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Configuring RDP
When an RDP interface is created, it is automatically configured with the following default parameter
values:
RDP Interface Parameter
Advertisement destination address.
Advertisement time interval defined by
maximum and minimum values.
Advertisement lifetime.
Router IP address preference level.
It is only necessary to change the above parameter values if the default value is not sufficient. The follow-
ing subsections provide information about how to configure RDP interface parameters if it is necessary to
use a different value.
Specifying an Advertisement Destination Address
Active RDP interfaces transmit advertisement packets at random intervals and in response to ICMP solici-
tation messages received from network hosts. These packets are sent to one of two supported destination
addresses: all systems multicast (224.0.0.1) or broadcast (255.255.255.255).
By default, RDP interfaces are configured to use the 224.0.0.1 as the destination address. To change the
RDP destination address, use the
example, the following command changes the destination address to the broadcast address:
-> ip router-discovery interface Marketing advertisement-address broadcast
Enter all-systems-multicast when using this command to change the destination address to 224.0.0.1. For
example:
-> ip router-discovery interface Marketing advertisement-address all-systems-
multicast
Defining the Advertisement Interval
The advertisement interval represents a range of time, in seconds, in which RDP will transmit advertise-
ment packets at random intervals. This range is defined by configuring a maximum amount of time that
RDP will not exceed before the next transmission and configuring a minimum amount of time that RDP
will observe before sending the next transmission. Both of these values are referred to as the maximum
advertisement interval and the minimum advertisement interval.
Note that when an RDP interface becomes active, it transmits 3 advertisement packets at intervals no
greater than 16 seconds. This facilitates a quick discovery of this router on the network. After these initial
transmissions, advertisements occur at random times within the advertisement interval value or in
response to solicitation messages received from network hosts.
OmniSwitch 6600 Family Network Configuration Guide
Default
All systems multicast (224.0.0.1)
Maximum = 600 seconds
Minimum = 450 seconds (0.75 * maximum value)
1800 seconds (3 * maximum value)
0
ip router-discovery interface advertisement-address
April 2006
Creating an RDP Interface
command. For
page 17-9
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