S3700HI Ethernet Switches V200R001C00 Product Description Issue 05 Date 2012-10-20 HUAWEI TECHNOLOGIES CO., LTD.
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S3700HI Ethernet Switches Product Description About This Document About This Document Intended Audience This document describes the positioning, characteristics, architecture, link features, service features, application scenarios, operation and maintenance functions, and technical specifications of the S3700. This document helps you understand the characteristics and features of the S3700.
S3700HI Ethernet Switches Product Description About This Document Symbol Description Provides additional information to emphasize or supplement important points of the main text. NOTE Change History Updates between document issues are cumulative. Therefore, the latest document version contains all updates made to previous versions. Changes in Issue 05 (2012-10-20) Based on issue 04 (2012-09-03), the document is updated as follows: The following information is modified: l Some contents are optimized.
S3700HI Ethernet Switches Product Description Contents Contents About This Document.....................................................................................................................ii 1 Product Positioning and Characteristics...................................................................................1 1.1 Product Positioning.............................................................................................................................................2 1.
S3700HI Ethernet Switches Product Description Contents 3.2.4 Partitioned STP and BPDU Tunnel.........................................................................................................15 3.3 RRPP................................................................................................................................................................15 3.3.1 RRPP Ring Network Composition........................................................................................................
S3700HI Ethernet Switches Product Description Contents 4.10 LLDP..............................................................................................................................................................31 4.11 NQA................................................................................................................................................................31 4.12 Cluster Management...........................................................................................
S3700HI Ethernet Switches Product Description 1 1 Product Positioning and Characteristics Product Positioning and Characteristics About This Chapter 1.1 Product Positioning 1.2 Product Characteristics Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 1 Product Positioning and Characteristics 1.1 Product Positioning CAUTION The S3700HI Ethernet Switches are class A products. The switches that are operating may cause radio interference. Customers need to take prevention measures. The S3700HI Ethernet Switches (hereinafter referred to as the S3700) provide the access, aggregation, and data transport functions.
S3700HI Ethernet Switches Product Description 1 Product Positioning and Characteristics 1.2.4 Comprehensive Security Measures The S3700 guarantees security of network devices and data transmission.
S3700HI Ethernet Switches Product Description 1 Product Positioning and Characteristics 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, which improves the power efficiency. l Boards are prevented from being eroded. 1.2.7 Advanced Lightning Protection Technologies The S3700 adopts the Huawei patented lightning protection technologies to protect the equipment.
S3700HI Ethernet Switches Product Description 2 Product Architecture 2 Product Architecture About This Chapter 2.1 Introduction 2.2 Device Architecture This section describes the structure of the S3700. 2.3 Hardware Modules 2.4 Software Architecture Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 2 Product Architecture 2.1 Introduction The S3700HI adopts the integrated hardware platform and have the front-access structure. The hardware consists of the chassis, power supply, fan, and SCU. The width of the S3700 complies with the industry standards, and the S3700 can be installed in an IEC 297 cabinet or an ETSI cabinet. The S3700HI include theS3700-26C-HI. 2.2 Device Architecture This section describes the structure of the S3700.
S3700HI Ethernet Switches Product Description 2 Product Architecture NOTE By default, a combo interface works in the auto mode. In the auto mode, if the electrical interface is connected to a network cable first, the combo interface works as an electrical interface to transmit data; if the optical interface is connected to a fiber first, the combo interface works as an optical interface to transmit data.
S3700HI Ethernet Switches Product Description 2 Product Architecture 2.3.1 SCU The SCU is fixed on the S3700. Each S3700 has one SCU. The SCU is responsible for packet switching and device management. It integrates multiple functional modules, namely, the main control module, switching module, and interface module.
S3700HI Ethernet Switches Product Description 2 Product Architecture 2.4 Software Architecture The S3700 runs on the latest VRP version 5 (VRPv5) to provide various features. VRPv5 consists of the following parts: l System service plane This plane provides task and memory management, timer, software loading and patching on the basis of the operating system. In addition, it enhances modular technology to facilitate system upgrade and customization.
S3700HI Ethernet Switches Product Description 3 Link Features 3 Link Features About This Chapter 3.1 Ethernet Features 3.2 STP/RSTP/MSTP 3.3 RRPP 3.4 Smart Link 3.5 SEP 3.6 ERPS 3.7 Interface Security 3.8 Link Detection Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 3 Link Features 3.1 Ethernet Features 3.1.1 Link Aggregation Link aggregation is a function that binds multiple physical interfaces on one device or multiple devices into a logical interface (such as an Eth-Trunk). This logical interface is also called a load balancing group or a link aggregation group.
S3700HI Ethernet Switches Product Description 3 Link Features The S3700 can also control the percentage of unknown unicast packets, multicast packets, and broadcast packets on an interface. 3.1.4 VLAN A local area network (LAN) can be divided into several logical LANs. Each logical LAN is a broadcast domain, which is called a virtual LAN (VLAN). To put it simply, devices on a LAN are logically grouped into different LAN segments, irrespective of their physical locations.
S3700HI Ethernet Switches Product Description 3 Link Features subordinate VLANs can communicate with ports on the MUX VLAN. Ports on a subordinate group VLAN can communicate with each other but cannot communicate with ports on other subordinate group VLANs. Ports on a subordinate separate VLAN cannot communicate with each other. Voice VLAN A voice VLAN is used to transmit voice data flows. You can create a voice VLAN and add the interface connected to the voice device to the voice VLAN.
S3700HI Ethernet Switches Product Description 3 Link Features 3.1.6 GVRP GVRP is a protocol used for dynamic registration and deregistration of VLANs. GVRP maintains the dynamic VLAN registration information in a switch and propagates the registration information to other switches on the network through GARP. GVRP enables switches on the network to dynamically maintain and update VLANs. With GVRP, you do not need to expend time to analyze the topology and manage configurations.
S3700HI Ethernet Switches Product Description 3 Link Features When the designated port enabled with root protection receives a BPDU of higher priority, the port does not change to a non-designated port. Instead, it turns to the Listening state and stops forwarding packets. If the port does not receive protocol BPDUs of higher priority for a long time, it restores the Forwarding state. This prevents network flapping.
S3700HI Ethernet Switches Product Description 3 Link Features 3.3.1 RRPP Ring Network Composition An RRPP domain consists of a group of S3700s with the same domain ID and control VLAN ID. An RRPP domain consists of the following elements: l A physical RRPP ring maps a ring-shaped Ethernet topology. An RRPP domain is composed of multiple rings connected with each other. One of them is the primary ring and the others are subrings.
S3700HI Ethernet Switches Product Description 3 Link Features the subring. This networking is applicable to the convergence of a dual-homing network. Through this networking, the upstream links are backed up. Connecting RRPP Network with Other Networks When an RRPP ring is adjacent to an Ethernet ring enabled with STP, only the tangent rings are supported, but the intersecting rings are not supported. This prevents the conflict between RRPP and STP if both of them calculate the interface status. 3.
S3700HI Ethernet Switches Product Description 3 Link Features l Unidirectional traffic may cause unidirectional broadcast storms on the network. The SEP protocol can prevent unidirectional broadcast storms because it can detect the unidirectional traffic effectively. l It supports the display of network topology. The network topology is displayed on the basis of SEP segments.
S3700HI Ethernet Switches Product Description l Issue 05 (2012-10-20) 3 Link Features VCT is mainly used to estimate the length of a network cable and locate the failure point of the cable. The S-switch simulates radar to detect cable faults and locate the failure points on the basis of a single link. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 4 Service Features 4 Service Features About This Chapter 4.1 IPv4 Forwarding 4.2 IPv6 4.3 Routing Protocol 4.4 Multicast 4.5 QoS 4.6 Security 4.7 MAC-Forced Forwarding 4.8 DHCP 4.9 Network-Level HA 4.10 LLDP 4.11 NQA 4.12 Cluster Management 4.13 Web Server Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 4 Service Features 4.1 IPv4 Forwarding 4.1.
S3700HI Ethernet Switches Product Description 4 Service Features 4.2 IPv6 The S3700 provides the IPv6 host function, which protects the investment of customers and prevents repeat investment during network upgrade. The IPv6 functions supported by the S3700 include: l IPv6 protocol stack l Unicast routing protocols: RIPng, OSPFv3, BGP+ and ISISIPv6 l VRRP6 l IPv4/IPv6 transition technologies 4.
S3700HI Ethernet Switches Product Description 4 Service Features 4.4.2 Prompt Leave of Multicast Member Interfaces When a multicast member leaves a multicast group, the host sends an IGMP Leave message. When an interface on the S3700 is connected to only one host, the S3700 deletes the Layer 2 multicast forwarding entry of the interface immediately after receiving the IGMP Leave message. This saves bandwidth and system resources and implements fast switching of services. 4.4.
S3700HI Ethernet Switches Product Description 4 Service Features set to 6; the 802.1p priority of BTV packets and VOD packets is set to 5 or 4; the 802.1p priority of packets sent by VPN users is set to 3, 2, or 1 according to the level of VPN users; the 802.1p priority of packets of the Internet access service is set to 0. Then the packets can be classified based on their 802.1p priorities. The S3700 adopts a hardware classifier to guarantee line-speed transmission of services data on interfaces.
S3700HI Ethernet Switches Product Description 4 Service Features 4.5.2 Access Control and Re-marking After traffic classification, the S3700 performs access control on the packets, that is, permits or denies the packets. Then, the S3700 re-marks the following fields in the packets: l 802.1p field, that is, the PRI field in a VLAN tag l DSCP field l Precedence field of IP packets l VLAN ID, that is, the outer VLAN ID or inner VLAN ID of QinQ packets l Destination MAC addresses 4.5.
S3700HI Ethernet Switches Product Description 4 Service Features 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 and the high threshold, WRED begins to discard packets randomly. l When a queue is longer than the high threshold, the device discards all incoming packets. 4.5.
S3700HI Ethernet Switches Product Description 4 Service Features AAA The S3700 supports the Authentication, Authorization, and Accounting (AAA). Using AAA and hierarchical command protection, the S3700 can authenticate and authorize login users. In addition, it can authenticate the NMS administrator. AAA effectively prevents unauthorized users from logging in to the S3700. The S3700 supports authentication methods such as local authentication, RADIUS authentication, and HWTACAS+ authentication.
S3700HI Ethernet Switches Product Description 4 Service Features Packet Filtering Packet filtering is used to filter out invalid or unwanted packets. The S3700 filters packets based on user-defined rules. For example, it filters packets by checking the MAC address, IP address, port number, and VLAN ID of packets. Packet filtering does not check the session status or analyze the data. By filtering packets, the S3700 can effectively control the packets passing through it. 4.6.
S3700HI Ethernet Switches Product Description 4 Service Features 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, policy scheduling, and accounting for the traffic, the ARs need to perform Layer 3 forwarding for the traffic of different user hosts in different networks. The ARs, however, cannot forward packets through Layer 2 switching.
S3700HI Ethernet Switches Product Description l 4 Service Features The DHCP server appends the Option 82 field to a Response message. The S3700 analyzes the Option 82 field, determines a forwarding interface, removes the Option 82 field, and then forwards the message to a user. Option 82 can be implemented in two modes on the S3700, Option 82 insert and Option 82 rebuild. The Option 82 field contains the user circuit IDs.
S3700HI Ethernet Switches Product Description 4 Service Features convergence implements association between Smart Link and Monitor Link. When no upstream links exist, the S3700 disables the downstream interface and switches traffic between different paths through the interface association mechanism. 4.9.4 Ethernet OAM Conforming to IEEE 802.
S3700HI Ethernet Switches Product Description 4 Service Features The S3700 supports Network Quality Analysis (NQA), which sends test packets to analyze the network performance and quality of service. NAQ can provide various network performance parameters, including delay variation, total delay of the HTTP application, TCP connection delay, FTP connection delay, and file transfer rate.
S3700HI Ethernet Switches Product Description 5 Networking and Applications 5 Networking and Applications About This Chapter 5.1 Access Device for Enterprise Network or Campus Network 5.2 Desktop Access 5.3 iStack 5.4 Core Device for Small Enterprise Network Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 5 Networking and Applications 5.1 Access Device for Enterprise Network or Campus Network On the enterprise network or campus network shown in Figure 5-1, the S3700s connect to terminals using 100 Mbit/s electrical interfaces, and connect to aggregation switches using 1000 Mbit/s optical or electrical interfaces. The aggregation switches connect to the backbone network using bundles of 1000 Mbit/s interfaces or 10 Gbit/s interfaces.
S3700HI Ethernet Switches Product Description 5 Networking and Applications Figure 5-2 Desktop access 10G S5700 1G S3700 100M PC IP Phone Notebook 5.3 iStack As shown in Figure 5-3, iStack improves performance and reliability of the access layer and aggregation layer. The S3700s use the iStack technology to form a stack system, implementing the distributed forwarding structure and fast fault recovery. The stack system increases the number of user interfaces and improves packet processing capability.
S3700HI Ethernet Switches Product Description 5 Networking and Applications Figure 5-3 iStack CS S S9700 10G iS ta ck S5700 1G iS ta ck S3700 100M PC 5.4 Core Device for Small Enterprise Network As shown in Figure 5-4, the S3700s functioning as core switches on the small-sized enterprise network have powerful aggregation and routing capabilities.
S3700HI Ethernet Switches Product Description 6 6 Maintenance and Network Management System Maintenance and Network Management System About This Chapter 6.1 Maintenance and Management 6.2 eSight Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 6 Maintenance and Network Management System 6.1 Maintenance and Management 6.1.1 Various Configuration Methods Configuration Modes The S3700 supports the following configuration and management modes: l Command line A user connects to the console port of the S3700 through the console terminal or connects to the VLANIF interface through Telnet, and then configures various functions and sets parameters in the command line interface (CLI).
S3700HI Ethernet Switches Product Description 6 Maintenance and Network Management System l Provides the electronic labels. A user can view the basic information about the SCU and optical modules through the CLI, and back up the information to an external server through FTP. l Supports the display of the software version, module status, ambient temperature, CPU usage, and memory usage. 6.1.
S3700HI Ethernet Switches Product Description l 6 Maintenance and Network Management System Local upgrade When the S3700 is powered on, the software can be loaded and upgraded through the BootROM menu. l Remote in-service upgrade When the S3700 runs normally, it can download the software through FTP or TFTP. The new software is run when the S3700 is restarted. This realizes the remote seamless software upgrade.
S3700HI Ethernet Switches Product Description 6 Maintenance and Network Management System eSight allows you to query devices, frames, boards, subcards, and ports. l Report Management eSight generates instant and periodic reports, and allows you to export reports to a file in any of the following formats: PDF, Excel, Word, and PowerPoint. eSight provides a variety of report templates, and it also provides a report design tool that allows you to flexibly customize report templates.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications 7 System Technical Specifications About This Chapter 7.1 Physical Specifications 7.2 Optical Module Attributes 7.3 System Configuration 7.4 Performance and Capacity This section describes the performance specifications of the software and hardware of the S3700. 7.5 List of Software Features Issue 05 (2012-10-20) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications 7.1 Physical Specifications Table 7-1 Physical specifications Item Description Dimensions (width x depth x height) S3700-26C-HI: 442.0 mm x 220.0 mm x 43.6 mm Maximum power (full configuration) S3700-26C-HI: 50 W Weight Full configura tion ≤ 6.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications 7.2 Optical Module Attributes Table 7-2 Attributes of the SFP (FE) optical module Attribute Specification Transmission distance 2 km Center wavelength 1310 nm Transmitting power -19.0 dBm to -14.0 dBm Receiver sensitivity -30.0 dBm Overload power -14.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Attribute Specification Extinction ratio 8.2 dB 8.5 dB 8.5 dB 10.0 dB 10.0 dB Type of the optical connector LC LC/PC LC/PC LC LC Fiber type Single mode Single mode Single mode Single mode Single mode Table 7-4 ESFP optical module (GE) attributes Issue 05 (2012-10-20) Item Description Trans missio n distan ce 0.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Item Description Conne ctor type LC Fiber type Multi mode Single-mode Table 7-5 Attributes of the ESFP (CWDM) optical module Issue 05 (2012-10-20) Attribu te Specification Transmi ssion distance 80 km 80 km 80 km 80 km 80 km 80 km 80 km 80 km Center wavelen gth 1571 nm 1591 nm 1551 nm 1511 nm 1611 nm 1491 nm 1531 nm 1471 nm Transmi tting power 0 dBm to 5.0 dBm 0 dBm to 5.0 dBm 0 dBm to 5.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications 7.3 System Configuration Table 7-6 System configuration Item Parameter Processor S3700-26C-HI: 1GHz Switching capacity l S3700-26C-HI: 12.4Gbit/s Packet forwarding capacity l S3700-26C-HI: 9.2Mpps DDR memory 512M for S3700-26C-HI Flash Memory 64M for S3700-26C-HI 7.4 Performance and Capacity This section describes the performance specifications of the software and hardware of the S3700.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Attribute Service Feature Specifications QoS Number of QoS queues on a port 8 CAR 8 kbit/s ACLv4 Number of IPv4 ACLs supported:Ingress 1K; Egress 256 ACLv6 Number of IPv6 ACLs supported:Ingress 512; Egress 256 L3VPN Number of VRFs 127 IP unicast Number of IPv4 routing entries and IPv4 FIB entries 12K Number of IPv6 routing entries and IPv6 FIB entries 6K Number of static multicast routes 256 Number of L2
S3700HI Ethernet Switches Product Description Attribute 7 System Technical Specifications Service Feature Specifications Smart Link l Maximum number of instances supported in the system: 48 l Maximum number of Smart Link groups supported in the system: 16 MSTP l Maximum number of instances supported in the system: 48 SEP l Maximum number of segments supported in the system: 16 7.
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Attribute Description Smartlink l SmartLink l SmartLink multi-instance l MonitorLink Ethernet loop protection LLDP LLDP MSTP l STP l RSTP l MSTP l BPDU protection, Root protection, loop protection l Partitioned STP and BPDU tunnels RRPP l RRPP protective switchover l Single RRPP ring, tangent RRPP rings, and intersecting RRPP rings l Hybrid networking of RRPP rings and other ring networks IPv4/IPv6 forwardin g IPv4
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Attribute Device reliability Description BFD l Basic BFD functions l BFD for OSPF l BFD for IS-IS l BFD for BGP l BFD for PIM Layer 2 multicast Others VRRP Layer 2 multicast l IGMP Snooping l Prompt leave l Multicast traffic control l Inter-VLAN multicast replication l Controllable multicast Ethernet OAM EFM OAM l Neighbor discovery l Link monitoring l Fault notification l Remote loopback CFM OAM l CCM check l MAC
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Attribute Description Queue scheduling l PQ l DRR l PQ+DRR l WRR l PQ+WRR Configura tion and maintenan ce Congestion avoidance l S3700-26C-HI: WRED Rate limit on outbound interfaces Rate limit on outbound interfaces Terminal service l Configurations through command lines l Help information in English and Chinese l Login through console and Telnet terminals l Information exchange between terminals through the send func
S3700HI Ethernet Switches Product Description 7 System Technical Specifications Attribute Security and managem ent Description System security l Hierarchical command line protection to prevent unauthorized users from accessing the S3700 l SSH v2.
