Table 1 Functions and features of the EFS4 single board

Functions and Features

Description

Basic Functions

Processing 4-channel FE services

Interface specification

10Base-T/100Base-TX, meet IEEE802.3u standard.

Service frame format

Ethernet II, IEEE 802.3, IEEE 802.1 q/p

Supports frame length from 64Byte to 9600Byte, supports Jumbo frames up to 9600Byte.

Maximum Uplink Bandwidth

The maximum uplink bandwidth of N1EFS4 is 622Mbit/s.

The maximum uplink bandwidth of N2EFS4 is 1.25Gbit/s.

Number of VCTRUNK

The number of VCTRUNKs for N1EFS4 is 12.

The number of VCTRUNKs for N2EFS4 is 24.

Mapping method

VC-12, VC-3, VC-12-Xv (x≤63), VC-3-Xv (x≤12)

Package format

GFP

EPL

Supports PORT-based transparent transport and PORT+VLAN-based Ethernet leased line services.

EVPL

Supports EVPL services using MartinioE and stack VLAN frame encapsulation formats.

EPLAN

Supports Layer 2-based aggregation and point-to-multipoint aggregation.

Supports forwarding function of Layer 2 switching, user side switching and SDH network side switching.

Supports source MAC address self-learning function, MAC address table size of 16k, MAC address aging time setting and query.

Supports static MAC routing configuration.

N1EFS4 supports dynamic MAC address query, and supports querying the number of actual learned MAC addresses by VB+VLAN or VB+LP.

N2EFS4 does not support dynamic MAC address query and supports querying the number of actual learned MAC addresses by VB+VLAN or VB+LP.

Supports data isolation based on VB (Virtual Bridge) + VLAN method.

Supports creation, deletion and querying of VBs. The maximum number of VBs is 16 (N2EGS2 supports a maximum of 2), and the maximum number of logical ports per VB is 30.

EVPLAN

Support EVPLAN service, N1EFS4 uses MPLS Martini OE, MPLS MartiniOP and stack VLAN frame encapsulation format, N2EFS4 uses MPLS Martini OE and stack VLAN frame encapsulation format.

MPLS Technology

Supports

VLAN

IEEE 802.1q/p

VLAN Aggregation

Support, 4k VLANs

Rapid Spanning Tree (RSTP)

Supports broadcast message suppression and Rapid Spanning Tree Protocol (RSTP), compliant with IEEE 802.1w standard.

Multicast (IGMP Snooping)

Supports

ETH-OAM

N2EFS4 supports multicast CC (continuity check) and unicast LB (Loopback) test.

CAR

Support, granularity is 64kbit/s.

QoS flow classification based on service

N1EFS4 supports PORT, PORT+VLAN ID, PORT+VLAN PRI based on service classification.

N2EFS4 supports PORT, PORT+VLAN ID, PORT+VLAN ID+VLAN PRI based on flow classification.

LCAS

ITU-T G.7042, which enables dynamic bandwidth increase, dynamic decrease, and protection functions.

LPT

Supports LPT function, which can be set to enable and disable.

Flow Control Function

Port-based IEEE 802.3x flow control.

Test Frames

Support for receiving and sending Ethernet test frames.

Loopback Function

Supports inner loopback on Ethernet ports (PHY layer or MAC layer). Supports inner loopback and outer loopback at VC-3 level.

Ethernet Performance Monitoring

Supports port-level Ethernet performance monitoring.

Alarm and Performance

Provides rich alarms and performance events for easy device management and maintenance.