To Next Page

To Previous Page

IPv4 Unicast Routing

ExtremeWare XOS 11.3 Concepts Guide

498

● Dynamic routes

● Directly attached network interfaces that are not active.

NOTE

If you define multiple default routes, the route that has the lowest metric is used. If multiple default routes have the

same lowest metric, the system picks one of the routes.

You can also configure blackhole routes—traffic to these destinations is silently dropped.

The criteria for choosing from multiple routes with the longest matching network mask is set by

choosing the relative route priorities.

Relative Route Priorities

Table 65 lists the relative priorities assigned to routes depending on the learned source of the route.

NOTE

Although these priorities can be changed, do not attempt any manipulation unless you are expertly familiar with the

possible consequences.

To change the relative route priority, use the following command:

configure iproute {ipv4} priority [rip | blackhole | bootp | ebgp | ibgp | icmp |

Table 65: Relative route priorities

Route Origin Priority

Direct 10

BlackHole 50

Static 1100

ICMP 1200

EBGP 1700

IBGP 1900

OSPFIntra 2200

OSPFInter 2300

RIP 2400

OSPFExtern1 3200

OSPFExtern2 3300

BOOTP 5000

Extreme Networks ExtremeWare XOS Guide User Manual

Questions and Answers: