[509]:Interface XGigabitEthernet1/6/0/3 has turned into UP state.
Apr 14 2014 09:54:34 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[510]:Interface XGigabitEthernet1/6/0/3 has turned into DOWN state.
Apr 14 2014 09:54:33 XDWLY-CORE-SW %%01IFPDT/4/IF_STATE(l)[511]:Interface XGigabitEthernet1/6/0/1 has turned into UP state.
处理过程
1、查看是否是生成树原因造成的。没有发现问题
2、到机房后发现现场高速线缆QSFP-4SFP10G-CU5M
共4根,2根华为的。
CE6850-1 <-------------------> S7706-1 Huawei(暂未使用)
CE6850-1 <-------------------> S7706-2 非华为 (暂未使用)
CE6850-2 <-------------------> S7706-1 非华为 (有问题)
CE6850-2 <-------------------> S7706-2 Huawei (正常使用)
3、CE6850-2 ~ S7706-2使用华为线缆,端口全亮且表现正常。
4、使用现场其他几根非华为线缆替换S7706-1 ~ CE6950-2线缆,端口表现情况不一致。
对于同一根线缆来说,在S7706上接的是0、1、2、3四个端口,其中一个端口亮,没有UP-DOWN现象。将端口亮的线与不亮的端口的线调换几次后,发现最好的情况是0、1、2、3有三个端口亮且没有UP-DOWN现象,另一个端口不亮。使用其他非华为线缆更换后也是端口表现不一致。如果说是设备原因造成此问题,那么更换线缆前后设备端口表现应一致。初步怀疑是线缆问题。
5、 将CE6850-1~S7706-1线缆(Huawei)替换CE6850-2~S7706-1线缆(非华为),发现端口全亮表现正常。

结论:此故障是由于高速线缆造成的,建议客户更换原厂线缆。
根因
建议与总结

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