METRObility Optical Systems R821-1S, Инструкция по установке и эксплуатации

Страница: 13 / 127

11
Overview
•
Support for SNMPv1 and SNMPv2c community based profiles and
views for read-only, read-write, and administrative access.
•
SNMPv3 support for increased network management security.
Provides user authentication and authorization along with data
encryption.
•
Transparent MAC-layer forwarding and filtering. (No Spanning Tree)
•
Ability to stack and unstack VLAN tags based on the bridge port over
which an Ethernet frame is received or transmitted. (Q-in-Q VLAN
tagging.)
•
Static ARP and IP address entries.
•
Class of Service (CoS) using four priority queues.
•
Traffic prioritization based on p-bits in the VLAN header, DSCP bits in
IP frames, or the default port priority.
•
PVID tagging.
•
Traffic filtering and forwarding to provide access control security.
•
Copper line quality (CLQ) diagnostic tester that identifies various faults
(open circuit, short circuit, impedance mismatch) and indicates the
distance to the fault from the device.
•
Support for 16 user VLANs and one management VLAN.
•
Management support for up to two remote units off each port if the
services line card is under proxy management via the R502-M.
•
RADIUS client support to protect sensitive network information by
restricting access to authorized users only.