Command Reference Guide

202 ● ip relay address cycle 3Com Router 5000 Family and Router 6000 Family
Command Reference
ip relay address cycle
Purpose Use the ip relay address cycle command to enable the DHCP relay to
allocate servers using the load sharing approach, where the HASH algorithm applies
allowing different clients to use different DHCP servers and the same client to use the
same DHCP server so long as it is possible.
Use the undo ip relay address cycle command to enable the DHCP relay to
relay client requests to all the DHCP servers by broadcasting.
Syntax ip relay address cycle
undo ip relay address cycle
Parameters None
Default By default, broadcast applies.
Example Enable the DHCP Relay to assign servers in the load sharing approach.
[3Com] ip relay address cycle
View This command can be used in the following views:
■ System view
Description A user is assigned to a server by the DHCP relay based on its MAC address and only
when this MAC address changes may this server be different. That means, a user is
associated with only one DHCP server, but one DHCP server can be associated with
multiple users. With this mechanism, the users of a server may be unable to obtain
addresses after the server fails because they are not assigned to other servers. Two
solutions are available for addressing this problem: recover the server, or delete the
configuration of the server from the DHCP Relay to allow the Relay to assign the users
to other servers.
Related Commands ■ ip relay address (Interface view)
■ ip relay address interface (System view)