492
A communications network transports a multitude of applications and data, including high-quality video and
delay-sensitive data such as real-time voice. Networks must provide secure, predictable, measurable, and sometimes
guaranteed services.
Achieving the required QoS becomes the secret to a successful end-to-end business solution. Therefore, QoS is the set
of techniques to manage network resources.
R
RARP
RARP is an acronym for
R
everse
A
ddress
R
esolution
P
rotocol. It is a protocol that is used to obtain an IP address for a
given hardware address, such as an Ethernet address. RARP is the complement of ARP.
RADIUS
RADIUS is an acronym for
Re
mote
A
uthentication
D
ial In
U
ser
S
ervice. It is a networking protocol that provides
centralized access, authorization and accounting management for people or computers to connect and use a network
service.
RDI
RDI is an acronym for
R
emote
D
efect
I
ndication. It is a OAM functionallity that is used by a MEP to indicate defect
detected to the remote peer MEP
Router Port
A router port is a port on the Ethernet switch that leads switch towards the Layer 3 multicast device.
RSTP
In 1998, the IEEE with document 802.1w introduced an evolution of STP: the
R
apid
S
panning
T
ree
P
rotocol, which
provides for faster spanning tree convergence after a topology change. Standard IEEE 802.1D-2004 now incorporates
RSTP and obsoletes STP, while at the same time being backwards-compatible with STP.
Summary of Contents for IFS NS3550-24T/4S
Page 1: ...P N 1072569 REV 00 05 ISS 11OCT12 IFS NS3550 24T 4S User Manual ...
Page 37: ...User s Manual of NS3550 24T 4S 37 ...
Page 96: ...96 Figure 4 4 6 Port Mirror Configuration Page Screenshot ...
Page 127: ...User s Manual of NS3550 24T 4S 127 Figure 4 6 10 Port 1 Port 6 VLAN Configuration ...
Page 184: ...184 Figure 4 9 14 Voice VLAN Configuration Page Screenshot ...
Page 204: ...204 Figure 4 11 4 Network Access Server Configuration Page Screenshot ...
Page 234: ...234 Figure 4 12 1 Port Limit Control Configuration Overview Page Screenshot ...
Page 250: ...250 Click to undo any changes made locally and revert to previously saved values ...
Page 297: ...User s Manual of NS3550 24T 4S 297 ...
Page 388: ...388 Example Show RADIUS statistics SWITCH security aaa statistics ...
Page 410: ...410 Parameters vid VLAN ID 1 4095 Default Setting disable ...