我认为这是3850的Bug,你的这个问题,可能和如下bug有关系。
cat3850 have same mac add for SVI2 and SVI13
CSCvf90710
Description
Symptom:
Have same mac address in svi2 and svi13. It makes packet forwarding mess up in some special layer 2 senario.
Switch#sh int vlan 2
Hardware is Ethernet SVI, address is 0041.d248.d9f7 (bia 0041.d248.d9f7)
Switch#sh int vlan 13
Hardware is Ethernet SVI, address is 0041.d248.d9f7 (bia 0041.d248.d9f7)
Conditions:
None
Workaround:
Not use vlan13 or vlan2 in same time.
Further Problem Description:
None
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如上信息,参考一下吧。这个问题应该不会通过软件版本去修复。
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Rps-Cheers | If it solves your problem, please mark as answer. Thanks !