Load Balance Configuration; Load Balance Overview - Zte ZXR10 5900E Series User Manual

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C h a p t e r
Load Balance
Configuration
Table of Contents

Load Balance Overview ......................................................87

Configuring Load Balance ...................................................88
Load Balance Configuration Example ....................................88
Load Balance Maintenance and Diagnosis..............................91
Load Balance Overview
Load balance is to forward data traffic through multiple activated
links existing between equipment and to fully take use of the band-
width of multiple links. Load balance does not mean that data traf-
fic on links have same size.
Data traffic covers incoming traffic and outgoing traffic. Incoming
and outgoing traffic load balance is closely related to the route an-
nounced outside and learned by the equipment. Incoming traffic
load balance is affected by internal route announced outside by the
equipment and outgoing traffic load balance is affected by route
announced inside by the equipment. They directly affect the in-
stallation of multiple route entries reaching the destination in the
equipment forwarding table and the control of multiple routes.
ZXR10 5900E adopts route-based load balance to install multiple
reachable route entries for a destination address in the forward-
ing table through configuring the static route, routing protocol and
number of routes, thus laying foundation for load balance imple-
mentation.
ZXR10 5900E supports per-destination load balance policy. This
policy considers the source addresses and destination addresses
of packets at the same time and make the packets with the same
"source address-destination address" pair pass through the same
path (even there are multiple available paths), and the packets
with different "source address-destination address" pairs pass
through different paths. Such a policy ensures the packets with
the same "source address-destination address" pair to arrive in
order. Load balance becomes more effective if there are multiple
"source address-destination address" pairs in traffic.
Eight different paths can arrive at the destination at most in the
ZXR10 5900E. Once load balance is configured, interface traffic
becomes balanced after a period.
Confidential and Proprietary Information of ZTE CORPORATION 87