R211x-HP Flexfabric 11900 Layer 2 - LAN Switching Configuration Guide

Adding or modifying a blackhole MAC address entry

Step Command Remarks

1. Enter system view.

system-view N/A

2. Add or modify a blackhole

MAC address entry.

mac-address blackhole

mac-address vlan vlan-id

By default, no blackhole MAC

address entry is configured.

Make sure you have created the

VLAN.

Adding or modifying a multiport unicast MAC address entry

You can configure a multiport unicast MAC address entry to associate a unicast destination MAC

address with multiple ports, so that the frame with a destination MAC address matching the entry is

forwarded out of multiple ports. For example, in NLB unicast mode, all servers within the cluster uses the

cluster's MAC address as their own address, and frames destined for the cluster are forwarded to every

server. In this case, you can configure a multiport unicast MAC address entry on the device connected to

the group of servers. In this manner, the device forwards the frame destined for the server group through

all ports connected to the servers within the cluster.

Figure 3 NLB cluster

You can configure a multiport unicast MAC address entry globally or on an interface.

Configuring a multiport unicast MAC address entry globally

Step Command Remarks

1. Enter system view.

system-view

N/A

NLB cluster

Device