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S3700HI Ethernet SwitchesV200R001C00Product DescriptionIssue 05Date 2012-10-20HUAWEI TECHNOLOGIES CO., LTD.

1.2.4 Comprehensive Security MeasuresThe S3700 guarantees security of network devices and data transmission. It provides thefollowing security measure

l You do not need to maintain the fans, which saves the maintenance cost.l The system does not have additional power consumption generated by fans, wh

2 Product ArchitectureAbout This Chapter2.1 Introduction2.2 Device ArchitectureThis section describes the structure of the S3700.2.3 Hardware Modules2

2.1 IntroductionThe S3700HI adopts the integrated hardware platform and have the front-access structure. Thehardware consists of the chassis, power su

NOTEBy default, a combo interface works in the auto mode. In the auto mode, if the electrical interface isconnected to a network cable first, the comb

2.3.1 SCUThe SCU is fixed on the S3700. Each S3700 has one SCU.The SCU is responsible for packet switching and device management. It integrates multip

2.4 Software ArchitectureThe S3700 runs on the latest VRP version 5 (VRPv5) to provide various features. VRPv5 consistsof the following parts:l System

3 Link FeaturesAbout This Chapter3.1 Ethernet Features3.2 STP/RSTP/MSTP3.3 RRPP3.4 Smart Link3.5 SEP3.6 ERPS3.7 Interface Security3.8 Link DetectionS3

3.1 Ethernet Features3.1.1 Link AggregationLink aggregation is a function that binds multiple physical interfaces on one device or multipledevices int

The S3700 can also control the percentage of unknown unicast packets, multicast packets, andbroadcast packets on an interface.3.1.4 VLANA local area n

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any

subordinate VLANs can communicate with ports on the MUX VLAN. Ports on a subordinategroup VLAN can communicate with each other but cannot communicate

3.1.6 GVRPGVRP is a protocol used for dynamic registration and deregistration of VLANs. GVRPmaintains the dynamic VLAN registration information in a s

When the designated port enabled with root protection receives a BPDU of higher priority, theport does not change to a non-designated port. Instead, i

3.3.1 RRPP Ring Network CompositionAn RRPP domain consists of a group of S3700s with the same domain ID and control VLANID. An RRPP domain consists of

the subring. This networking is applicable to the convergence of a dual-homing network.Through this networking, the upstream links are backed up.Conne

l Unidirectional traffic may cause unidirectional broadcast storms on the network. The SEPprotocol can prevent unidirectional broadcast storms because

l VCT is mainly used to estimate the length of a network cable and locate the failure pointof the cable. The S-switch simulates radar to detect cable

4 Service FeaturesAbout This Chapter4.1 IPv4 Forwarding4.2 IPv64.3 Routing Protocol4.4 Multicast4.5 QoS4.6 Security4.7 MAC-Forced Forwarding4.8 DHCP4.

4.1 IPv4 Forwarding4.1.1 IPv4 FeaturesThe S3700 supports the following IPv4 features:l TCP/IP protocol stack, including ICMP, IP, TCP, UDP, socket (TC

4.2 IPv6The S3700 provides the IPv6 host function, which protects the investment of customers andprevents repeat investment during network upgrade.The

About This DocumentIntended AudienceThis document describes the positioning, characteristics, architecture, link features, servicefeatures, applicatio

4.4.2 Prompt Leave of Multicast Member InterfacesWhen a multicast member leaves a multicast group, the host sends an IGMP Leave message.When an interf

set to 6; the 802.1p priority of BTV packets and VOD packets is set to 5 or 4; the 802.1p priorityof packets sent by VPN users is set to 3, 2, or 1 ac

4.5.2 Access Control and Re-markingAfter traffic classification, the S3700 performs access control on the packets, that is, permits ordenies the packe

l When a queue is shorter than the minimum threshold, the device does not discard packets.l When the length of a queue is between the low threshold an

AAAThe S3700 supports the Authentication, Authorization, and Accounting (AAA). Using AAAand hierarchical command protection, the S3700 can authenticat

Packet FilteringPacket filtering is used to filter out invalid or unwanted packets.The S3700 filters packets based on user-defined rules. For example,

At the access layer, the enterprise-side has the following requirements:l In order that the enterprise-side uses the AR to perform secure filtering,

l The DHCP server appends the Option 82 field to a Response message. The S3700 analyzesthe Option 82 field, determines a forwarding interface, removes

convergence implements association between Smart Link and Monitor Link. When no upstreamlinks exist, the S3700 disables the downstream interface and s

The S3700 supports Network Quality Analysis (NQA), which sends test packets to analyze thenetwork performance and quality of service. NAQ can provide

Symbol DescriptionNOTEProvides additional information to emphasize or supplementimportant points of the main text. Change HistoryUpdates between docum

5 Networking and ApplicationsAbout This Chapter5.1 Access Device for Enterprise Network or Campus Network5.2 Desktop Access5.3 iStack5.4 Core Device f

5.1 Access Device for Enterprise Network or CampusNetworkOn the enterprise network or campus network shown in Figure 5-1, the S3700s connect totermina

Figure 5-2 Desktop accessS5700S370010G1G100MPCIP Phone Notebook 5.3 iStackAs shown in Figure 5-3, iStack improves performance and reliability of the a

Figure 5-3 iStackS9700S570010G1G100MPCCSSiSta ckiSta ckS3700 5.4 Core Device for Small Enterprise NetworkAs shown in Figure 5-4, the S3700s functionin

6 Maintenance and Network ManagementSystemAbout This Chapter6.1 Maintenance and Management6.2 eSightS3700HI Ethernet SwitchesProduct Description 6 Mai

6.1 Maintenance and Management6.1.1 Various Configuration MethodsConfiguration ModesThe S3700 supports the following configuration and management mode

l Provides the electronic labels. A user can view the basic information about the SCU andoptical modules through the CLI, and back up the information

l Local upgradeWhen the S3700 is powered on, the software can be loaded and upgraded through theBootROM menu.l Remote in-service upgradeWhen the S3700

eSight allows you to query devices, frames, boards, subcards, and ports.l Report ManagementeSight generates instant and periodic reports, and allows y

7 System Technical SpecificationsAbout This Chapter7.1 Physical Specifications7.2 Optical Module Attributes7.3 System Configuration7.4 Performance and

ContentsAbout This Document...ii1 Pr

7.1 Physical SpecificationsTable 7-1 Physical specificationsItem DescriptionDimensions (width x depth x height) S3700-26C-HI: 442.0 mm x 220.0 mm x 43

7.2 Optical Module AttributesTable 7-2 Attributes of the SFP (FE) optical moduleAttribute SpecificationTransmissiondistance2 kmCenterwavelength1310 nm

Attribute SpecificationExtinctionratio8.2 dB 8.5 dB 8.5 dB 10.0 dB 10.0 dBType of theopticalconnectorLC LC/PC LC/PC LC LCFiber type Single mode Single

Item DescriptionConnectortypeLCFibertypeMulti-modeSingle-mode Table 7-5 Attributes of the ESFP (CWDM) optical moduleAttributeSpecificationTransmission

7.3 System ConfigurationTable 7-6 System configurationItem ParameterProcessor S3700-26C-HI: 1GHzSwitching capacityl S3700-26C-HI: 12.4Gbit/sPacket for

Attribute Service Feature SpecificationsQoS Number of QoS queues on a port 8CAR 8 kbit/sACL ACLv4 Number of IPv4 ACLs supported:Ingress1K; Egress 256A

Attribute Service Feature SpecificationsSmart Linkl Maximum number of instancessupported in the system: 48l Maximum number of Smart Linkgroups support

Attribute DescriptionSmartlinkl SmartLinkl SmartLink multi-instancel MonitorLinkLLDP LLDPEthernetloopprotectionMSTPl STPl RSTPl MSTPl BPDU protection,

Attribute DescriptionDevicereliabilityBFDl Basic BFD functionsl BFD for OSPFl BFD for IS-ISl BFD for BGPl BFD for PIMOthersVRRPLayer 2multicastLayer 2

Attribute DescriptionQueueschedulingl PQl DRRl PQ+DRRl WRRl PQ+WRRCongestionavoidancel S3700-26C-HI: WREDRate limit onoutboundinterfacesRate limit on

3.2.4 Partitioned STP and BPDU Tunnel...153.3 RR

Attribute DescriptionSecurityandmanagementSystemsecurityl Hierarchical command line protection to preventunauthorized users from accessing the S3700l

4.10 LLDP...

1 Product Positioning and CharacteristicsAbout This Chapter1.1 Product Positioning1.2 Product CharacteristicsS3700HI Ethernet SwitchesProduct Descript

1.1 Product PositioningCAUTIONThe S3700HI Ethernet Switches are class A products. The switches that are operating may causeradio interference. Custome