Does an S series switch support BGP

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BGP support varies depending on S series switches, which is listed as follows (until V200R008):
- S7700/S9700/S12700: supported
- S9300: supported
- S6720EI: supported
- S6700EI: supported
- S5720HI: supported
- S5710HI: supported
- S5700HI: supported
- S5720EI: supported
- S5710EI: supported
- S5700EI: supported
- S5720SI/S5720S-SI: supported
- S5700SI: not supported
- S5710LI: not supported
- S5700LI: not supported
- S5700S-LI: not supported
- S3700HI: supported
- S3700EI: supported
- S3700SI: not supported
- S2750EI: not supported
- S2720EI: not supported
- S2700EI: not supported
- S2710SI: not supported
- S2700SI: not supported
- S1720: not supported

BGP4+ support varies depending on S series switches, which is listed as follows (until V200R008):
- S7700/S9700/S12700: supported
- S9300: supported
- S6720EI: supported
- S6700EI: supported (V200R001 and later)
- S5720HI: supported
- S5710HI: supported
- S5700HI: supported (V200R001 and later)
- S5720EI: supported
- S5710EI: supported
- S5700EI: supported (V200R001 and later)
- S5720SI/S5720S-SI: supported
- S5700SI: not supported
- S5710LI: not supported
- S5700LI: not supported
- S5700S-LI: not supported
- S3700HI: supported (V200R001 and later)
- S3700EI: not supported
- S3700SI: not supported
- S2750EI: not supported
- S2720EI: not supported
- S2700EI: not supported
- S2710SI: not supported
- S2700SI: not supported
- S1720: not supported

Other related questions:
On S series switches, how long does it take for BGP routes to expire after the static routes imported by BGP expire
If the static routes imported by an S series switch become invalid, the routes imported in the BGP routing table will be invalidated. The route imported through the network command must be active in the local routing table. Otherwise, it cannot be imported in the BGP routing table.

Whether an S series switch supports VRRP
S600-E series switches do not support VRRP. The following lists S series switch product support for VRRP excluding S1700: - S1720: Not supported by S1720GFR; supported by S1720GW-E and S1720GWR-E - S2700: Not supported. - S3700: Not supported by SI series; supported by EI and HI series - S5700: Not supported by SI series; supported by S5720-LI and S5720S-LI, but not supported by other LI series; supported by EI and HI series - S6700: Supported - S7700: Supported - S9700: Supported - S9300: Supported - S12700: Supported

Do S series switches support GRE
The following models and versions of S series switches excluding the S1700 support GRE VPN: -Model- -Starting Version - S5710EI V200R003 (V200R006 and later versions do not support the S5710EI.) S5700HI V200R003 (V200R006 and later versions do not support the S5700HI.) S5710HI V200R003 (V200R006 and later versions do not support the S5710HI.) S5720EI V200R007C00 (V200R007C10 and later versions do not support the S5720EI.) S5720HI V200R006 S6300EI V200R005 (V200R006 and later versions do not support the S6300EI.) S6320EI V200R008 S7700 V100R003 S9700 V200 R001 S12704 V200R008 S12708/S12712 V200R005 S9300 V100R002 S9300E V200R002 Modular switches (S7700/S9700/S9300/S12700) have the following limitations: - SA series cards (excluding the ET1D2X12SSA0 card) do not support the GRE function. - In V200R005, X1E series cards and the XGE interface connecting ACU2/ET1D2IPS0S00/ET1D2FW00S00/ET1D2FW00S01/ET1D2FW00S02/LE1D2FW00S01 card do not support the GRE function. - In V200R006 and later versions, if the tunnel interface is configured with the service link function, the tunnel type, source address, and destination address configured on this interface cannot be modified.

Does an S series switch support NAT
The fixed switches do not support NAT.

How to configure BGP to import routes for S series switches
Background BGP itself cannot discover routes. Therefore, it needs to import other protocol routes, such as IGP routes, to the BGP routing table. In this manner, these imported routes can be transmitted within an AS or between ASs. BGP imports routes in either of the following ways: In import mode, BGP imports routes according to protocol types, such as RIP routes, OSPF routes, and IS-IS routes. To ensure validity of imported IGP routes, BGP can also import static routes and direct routes in import mode. In network mode, BGP imports routes in an IP routing table one by one, making it more precise than the import mode. Procedure Import mode: [HUAWEI] bgp 100 [HUAWEI-bgp] ipv4-family unicast //The IPv4 address family view is displayed. You can also enter other views as required. [HUAWEI-bgp-af-ipv4] import-rout static //Importing static routes is taken as an example. Importing routes of other protocols is similar. (Optional) Run the default-route import command to allow BGP to import the default route that already exists in the local IP routing table. By default, BGP does not add default routes to the BGP routing table. Network mode: [HUAWEI] bgp 100 [HUAWEI-bgp] ipv4-family unicast //The IPv4 address family view is displayed. You can also enter other views as required. [HUAWEI-bgp-af-ipv4] network 192.168.100.0 24 //Advertise routes to network segment 192.168.100.0 24. Precaution The network command is used to advertise exactly matched routes. That is, the routes whose destination addresses and prefix lengths exactly match the entries in the local routing table. If the network mask is not specified, routes are exactly matched according to the natural network segment. When using the undo network command to clear the existing configuration, you need to specify the correct mask.

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