Huawei Quidway NetEngine80E Configuration Manual page 869

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Issue 02 (2014-09-30)
3. Run:
ipv4-family unicast
The IPv4 unicast address family view is displayed.
4. Run:
maximum load-balancing [ ebgp | ibgp ] number
The number of BGP routes to be used for load balancing is set.
By default, the number of BGP 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:
maximum load-balancing [ ebgp | ibgp ] number
The device has been configured whether to change the next hop addresses of the routes
to be advertised to a local address.
If you run the maximum load-balancing number command, the device changes the
next hop addresses of the routes to be advertised to a local address no matter whether
the routes are used for load balancing.
If you run the maximum load-balancing [ ebgp | ibgp ] number command, the device
does not change the next hop addresses of the routes to be advertised to a local address
no matter whether the routes are used for load balancing.
6. (Optional) Run:
load-balancing as-path-ignore
The router is configured not to compare the AS_Path attributes of the routes to be used
for load balancing.
By default, the router compares the AS_Path attributes of the routes to be used for
load balancing.
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8 BGP Configuration
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