S5700交换机ETH-trunk9(GE1/0/9、GE2/0/9)接口不断UP/DOWN。

发布时间:  2017-05-20 浏览次数:  250 下载次数:  0
问题描述

1、S5720-56C-EI-48S-AC交换机V200R008C00SPC500+V200R008SPH005,2017年2月15日早上10点左右S5700交换机ETH-trunk9(GE1/0/9、GE2/0/9)接口不断UP/DOWN。

告警信息

Feb 15 2017 02:37:07 ZHZX_E9&E10_YHJR_5720 %%01IFPDT/4/IF_STATE(l)[331]:Interface GigabitEthernet2/0/9 has turned into DOWN state.

Feb 15 2017 02:37:07 ZHZX_E9&E10_YHJR_5720 %%01IFNET/4/IF_STATE(l)[332]:Interface Eth-Trunk9 has turned into DOWN state.


处理过程

步骤 1 从日志分析:每次端口震荡,均有SNMP对端口进行set操作,怀疑网管设备(IP为10.128.112.40)对网元端口进行相关操作导致   。

Feb 15 2017 02:37:07 ZHZX_E9&E10_YHJR_5720 %%01IFPDT/4/IF_STATE(l)[334]:Interface GigabitEthernet1/0/9 has turned into DOWN state.

Feb 15 2017 02:37:07 ZHZX_E9&E10_YHJR_5720 %%01SNMP/4/SNMP_MIB_SET(s)[335]:MIB node set. (UserName=%^%#W}L:Y\]LI')VJS-QVlu!}VyUPu$Xt;ON-D<r{lKLy8vMN#q!Q,epTF>SIx_K{,8PTga}VDa68F'zfE=N%^%#, SourceIP=10.128.112.40, Version=v2c, RequestId=1007623689, ifAdminStatus.180=2, VPN= )

Feb 15 2017 02:38:21 ZHZX_E9&E10_YHJR_5720 %%01IFPDT/4/IF_STATE(l)[324]:Interface GigabitEthernet1/0/9 has turned into DOWN state.

Feb 15 2017 02:38:21 ZHZX_E9&E10_YHJR_5720 %%01SNMP/4/SNMP_MIB_SET(s)[325]:MIB node set. (UserName=%^%#W}L:Y\]LI')VJS-QVlu!}VyUPu$Xt;ON-D<r{lKLy8vMN#q!Q,epTF>SIx_K{,8PTga}VDa68F'zfE=N%^%#, SourceIP=10.128.112.40, Version=v2c, RequestId=1007623764, ifAdminStatus.180=2, VPN= )

步骤 2 查询网元接口索引及SNMP节点信息确认,网管上对S5700交换机端口eth-trunk9节点下发(MIB node set)down操作。


根因

网管通过SNMP协议向交换机下发(MIB node set)端口Down操作,导致ETH-trunk9(GE1/0/9、GE2/0/9)接口不断UP/DOWN。

解决方案

需要网管侧协助排查,经确认网管设置不合理,更改参数后,故障恢复

建议与总结

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