Planet IGS-801 [112/120] User s manual of igs 801m

Planet IGS-801 [112/120] User s manual of igs 801m
User’s Manual of IGS-801M
APPENDEX C : GLOSSARY
A
Aggregation
Using multiple ports in parallel to increase the link speed beyond the limits of a port and to increase the
redundancy for higher availability.
(Also Port Aggregation, Link Aggregation).
ARP
ARP is an acronym for Address Resolution Protocol. It is a protocol that used to convert an IP address into a
physical address, such as an Ethernet address. ARP allows a host to communicate with other hosts when only
the Internet address of its neighbors is known. Before using IP, the host sends a broadcast ARP request
containing the Internet address of the desired destination system.
A
D
uto-Negotiation
Auto-negotiation is the process where two different devices establish the mode of operation and the speed
settings that can be shared by those devices for a link.
DHCP
DHCP is an acronym for Dynamic Host Configuration Protocol. It is a protocol used for assigning dynamic IP
addresses to devices on a network.
DHCP used by networked computers (clients) to obtain IP addresses and other parameters such as the default
gateway, subnet mask, and IP addresses of DNS servers from a DHCP server.
The DHCP server ensures that all IP addresses are unique, for example, no IP address is assigned to a second
client while the first client's assignment is valid (its lease has not expired). Therefore, IP address pool
management is done by the server and not by a human network administrator.
Dynamic addressing simplifies network administration because the software keeps track of IP addresses rather
than requiring an administrator to manage the task. This means that a new computer can be added to a network
without the hassle of manually assigning it a unique IP address.
DNS
DNS is an acronym for Domain Name System. It stores and associates many types of information with domain
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