HP 3500YL - Manual (Page 297)

IP Routing Features
Configuring OSPF
When OSPF is enabled and multiple, equal-cost, next-hop routes
are available for traffic destinations on different subnets, this
feature, by default, enables load-sharing among up to four next-
hop routes. The
no form of the command disables this load-
sharing so that only one route in a group of multiple, equal-
cost, next-hop routes is used for traffic that could otherwise be
load-shared across multiple routes. For example, in figure5-55
on page 5-122, the next-hop routers “B”, “C”, and “D” are
available for equal-cost load-sharing of eligible traffic.
Disabling IP load-sharing means that router “A” selects only
one next-hop router for traffic that is actually eligible for load-
sharing through different next-hop routers. (Default: Enabled
with four equal-cost, next-hop routes allowed)
Note: In the default configuration, IP load-sharing is enabled
by default. However, it has no effect unless IP routing and OSPF
are enabled.
< 1 - 4 >
Specifies the maximum number of equal-cost next hop paths
the router allows. (Range:
2 - 4; Default: 4)
Displaying the Current IP Load-Sharing Configuration
Use the show running command to view the currently active IP load-sharing
configuration, and show config to view the IP load-sharing configuration in the
startup-config file. (While in its default configuration, IP load-sharing does not
appear in the command output.) If IP load sharing is configured with non-
default settings (disabled or configured for either two or three equal-cost next-
hop paths), then the current settings are displayed in the command output.
ProCurve(config)# show running
Running configuration:
; J8697A Configuration Editor; Created on
release #K.11.00
hostname "ProCurve"
module 1 type J8702A
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged A1-A24
ip address dhcp-bootp
exit
ip load-sharing 3
access-controller vlan-base 2000
Indicates a non-default IP load-sharing configuration
allowing three equal-cost next-hop paths for routed traffic
with different subnet destinations. If the routing switch is
configured with the default IP load-sharing configuration, IP
load-sharing does not appear in the show config or show
running command output.
Figure 5-56. Displaying a Non-Default IP Load-Sharing Configuration
5-123