Huawei S1720 Series Configuration Guide

Data Preparation
To configure BGP4+ load balancing, you need the following data.
No. Data
1 Number of BGP4+ routes to be used for load balancing
Procedure
l Set the number of BGP4+ routes to be used for load balancing.
Perform the following steps on a BGP4+ switch:
1. Run:
system-view
The system view is displayed.
2. Run:
bgp as-number
The BGP view is displayed.
3. Run:
ipv6-family [ unicast ]
The IPv6 unicast address family view is displayed.
4. Run:
maximum load-balancing [ ebgp | ibgp ] number
The number of BGP4+ routes to be used for load balancing is set.
By default, the number of BGP4+ routes to be used for load balancing is 1, meaning
that load balancing is not implemented.
– ebgp indicates that load balancing is implemented only among EBGP routes.
– ibgp indicates that load balancing is implemented only among IBGP routes.
– If neither ebgp nor ibgp is specified, both EBGP and IBGP routes participate in
load balancing, and the number of EBGP routes to be used for load balancing is
the same as the number of IBGP routes to be used for load balancing.
NOTE
The maximum load-balancing number command cannot be configured together with the
maximum load-balancing ebgp number or maximum load-balancing ibgp number
command.
When routes with the same destination addresses carry out load balancing on the public
network, the system determines the type of optimal routes first. If the optimal routes are IBGP
routes, only IBGP routes carry out load balancing. If the optimal routes are EBGP routes, only
EBGP routes carry out load balancing. This means that load balancing cannot be implemented
among IBGP and EBGP routes with the same destination address.
5. (Optional) Run:
load-balancing as-path-ignore
The switch is configured not to compare the AS-Path attributes of the routes to be
used for load balancing.
S6700 Series Ethernet Switches
Configuration Guide - IP Routing 8 BGP4+ Configuration
Issue 01 (2012-03-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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Huawei S1720 Series Specifications

General

Operating Humidity	5% to 95% (non-condensing)
Uplink Ports	4 x GE combo ports
VLANs	4094
Power Supply	AC 100-240V, 50/60Hz
Layer 2 Features	VLAN
Layer 3 Features	Static routing
Management	SNMP
Operating Temperature	0°C to 45°C
Storage Temperature	-40°C to +70°C
Dimensions (W x D x H)	442 mm x 220 mm x 43.6 mm