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Page 96 / 110 Scroll up to view Page 91 - 95
87
Appendix D: Glossary
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
LAN
- The computers and networking products that make up your local network.
MAC
(
M
edia
A
ccess
C
ontrol)
Address
- The unique address that a manufacturer assigns to each networking
device.
Mask
- A filter that includes or excludes certain values, for example parts of an IP address.
Mbps
(
M
ega
B
its
P
er
S
econd) - One million bits per second; a unit of measurement for data transmission.
MD5
(
M
essage
D
igest
5
) - An algorithm that produces a 128-bit hash. MD5 is a variation of MD4, and increases
MD4 security. MD5 verifies the integrity of the communication and authenticates the origin of the communication.
MDI
(
M
edia
D
ependent
I
nterface) A cable used for end stations.
MDIX
(
M
edia
D
ependent
I
nterface with Crossover) - A cable used for hubs and switches.
MIB
(
M
anagement
I
nformation
B
ase) - MIBs contain information describing specific aspects of network
components.
Multicast
- Transmits copies of a single packet to multiple ports.
Network
- A series of computers or devices connected for the purpose of data sharing, storage, and/or
transmission between users.
NMS
(
N
etwork
M
anagement
S
ystem) - An interface that provides a method of managing a system.
OID
(
O
bject
Id
entifier) - Used by SNMP to identify managed objects. In the SNMP Manager/Agent network
management paradigm, each managed object must have an OID to identify it.
Packet
- A unit of data sent over a network.
Ping
(
P
acket
IN
ternet
G
roper) - An Internet utility used to determine whether a particular IP address is online.
Policing
- Determines if traffic levels are within a specified profile. Policing manages the maximum traffic rate
used to send or receive packets on an interface.
Port
- The connection point on a computer or networking device used for plugging in cables or adapters.
Port Mirroring
- Monitors and mirrors network traffic by forwarding copies of incoming and outgoing packets
from one port to a monitoring port.
P
ower
o
ver
E
thernet (
PoE
) - A technology enabling an Ethernet network cable to deliver both data and power.
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88
Appendix D: Glossary
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
QoS
(
Q
uality
o
f
S
ervice) -Provides policies that contain sets of filters (rules). QoS allows network managers to
decide how and what network traffic is forwarded according to priorities, application types, and source and
destination addresses.
RADIUS
(
R
emote
A
uthentication
D
ial-
I
n
U
ser
S
ervice) - A protocol that uses an authentication server to control
network access.
RJ-45
(
R
egistered
J
ack
-45
) - An Ethernet connector that holds up to eight wires.
RMON
(
R
emote
Mon
itoring) - Provides network information to be collected from a single workstation.
Router
- A networking device that connects multiple networks together.
RSTP
(
R
apid
S
panning
T
ree
P
rotocol) - Detects and uses network topologies that allow a faster convergence of
the spanning tree, without creating forwarding loops.
Server
- Any computer whose function in a network is to provide user access to files, printing, communications,
and other services.
SMTP
(
S
imple
M
ail
T
ransfer
P
rotocol) - The standard e-mail protocol on the Internet.
SNMP
(
S
imple
N
etwork
M
anagement
P
rotocol) - A widely used network monitoring and control protocol.
SSH
- Secure Shell. A utility that uses strong authentication and secure communications to log in to another
computer over a network.
SSL
(
S
ecure
S
ocket
L
ayer) - Encryption technology for the Internet used to provide secure transactions, such as
the transmission of credit card numbers for e-commerce.
Static IP Address
- A fixed address assigned to a computer or device that is connected to a network.
STP
(
S
panning
T
ree
P
rotocol) - Prevents loops in network traffic. The Spanning Tree Protocol (STP) provides tree
topography for any arrangement of bridges. STP provides one path between end stations on a network,
eliminating loops.
Subnet
(
Sub
-
net
work) - Subnets are portions of a network that share a common address component. In TCP/IP
networks, devices that share a prefix are part of the same subnet. For example, all devices with a prefix of
157.100.100.100 are part of the same subnet.
Subnet Mask
- An address code that determines the size of the network.
Switch
- Filters and forwards packets between LAN segments. Switches support any packet protocol type.
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89
Appendix D: Glossary
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
TACACS+
(
T
erminal
A
ccess
C
ontroller
A
ccess
C
ontrol
S
ystem
Plus
) - Proprietary Cisco enhancement to Terminal
Access Controller Access Control System (TACACS). Provides additional support for authentication, authorization,
and accounting.
TCP
(
T
ransmission
C
ontrol
P
rotocol) - A network protocol for transmitting data that requires acknowledgement
from the recipient of data sent.
TCP/IP
(
T
ransmission
C
ontrol
P
rotocol/
I
nternet
P
rotocol) - A set of instructions PCs use to communicate over a
network.
Telnet
- A user command and TCP/IP protocol used for accessing remote PCs.
TFTP
(
T
rivial
F
ile
T
ransfer
P
rotocol) - A version of the TCP/IP FTP protocol that has no directory or password
capability.
Throughput
- The amount of data moved successfully from one node to another in a given time period.
Trunking
- Link Aggregation. Optimizes port usage by linking a group of ports together to form a single trunk
(aggregated groups).
TX Rate
- Transmission Rate.
UDP
(
U
ser
D
ata
P
rotocol) - Communication protocol that transmits packets but does not guarantee their delivery.
Upgrade
- To replace existing software or firmware with a newer version.
Upload
- To transmit a file over a network.
URL
(
U
niform
R
esource
L
ocator) - The address of a file located on the Internet.
VLAN
(
V
irtual
L
ocal
A
rea
N
etworks) - Logical subgroups that constitute a Local Area Network (LAN). This is done
in software rather than defining a hardware solution.
WAN
(
W
ide
A
rea
N
etwork) - Networks that cover a large geographical area.
Wildcard Mask
- Specifies which IP address bits are used, and which bits are ignored. A wild card mask of
255.255.255.255 indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all the bits are important.
For example, if the destination IP address is 149.36.184.198 and the wildcard mask is 255.36.184.00, the first
two bits of the IP address are used, while the last two bits are ignored.
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90
Appendix E: Specifications
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
Appendix E: Specifications
Model
SRW2024P
Ports
24 RJ-45 connectors for 10BASE-T, 100BASE-TX and 1000BASE-T with 4 shared SFP slots
Cabling Type
UTP CAT 5 or better for 10BASE-T/100BASE-TX, UTP CAT 5e or better for 1000BASE-T
LEDs
System, Link/Act, PoE
Performance
Switching Capacity
48 Gbps, non-blocking
MAC table size
8K
Number of VLANs
256 - Static (Today) and Dynamic (Future)
Management
Web User Interface
Built-in Web UI for easy browser-based configuration (HTTP/HTTPS)
SNMP
SNMP version v1, v2c with support for traps
SNMP MIBs
RFC1213 MIB-2, RFC2863 Interface MIB, RFC2665 Ether-like MIB, RFC1493 Bridge MIB,
RFC2674 Extended Bridge MIB (P-bridge, Q-bridge), RFC2819 RMON MIB (groups 1,2,3,9 only),
RFC2737 Entity MIB, RFC 2618 RADIUS Client MIB
RMON
Embedded Remote Monitoring (RMON) software agent supports four RMON groups
(history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis
Firmware Upgrade
Web Browser upgrade (HTTP)
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91
Appendix E: Specifications
24-Port 10/100/1000 Gigabit Switch with Webview and PoE
TFTP upgrade
Port Mirroring
Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe
Other Management
RFC854 Telnet (Menu-driven configuration)
Secure Shell (SSH) and Telnet Management
Telnet Client
SSL security for Web UI
Switch Audit Log
DHCP Client
BootP
SNTP
Xmodem upgrade
Cable Diagnostics
PING
Security features
IEEE 802.1x
802.1x - RADIUS Authentication. MD5 Encryption
Access Control
IP and MAC ACLs
Management ACL
Port security (MAC filtering)
Availability
Link Aggregation
Link Aggregation using IEEE 802.3ad LACP
Up to 8 ports in up to 8 LAGs
Storm Control
Broadcast, Muticast, and Unknown Unicast
Spanning Tree
IEEE 802.1d Spanning Tree, IEEE 802.1w Rapid Spanning Tree
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