HP 3500YL - Manual (Page 202)

IP Routing Features
Configuring Static IP Routes
distance Specifies the administrative distance to asso­
ciate with a static route. If not specified, this
value is set to a default of 1. For more on this
topic, refer to “Administrative Distance” on
page 5-9. (Range: 1 - 255)
tag Specifies a unique integer value for a given
ECMP set (destination, metric, distance).
The no form of the command deletes the specified route for the specified
destination next-hop pair.
The following example configures two static routes for traffic delivery and
identifies two other null routes for which traffic should be discarded instead
of forwarded.
ProCurve(config)# ip route 10.10.40.0/24 10.10.10.1
ProCurve(config)# ip route 10.10.50.128/27 10.10.10.1
ProCurve(config)# ip route 10.10.20.177/32 reject
ProCurve(config)# ip route 10.10.30.0/24 blackhole
Configures static
routes to two different
network destinations
using the same next-
hop router IP address.
Configures a null route
to drop traffic for the
device at 10.50.10.177
and return an ICMP
notification to the
sender.
Configures a null route to drop traffic for the 10.50.10.0
network without any ICMP notification to the sender.
Figure 5-7. Example of Configuring Static Routes
Configuring Equal Cost Multi-Path (ECMP) Routing for Static
IP Routes
Equal Cost Multi-Path routing allows multiple entries for routes to the same
destination. Each path has the same cost as the other paths, but a different
next-hop router. The
ip load-sharing command specifies the maximum number
of equal paths that can be configured. Values range from 2-4. See page 5-122
for more information about the
ip load-sharing command.
Figure 5-8 shows configuration of an ECMP set with routes to the same
destination but through different next-hop routers. For more information
about ECMP, see “OSPF Equal-Cost Multipath (ECMP) for Different Subnets
Available Through the Same Next-Hop Routes” on page 5-121.
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