Planet GS-5220 Series User Manual page 547

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.
ARP Inspection
ARP Inspection is a secure feature. Several types of attacks can be launched against a host or devices
connected to Layer 2 networks by "poisoning" the ARP caches. This feature is used to block such attacks.
Only valid ARP requests and responses can go through the switch device.
Auto-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.
C
CC
CC is an acronym for Continuity Check. It is a MEP functionality that is able to detect loss of
continuity in a network by transmitting CCM frames to a peer MEP.
CCM
CCM is an acronym for Continuity Check Message. It is a OAM frame transmitted from a MEP to
its peer MEP and used to implement CC functionality.
CDP
User's Manual of GS-5220 LCD Series
547