Does the S3700/S5700/S6700 support blackhole routes

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The S3700/5700 V100R005, and S3700/5700/6700 V100R006 and later versions support blackhole routes. The following command configures a blackhole route: ip route-static ip-address mask NULL 0

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Routing table capacity supported by S series switches
For information about the routing table capacity, contact Huawei iKnow.Kindly click Live Chat service for support.

How does an S series switch select the RPF route
If the longest match policy is not configured for route selection, a multicast router selects an optimal route as the RPF route based on route precedences. If the longest match policy is configured for route selection, a multicast router selects a route with the longest matched mask in RPF selection. If the masks of routes have the same length, the router selects an optimal route based on route precedences. A multicast router selects an optimal route respectively from the static multicast routing table, MBGP routing table, MIGP routing table, and unicast routing table, and then selects one route from the four routes as the RPF route. Route selection rules are as follows: - If the longest match policy is configured for route selection: 1. A route with the longest matched mask is selected from the four routes. 2. If the masks of four routes have the same length, the route with the highest preference is selected. 3. If the four routes have the same preferences, a route is selected in the order of static multicast route, MBGP route, MIGP route, and unicast route. - If the longest match policy is not configured for route selection: 1. The route with the highest preference is selected. 2. If the four routes have the same preferences, a route is selected in the order of static multicast route, MBGP route, MIGP route, and unicast route.

Does an S series switch support the multicast static route port
The switch enabled with IGMP snooping forwards multicast packets to the multicast router only through the router port after receiving IGMP Report messages. The router port is dynamically learned by the switch after the interface receives a General Query message or a PIM Hello packet from the multicast router. If the multicast router cannot send IGMP General Query messages, the router port must be statically configured. S series excluding the S1700 and E series switches support the static router port. You can use the igmp-snooping static-router-port command in the interface view.

Do the S2700&S3700&S5700&S6700 switches transparently transmit BPDUs by default
By default, the S2700&S3700&S5700&S6700 switches do not transparently transmit Bridge Protocol Data Unit (BPDUs).

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