Can low-end S series switches serve as gateways

You are not advised to use switches including the S2700 series, S5700LI, and S5700S-LI as gateways. The S2700 series, S5700LI, and S5700S-LI switches are Layer 2 switches. If they are used as gateways, they send all packets that need to be forwarded at Layer 3 to the CPU for software forwarding. This causes a high CPU usage. Because CAR parameters are configured to protect the CPU, a large number of packets are dropped, affecting forwarding of service packets. Therefore, it is recommended that you use high-end Layer 3 switches as gateways.

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