Enabling A Switch For Multicast Nlb - Dell S6100 Configuration Manual

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Enter the ip vlan-flooding command to specify that all Layer 3 unicast routed data traffic going through a VLAN member port

floods across all the member ports of that VLAN.

CONFIGURATION mode

ip vlan-flooding

There might be some ARP table entries that are resolved through ARP packets, which had the Ethernet MAC SA different from the

MAC information inside the ARP packet. This unicast data traffic flooding occurs only for those packets that use these ARP entries.

Enabling a Switch for Multicast NLB

To enable a switch for Multicast NLB mode, perform the following steps:

Add a static ARP entry by entering the arp ip-address multicast-mac-address command in the Global configuration

mode to associate an IP address with a multicast MAC address in the switch.

CONFIGURATION mode

arp ip-address multicast-mac-address interface

This setting causes the multicast MAC address to be mapped to the Cluster IP address for the NLB mode of operation of the switch.

While configuring static ARP for the Cluster IP, provide any one of the interfaces that is used in the static

multicast MAC configuration, where the Cluster host is connected. As the switch does not accept only one ARP-

interface pair, if you configure static ARP with each egress interface, the switch overwrites the previous egress-

interface configuration.

Associate specific MAC or hardware addresses to VLANs.

CONFIGURATION mode

mac-address-table static multicast-mac-address vlan vlan-id output-range interface

When you use the mac-address-table static multicast-mac-address command in a VLT setup, Dell

Networking OS recommends to add VLTi as one of the egress interfaces along with other cluster facing interfaces.

Microsoft Network Load Balancing