ZXR A Series L3 Intelligent Ethernet Switch

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Cameron Joseph
5 years ago
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1 ZXR A Series L3 Intelligent Ethernet Switch

2 Overview ZXR A series L3 Intelligent Ethernet switches are box-like 1RU-high layer 3 routing switches. ZXR A 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. ZXR A offers the following switch types: ZXR A Series L3 Intelligent Ethernet Switch 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: ZXR A ZXR A-PS ZXR A-FI ZXR A 1*GE RJ45&1*GE SFP/2*GE RJ45/2*FE SFP/2*GE SFP Advanced Features ZXR A has complete L2 switching and L3 routing capabilities; it supports POE, stacking and comprehensive security and reliability related features. Full Service Support ZXR A 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. QinQ and selective QinQ enable the administrator to distinguish users and services at the access side effectively. ZXR A supports routing mechanisms including static routing, RIP, OSPF, IS-IS and BGP.

3 Multicast-based technologies like video-surveillance and videoconference are becoming more and more popular these days. ZXR A 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. ZXR A 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 ZXR A 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. ZXR A 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 ZXR A-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. ZXR A 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. ZXR A 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. ZXR A 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.

4 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 ZXR A 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 X 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 Basic Parameters Fixed interfaces Expansion card (Number of expansion card slots*type of expansion card) Backplane Capacity Switching Capacity Packet Forwarding Rate Route table Depth(host 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 1*(1 GE RJ45 port+1 GE SFP port)/1*2 GE RJ45 ports/1*2 FE SFP ports/1*2 GE SFP ports 48 FE RJ45 ports+4 GE SFP ports 48Gbps 48Gbps 48Gbps 48Gbps 12.8Gbps 12.8Gbps 12.8Gbps 17.6Gbps 9.6Mpps 9.6Mpps 9.6Mpps 13.2Mpps 4K+8K -

5 Functions and Parameters 3928A 3928A-PS 3928A-FI 3952A Features Equipment Management Physical Parameters route number +subnet route number) MAC table Depth L2 Features L3 Features Multicast QoS Security Reliability Enhanced Features Local management Dimensions (H*W*D) Maximum Weight DC power supply AC power supply Maximum power consumption Power redundancy pattern 16K IEEE 802.1q VLAN, IEEE 802.1p, IEEE 802.3ad, STP, RSTP, MSTP, Selective QinQ, VLAN translation, PVLAN, DHCP Snooping, 802.1x Static routing, RIP, OSPF, ISIS, BGP, MCE Administratively scoped multicast/iptv, MVR, IGMP, IGMP Snooping, Filtering, Proxy and Fast Leave, PIM-SM, MSDP 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, support various congestion avoidance mechanisms 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 LACP, ZESS, ZESR/ZESR+, VRRP MFF, Stacking MFF, Stacking, POE/POE+ MFF, Stacking MFF, Stacking 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) 43.6mm *442mm 43.6mm *442mm 43.6mm *442mm 43.6mm *442mm *280mm *280mm *280mm *360mm 3.5kg 5.9kg 4kg 4.5kg -48V 50Hz~60Hz 15W -57V~-48V(POE:- 57V~-48V, POE+:- 57V~-53V) 50Hz~60Hz; 1100W RPS Power Supply AC Input: DC Output :- 55V~-53V 785W (Among which system power 65W, POE power output 720W) V -48V 50Hz~60Hz 20W 180W RPS(Redundant Power Supply): AC/DC Input :100V~240V /-48V, DC Output:+12V 50Hz~60Hz 25W 180W RPS(Redundant Power Supply): AC/DC Input :100V~240 V/-48V, DC Output:+12V

6 Functions and Parameters 3928A 3928A-PS 3928A-FI 3952A Heat dissipation pattern Heat dissipation Temperature, humidity Working altitude MTBF/MTTR Cooling without Fan Fan cooling Fan cooling Fan cooling 49 BTU/h 182 BTU/h 56 BTU/h 70 BTU/h Working temperature: -5 o C ~+45 o C, humidity:10%~90% <3000 meters > hours/ < 30 minutes

Optimizing Gigabits Ethernet Flawless

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