Glossary, Lossary – Microsens MS453490M Management Guide User Manual

Page 961

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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.

ARP

Address Resolution Protocol converts between IP addresses and MAC

(hardware) addresses. ARP is used to locate the MAC address

corresponding to a given IP address. This allows the switch to use IP

addresses for routing decisions and the corresponding MAC addresses to

forward packets from one hop to the next.

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.

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 S

NOOPING

A technique used to enhance network security by snooping on DHCP server

messages to track the physical location of hosts, ensure that hosts only use

the IP addresses assigned to them, and ensure that only authorized DHCP

servers are accessible.

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