Overview
The Quidway® S6500 Series high-end multi-service switch features high performance, high port density and high flexibility. It can be applied to the core layer of Enterprise networks, campus networks and education MAN, and to the convergence layer of carriers' IP MAN, and to the access layer of Data centers. With competitive prices and excellent performance, the S6500 holds the advantages over other products by enhancing network bandwidth, reducing customers’ investment and significantly improving the company's solution and product competitiveness.

The Quidway® S6500 Series switch focuses on constructing an end-to-end network featuring low cost, high performance and with the capability to support abundant services. It can provide L2 and L3 wire-speed forwarding performance of large capacity, high density and modularization. It can provide super high-speed links for MAN, campus networks and data centers based on the 10G platform. It can also provide rich service functions, such as NAT/NetSteam/PBR and PoE solution, a powerful QoS guarantee, complete security management mechanism and high level carrier-class reliability, designed to fully satisfy the requirements of high-end users for multiple services.

The Quidway® S6500 Series switch includes the following models: S6502(2 slots), S6503(4 slots), S6506(7 slots) and S6506R(8 slots).

The most important is that the new generation S6500 switches are much more cost effective than the old ones: lower price, higher performance and more features, including:

Advanced System Structure
The Quidway® S6500 Series introduces the distributed system architecture and powerful ASIC chips for high-speed routing, as well the Crossbar technologies for packet switching. This creative combination greatly improves the forwarding performance and expansion capabilities of the routing switch. Embedded in the Main Control Units (MCU), the Crossbar switching fabric provides a switching capacity up to 768Gbps and works in the active/standby or load-sharing mode set by simple software configuration2.

High Capacity, High Density, Wire-Speed Forwarding
High Capacity - The Quidway® S6500 Series can provide 1.68Tbps backplane bandwidth and up to 768Gbps switching capacity and 432Mpps forwarding capabilities with Salience™ III Plus engine.

High Density - The Quidway® S6500 Series can support ultimate 292 GE or 288 FE or 24 10-Gigabit wire-speeds Ethernet interfaces totally.

Wire-Speed Forwarding - All the high density Gigabit (48- port) and 10-Gigabit (4-port) interface modules with XGBUS uplink can reach to L2/L3 wire-speed distributed forwarding in full loaded of S6503 or S6506R with new Salience™ III Plus engine3.

Simply put, the Quidway® S6500 Series provides flexible interface choices from 10/100/1000 to 10 Gigabit Ethernet and combined interface boards to satisfy the customer's requirements for high density, high throughput and wire-speed forwarding.

10 Gigabit Wire-speed Interfaces Support
The new generation, 10-Gigabit Ethernet, provided by the S6500 Series has overcome the limitations of the early 10-Gigabit Ethernet.

• It provides up to four wire-speed 10-Gigabit ports per line card in fully loaded chassis with the new super engine - Salience™ III Plus.
• It provides ultimate to 12 wire-speed 10-Gigabit ports in the S6503 and 24 wire-speed 10-Gigabit ports in the S6506R.
• It supports QoS-ensured forwarding at wire speed as well as abundant ACLs, policy routing, and security features.

Carrier-class Reliability Design
The Quidway® S6500 Series adopts an industry-leading distributed processing structure.

• The Quidway® S6506R supports dual Main Control Units and all boards of the S6500 Series are hot-swappable.
• The power system uses N+1 redundancy hot-backup.
• The Quidway® S6500 Series switch supports STP/RSTP/MSTP and VRRP, which can meet rigorous carrier-class reliability requirements.
• The Quidway® S6500 Series switch supports cost-effective ring technology -- RRPP4, which can offer sub-second recovery from link failure in spite of numbers of nodes in the ring. Figure 2 Quidway®S6500 Series Super Engines.
• The Quidway® S6500 Series switch deploys Salience™ III series engines with maximum switching capacity 768Gbps, with throughput as much as 432Mpps, while the backplane capacity reach 1.68Tbps.
  

Complete Security Mechanism

• The Quidway® S6500 series deploys the sophisticated 802.1x mode for access user authentication. 802.1x dynamic user binding enables a switch to dynamically bind the IP address, the MAC address, the accessing port, and the VLAN to which the accessing port belongs after an 802.1x user passes the authentication. And the switch then only permits the packets that match all these four items.
• Guest VLAN allows unauthenticated users to access more resources, without installing 802.1x client, or the user upgrades 802.1x client without authentication.
• Dynamic VLAN with RADIUS server implements the purpose of controlling the network resources that the users can access.
• HWTACACS or RADIUS authentication or local server enables centralized access control of switches and limits unauthorized users to modify the configurations.
• DHCP Security can be used to prevent illegal user from accessing network by binding IP and MAC address on the switch itself.
• The Quidway® S6500 series can also prevent unauthorized access to the network by binding any combination of MAC, IP, VLAN and PORT.
• The Quidway® S6500 series also support Secure Shell (SSH) protocol version 2, secure SNMPv3 NM protocol and MD5 encrypted authentication of OSPFv2, RIPv2 and BGPv4 packets.
• Salience™ III Super Engine of the Quidway® S6500 series offers superior per-port QoS features to help ensure that network traffic is classified, prioritized, and scheduled optimally to efficiently handle bandwidth-hungry multimedia, time-sensitive (voice), and mission-critical applications. Salience™ III Super Engine can classify, police, and mark incoming packets, allowing the administrator to differentiate between traffic flows and enforce policies. Sharing, shaping, and strict-priority configurations determine scheduling of egress traffic. Bandwidth control granularity is up to 64 Kbps.
• Adopting the advanced system ASIC chip design, the longest routing prefix mode and the packet-by-packet forwarding mode, the Quidway® S6500 series can effectively combat network viruses like Worm. Blaster, Red Code, etc.
  

• S6500 series switch supports IEEE 802.3af standard PoE as PSE (Power-sourcing Equipment) on 10/100BASE-TX or 10/100/1000 BASE-T ports.
• All new PoE line cards of S6500 series switch can support up to 48 simultaneous full-powered PoE port per slot at 15.4w. It also supports intelligent power management and delivers necessary power to PD (Powered Device). It could provide up to 2400W power supply with N+1 redundancy.
• In the network construction, it could provide power directly to any IEEE 802.3af-compliant end device to limit the number of point failure, such as WLAN Access Point device or IP Phone which enables Voice VLAN applications.
• With PoE and Voice VLAN technology, these innovative switches can provide the perfect solution for a converged voice and data network.

4. Only the optical interfaces on LS8M1P12PE, LS8M1P12TE, Salience™ III Edge and Salience™ III can support RRPP currently, and the hardware CPLD version must be 004 or later