What is the Centillion 1200N Switch? What is a Server Card?
Centillion 1200N ATM Switch User Manual 2-7
NTP 297-8103-903
What is a Server Card?The Server Card is a CPU built-in card for realizing seamless connection with
existing LAN in an ATM network environment.
The card is mounted on ATM Switches, which serves as the core of an ATM
network, to provide LANE server, ARP server, and NHRP server functions.
Following are features of the server card:
■Provides server functions conforming to various specifications
The software that provides the LAN emulation server fu nctions is installed in
the card with a built-in CPU to facilitate the construct io n of LAN emulation.
By installing software with ARP server and NHRP server functions, it is
possible to eliminate bandwidth waste caused by conventional broadcast
address solution and improve the capacity of the network as a whole.
■Hot-Swappable
The server card can be inserted into or removed from the ATM switching
system without affecting its switching functions.
■Processor-to-processor communication function
Reciprocal communication is realized between the CPU in the server card and
the CPU in the switching system. This function allows the switching system
to control the server card and also to control in an integrated fashion the
switching system, along with other network equipment, with an NMS
(Network Management System).
■Allows the installation of several server cards
A number of server cards can be installed on a single ATM Switch.
Consequently, this facilitates the scalable expans ion of the ser ver ac cording to
network size and enables the server to be operated in a redundant
configuration. In addition, this feature makes it possible to distribute the
traffic that had concentrated in the server with conventional networks.