Does S series swtich support ospf prefix suppression

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Currently Huawei S series switches do not support ospf prefix suppression

Other related questions:
Whether S series switches support OSPF
For details on whether S series switches in V200R008 and earlier versions support or do not support OSPF, see the following: �?S7700/S9700/S12700: Support �?S9300: Support �?S6720EI: Support �?S6700EI: Support �?S5720HI: Support �?S5710HI: Support �?S5700HI: Support �?S5720EI: Support �?S5710EI: Support �?S5700EI: Support �?S5720SI/S5720S-SI: Support �?S5700SI: Not support �?S5710LI: Not support �?S5700LI: Not support �?S5700S-LI: Not support �?S3700HI: Support �?S3700EI: Support �?S3700SI: Not support �?S2750EI: Not support �?S2720EI: Not support �?S2700EI: Not support �?S2710SI: Not support �?S2700SI: Not support �?S1720: Not support For details on whether S series switches in V200R008 and earlier versions support or do not support OSPFv3, see the following: �?S7700/S9700/S12700: Support �?S9300: Support �?S6720EI: Support �?S6700EI: Support �?S5720HI: Support �?S5710HI: Support �?S5700HI: Support �?S5720EI: Support �?S5710EI: Support �?S5700EI: Support �?S5720SI/S5720S-SI: Support �?S5700SI: Not support �?S5710LI: Not support �?S5700LI: Not support �?S5700S-LI: Not support �?S3700HI: Support �?S3700EI: Support �?S3700SI: Not support �?S2750EI: Not support �?S2720EI: Not support �?S2700EI: Not support �?S2710SI: Not support �?S2700SI: Not support �?S1720: Not support

Differences between suppress-time and report-suppress on an S series switch
For S series switches, suppress-time and report-suppress are irrelevant. The suppress-time parameter specifies the period during which the switch forwards only one Report/Leave message of the same multicast group after receiving a Query message. The report-suppress parameter is used to terminate Report messages from users and respond to the Query packets from routers.

Traffic suppression module of S series switch
S series switches support the configuration of traffic suppression on the interface. Flow suppression contains three modes: Packet flow rate suppression Bit rate of flow suppression Percentage flow suppression Note: the cassette switch, only partial morphological support by bit rate traffic control.

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.

Why configure OSPF virtual links on S series switches
Question: What are the functions of OSPF virtual links configured on S series switch supporting OSPF? Answer: OSPF virtual links can connect areas that are not physically connected to the backbone area to the backbone area so that these areas can route traffic normally. This function is mainly used to merge networks. Virtual links also improve network reliability by allowing normal routing after the physical connection to the backbone area is down. On actual networks, virtual links are seldom used. Generally, networks are planned properly and areas are seldom physically disconnected from the backbone areas. It is rare that networks are merged without network re-planning. In addition, virtual links are seldom used to enhance the robustness of backbone areas.

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