Lantech LGS-2816C-RPS, User Manual

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G
LOSSARY
ACL
Access Control List. ACLs can limit network traffic and restrict
access to certain users or devices by checking each packet for
certain IP or MAC (i.e., Layer 2) information.
BOOTP
Boot Protocol. BOOTP i
s
used to provide bootup information for
network devices, including IP address information, the address of
the TFTP server that contains the devices system files, and the
name of the boot file.
C
O
S
Class of Service is supported by prioritizing packets based on the
required level of service, and then placing them in the appropriate
output queue. Data is transmitted from the queues using weighted
round-robin service to enforce priority service and prevent
blockage of lower-level queues. Priority may be set according to
the port default, the packet‘s priority bit (in the VLAN tag),
TCP/UDP port number, IP Precedence bit, or DSCP priority bit.
D
IFF
S
ERV
Differentiated Services provides quality of service on large
networks by employing a well-defined set of building blocks from
which a variety of aggregate forwarding behaviors may be built.
Each packet carries information (DS byte) used by each hop to
give it a particular forwarding treatment, or per-hop behavior, at
each network node.
DiffServ
allocates different levels of service to
users on the network with mechanisms such as traffic meters,
shapers/droppers, packet markers at the boundaries of the
network.
DHCP
Dynamic Host Control Protocol. Provides a framework for passing
configuration information to hosts on a TCP/IP network. DHCP is
based on the Bootstrap Protocol (BOOTP), adding the capability of
automatic allocation of reusable network addresses and additional
configuration options.
DHCP O
PTION
82
A relay option for sending information about the requesting client
(or an intermediate relay agent) in the DHCP request packets
forwarded by the switch and in reply packets sent back from the
DHCP server. This information can be used by DHCP servers to
assign fixed IP addresses, or set other services or policies for
clients.