Avaya P460 Manuel D’Utilisation
Chapter 5
Avaya P460 Layer 3 Features
52
Avaya P460 Configuration Guide
Route Preferences
The routing table can contain routes from different sources. Routes to a certain
destination can be learned independently from RIP and from OSPF. At the same
time, a static route can also be configured to the same destination. While metrics are
used to choose between routes of the same protocol, protocol preferences are used
to choose between routes of different protocols.
The preferences only apply to routes for the same destination IP address and mask.
They do not override the longest-match selection. For example, a high-preference
static default route will not be preferred over a RIP route to the subnetwork of the
destination.
The following list shows P460 protocol preferences from the most to the least
preferred:
1
destination can be learned independently from RIP and from OSPF. At the same
time, a static route can also be configured to the same destination. While metrics are
used to choose between routes of the same protocol, protocol preferences are used
to choose between routes of different protocols.
The preferences only apply to routes for the same destination IP address and mask.
They do not override the longest-match selection. For example, a high-preference
static default route will not be preferred over a RIP route to the subnetwork of the
destination.
The following list shows P460 protocol preferences from the most to the least
preferred:
1
Local (directly attached network)
2
High-preference static (manually configured routes)
3
OSPF internal routes
4
RIP
5
OSPF external routes
6
Low-preference static (manually configured routes).
Define a default gateway (router)
Remove the default gateway
(router)
(router)
Delete all the dynamic routing
entries from the Routing Table
entries from the Routing Table
Display information about the IP
unicast routing table
unicast routing table
Display a routing table for a
destination address
destination address
Display the static routes
Display the number of routes
known to the switch
known to the switch
In order to...
Use the following command...