Raisecom ISCOM2600G (A) Series Product Description page 91

Raisecom
ISCOM2600G (A) Series Product Description
Digital Subscriber
Line Access
Multiplexer
(DSLAM)
Dynamic ARP
Inspection (DAI)
E
Ethernet Linear
Protection Switching
(ELPS)
Ethernet Ring
Protection Switching
(ERPS)
F
Frame
Full duplex
H
Half duplex
L
Link Aggregation
Link-state tracking
It is a network device, often located in telephone exchanges, that
connects multiple customer digital subscriber line (DSL)
interfaces to a high-speed digital communications channel using
multiplexing techniques.
A security feature that can be used to verify the ARP data
packets in the network. With DAI, the administrator can
intercept, record, and discard ARP packets with invalid MAC
address/IP address to prevent common ARP attacks.
It is an APS protocol, based on ITU-T G.8031 standard, used to
protect the Ethernet link. It is an end-to-end protection
technology, including two line protection modes: linear 1:1
protection switching and linear 1+1 protection switching.
It is an APS protocol based on ITU-T G.8032 standard, which is
a link-layer protocol specially used for the Ethernet ring. In
normal conditions, it can avoid broadcast storm caused by the
data loop on the Ethernet ring. When the link or device on the
Ethernet ring fails, services can be quickly switched to the
backup line to enable services to be recovered in time.
It is a data transmission unit, composed of several parts, each of
which has different functions.
In a communication link, both parties can receive and send data
concurrently.
In a communication link, both parties can receive or send data at
a time.
With link aggregation, multiple physical Ethernet interfaces are
combined to form a logical aggregation group. Multiple physical
links in one aggregation group are taken as a logical link. Link
aggregation helps share traffic among member interfaces in an
aggregation group. In addition to effectively improving the
reliability on links between devices, link aggregation can help
gain greater bandwidth without upgrading hardware.
Link-state tracking provides an interface linkage scheme,
extending the range of link backup. Through monitoring uplinks
and synchronizing downlinks, faults of the upstream device can
be transferred quickly to the downstream device, and
primary/backup switching is triggered. In this way, it avoids
traffic loss because the downstream device does not sense faults
of the upstream link.
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