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Huawei S6720S-26Q-LI-24S-AC switch 24x SFP+ 2x QSFP+ AC power supply
Brand: Huawei
Product Code: HUA-S6720S-26QLI24SA
Catalog number: 8066
Warranty (months):

Product on demand

Price
55 288,24
68 004,54incl. tax
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Description

The S6720-LI series switches (S6720-LI) are next-generation simplified 10GE fixed switches and can be used as 10GE access switches on campus networks and data center networks.

The S6720-LI provides line-rate 10GE access ports and 40GE uplink ports. In addition, the S6720-LI delivers a wide variety of services, comprehensive security control policies, and various QoS features to help customers build scalable, reliable, manageable, and secure campus and data center networks.

  • 24 x 10GE SFP+ ports, 2 x 40GE QSFP+ ports
  • Built-in AC power supply and RPS
  • USB
  • Forwarding performance: 240 Mpps
  • Switching capacity: 1.28 Tbit/s

High-Density 10GE Access Ports and 40GE Uplink Ports

To provide sufficient bandwidth for users, more and more servers use 10GE network adapters. Each S6720-LI provides up
to 32 line-rate 10GE ports and two line-rate 40GE QSFP+ ports.

Ports of the S6720-LI support GE access and 10GE access and can identify optical module types, maximizing the return on investment and allowing users to flexibly deploy services.

Comprehensive Security Control Policies

The S6720-LI provides multiple security measures to defend against Denial of Service (DoS) attacks, as well as attacks on networks or users. DoS attacks include SYN flood, Land, Smurf, and ICMP flood attacks. Attacks on networks refer to STP BPDU/root attacks. Attacks on users include bogus DHCP server attacks, man-in-the-middle attacks, IP/MAC spoofing attacks, and DHCP request flood attacks. DoS attacks that change the CHADDR field in DHCP packets are also attacks against users.

The S6720-LI supports DHCP snooping, which generates user binding entries. DHCP snooping discards invalid packets
that do not match any binding entries, such as ARP spoofing packets and IP spoofing packets. This prevents hackers from using ARP packets to initiate attacks on campus networks. DHCP snooping trusted ports can be specified to ensure that users connect only to the authorized DHCP server.

The S6720-LI supports strict ARP learning. This feature prevents ARP spoofing attackers from exhausting ARP entries so that users can connect to the Internet normally. The S6720-LI supports IP source check to prevent DoS attacks caused by MAC address spoofing, IP address spoofing, and MAC/IP spoofing.

The S6720-LI supports centralized MAC address authentication and 802.1X authentication. It authenticates users based
on statically or dynamically bound user information such as the user name, IP address, MAC address, VLAN ID, port number, and flag indicating whether antivirus software is installed. VLANs, QoS policies, and ACLs can be applied to users dynamically.

The S6720-LI can limit the number of MAC addresses learned on a port to prevent attackers from exhausting MAC address entries by using bogus source MAC addresses. This function minimizes packet flooding that occurs when MAC addresses of users cannot be found in the MAC address table.

Comprehensive Reliability Mechanisms

The S6720-LI supports MSTP multi-process that enhances the existing STP, RSTP, and MSTP implementation. This function increases the number of MSTIs supported on a network. It also supports enhanced Ethernet reliability technologies such as Smart Link and RRPP, which implement millisecond-level protection switchover and ensure network reliability. Smart Link and RRPP both support multi-instance to implement load balancing among links, improving bandwidth use efficiency.

The S6720-LI supports enhanced trunk (E-trunk). A CE can be dual-homed to two PEs through Eth-Trunk links. This implements inter-device link aggregation and link load balancing, and greatly improves reliability of access devices.

The S6720-LI supports the Smart Ethernet Protection (SEP) protocol, a ring network protocol applied to the link layer of an Ethernet network. SEP can be used on open ring networks and provides millisecond-level switchover to ensure nonstop services. SEP features simplicity, high reliability, fast switchover, easy maintenance, and flexible topology, facilitating network planning and management.

The S6720-LI supports G.8032, also called Ethernet Ring Protection Switching (ERPS). ERPS is based on traditional Ethernet MAC and bridging functions. It uses the mature Ethernet OAM and Ring Automatic Protection Switching (Ring APS or R-APS) technologies to implement millisecond-level protection switchover on Ethernet. ERPS supports multiple services and provides flexible networking options, reducing the OPEX and CAPEX.

The S6720-LI supports VRRP. Two S6720-LIs can form a VRRP group to ensure nonstop and reliable communication. Multiple equal-cost routes to an upstream device can be configured on the S6720-LI to provide route redundancy. When an active route is unreachable, traffic is switched to a backup route.

Various QoS Control Mechanisms

The S6720-LI implements complex traffic classification based on packet information such as the 5-tuple, IP preference, ToS, DSCP, IP protocol type, ICMP type, TCP source port, VLAN ID, Ethernet protocol type, and CoS. ACLs can be applied to the inbound or outbound direction to filter packets. The S6720-LI supports a flow-based two-rate three-color CAR. Each port supports eight priority queues and multiple queue scheduling algorithms such as WRR, DRR, PQ, WRR+PQ, and DRR+PQ. All of these ensure the quality of voice, video, and data services.

High Scalability

The S6720-LI supports intelligent stack (iStack) and virtualizes multiple switches into one logical switch. A port of the S6720-LI can be configured as a stack port using a command for flexible stack deployment. The distance between stacked switches is further increased when the switches are connected with optical fibers. Compared with a single device, iStack has advantages on scalability, reliability, performance, and overall architecture. A new switch can join a stack to increase the system capacity or replace a faulty member switch without interrupting services. Compared with stacking of modular switches, the iStack function can increase system capacity and port density with no restriction of the hardware architecture. Multiple devices in a stack can be considered as one logical device. These switches can be managed using a single IP address, which greatly reduces system expansion and O&M costs.

Convenient Management

The S6720-LI supports automatic configuration, plug-and-play, deployment using a USB flash drive, and batch remote upgrade. These capabilities simplify device management and maintenance, and greatly reduce maintenance costs.

The S6720-LI supports SNMPv1/v2/v3 and provides flexible methods for managing and maintaining devices, such as CLI and Web NMS. The NQA function helps users with network planning and upgrades. In addition, the S6720-LI supports NTP, SSH v2, HWTACACS, RMON, log hosts, and port-based traffic statistics.

The S6720-LI supports GVRP, which dynamically distributes, registers, and propagates VLAN attributes to reduce the manual configuration workloads of network administrators and ensure correct VLAN configuration.

The S6720-LI supports MUX VLAN that isolates Layer 2 traffic between ports in a VLAN. MUX VLAN defines principal VLANs and subordinate VLANs. Subordinate VLANs can communicate with the principal VLAN but cannot communicate with each other. This function prevents communication between network devices connected to certain ports or port groups but allows the devices to communicate with the default gateway. MUX VLAN is usually used on an enterprise intranet to isolate user ports from each other but allow them to communicate with server ports.

Complying with IEEE 802.3ah and 802.1ag, the S6720-LI supports point-to-point Ethernet fault management and can detect faults in the last mile of an Ethernet link to users. Ethernet OAM improves the Ethernet network management and
maintenance capabilities and ensures a stable network.

Various IPv6 Features

The S6720-LI supports various IPv6 routing protocols including RIPng and OSPFv3. It uses the IPv6 Neighbor Discovery Protocol (NDP) to manage packets exchanged between neighbors. It also provides the Path MTU Discovery (PMTU) mechanism to select a proper MTU on the path from the source to the destination, optimizing network resources and obtaining the maximum throughput.

Intelligent O&M

The S6720-LI provides telemetry technology to collect device data in real time and send the data to Huawei campus network analyzer CampusInsight. The CampusInsight analyzes network data based on the intelligent fault identification algorithm, accurately displays the real-time network status, effectively demarcates and locates faults in a timely manner, and identifies network problems that affect user experience, accurately guaranteeing user experience.

The S6720-LI supports a variety of intelligent O&M features for audio and video services, including the enhanced Media Delivery Index (eMDI). With this eDMI function, the S6720-LI can function as a monitored node to periodically conduct statistics and report audio and video service indicators to the CampusInsight platform. In this way, the CampusInsight platform can quickly demarcate audio and video service quality faults based on the results of multiple monitored nodes.

Intelligent Upgrade

Switches support the intelligent upgrade feature. Specifically, switches obtain the version upgrade path and download the
newest version for upgrade from the Huawei Online Upgrade Platform (HOUP). The entire upgrade process is highly automated and achieves one-click upgrade. In addition, preloading the version is supported, which greatly shortens the upgrade time and service interruption time.

The intelligent upgrade feature greatly simplifies device upgrade operations and makes it possible for the customer to upgrade the version independently. This greatly reduces the customer's maintenance costs. In addition, the upgrade policies on the HOUP platform standardize the upgrade operations, which greatly reduces the risk of upgrade failures.

High-Performance VRP Software System

Huawei S series switches build on a unified Versatile Routing Platform (VRP) software system, meeting the growing network scale and the evolving Internet technologies and guaranteeing network services and network quality.

VRP is a network operating system developed by Huawei with independent intellectual property rights. It can run on multiple hardware platforms and provide unified network, user, and management views. VRP provides flexible application solutions for users. In addition, VRP is a future-proof platform that maximally protects customer investments.

The VRP platform is focused on IP services and uses a component-based architecture to provide more than 300 features. Besides, VRP stands out for its application-based tailorable and scalable capabilities.

Specification:

S6720-26Q-LI-24S-AC
Fixed port
10GE port 24
40GE port 2
Management port
ETH management port Supported
Console port (RJ45) Supported
USB port USB 2.0
CPU
Frequency 1 GHz
Cores 2
Memory
Memory (RAM) 1 GB
Flash Hardware: 512 MB, of which 240 MB is available for users
Power supply system
Power supply type Built-in AC
Power supply redundancy Built-in single power supply and RPS in 6:1 mode
RPS Supported
Rated voltage range

100 - 40 V AC

50/60 Hz

Maximum voltage range

90 - 264 V AC

47 - 63 Hz

Maximum input current 3 A
Maximum power consumption of the device 100.2 W
Power consumption in the case of 30% traffic load 67.1 W
Heat dissipation system
Heat dissipation mode Air-cooled heat dissipation and intelligent fan speed adjustment
Number of fan modules 3
Airflow Air flows in from the left side and front panel, and exhausts from the right side.
Maximum heat dissipation of the device (BTU/hour) 342
Physical specifications
Chassis dimensions (W x D x H, mm) 420 x 220 x 43.6
Chassis height 1 U
Chassis weight 4.2 kg
Environment parameters

Long-term operating temperature

0 - 1800 m:

0°C - 45°C


1800-5000 m:

The operating temperature decreases 1°C for every 220 m increase in altitude.

Short-term operating temperature

0 - 1800 m:

-5°C - 50°C

 

1800-5000 m: The operating temperature decreases 1°C for every 220 m
increase in altitude.

Storage temperature -40°C - 70°C
Relative humidity 5%-95% (non-condensing)
Noise under normal temperature (sound power) 46.5 dB(A)
Noise under high temperature (sound power) 72.9 dB(A)
Noise under normal temperature (sound pressure) 34.6 dB(A)
MTBF 39.2 years
Software
Ethernet features
Ethernet basics

Full-duplex, halfduplex, and auto-negotiation

Rate autonegotiation on an interface

Flow control on an interface

Jumbo frames

Link aggregation

Load balancing among links of a trunk

Transparent transmission of Layer 2 protocol packets

Device Link Detection Protocol (DLDP)

Link Layer Discovery Protocol (LLDP)

Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED)

Interface isolation

Broadcast traffic suppression on an interface

Multicast traffic suppression on an interface

Unknown unicast traffic suppression on an interface

VLAN broadcast traffic suppression

VLAN multicast traffic suppression

VLAN unknown unicast traffic suppression

VLAN

VLAN specification: 4094

VLANIF interface specification: 1024

Access mode

Trunk mode

Hybrid mode

QinQ mode

Default VLAN

VLAN assignment based on interfaces

VLAN assignment based on protocols

VLAN assignment based on IP subnets

VLAN assignment based on MAC addresses

VLAN assignment based on MAC address + IP address

VLAN assignment based on MAC address + IP address + interface number

Adding double VLAN tags to packets based on interfaces

VLAN mapping

Selective QinQ

MUX VLAN

Voice VLAN

Guest VLAN

GVRP

GARP

GVRP

MAC

MAC address: 32K

Automatic
learning of MAC
addresses

Automatic aging of MAC addresses

Static, dynamic,
and blackhole
MAC address
entries

Interface-based
MAC address
learning limiting

Sticky MAC

MAC address
flapping
detection

MAC address
spoofing defense

Port bridge

ARP

Static ARP

Dynamic ARP

ARP entry: 8K

ARP aging detection

Intra-VLAN proxy ARP

Routed proxy ARP

Ethernet loop protection
MSTP

STP

RSTP

MSTP

VBST

BPDU protection

Root protection

Loop protection

Defense against TC BPDU attacks

Loopback detection Loop detection on an interface
SEP SEP
Smart Link

Smart Link

Smart Link multi-instance

Monitor Link

RRPP

RRPP

Single RRPP ring

Tangent RRPP ring

Intersecting RRPP ring

Hybrid networking of RRPP rings and other ring networks

ERPS

G.8032 v1

G.8032 v2

ERPS semi-ring topology

ERPS closed-ring topology

IPv4/IPv6 forwarding
IPv4 and unicast routing

IPv4 static routing

VRF

DHCP client

DHCP server

DHCP relay

DHCP policy check

Routing policies

IPv4 routes: 8K

RIPv1

RIPv2

OSPF

Policy-based routing (PBR)

Multicast routing features

IGMPv1/v2/v3

PIM-DM

PIM-SM

MSDP

IPv4 multicast routes: 1,5K

IPv6 multicast routes: 0,5K

Multicast routing policies

RPF

IPv6 features

IPv6 protocol
stack

ND

ND entry

ND snooping

DHCPv6 snooping

RIPng

DHCPv6 server

Layer 2 multicast features
-

IGMPv1/v2/v3 snooping

IGMP snooping proxy

MLD snooping

Multicast traffic suppression

Inter-VLAN multicast replication

Device reliability
Stacking

Service
interface-based
stacking

Maximumnumber of stacked devices: 9

Stack bandwidth (Unidirectional): 176 Gb/s

VRRP VRRP standard protocol
Ethernet OAM
EFM (802.3ah)

Automatic discovery of links

Link fault detection

Link troubleshooting

Remote loopback

CFM (802.1ag)

Software-level CCM

802.1ag MAC ping

802.1ag MAC trace

OAM association Association between 802.1ag and 802.3ah
Y.1731

Unidirectional delay and jitter measurement

Bidirectional delay and jitter measurement

QoS features
Traffic classification

Traffic classification based on ACLs

Configuring traffic classification priorities

Matching the simple domains of packets

Traffic behavior

Traffic filtering

Traffic policing (CAR)

Modifying the packet priorities

Modifying the simple domains of packets

Modifying the packet VLANs

Traffic shaping

Traffic shaping on an egress interface

Traffic shaping on queues on an interface

Congestion avoidance Tail drop
Congestion management

Priority Queuing (PQ)

Weighted Deficit Round Robin (WDRR)

PQ+WDRR Weighted Round Robin (WRR)

PQ+WRR

ACL
Packet filtering at Layer 2 to Layer 4

Number of rules per IPv4 ACL: 2K

Number of rules per IPv6 ACL: 2K

Basic IPv4 ACL

Advanced IPv4 ACL

Basic IPv6 ACL

Advanced IPv6 ACL

Layer 2 ACL

User-defined ACL

Configuration and maintenance
Login and configuration management

Command line interface (CLI)- based configuration

Console terminal service

Telnet terminal service

SSH v1.5

SSH v2.0

SNMP-based
NMS for unified configuration

Web page-based configuration and management

EasyDeploy (client)

SVF

OPS

File system

Directory and file management

File upload and download

Monitoring and maintenance

eMDI

Hardware monitoring

Log information output

Alarm information output

Debugging information output

Port mirroring

Flow mirroring

Remote mirroring

Energy saving

Version upgrade

Version upgrade

Version rollback

Security
ARP security

ARP packet rate limiting

ARP anti-spoofing

Association between ARP and STP

Dynamic ARP Inspection (DAI)

Static ARP Inspection (SAI)

Egress ARP Inspection (EAI)

IP security

ICMP attack defense

IPSG for IPv4

IPSG user capacity: 1000

IPSG for IPv6

IPSGv6 user capacity: 512

Local attack defense CPU attack defense
MFF MFF
DHCP Snooping

DHCP snooping

Option 82 function

Dynamic rate limiting for DHCP packets

Attack defense

Defense against malformed packet attacks

Defense against UDP flood attacks

Defense against TCP SYN flood attacks

Defense against ICMP flood attacks

Defense against packet fragment attacks

Local URPF

User access and authentication
AAA

Local authentication

Local authorization

RADIUS authentication

RADIUS authorization

RADIUS accounting

HWTACACS authentication

HWTACACS authorization

HWTACACS accounting

NAC

802.1X authentication

MAC address authentication

Portal authentication

Hybrid authentication

Policy association Functioning as the access device
Network management
-

Ping

Tracert

NQA

NTP

sFlow

SNMP v1

SNMP v2c

SNMP v3

HTTP

HTTPS

RMON

NETCONF/YANG

Interoperability
-

VLAN-based Spanning Tree (VBST)

Link-type Negotiation Protocol (LNP)

VLAN Central Management Protocol (VCMP)