Product Overview
Huawei S5700 series gigabit enterprise switches (S5700 for short) are next-generation energy-saving switches developed
by Huawei to meet the demand for high-bandwidth access and Ethernet multi-service
aggregation. Based on the cutting-edge hardware and Huawei Versatile Routing
Platform (VRP) software, the S5700 provides a large switching capacity and
high-density GE ports to implement 10 Gbit/s upstream transmissions. The S5700
is for use in various enterprise network scenarios. For example, it can
function as an access or aggregation switch on a campus network, a gigabit
access switch in an Internet data center (IDC), or a desktop switch to provide
1000 Mbit/s access for terminals. The S5700 is easy to install and maintain,
reducing workloads for network planning,construction, and maintenance. The
S5700 uses advanced reliability, security, and energy conservation
technologies, helping enterprise customers build a next generation IT network.
The S5700 is a 1 U high case-shaped device
and comes in a standard version (SI) or an enhanced version (EI). The SI
version provides Layer 2 functions and basic Layer 3 functions. The EI version
supports complex routing protocols and provides more functions than the SI
version.
Product Features
Powerful support for services
• The S5700
supports IGMP v1/v2/v3 snooping, IGMP filter, IGMP fast leave, and IGMP proxy.
It supports line-speed replication of multicast packets between VLANs,
multicast load balancing among member interfaces of a trunk, and controllable
multicast, meeting requirements for IPTV services and other multicast services.
• The S5700
provides the Multi-VPN-Instance CE (MCE) function to isolate users in different
VLANs on a device, ensuring data security and reducing costs.
Comprehensive reliability mechanisms
• Besides STP,
RSTP, and MSTP, the S5700 supports enhanced Ethernet reliability technologies
such as Smart Link and RRPP, which implement millisecond-level protection
switchover and ensure network reliability. It also provides Smart Link
multi-instance and RRPP multi-instance to implement load balancing among links,
optimizing bandwidth usage.
• The S5700
supports enhanced trunk (E-Trunk) that enables a CE to be dual-homed to two PEs
(S5700s). E-Trunk greatly enhances link reliability between devices and
implements link aggregation and load balancing between devices. This improves
reliability of access devices.
• The S5700
supports the Smart Ethernet Protection (SEP) protocol, a ring network protocol
applied to the link layer on an Ethernet network. SEP can be used on open ring
networks and can be deployed on upper-layer aggregation devices to provide fast
switchover (within 50 ms), ensuring non-stop transmission of services. SEP features
simplicity, high reliability, fast switchover, easy maintenance, and flexible
topology, facilitating network planning and management.
• The S5700
supports redundant power supplies, and can use an AC power supply and a DC
power simultaneously.
Users can choose a single power supply or
use two power supplies to ensure device reliability.
• The S5700EI
supports VRRP, and can set up VRRP groups with other Layer 3 switches. VRRP
provides redundant routes to ensure stable and reliable communication. Multiple
equal-cost routes to an uplink device can be configured
on the S5700 to provide route redundancy.
When an active route is unreachable, traffic is switched to a backup route.
• The S5700
supports BFD, which provides millisecond-level fault detection for protocols
such as OSPF, IS-IS, VRRP, and
PIM to improve network reliability.
Complying with IEEE 802.3ah and 802.1ag, the S5700 supports point-to-point
Ethernet fault management and can detect
faults in the last mile of an Ethernet link to users.
Well-designed QoS policies and security
mechanisms
• The S5700
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 inbound
or outbound direction on an interface. The S5700 supports a flow-based two-rate
three-color CAR. Each port supports eight priority queues and multiple queue
scheduling algorithms such as WRR, DRR, SP, WRR+SP, and DRR+SP. All of these
ensure the quality of voice, video, and data services.
• The S5700
provides multiple security measures to defend against Denial of Service (DoS)
attacks, and attacks against networks or users. DoS attack types include SYN
Flood attacks, Land attacks, Smurf attacks, and ICMP Flood attacks. Attacks to
networks refer to STP BPDU/root attacks. Attacks to users include bogus DHCP
server attacks, man-in-themiddle attacks, IP/MAC spoofing attacks, DHCP request
flood attacks. DoS attacks that change the CHADDR field in
DHCP packets are also attacks against
users.
• The S5700
supports DHCP snooping, which generates user binding entries based on MAC
addresses, IP addresses, IP address leases, VLAN IDs, and access interfaces of
users. DHCP snooping discards invalid packets that do not match any binding
entries, such as ARP spoofing packets and IP spoofing packets. This prevents
man-in-the-middle attacks
to campus networks that hackers initiate by
using ARP packets. The interface connected to a DHCP server can be configured
as a trusted interface to protect the system against bogus DHCP server attacks.
• The S5700
supports strict ARP learning, which prevents ARP spoofing attacks that will
exhaust ARP entries. It also provides IP source check to prevent DoS attacks
caused by MAC address spoofing, IP address spoofing, and MAC/IP spoofing.
• The S5700
supports centralized MAC address authentication, 802.1x authentication, and
NAC. It authenticates users based on statically or dynamically bound user information
such as the user name, IP address, MAC address, VLAN ID, access interface, and
flag indicating whether antivirus software is installed. VLANs, QoS policies,
and ACLs can be applied to users dynamically.
• The S5700
can limit the number of MAC addresses learned on an interface 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.
Easy deployment and maintenance free
• The S5700
supports automatic configuration, plug-and-play, deployment using a USB flash
drive, and batch remote upgrade. These capabilities simplify device management
and maintenance and reduce maintenance costs. The S5700 supports SNMP v1/v2/v3
and provides flexible methods for managing devices. Users can manage the S5700
using the CLI, Web NMS, Telnet, and HGMP. The NQA function helps users with
network planning and upgrades. In addition, the S5700 supports NTP, SSH v2, HWTACACS+,
RMON, log hosts, and port-based traffic statistics.
• The S5700
supports GVRP, which dynamically distributes, registers, and propagates VLAN
attributes to reduce manual configuration workloads of network administrators
and to ensure correct VLAN configuration. In a complex network topology, GVRP
simplifies VLAN configuration and reduces network communication faults caused
by incorrect VLAN configuration.
• The S5700
supports MUX VLAN. MUX VLAN isolates Layer 2 traffic between interfaces in a
VLAN. Interfaces in a subordinate separate VLAN can communicate with ports in
the principal VLAN but cannot communicate with each other. MUX VLAN is usually
used on an enterprise intranet to isolate user interfaces from each other but
allow them to communicate with server interfaces. This function prevents
communication between network devices connected to certain interfaces or
interface groups but allows the devices to communicate with the default gateway
PoE function
• The S5700
PWR can use PoE power supplies with different power levels to provide -48V DC
power for powered devices (PDs) such as IP Phones, WLAN APs, and Bluetooth APs.
In its role as power sourcing equipment (PSE), the S5700 PWR complies with IEEE
802.3af and 802.3at (PoE+) and can work with PDs that are incompatible with
802.3af or 802.3at. Each port provides a maximum of 30 W power, complying with
IEEE 802.3at. The PoE+ function increases the maximum power of each port and
implements intelligent power management for high-power consumption applications.
This facilitates the use of PDs. PoE ports can work in power-saving mode. The
S5700 PWR provides improved PoE solutions. Users can configure whether and when
a PoE port supplies power.
High scalability
• The S5700
supports intelligent stacking (iStack). Multiple S5700s can be connected with
stack cables to set up a stack, which functions as a virtual switch. A stack
consists of a master switch, a backup switch, and several slave switches. The
backup switch takes over services when the master switch fails, reducing
service interruption time. Stacks support intelligent upgrade so that users do
not need to change the software version of a switch when adding it to a stack.
The iStack function allows users to connect multiple switches with stack cables
to expand system capacity. These switches can be managed using a single IP
address, which greatly reduces the costs of system expansion, operation, and
maintenance. Compared with traditional networking technologies,
iStack has advantages in scalability, reliability,
and system architecture.
Various IPv6 features
• The S5700
supports IPv4/IPv6 dual stack and can migrate from an IPv4 network to an IPv6
network. S5700 hardware supports IPv4/IPv6 dual stack, IPv6 over IPv4 tunnels
(including manual tunnels, 6to4 tunnels, and ISATAP tunnels), and Layer 3
line-speed forwarding. The S5700 can be deployed on IPv4 networks, IPv6
networks, or networks that run both IPv4 and IPv6. This makes networking
flexible and enables a network to migrate from IPv4 to IPv6.
Applications
On Large-sized Enterprise Networks
The S5700
can function as an access device on a large-sized enterprise network or an
aggregation device on a small- or
medium-sized
campus network. It supports link aggregation and dual-homing to improve network
reliability.
In Data Centers
The S5700
can be used in a data center. It connects to gigabit servers and aggregates
traffic from the servers to uplink devices through trunk links. If multiple
servers are available, an S5700 stack can be used to facilitate network
maintenance and improve network reliability.
1000 Mbit/s Access Rate for Terminals
Several
S5700s can constitute a stack to provide 1000 Mbit/s access rate for terminals.
Only four pairs of optical fibers are required to connect the stack to uplink
devices. This reduces the number of optical fibers and ports needed on uplink
devices and enhances network reliability.
It refers from:
http://www.datainter.cz
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