R21xx-HP FlexFabric 11900 Layer 3 IP Services Configuration Guide

[Switch-vlan10] port Ten-GigabitEthernet 4/0/2

[Switch-vlan10] port Ten-GigabitEthernet 4/0/3

[Switch-vlan10] quit

[Switch] interface vlan-interface 10

[Switch-Vlan-interface10] ip address 16.1.1.1 255.255.255.0

[Switch-Vlan-interface10] quit

# Specify an IP address for VLAN-interface 20.

[Switch] vlan 20

[Switch-vlan20] port Ten-GigabitEthernet 3/0/1

[Switch-vlan20] port Ten-GigabitEthernet 3/0/4

[Switch-vlan20] quit

[Switch] interface vlan-interface 20

[Switch-Vlan-interface20] ip address 10.0.0.1 255.255.255.0

[Switch-Vlan-interface20] quit

# Disable ARP entry check.

[Switch] undo arp check enable

# Add a static multicast MAC address entry.

[Switch] mac-address multicast 03bf-1001-0164 interface Ten-GigabitEthernet 4/0/2 Gigabi

tEthernet 4/0/3 vlan 10

Verifying the configuration

To verify NLB load balancing, enable the FTP server function of Server A and Server B. Host A and Host

B send requests to the virtual IP address and each of them logs in to a different server.

To verify NLB redundancy, disable the network interface card of Server A. Host A and Host B send

requests to the virtual IP address and both log in to the FTP server on Server B.

Multicast ARP configuration example (in IRF mode)

Network requirements

As shown in Figure 6, a small data center uses Microsoft multicast-mode NLB. Two HP 11900 switches

form an IRF fabric. To enable the switches to cooperate with NLB, perform the following configurations:

• Add Ten-GigabitEthernet 1/4/0/2 and Ten-GigabitEthernet 2/4/0/3 to VLAN 10, and specify IP

address 16.1.1.1/24 for VLAN-interface 10.

• Add Ten-GigabitEthernet 1/3/0/4 and Ten-GigabitEthernet 2/3/0/1 to VLAN 20, and specify IP

address 10.0.0.1/24 for VLAN-interface 20.

• Disable the ARP entry check function so that the switch can learn dynamic ARP entries containing

multicast MAC addresses.

• Configure a static multicast MAC address entry so that only interfaces Ten-GigabitEthernet

1/4/0/2 and Ten-GigabitEthernet 2/4/0/3 can receive multicast information.

• Specify 10.0.0.1/24 as the default gateway of Host A and Host B.

• S p e c i f y 16 .1.1.1 / 24 a s t h e d e f a u l t g a t e w a y o f S e r v e r A a n d S e r v e r B .