ZTE ZXR10 3900A series L3 Intelligent

Ethernet Switches

Overview

ZXR10 3900A series L3 Intelligent Ethernet switches are box-like 1RU-high layer 3 routing

switches. ZXR10 3900A series switches provide high density of FE Ethernet ports, complete L2

switching and L3 routing functionalities and enhanced POE/POE+ ability, which enable them to be

deployed as access or convergence devices

for intelligent campus networks.

ZXR10 3900A offers the following switch

types:

3928A: 24*FE RJ45 + 2*GE SFP +

1*expansion slot

3928A-PS: 24*FE RJ45 POE/POE+ +

2*GE SFP + 1*expansion slot

3928A-FI: 24*FE SFP + 2*GE SFP +

1*expansion slot

3952A: 48*FE RJ45 + 4*GE SFP

The expansion card slot can be equipped

with one of following types of cards:

1*GE RJ45&1*GE SFP

2*GE RJ45

2*FE SFP

2*GE SFP

Advanced Features

ZXR10 3900A has complete L2 switching and L3 routing capabilities; it supports POE, stacking

and comprehensive security and reliability related features.

Full Service Support

ZXR10 3900A series switches support diversified VLAN features, including SuperVLAN, QinQ,

selective QinQ, VLAN translation and PVLAN.

VLAN translation can be used to separate and distinguish services, while PVLAN can help restrict

direct L2 communication between downlink ports.

ZXR10 3900A Series L3 Intelligent Ethernet Switch

ZXR10 3928A

ZXR10 3928A-PS

ZXR10 3928A-FI

ZXR10 3952A

QinQ and selective QinQ enable the administrator to distinguish users and services at the access

side effectively.

ZXR10 3900A supports routing mechanisms including static routing, RIP, OSPF, IS-IS and BGP.

Multicast-based technologies like video-surveillance and videoconference are becoming more and

more popular these days. ZXR10 3900A fully supports L2/L3 multicast, including IGMP snooping,

Filtering, Proxy and Fastleave, MVR (Multicast VLAN Registration) and PIM-SM to facilitate the

deployment of these services.

ZXR10 3900A supports MCE (multi-vrf CE), which means the capability to simulate multiple CEs to

reduce the number of CE devices and reduce interface requirement for PE. Each virtual CE is

separated from other virtual CE. User isolation and security guarantee can be implemented by

multi-vrf CE.

Super Extensible Stacking

ZXR10 3900A supports super extensible stacking function; a working stack can accept new

members or delete existing ones without service interruption. Network extensibility is enhanced as

the user can freely increase the capacity of a single logical network node. N+1 redundancy for the

master switch helps avoid single-point failure and reduce service breakdown. ZXR10 3900A series

switch can provide long-distance (up to 120km) stacking solution. Access interfaces from different

member switches can be used to form a logical smart group, fully leveraging the capacity of each

single switch member and increasing the flexibility of network design.

Intelligent Power over Ethernet

All the electrical access interfaces of ZXR10 3928A-PS support POE and POE+, which go in line

with 802.3af and 802.3at standards, and are compatible with PD equipment that doesn't support

802.3af and 802.3at. For POE, the power output per single interface can reach 15.4W; For POE+,

the power output per single interface can reach 30W.

ZXR10 3900A supports assigning time-ranges for POE. During the time when power output is

unnecessary, the POE function can be turned off to save energy for the customer.

Enhanced Reliability

Loop detection allows the switch to detect possible loops without the need to enable STP.

With UDLD (uni-Directional Link Detection), uni-directional link failure caused by wiring mistake or

port failure can be detected.

ZXR10 3900A fully supports 802.3ad LACP (link aggregation control protocol) to provide

redundancy in case link failure happens, and to broaden bandwidth.

When deployed in layer 2 environment, ZESR/ZESR+ (ZTE Ethernet Smart Ring) and ZESS (ZTE

Ethernet Smart Switching) can be used to implement fast switchover in case of single point failure.

ZXR10 3900A supports both close ring ZESR and open ring ZESR+, which are both very good

network redundancy solutions in ring topology networks.

ZESS is a very simple yet effective means to realize dual-homing purpose.

Compared with STP, the biggest advantage is that the link will switch and recover quickly when

one way is disconnected and the switchover can be done in 50ms. ZESR/ZESR+ supports VLAN

load balancing to enable efficient utilization of redundant links.

Enhanced Security

ZXR10 3900A supports diversified mechanisms to guarantee the security of the network:

CPU DDOS (Distributed Denial of Service) protection capability helps the equipment to mitigate

the influence caused by attacks. The equipment itself won't be brought down, which ensures the

network stability.

DAI (Dynamic ARP inspection) function and IP/MAC binding help prevent against DOS (Denial of

Service) attacks.

802.1X can be used for authentication purpose. Working together with a policy server, the user

control policy can be applied to 3900A after the authentication is done. Bandwidth limit/Qos

strategy can thus be implemented automatically.

Enhanced routing protocol communications, including simple password test and MD5

authentication can be used to prevent the alteration of routing protocol interactions.

Traffic mirroring/analyzing functions like RMON (remote monitoring), SPAN (switched port

analyzer), RSPAN (remote switched port analyzer) and sFlow help analyze real-time network

condition.

Technical Specification

Functions and Parameters 3928A 3928A-PS 3928A-FI 3952A

Interface Combination

Fixed interfaces

24 FE RJ45 ports+2

GE SFP ports

24 FE RJ45 ports

(POE/POE+)+2 GE

SFP ports

24 FE SFP ports+2

GE SFP ports

48 FE RJ45

ports+4 GE SFP

ports

Expansion card (Number of expansion card slots*Type of expansion card)

1*(1 GE RJ45 port+1 GE SFP port)/1*2 GE RJ45 ports/1*2 FE

SFP ports/1*2 GE SFP ports -

Basic Backplane Capacity

48Gbps 48Gbps 48Gbps 48Gbps

Functions and Parameters 3928A 3928A-PS 3928A-FI 3952A

Parameters Switching Capacity

12.8Gbps 12.8Gbps 12.8Gbps 17.6Gbps

Packet Forwarding Rate

9.6Mpps 9.6Mpps 9.6Mpps 13.2Mpps

Route table Depth(host route number +subnet route number)

4K+8K

MAC table Depth

16K

Features

L2 Features IEEE 802.1q VLAN, IEEE 802.1p, IEEE 802.3ad, STP, RSTP, MSTP, Selective QinQ,

VLAN translation, PVLAN, DHCP Snooping, 802.1x

L3 Features Static routing, RIP, OSPF, ISIS, BGP, MCE

Multicast Administratively scoped multicast/IPTV, MVR, IGMP, IGMP Snooping, Filtering,

Proxy and Fast Leave, PIM-SM, MSDP

QoS

Marking, modification of Qos priority and mapping between 802.1p, IP DSCP. 8

hardware-based queues per port, SP, WRR, SP+WRR queue scheduling

mechanisms, Policing/shaping based on port/flow, Congestion avoidance

mechanisms including WRED and Tail-Drop

Security

CPU anti-attack, CPU overload protection, Broadcast/Multicast/unknown Unicast

suppression, STP Root Guard, BPDU guard, uRPF, RIP/OSPF/BGP MD5 encryption

checking, IP source Guard

Reliability LACP, ZESS, ZESR/ZESR+, VRRP

Enhanced Features

MFF, Stacking MFF, Stacking,

POE/POE+ MFF, Stacking MFF, Stacking

Equipment Management

Local management

RS232 Console (RJ45), Ethernet management port, CLI, Telnet, SSH, Local and

remote(Radius/Tacacs+)authentication of user, Web management, SNMP,

NetNumen U31, Cluster Management (ZGMP)

Physical

Parameters

Dimensions (H*W*D)

43.6mm *442mm

*280mm

43.6mm *442mm

*280mm

43.6mm *442mm

*280mm

43.6mm *442mm

*360mm

Maximum Weight

3.5kg 5.9kg 4kg 4.5kg

DC power supply

-48V -57V~-48V(POE:-5

7V~-48V, -48V -48V

Functions and Parameters 3928A 3928A-PS 3928A-FI 3952A

POE+:-57V~-53V)

AC power supply

100V~240V,

50Hz~60Hz

100V~240V,

50Hz~60Hz;

1100W RPS Power

Supply AC Input:

100V~240V,

DC

Output :-55V~-53

V

100V~240V,

50Hz~60Hz

100V~240V,

50Hz~60Hz

Maximum power consumption

15W

785W (Among

which system

power 65W,

POE power

output 720W)

20W 25W

Power redundancy pattern

- -

180W

RPS(Redundant

Power Supply):

AC/DC

Input :100V~240V

/-48V,

DC Output:+12V

180W

RPS(Redundant

Power Supply):

AC/DC

Input :100V~240

V/-48V,

DC Output:+12V

Heat dissipation pattern

Cooling without

Fan Fan cooling Fan cooling Fan cooling

Heat dissipation

49 BTU/h 182 BTU/h 56 BTU/h 70 BTU/h

Temperature, humidity

Working temperature: -5oC ~+45oC, humidity:10%~90%

Working altitude

<3000 meters

MTBF/MTTR > 100000 hours/ < 30 minutes