Network Bonding

Overview

Network bonding combines multiple network interfaces for redundancy and increased bandwidth.

Bond Modes

Mode	Name	Features
0	balance-rr	Round-robin
1	active-backup	Active/passive failover
2	balance-xor	Hash-based
3	broadcast	All ports
4	802.3ad (LACP)	Link aggregation
5	balance-tlb	Transmit load balance
6	balance-alb	Adaptive load balance

Create Bond (LACP)

# /etc/network/interfaces
auto bond0
iface bond0 inet static
    address 192.168.1.100
    netmask 255.255.255.0
    gateway 192.168.1.1
    slaves eth0 eth1
    bond-mode 4
    bond-miimon 100
    bond-lacp-rate 1
    bond-active-slaeve eth0 eth1

Verify Bond

# Check bond status
cat /proc/net/bonding/bond0
 
# Show interfaces
ip link show

Bond with Bridge

auto bond0
iface bond0 inet static
    bond-mode 4
    bond-miimon 100
 
auto vmbr0
iface vmbr0 inet static
    address 192.168.1.100
    netmask 255.255.255.0
    bridge-ports bond0
    bridge-stp off

Troubleshooting

• LACP not working: Check switch port
• No failover: Verify mode 1

See Also

• Back to Proxmox VE
• Networking
• Network-Config