Can the S2700 switch function as a gateway

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The S2700 switch cannot be used as a gateway. The S2700 is a Layer 2 switch. If it is used as a gateway, it sends all packets that need to be forwarded at Layer 3 to the CPU to forward the packets through software. 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.

Other related questions:
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.

Whether the firewall can function as a voice gateway
For details about specifications and performance, contact pre-sales support engineers.

Whether S series switches support IPSG
All S series switches except the following support IPSG: S1700 switches S2700-SI switches W series cards of S7700, S9700, and S1270 switches S9300 of earlier versions than V100R002 For switches that do not support IPSG, you can run the mac-address static vlan command to configure static MAC addresses and run the mac-address learning disable command to disable MAC address learning on interfaces to realize a function similar to IPSG.

How to connect the uplink port of the S2700 switch?
The S2700 uplink interface is divided into GE optical interfaces or GE's combo interfaces. The interfaces are connected to the upper network devices. If the GE optical interface or combo optical port to be supporting the optical modules and fiber, if it is combo electric port,it need cable.

Functions of suppress-time on S series switches
For an S series switch, to protect an upstream Layer 3 device from attacks and reduce the loads on the Layer 3 device, a Layer 2 device can suppress repeated IGMP Report and IGMP Leave messages sent from users in a VLAN. The message suppression mechanism is as follows: - After receiving and forwarding an IGMP Report/Leave message, the Layer 2 device does not forward repeated MLD Report messages to the router port within the suppression time. - If the Layer 2 device receives an IGMP General Query message or Multicast-Address-Specific message within the suppression time, it does not suppress the first IGMP Report message sent in response to the General Query message. In addition, the Layer 2 device resets the suppression timer when receiving the first IGMP Report message. suppress-time is used to set the suppression time of Report/Leave messages. By default, the suppression time for IGMP Report/Leave messages is 10s. If the suppression time is set to 0, Report/Leave messages are not discarded. The suppression function applies only to IGMPv1 and IGMPv2 Report/Leave messages and is invalid for IGMPv3 Report/Leave messages.

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