A10E/A28E/A28F Configuration Guide
Challenge-
Handshake
Authentication
Protocol
(CHAP)
A protocol of PPP. It is a 3-times handshake authentication protocol
which is used to transmit the user name only on the network.
Dynamic ARP
Inspection
(DAI)
A security feature that can be used to verify the ARP datagram in the
network. With DIA, the administrator can intercept, record, and discard
ARP packets with invalid MAC address/IP address to prevent common
ARP attacks.
Dynamic Host
Configuration
Protocol
(DHCP)
A technology used for assigning IP address dynamically. It can
automatically assign IP addresses for all clients in the network ro reduce
workload of the administrator. In addition, it can realize centralized
management of IP addresses.
A component installed on both sides of the chassis, used for install the
chassis to the rack.
Ethernet in the
First Mile
(EFM)
Complied with IEEE 802.3ah protocol, Ethernet in the First Mile (EFM)
is a link-level Ethernet OAM technology. It provides the link
connectivity detection function, link fault monitor function, and remote
fault notification function, etc for a link between two directly connected
devices. EFM is mainly used for Ethernet link on edges of the network
accessed by users.
Ethernet
Linear
Protection
Switching
(ELPS)
An APS protocol based on ITU-T G.8031 Recommendation to protect
an 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.
Ethernet Ring
Protection
Switching
(ERPS)
An APS protocol based on ITU-T G.8032 Recommendation to provide
backup link protection and recovery switching for Ethernet traffic in a
ring topology and at the same time ensuring that there are no loops
formed at the Ethernet layer.
Provide a port association solution, extending link backup range.
Transport fault of upper layer device quickly to downstream device by
monitoring upstream link and synchronize downstream link, then trigger
switching between master and standby device and avoid traffic loss.
Communication link can transmit and receive data at the same time from
both directions.
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