Raisecom Gazelle S1020i-GL Series User Manual page 74

Raisecom
Gazelle S1020i-GL (A) User Manual
(LACP)
Link-state
tracking
M
Multi-mode
fiber
N
Network Time
Protocol
(NTP)
O
Open Shortest
Path First
(OSPF)
Optical
Distribution
Frame (ODF)
P
Password
Authentication
Protocol
(PAP)
Point-to-point
Protocol over
Ethernet
(PPPoE)
Private VLAN
(PVLAN)
Grounding
cable
Link-state tracking provides an interface linkage scheme, extending the
range of link backup. Through monitoring upstream links and
synchronizing downstream links, 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.
In this fiber, multi-mode optical signals are transmitted.
A time synchronization protocol defined by RFC1305. It is used to
synchronize time between distributed time server and clients. NTP is
used to perform clock synchronization on all devices that have clocks in
the network. Therefore, the devices can provide different applications
based on a unified time. In addition, NTP can ensure a very high
accuracy with an error of 10ms or so.
An internal gateway dynamic routing protocol, which is used to decide
the route in an Autonomous System (AS)
A distribution connection device between the fiber and a communication
device. It is an important part of the optical transmission system. It is
mainly used for fiber splicing, optical connector installation, fiber
adjustment, additional pigtail storage, and fiber protection.
PAP is an authentication protocol that uses a password in Point-to-Point
Protocol (PPP). It is a twice handshake protocol and transmits
unencrypted user names and passwords over the network. Therefore, it is
considered unsecure.
PPPoE is a network protocol for encapsulating PPP frames in Ethernet
frames. With PPPoE, the remote access device can control and account
each access user.
PVLAN adopts Layer 2 isolation technology. Only the upper VLAN is
visible globally. The lower VLANs are isolated from each other. If you
partition each interface of the switch or IP DSLAM device into a lower
VLAN, all interfaces are isolated from each other.
The cable to connect the device to ground, usually a yellow/green
coaxial cable. Connecting the grounding cable properly is an important
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