Two S5700SIs are deployed at the aggregation layer, which are configured in a stack. S3728EIs are deployed at the access layer. The S5700SI and S3728EI versions are both V100R005C01SPC100, and the patch version is SPH016. An access switch connects to the two aggregation switches using two physical links that are bundled into an Eth-Trunk.
When a fault occurs, the S3700 access switches are disconnected from the NMS, and the access switches fail to ping the gateway (S5700).
Services on the access switches are normal. Users connected to the access switches can obtain IP addresses, and traffic on access interfaces is normal.
The gateway can ping the S3700 successfully. After the S3700s are recovered, the NMS can manage the S3700s. However, the S3700s are disconnected from the NMS after ARP entries age out.