COTP-96801：无法连接任何成员端口的Ifgrp已降级
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问题描述
- Native/untagged VLAN ports (a0a, e0a, e1c) report degraded due to L2_reachability
- Ports with VLANs, such as a0a-100 , e0a-20 or e1c-25, do NOT show degraded
- The Ethernet switch has no port-based (or untagged) VLAN configured on the corresponding link aggregation group (LAG) and member ports but only a VLAN trunk, resulting in untagged frames being discarded on these ports