Load Balancing: Difference between revisions
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=Introduction= | =Introduction= | ||
Load Balancing is method aiming to spread traffic across multiple links to get better link usage. This can be done one per-packet or per-connection basis. | Load Balancing is a method aiming to spread traffic across multiple links to get better link usage. This can be done one per-packet or per-connection basis. | ||
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=Methods= | =Methods= | ||
==Failover== | |||
You have Dual Wan connection and you want to create link failover? In case, link to WAN1 goes down and link to WAN2 becomes active, you simply have to configure routes: [https://wiki.mikrotik.com/wiki/Two_gateways_failover Two gateway failover] | |||
==Firewall marking== | ==Firewall marking== | ||
Revision as of 11:52, 16 May 2019
Introduction
Load Balancing is a method aiming to spread traffic across multiple links to get better link usage. This can be done one per-packet or per-connection basis.
| Method | Per-connection | Per-packet |
|---|---|---|
| Firewall marking | Yes | Yes |
| ECMP | Yes | No |
| PCC | Yes | No |
| Nth | Yes | Yes |
| Bonding | No | Yes |
| OSPF | Yes | No |
| BGP | Yes | No |
Methods
Failover
You have Dual Wan connection and you want to create link failover? In case, link to WAN1 goes down and link to WAN2 becomes active, you simply have to configure routes: Two gateway failover
Firewall marking
This method uses firewall packet marking to select one from multiple gateways.
- Per-Traffic Load Balancing
- Load Balancing over Multiple Gateways
- Manual:Load balancing multiple same subnet links
ECMP (Equal Cost Multi-Path)
This method uses multiple gateway with same cost.
PCC (Per Connection Classifier)
Nth
- NTH load balancing with masquerade
- NTH load balancing with masquerade (another approach)
- Manual:NTH in RouterOS 3.x
Bonding
Can combine multiple links to achieve: higher speed, failover, load balancing.
More detailed information about "bonding" you can find here: Manual:Interface/Bonding
OSPF
Two or more links are setup with dynamic routing protocol OSPF with equal cost. Then equal multipath routing is used.
- Manual:Routing/OSPF
- Manual:Route Selection Algorithm in RouterOS#Load balancing and dynamic routing protocols