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S12700 Series Agile Switches

Super-flexible core switch for large-scale, converged enterprise networks; integrated wired and Tbit/s wireless communications support; fully programmable for easy customization and a smooth migration to Software Defined Networking (SDN).

  • High capacity, intelligent switching for converged networks; total switching capacity of over 37 Tbit/s; forwarding rates to 12,960 Mpps; supports up to 24 x 100 GE ports or 576 x 10 GE ports; 1.5 GB buffers on line cards accommodate high-bandwidth applications and traffic surges
  • Agility for the enterprise; fully-programmable Ethernet Network Processor (ENP) chip enables rapid development of new services; customize forwarding models, behaviors, and lookup algorithms without replacing hardware
  • Huawei's Super Virtual Fabric (SVF) technology and updated eSight management tools provide highly granular control over applications, devices, and up to 65,536 users per switch.
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S12700 Agile Switches let you build a fully converged network supporting high-speed wired and wireless communications with equal resilience. As the core switch in an enterprise network, the S12700 ensures end-to-end performance and manageability for traditional IT and diverse Bring-Your-Own-Device (BYOD) environments.

Highlights – Features and Benefits

Huawei’s first fully-programmable, SDN-ready switch lets you build and manage a large-scale network with highly granular management capabilities for both wired and wireless communications.

Build a more agile, converged network and provide new services faster with Huawei’s S12700 Agile Switch

  • Huawei’s specialized Ethernet Network Processor (ENP) chip delivers high-performance packet processing and traffic control capabilities; Protocol Oblivious Forwarding (POF) supports multi-stage network deployment and rapid provisioning of new services.
  • Fully-programmable, open interfaces let you develop new services, protocols, forwarding models, behaviors, and algorithms – not possible with traditional ASIC chips. Empowers your IT organization and vendors to deliver innovative solutions and services without replacing or upgrading hardware.
  • Native wireless Access Controllers (ACs) let you build a wireless network without additional AC hardware; Each S12700 Switch provides 4,096 ACs and can support up to 65,536 users. Support wireless communications at Tbit/s line speeds to accommodate high-bandwidth applications and alleviate bottlenecks associated with independent AC devices.

The S12700 Agile Switch makes highly granular management simple, consistent, and secure for every user and device


  • Unified user management features authenticate both wired and wireless users, ensuring responsive and consistent experiences for every user. Authentication methods include, 802.1X, MAC, and Portal authentication; visual interfaces simplify monitoring and management – including automated processes – and support user-centric management based on domains, user groups, or timeframes.
  • Huawei’s exclusive Packet Conservation Algorithm for the Internet (iPCA) provides constant, end-to-end monitoring of every network node for every service, quickly detecting temporary interruptions and faulty ports.
  • Super Virtual Fabric (SVF) technology virtualizes the physical network of core switches, aggregation switches, and APs into a virtual “super switch,” adding flexibility and further simplification to managing the network.

Breakthrough processor delivers high capacity, fully-programmable, energy-efficient line cards in an Ethernet switch designed for the Enterprise

The Huawei ENP chip represents a major advancement over traditional ASIC or NP processors:


  • Support for both the newer OpenFlow and traditional Ethernet data packet forwarding, providing a migration path to Software Defined Networking (SDN).
  • Onboard support of 16 million flows, providing much higher performance than traditional switches; the S12700 provides 1 million MAC address entries and 3 million FIB entries, meeting the requirements of route-intensive applications such as television broadcasting across a Metropolitan Area Network (MAN)
  • Support for 1 million NetStream (aka NetFlow) entries enables highly granular traffic statistics on large-scale enterprise and university campus networks.
  • Large 1.5 GB buffer on each line card to prevent packet loss upon traffic bursts, and to support high-quality video services. Traditional switches only provide 4 MB buffer per card, which cannot ensure high-quality video stream transmission.
  • High-density Ethernet ports: 48 x 10 GE or 2 x 100 GE line cards; configure up to 24 x 100 GE ports or 576 x 10 GE ports per S12700 Switch to support high-bandwidth applications like multimedia and video conferencing.

End-to-end reliability design provides carrier-grade resiliency across the entire network

  • 2nd generation Cluster Switch System (CSS2) technology connects switches through switch fabric unit hardware channels, not through service cards. This minimizes the impact of software failures, reduces the risk of service interruption caused by service cards, and significantly reduces transmission latency.
  • CSS2 supports 1+N backup of MPUs; a cluster can run stably as long as one MPU of any chassis in the cluster is working normally. This is an improvement over traditional service port clustering, which requires operational attention to each switch chassis.
  • Transmission of control packets and data packets are transmitted over independent channels, which prevents a cluster from splitting. Even if all links between switch fabric units fail, the cluster will not split because these packets can still be transmitted over the control channels between MPUs.
  • Comprehensive link monitoring and protection features provide 50 ms end-to-end protection switching: Ethernet Operations, Administration, and Maintenance (Eth-OAM), Bidirectional Forwarding Detection (BFD), G.8032 Ethernet Ring Protection Switching, and Smart Ethernet Protection (SEP) enable a campus network that responds quickly to topology changes and provides the most reliable services.
Switching capacity 12.32/27.04 Tbit/s 17.44/37.28 Tbit/s
Packet forwarding rate 6,240 /9,120 Mpps 9,120/12,960 Mpps
MPU slots 2 2
SFU slots 44
Service card slots 8 12
Redundancy design MPUs, SFUs, power supplies, and fan modules
CSS21+N backup of MPUs in a cluster
Up to 1.92 Tbit/s cluster bandwidth, 4 us inter-chassis transmission latency
Wireless network management Native AC
AP access control, AP region management, and AP profile management
Radio profile management, uniform static configuration, and centralized dynamic management
Basic WLAN services, QoS, security, and user management
Deployment of ACs on different network layers
VLANAccess, trunk, and hybrid interface type, auto-negotiation of LNP links
Default VLAN
VLAN switching
QinQ and selective QinQ
MAC address-based VLAN assignment
ARP256K ARP entries
MAC address 1M MAC address entries
Dynamic MAC address learning and aging
Static, dynamic, and blackhole MAC address entries
Source MAC address filtering
MAC address limiting based on ports and VLANs
Ring network protection Spanning Tree Protocol (STP) (IEEE 802.1d), RSTP (IEEE 802.1w), and MSTP (IEEE 802.1s)
Bridge Protocol Data Unit (BPDU), root protection, and loop protection
BPDU tunnel
G.8032 Ethernet Ring Protection Switching (ERPS)
IP routing 3M IPv4 routing entries
512K IPv6 routing entries
IPv4 dynamic routing protocols, such as RIP, OSPF, IS-IS, and BGP
IPv6 routing protocols, such as RIPng, OSPFv3, IS-ISv6, and BGP4+
Multicast 128,000 multicast routing entries
IGMPv1/v2/v3 and IGMP v1/v2/v3 snooping
Multicast Source Discovery Protocol (MSDP) and Multiprotocol Extensions for BGP (MBGP)
Fast leave
Multicast traffic control
Multicast querier
Multicast protocol packet suppression
Multicast Call Admission Control (CAC)
Multicast ACL
MPLS Basic MPLS functions
MPLS Operations, Administration, and Maintenance (OAM)
MPLS Traffic Engineering (TE)
Reliability Link Aggregation Control Protocol (LACP) and E-Trunk
Virtual Router Redundancy Protocol (VRRP) and Bidirectional Forwarding Detection (BFD) for VRRP
BFD for BGP/IS-IS/OSPF/static route
Non-Stop Forwarding (NSF) and Graceful Restart (GR) for BGP/IS-IS/OSPF/LDP
TE Fast ReRoute (FRR) and IP FRR
Eth-OAM 802.3ah and 802.1ag (hardware)
Device Link Detection Protocol (DLDP)
In-Service Software Upgrade (ISSU)
QoS256K ACLs
Traffic classification based on Layer 2 headers, Layer 3 protocols, Layer 4 protocols, and 802.1p priority
ACLs and actions such as Committed Access Rate (CAR), re-marking, and scheduling
Queuing algorithms, such as SP, WRR, DRR, SP + WRR, and SP + DRR
Congestion avoidance mechanisms, including (WRED) and tail drop
5-level H-QoS
Traffic shaping
Configuration and maintenance Terminal access services such as console port login, Telnet, and SSH
Network management protocols, such as SNMPv1/v2/v3
File uploading and downloading through FTP and TFTP
BootROM upgrade and remote in-service upgrade
Hot patches
User operation logs
Security and managementMAC address, Portal, 802.1x, and Dynamic Host Configuration Protocol (DHCP) snooping triggered authentication
RADIUS and HWTACACS authentication for login users
Command line authority control based on user levels, preventing unauthorized users from using command configurations
Defense against DoS attacks, Transmission Control Protocol (TCP) SYN Flood attacks, User Datagram Protocol (UDP) Flood attacks, broadcast storms, and heavy traffic attacks
1K CPU hardware queues for hierarchical scheduling and protection of protocol packets on the control plane
Remote Network Monitoring (RMON)
Security protection *Firewall
Network Address Translation (NAT)
Intrusion Protection System (IPS)
Load balancing Analog Digital Conversion (ADC)
Buffer capacity 1.5 GB per card
Energy saving Energy Efficient Ethernet (802.3az)
Dimensions (H x W x D in mm) 663.95 x 442 x 489, 15U 832.75 x 442 x 489, 19U
Weight (empty chassis) 19.8 kg 38.45 kg
Operating voltage DC: –38.4V to –72V AC: 90V to 290V
Total power capacity 6,600W 6,600W