Network Requirements
- After configuring the reflection group, MAC multi-port, static ARP, the packet sent by PC will be sent to all NLB servers.
Network Topology
![Networking of configuring NLB](/storage/images/Document/Maipu/dc-feature/configuring-NLB.jpg)
Figure 2-1 Networking of configuring NLB
Configuration Steps
Step 1: On Device, configure VLAN and port link type and IP address.
#On Device, create VLAN2 and 3.
Device#configure terminal
Device(config)#vlan 2,3
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#Configure the link type of port gigabitethernet0/2 to access, allow the services of VLAN2 to pass, enable interact VLAN2, and configure the IP address to 192.168.1.1/24.
Device(config)#interface gigabitethernet 0/2
Device(config-if-gigabitethernet0/2)#switchport mode access
Device(config-if-gigabitethernet0/2)#switchport access vlan 2
Device(config-if-gigabitethernet0/2)#exit
Device(config)#interface vlan 2
Device(config-if-vlan2)#ip address 192.168.1.1 255.255.255.0
Device(config-if-vlan2)#exit
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#Configure the port link type on gigabitethernet 0/3–gigabitethernet 0/5 of Device to Access, allow the services of VLAN2 to pass, enable interface VLAN2, and configure the IP address to 192.168.1.1/24 (omitted).
Step 2: Configure the reflection group.
#Configure reflection group 1, and select any port of the device to add to the reflection group.
Device(config)#serviceloop-group 1
Device (config)# interface gigabitethernet 0/6
Device(config-if-gigabitethernet0/6)#serviceloop-group 1 active
Device(config-if-gigabitethernet0/6)#exit
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Step 3: Configure MAC multi-port.
#On Device, configure MAC multi-port, and specify the egress port as gi0/3-gi0/5.
Device#configure terminal
Device(config)#mac-address multiport 02BF.1.1 vlan 3 interface gigabitethernet 0/3,0/4,0/5
Device(config)#exit
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Step 4: Configure the static ARP.
#On Device, configure the static ARP, and bind the reflection group.
Device#configure terminal
Device(config)# arp 192.168.2.2 02bf.1.1 vlan 3 serviceloop-group 1
Device(config)#exit
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Step 7: Check the result.
#View the reflection group.
Device# show serviceloop-group
serviceloop group 1
Description:
Number of ports in total: 1
serviceloop port: gigabitethernet0/6
#View the MAC multi-port.
Device# show mac-address multiport
mac vlan interface
02BF.0001.0001 3 gi0/3-0/5
#View ARP.
Device# show arp
Protocol Address Age (min) Hardware Addr Type Interface Switchport
Internet 192.168.1.1 0001.7a6a.011e ARPA vlan2
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Internet 192.168.2.1 0001.7a6a.011e ARPA vlan3
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Internet 192.168.2.2 - 02bf.0001.0001 ARPA vlan3 gigabitethernet0/3
Internet 192.168.2.2 - 02bf.0001.0001 ARPA vlan3 gigabitethernet0/4
Internet 192.168.2.2 02bf.0001.0001 ARPA vlan3
gigabitethernet0/5
#When accessing the cluster IP of NLB server from PC, each server can receive the packet.