Lucent Technologies Cajun P220, Operation Manual

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Configuring IP Routing (Layer 3)
Cajun P550/P220 Switch Operation Guide 7-5
3. Click APPLY to save your changes, or CANCEL to restore previous settings.
Assigning IP Interfaces to the VLAN
After you have set up a VLAN and enabled IP Routing, create the IP interface that your
VLAN and your subnet use to communicate with each other. After creating the IP
interface, you assign it to the VLAN. If you need to create a new VLAN, refer to “Creating
and Implementing VLANs” in Chapter 11.
To create a new IP interface and assign it to a VLAN:
1. In the IP Configuration section of the Web Agent window, click Interfaces . The
IP Interfaces dialog box opens.
2. Click CREATE . The Add IP Interface dialog box opens.
3. In the Interface field, enter the Interface name.
Route Preference
by Protocol Describe the routing preferences set up according to the network
administrator’s preferences. These preferences are normally set up using a
system based on the most to least trust. For example, local routes are
normally considered to have more trust or a higher preference, while OSPF
external routes are considered to have less trust or a lower preference.
These preferences can be overridden, but careful consideration must be
given to how the preferences are set up.
Local Routes Specify a preference value for local routes.
High-Preference
Static Routes Specify a preference value for high-level static routes.
OSPF Intra-area
Routes Specify an OSPF intra-area route. A lower number indicates a lower
preference for the path.
OSPF Inter-area
Routes Specify inter-area paths to destinations in other OSPF areas. These are
discovered through the examination of received summary Link State
Advertisements (LSA). Enter a number to specify your path cost. A lower
number indicates a lower preference for the path.
OSPF External
Routes Specify AS external paths to destinations external to the Autonomous
System. These are detected through the examination of received AS
external LSAs. Enter a number to specify your path cost (preference). A
lower number indicates a lower preference for the path.
RIP Routes Specify RIP to use the hop count as a metric. Hence, to specify a preference
for a RIP route, you need to enter a lower number (path cost).
Low-Preference
Static Routes Specify a preference value for low-level static routes.
Table 7-2. IP Global Configuration Parameters (Continued)
Parameter Allows you to...