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Glossary-1
G
LOSSARY
Access Control List
(ACL)
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).
BOOT Protocol
(BOOTP)
Boot protocol is 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.
Class of Service
(CoS)
Cos 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.
Differentiated Services Code Point Service
(DSCP)
DSCP uses a six-bit tag to provide for up to 64 different forwarding behaviors.
Based on network policies, different kinds of traffic can be marked for different
kinds of forwarding. The DSCP bits are mapped to the Class of Service categories,
and then into the output queues.
Domain Name Service
(DNS)
A system used for translating host names for network nodes into IP addresses.
Dynamic Host Control Protocol
(DHCP)
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.
Summary of Contents for 6724AL2
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Page 404: ...COMMAND LINE INTERFACE 3 216 ...
Page 406: ...TROUBLESHOOTING A 2 ...
Page 418: ...GLOSSARY Glossary 8 ...
Page 422: ...INDEX Index 4 ...
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