Refer to the exhibit. Users from the Engineering VLAN complain that every time Business VLAN users have a network connectivity issue, the Engineering VLAN users usually have problems experiencing slow response or network connectivity problems. After troubleshooting, an unauthorized switch 2 was found. This unauthorized switch has been a regular problem, assuming the root bridge function under the spanning-tree domain and causing the Engineering VLAN to be unstable. Which three of these actions could be suggested to fix the problem?()
- A、Upgrade Spanning Tree Protocol to Rapid Spanning Tree Protocol.
- B、Change Business VLAN PCs to switch 1 and switch 4.
- C、Force the root bridge to be switch 2, instead.
- D、Adjust spanning-tree timers (max-age and forward-delay).
- E、Shut down all unused ports.
- F、Use MSTP to separate the Engineering VLAN from the Business VLAN to optimize spanning-tree convergence time within each VLAN.
正确答案:A,E,F
答案解析:有
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