Management Features - Brocade Communications Systems RFS6000 System Reference Manual

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DHCP User Class Options
A DHCP Server groups clients based on defined user-class option values. Clients with a defined set
of user-class values are segregated by class. The DHCP Server can associate multiple classes to
each pool. Each class in a pool is assigned an exclusive range of IP addresses.
DHCP clients are compared against classes. If the client matches one of the classes assigned to
the pool, it receives an IP address from the range assigned to the class. If the client doesn't match
any of the classes in the pool, it receives an IP address from a default pool range (if defined).
Multiple IP addresses for a single VLAN allow the configuration of multiple IP addresses, each
belonging to different subnet. Class configuration allows a DHCP client to obtain an address from
the first pool to which the class is assigned. For more information, see
Class on page
DDNS
Dynamic DNS (DDNS) keeps a domain name linked to a changing IP address. Typically, when a user
connects to a network, the user's ISP assigns it an unused IP address from a pool of IP addresses.
This address is only valid for a short period. Dynamically assigning IP addresses increases the pool
of assignable IP addresses. DNS maintains a database to map a given name to an IP address used
for communication on the Internet. The dynamic assignment of IP addresses makes it necessary to
update the DNS database to reflect the current IP address for a given name. Dynamic DNS updates
the DNS database to reflect the correct mapping of a given name to an IP address.
VLAN Enhancements
The switch has incorporated the following VLAN enhancements:
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Interface Management
The switch's physical interfaces auto-negotiate speed and duplex. The switch also allows:
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Management Features

The switch supports the following management features:
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Network interfaces operate in either trunk or access modes.
A network interface in access mode can only send and receive untagged packets.
A trunk port can now receive both tagged and untagged packets. Each ethernet port is
assigned a native VLAN.
You can now configure a set of allowed VLANs on a trunk port. Packets received on this port
that belong to other VLANs are discarded.
Manual bandwidth configuration of a physical interface speed to 10/100/1000Mbps.
Manual duplex configuration of a physical interface to Full Duplex or Half Duplex.
Manual configuration of administrative shutdown of a physical interface.
A secure, browser-based management console
A Command Line Interface (CLI) accessible via the serial port or through Telnet or a Secure
Shell (SSH) application
Brocade Mobility RFS4000, RFS6000, and RFS7000 System Reference Guide
Configuring the DHCP User
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