Multicast-mode VXLAN configuration example
Network requirements
As shown in Figure 10:
Configure VXLAN 10 as a multicast-mode VXLAN on Switch A, Switch B, and Switch C to provide Layer 2 connectivity for the VMs across the network sites.
Manually establish VXLAN tunnels and assign the tunnels to VXLAN 10.
Enable remote-MAC address learning.
Figure 10: Network diagram
Table 1: IP address assignment
Device | Interface | IP address | Device | Interface | IP address |
|---|---|---|---|---|---|
Switch A: | Switch C: | ||||
VLAN-interface 11 | 11.1.1.1/24 | VLAN-interface 13 | 13.1.1.3/24 | ||
Switch D: | Switch E: | ||||
VLAN-interface 11 | 11.1.1.4/24 | VLAN-interface 13 | 13.1.1.5/24 | ||
VLAN-interface 21 | 21.1.1.4/24 | VLAN-interface 23 | 23.1.1.5/24 | ||
Switch F: | Switch G: | ||||
VLAN-interface 21 | 21.1.1.6/24 | VLAN-interface 12 | 12.1.1.7/24 | ||
VLAN-interface 22 | 22.1.1.6/24 | VLAN-interface 22 | 22.1.1.7/24 | ||
VLAN-interface 23 | 23.1.1.6/24 | Switch B: | |||
Loop 0 | 6.6.6.6/32 | VLAN-interface 12 | 12.1.1.2/24 |
Configuration procedure
Configure IP addresses and unicast routing settings:
# Assign IP addresses to interfaces, as shown in Figure 10. (Details not shown.)
# Configure OSPF on all transport network switches (Switches A through G). (Details not shown.)
Configure Switch A:
# Enable L2VPN.
<SwitchA> system-view [SwitchA] l2vpn enable
# Enable IP multicast routing.
[SwitchA] multicast routing [SwitchA-mrib] quit
# Create VSI vpna and VXLAN 10.
[SwitchA] vsi vpna [SwitchA-vsi-vpna] vxlan 10 [SwitchA-vsi-vpna-vxlan-10] quit [SwitchA-vsi-vpna] quit
# Assign an IP address to VLAN-interface 11, and enable the IGMP host feature on the interface. This interface's IP address will be the source IP address of VXLAN packets sent by the VTEP.
[SwitchA] interface vlan-interface 11 [SwitchA-Vlan-interface11] ip address 11.1.1.1 24 [SwitchA-Vlan-interface11] igmp host enable [SwitchA-Vlan-interface11] quit
# Create a VXLAN tunnel to Switch B. The tunnel interface name is Tunnel 1.
[SwitchA] interface tunnel 1 mode vxlan [SwitchA-Tunnel1] source 11.1.1.1 [SwitchA-Tunnel1] destination 12.1.1.2 [SwitchA-Tunnel1] quit
# Create a VXLAN tunnel to Switch C. The tunnel interface name is Tunnel 2.
[SwitchA] interface tunnel 2 mode vxlan [SwitchA-Tunnel2] source 11.1.1.1 [SwitchA-Tunnel2] destination 13.1.1.3 [SwitchA-Tunnel2] quit
# Assign Tunnel 1 and Tunnel 2 to VXLAN 10.
[SwitchA] vsi vpna [SwitchA-vsi-vpna] vxlan 10 [SwitchA-vsi-vpna-vxlan-10] tunnel 1 [SwitchA-vsi-vpna-vxlan-10] tunnel 2
# Configure the multicast group address and source IP address for multicast VXLAN packets.
[SwitchA-vsi-vpna-vxlan-10] group 225.1.1.1 source 11.1.1.1 [SwitchA-vsi-vpna-vxlan-10] quit [SwitchA-vsi-vpna] quit
# On Ten-GigabitEthernet 1/0/1, create Ethernet service instance 1000 to match VLAN 2.
[SwitchA] interface ten-gigabitethernet 1/0/1 [SwitchA-] service-instance 1000 [SwitchA-Ten-GigabitEthernet1/0/1-srv1000] encapsulation s-vid 2
# Map Ethernet service instance 1000 to VSI vpna.
[SwitchA--srv1000] xconnect vsi vpna [SwitchA-Ten-GigabitEthernet1/0/1-srv1000] quit [SwitchA-Ten-GigabitEthernet1/0/1] quit
Configure Switch B:
# Enable L2VPN.
<SwitchB> system-view [SwitchB] l2vpn enable
# Enable IP multicast routing.
[SwitchB] multicast routing [SwitchB-mrib] quit
# Create VSI vpna and VXLAN 10.
[SwitchB] vsi vpna [SwitchB-vsi-vpna] vxlan 10 [SwitchB-vsi-vpna-vxlan-10] quit [SwitchB-vsi-vpna] quit
# Assign an IP address to VLAN-interface 12, and enable the IGMP host feature on the interface. This interface's IP address will be the source IP address of VXLAN packets sent by the VTEP.
[SwitchB] interface vlan-interface 12 [SwitchB-Vlan-interface12] ip address 12.1.1.2 24 [SwitchB-Vlan-interface12] igmp host enable [SwitchB-Vlan-interface12] quit
# Create a VXLAN tunnel to Switch A. The tunnel interface name is Tunnel 2.
[SwitchB] interface tunnel 2 mode vxlan [SwitchB-Tunnel2] source 12.1.1.2 [SwitchB-Tunnel2] destination 11.1.1.1 [SwitchB-Tunnel2] quit
# Create a VXLAN tunnel to Switch C. The tunnel interface name is Tunnel 3.
[SwitchB] interface tunnel 3 mode vxlan [SwitchB-Tunnel3] source 12.1.1.2 [SwitchB-Tunnel3] destination 13.1.1.3 [SwitchB-Tunnel3] quit
# Assign Tunnel 2 and Tunnel 3 to VXLAN 10.
[SwitchB] vsi vpna [SwitchB-vsi-vpna] vxlan 10 [SwitchB-vsi-vpna-vxlan-10] tunnel 2 [SwitchB-vsi-vpna-vxlan-10] tunnel 3
# Configure the VXLAN multicast group address and the source IP address for VXLAN packets.
[SwitchB-vsi-vpna-vxlan-10] group 225.1.1.1 source 12.1.1.2 [SwitchB-vsi-vpna-vxlan-10] quit [SwitchB-vsi-vpna] quit
# On Ten-GigabitEthernet 1/0/1, create Ethernet service instance 1000 to match VLAN 2.
[SwitchB] interface ten-gigabitethernet 1/0/1 [SwitchB-Ten-GigabitEthernet1/0/1] service-instance 1000 [SwitchB-Ten-GigabitEthernet1/0/1-srv1000] encapsulation s-vid 2
# Map Ethernet service instance 1000 to VSI vpna.
[SwitchB-Ten-GigabitEthernet1/0/1-srv1000] xconnect vsi vpna [SwitchB-Ten-GigabitEthernet1/0/1-srv1000] quit [SwitchB-Ten-GigabitEthernet1/0/1] quit
Configure Switch C:
# Enable L2VPN.
<SwitchC> system-view [SwitchC] l2vpn enable
# Enable IP multicast routing.
[SwitchC] multicast routing [SwitchC-mrib] quit
# Create VSI vpna and VXLAN 10.
[SwitchC] vsi vpna [SwitchC-vsi-vpna] vxlan 10 [SwitchC-vsi-vpna-vxlan-10] quit [SwitchC-vsi-vpna] quit
# Assign an IP address to VLAN-interface 13, and enable the IGMP host feature on the interface. This interface's IP address will be the source IP address of VXLAN packets sent by the VTEP.
[SwitchC] interface vlan-interface 13 [SwitchC-Vlan-interface13] ip address 13.1.1.3 24 [SwitchC-Vlan-interface13] igmp host enable [SwitchC-Vlan-interface13] quit
# Create a VXLAN tunnel to Switch A. The tunnel interface name is Tunnel 1.
[SwitchC] interface tunnel 1 mode vxlan [SwitchC-Tunnel1] source 13.1.1.3 [SwitchC-Tunnel1] destination 11.1.1.1 [SwitchC-Tunnel1] quit
# Create a VXLAN tunnel to Switch B. The tunnel interface name is Tunnel 3.
[SwitchC] interface tunnel 3 mode vxlan [SwitchC-Tunnel3] source 13.1.1.3 [SwitchC-Tunnel3] destination 12.1.1.2 [SwitchC-Tunnel3] quit
# Assign Tunnel 1 and Tunnel 3 to VXLAN 10.
[SwitchC] vsi vpna [SwitchC-vsi-vpna] vxlan 10 [SwitchC-vsi-vpna-vxlan-10] tunnel 1 [SwitchC-vsi-vpna-vxlan-10] tunnel 3
# Configure the multicast group address and source IP address for VXLAN multicast packets.
[SwitchC-vsi-vpna-vxlan-10] group 225.1.1.1 source 13.1.1.3 [SwitchC-vsi-vpna-vxlan-10] quit [SwitchC-vsi-vpna] quit
# On , create Ethernet service instance 1000 to match VLAN 2.
[SwitchC] interface ten-gigabitethernet 1/0/1 [SwitchC-Ten-GigabitEthernet1/0/1] service-instance 1000 [SwitchC-Ten-GigabitEthernet1/0/1-srv1000] encapsulation s-vid 2
# Map Ethernet service instance 1000 to VSI vpna.
[SwitchC--srv1000] xconnect vsi vpna [SwitchC-Ten-GigabitEthernet1/0/1-srv1000] quit [SwitchC-Ten-GigabitEthernet1/0/1] quit
Configure Switch D:
# Enable IP multicast routing.
<SwitchD> system-view [SwitchD] multicast routing [SwitchD-mrib] quit
# Enable IGMP and PIM-SM on VLAN-interface 11.
[SwitchD] interface vlan-interface 11 [SwitchD-Vlan-interface11] igmp enable [SwitchD-Vlan-interface11] pim sm [SwitchD-Vlan-interface11] quit
# Enable PIM-SM on VLAN-interface 21.
[SwitchD] interface vlan-interface 21 [SwitchD-Vlan-interface21] pim sm [SwitchD-Vlan-interface21] quit
# Enable BIDIR-PIM.
[SwitchD] pim [SwitchD-pim] bidir-pim enable [SwitchD-pim] quit
Configure Switch E:
# Enable IP multicast routing.
<SwitchE> system-view [SwitchE] multicast routing [SwitchE-mrib] quit
# Enable IGMP and PIM-SM on VLAN-interface 13.
[SwitchE] interface vlan-interface 13 [SwitchE-Vlan-interface13] igmp enable [SwitchE-Vlan-interface13] pim sm [SwitchE-Vlan-interface13] quit
# Enable PIM-SM on VLAN-interface 23.
[SwitchE] interface vlan-interface 23 [SwitchE-Vlan-interface23] pim sm [SwitchE-Vlan-interface23] quit
# Enable BIDIR-PIM.
[SwitchE] pim [SwitchE-pim] bidir-pim enable [SwitchE-pim] quit
Configure Switch F:
# Enable IP multicast routing.
<SwitchF> system-view [SwitchF] multicast routing [SwitchF-mrib] quit
# Enable PIM-SM on VLAN-interface 21, VLAN-interface 22, VLAN-interface 23, and Loopback 0.
[SwitchF] interface vlan-interface 21 [SwitchF-Vlan-interface21] pim sm [SwitchF-Vlan-interface21] quit [SwitchF] interface vlan-interface 22 [SwitchF-Vlan-interface22] pim sm [SwitchF-Vlan-interface22] quit [SwitchF] interface vlan-interface 23 [SwitchF-Vlan-interface23] pim sm [SwitchF-Vlan-interface23] quit [SwitchF] interface loopback 0 [SwitchF-LoopBack0] pim sm [SwitchF-LoopBack0] quit
# Enable BIDIR-PIM.
[SwitchF] pim [SwitchF-pim] bidir-pim enable
# Configure VLAN-interface 22 as a candidate-BSR, and configure Loopback 0 as a candidate-RP for BIDIR-PIM.
[SwitchF-pim] c-bsr 22.1.1.6 [SwitchF-pim] c-rp 6.6.6.6 bidir [SwitchF-pim] quit
Configure Switch G:
# Enable IP multicast routing.
<SwitchG> system-view [SwitchG] multicast routing [SwitchG-mrib] quit
# Enable IGMP and PIM-SM on VLAN-interface 12.
[SwitchG] interface vlan-interface 12 [SwitchG-Vlan-interface12] igmp enable [SwitchG-Vlan-interface12] pim sm [SwitchG-Vlan-interface12] quit
# Enable PIM-SM on VLAN-interface 22.
[SwitchG] interface vlan-interface 22 [SwitchG-Vlan-interface22] pim sm [SwitchG-Vlan-interface22] quit
# Enable BIDIR-PIM.
[SwitchG] pim [SwitchG-pim] bidir-pim enable [SwitchG-pim] quit
Verifying the configuration
Verify the VXLAN settings on the VTEPs. This example uses Switch A.
# Verify that the VXLAN tunnel interfaces on the VTEP are up.
[SwitchA] display interface tunnel 1 Tunnel1 Current state: UP Line protocol state: UP Description: Tunnel1 Interface Bandwidth: 64 kbps Maximum transmission unit: 1464 Internet protocol processing: Disabled Last clearing of counters: Never Tunnel source 11.1.1.1, destination 12.1.1.2 Tunnel protocol/transport UDP_VXLAN/IP Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec Input: 0 packets, 0 bytes, 0 drops Output: 0 packets, 0 bytes, 0 drops
# Verify that the VXLAN tunnels have been assigned to the VXLAN.
[SwitchA] display l2vpn vsi verbose VSI Name: vpna VSI Index : 0 VSI State : Up MTU : 1500 Bandwidth : Unlimited Broadcast Restrain : Unlimited Multicast Restrain : Unlimited Unknown Unicast Restrain: Unlimited MAC Learning : Enabled MAC Table Limit : - MAC Learning rate : - Drop Unknown : - Flooding : Enabled Statistics : Disabled VXLAN ID : 10 Tunnels: Tunnel Name Link ID State Type Flood proxy Tunnel1 0x5000001 Up Manual Disabled Tunnel2 0x5000002 Up Manual Disabled MTunnel0 0x6000000 Up Auto Disabled ACs: AC Link ID State Type XGE1/0/1 srv1000 0 Up Manual# Verify that the VTEP has learned the MAC addresses of remote VMs.
<SwitchA> display l2vpn mac-address MAC Address State VSI Name Link ID/Name Aging cc3e-5f9c-6cdb Dynamic vpna Tunnel1 Aging cc3e-5f9c-23dc Dynamic vpna Tunnel2 Aging --- 2 mac address(es) found ---
# Verify that the VTEP has joined the VXLAN multicast group on VLAN-interface 11.
<SwitchA> display igmp host group IGMP host groups in total: 1 Vlan-interface11(11.1.1.1): IGMP host groups in total: 1 Group address Member state Expires 225.1.1.1 Idle Off
Verify that VM 1, VM 2, and VM 3 can ping each other. (Details not shown.)