Powerful service processing capabilities

The S7700 supports distributed Layer 2/Layer 3 MPLS VPN functions, including MPLS, VPLS, HVPLS, and VLL, implementing VPN access for enterprise users.

The S7700 supports various Layer 2 and Layer 3 multicast protocols such as PIM SM, PIM DM, PIM SSM, MLD, and IGMP snooping. It can provide enterprises with multi-terminal high definition video surveillance and video conferencing services.

Carrier-class reliability and visual fault diagnosis

Huawei's high reliability design ensures that the S7700 is 99.999% reliable. The S7700 provides redundant backup for key components, including MPUs, power supply units, and fans, all of which are hot swappable.

The S7700 innovatively implements the CSS function through switch fabrics, and packets are only switched once when they are forwarded between chassis. This addresses the problem of low switching efficiency caused by multiple switching processes during inter-chassis forwarding in clusters established using line cards. The cluster provides the industry's highest cluster bandwidth 256 Gbit/s, In addition, inter-chassis link aggregation can be used to improve link use efficiency and prevent single-point failures.

The S7700 can use service ports as cluster ports, so that cluster members can be connected through optical fibers. This substantially expands the clustering distance.

The S7700 has a dedicated fault detection subcard that provides hardware-based OAM function conforming to IEEE 802.3ah, 802.1ag, and ITU-Y.1731. Hardware-based OAM implements 3.3 ms fault detection and can check session connectivity of all terminals in real time when a network fault occurs. The S7700 can also work with an NMS. The NMS provides a graphical fault diagnosis interface and traverses all network elements and links automatically to help users detect and locate faults quickly.

The S7700 implements seamless switchover between the master and slave MPUs and supports graceful restart to ensure nonstop forwarding. The in-service software upgrade (ISSU) function of the S7700 prevents interruption of key services during software upgrading.

Large-sized Campus Networks

The S7700 implements line-speed forwarding of OSPF, BGP, and MPLS packets. With its 2 Tbit/s switching capacity, firewall module, and IPSec module, the S7700 can work at the core layer of small and medium-sized campus networks. It provides a cost-effective, reliable, and easy-to-deploy network solution for small and medium-sized enterprises.

Small- and Medium-sized Campus Networks

The S7700 implements the line-speed forwarding of OSPF, BGP, and MPLS packets. With its 2 Tbit/s switching capacity, firewall module, and IPSec module, the S7700 can work at the core layer of small- and medium-sized campus networks. It provides a cost-effective, reliable, and easy-to-deploy network solution for small- and medium-sized enterprises.

Specifications

Item	S7703	S7706	S7712
Backplane capacity	3 Tbps	6 Tbps	12 Tbps
Switching capacity	768 G/1.92 T	2 T/5.12 T	2 T/5.12 T
Forwarding performance	576 Mpps/1440 Mpps	1152 Mpps/ 2880Mpps	1344 Mpps/3360 Mpps
Service Slot	3	6	12
VLAN	Three types of interfaces: access, trunk, and hybrid
	Default VLAN
	VLAN switching
	QinQ and selective QinQ
	MAC address-based VLAN assignment
MAC address	MAC address learning and aging
	Static, dynamic, and blackhole MAC address entries
	Packet filtering based on source MAC addresses
	Limit on the number of MAC addresses learned on ports and VLANs
STP	STP(IEEE 802.1d), RSTP(IEEE 802.1w), and MSTP(IEEE 802.1s)
	BPDU protection, root protection, and loop protection
	BPDU tunnel
IP routing	IPv4 routing protocols, such as RIP, OSPF, BGP, and IS-IS
	IPv6 dynamic routing protocols, such as RIPng, OSPFv3, ISISv6, and BGP4+
Multicast	IGMPv1/v2/v3 and IGMP v1/v2/v3 snooping
	PIM-DM, PIM-SM, and PIM-SSM
	MSDP and MBGP
	Fast leave
	Multicast traffic control
	Multicast querier
	Multicast packet suppression
	Multicast CAC
	Multicast ACL
MPLS	Basic MPLS functions
	MPLS OAM
	MPLS-TE
	MPLS VPN/VLL/VPLS
Reliability	LACP and E-Trunk between devices
	VRRP and BFD for VRRP
	BFD for BGP/IS-IS/OSPF/static route
	NSF and GR for BGP/IS-IS/OSPF/LDP
	TE FRR and IP FRR
	Ethernet OAM (IEEE 802.3ah and 802.1ag)
	ITU-Y.1731
	DLDP
	ISSU
	CSS
QoS	Traffic classification based on Layer 2 protocol packet header, Layer 3 protocol information, Layer 4 protocol information, and 802.1p priority
	ACL, CAR, re-mark, and scheduling
	Queue scheduling algorithms including PQ, WRR, DRR, PQ+WRR, and PQ+DRR
	Congestion avoidance mechanisms, such as WRED and tail drop
	Traffic shaping
Configuration and maintenance	Console, Telnet, and SSH terminals
	Network management protocols, such as SNMPv1/v2/v3
	File uploading and downloading using FTP and TFTP
	BootROM upgrade and remote upgrade
	Hot patches
	User operation logs
Security and management	802.1x authentication and portal authentication
	NAC
	RADIUS and HWTACACS authentication
	Different user levels for commands, preventing unauthorized users from using certain commands
	Defense against DoS attacks, TCP SYN Flood attacks, UDP Flood attacks, broadcast storms, and heavy traffic attacks
	1K CPU queues
	Ping and traceroute
	RMON
Value-added service	Firewall
	NAT
	Netstream
	IPSec
	Load balancing
	AC
Energy conservation	IEEE 802.3az: Energy Efficient Ethernet (EEE)
Dimensions (W x D x H)	442 mm x 476 mm x 175 mm	442 mm x 476 mm x 442 mm	442 mm x 476 mm x 664 mm
Chassis weight (empty)	< 15 kg	<30 kg	< 45 kg
Working voltage	DC: –38.4 V to –72 V AC: 90 V to 290 V
Maximum power (excluding PoE power)	800 W	1600 W	1600 W
Maximum PoE power	2200 W	8800 W	8800 W