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#HOW TO CHECK MAC ADDRESS ON CENTOS 6 DRIVERS#
#HOW TO CHECK MAC ADDRESS ON CENTOS 6 DRIVER#

Presuming that you want two bond interfaces, you must configure /etc/nf as follow: alias bond0 bonding You can use multiple bond interfaces but for that you must load the bonding module as many as there are bond links, possibly with varying options.

#HOW TO CHECK MAC ADDRESS ON CENTOS 6 DRIVER#

The bonding driver intercepts the ARP Replies sent by the local system on their way out and overwrites the source hardware address with the unique hardware address of one of the slaves in the bond such that different peers use different hardware addresses for the server. The receive load balancing is achieved by ARP negotiation.

#HOW TO CHECK MAC ADDRESS ON CENTOS 6 DRIVERS#

Prerequisite: Ethtool support in the base drivers for retrieving the speed of each slave.Īdaptive load balancing: includes balance-tlb plus receive load balancing (rlb) for IPV4 traffic, and does not require any special switch support.

If the receiving slave fails, another slave takes over the MAC address of the failed receiving slave. Incoming traffic is received by the current slave. The outgoing traffic is distributed according to the current load (computed relative to the speed) on each slave. Most switches will require some type of configuration to enable 802.3ad mode.Īdaptive transmit load balancing: channel bonding that does not require any special switch support.

A switch that supports IEEE 802.3ad Dynamic link aggregation.

Ethtool support in the base drivers for retrieving the speed and duplex of each slave.

Utilizes all slaves in the active aggregator according to the 802.3ad specification. Creates aggregation groups that share the same speed and duplex settings. This mode provides load balancing and fault tolerance.īroadcast policy: transmits everything on all slave interfaces. This selects the same slave for each destination MAC address.

The primary option affects the behavior of this mode. The bond's MAC address is externally visible on only one port (network adapter) to avoid confusing the switch. A different slave becomes active if, and only if, the active slave fails. The best documentation is on the Linux Channel Bonding Project page Īctive-backup policy: Only one slave in the bond is active. A very useful way to use bonding is to use it in connection with 802.1q VLAN support (your network equipment must have 802.1q protocol implemented). It is the best way to have a high availability network segment. You can use it wherever you need redundant links, fault tolerance or load balancing networks. That is equivalent with having one interface with three megabytes speed. For example, you can aggregate three megabits ports into a three-megabits trunk port. Bonding also allows you to create multi-gigabit pipes to transport traffic through the highest traffic areas of your network. In the following I will use the word bonding because practically we will bond interfaces as one.īonding allows you to aggregate multiple ports into a single group, effectively combining the bandwidth into a single connection.