Multiple network modes
• Pure IPv6 network
• IPv4 island network
• IPv6 island network
• IPv4 and IPv6 interconnection
Basic IPv6 functions
• Neighbor discovery/router discovery/IPv6 stateless address automatic configuration
• Redirection/IPv6 path MTU discovery protocol/IPv6 domain name resolution
IPv6 traversing IPv4 tunnel technology
• IPv6 manually configured channel
• IPv4-compatible automatic tunnel
• 6to4 automatic tunnel
• ISATAP tunnel
• IPv6 over IPv4 GRE tunnel
• Tunnel agent
• IPv6 over IPv4 mechanism
• 6PE
• Teredo tunnel
IPv6 and IPv4 interoperation technology
• SIIT/NAT-PT/BIS/BIA/TRT
• Socket IPv4/IPv6 gateway
IPv6 traversing IPv4 tunnel technology
• IPv6 manually configured channel
• IPv4-compatible automatic tunnel
IPv6 routing technology
• IPv6 unicast routing protocol and IPv6 multicast routing protocol
• (MLDv1 Snooping/MLDv1/PIM-SM/PIM-DM)
1.10 Q: H3C MSR series integrates multiple services, what aspects do they mainly include?

A: MSR series comes with feature-rich routing and forwarding to meet the communications of data services. It also boosts multi-services integration in a higher level especially in terms of security, switching, voice and open services. Users can implement MSR series routes as security gateway, voice gateway; routing & switch integrated device and open service platform freely, facilitating applications and investment protection.

1.11 Q: Please introduce the integrated security services of H3C MSR series briefly.

A: MSR series supports a rich of VPN services and firewall functions. MSR series supports three kinds of IP VPN technologies:? L2TP, GRE and IPSec, as well as MPLS VPN and VRF functions, guaranteeing the implementations of mainstream VPN technologies in the industry. For IPsec encryption, MSR series provides supports for several hardware acceleration functions in addition to software encryption algorithm. With these functions and solutions, MSR series ensures successful implementations of security applications. There are the following hardware acceleration solutions:

Hardware encryption engine is embedded in CPU.
• The main CPU of MSR series has embedded in hardware encryption engine.
High performance hardware encryption module HNDE.
• MSR 30/50 supports MIM HNDE encryption module. MSR 50 also supports FIC HNDE encryption module.
High performance hardware encryption ESM pinch card.
• The whole series of MSR routers supports optional hardware encryption ESM pinch card, improving encryption capability greatly.

A: Routing and switch integration now is a trend in the industry. Integrating Ethernet switching function on routers has many advantages and features as follows:

1. The principal part is still the router. Additionally, existing features of the router like rich route, security and QoS are kept, satisfying diverse application requirements of users well. A single switch cannot do that.
2. By combining Layer 2 switch organically, you can enable router functions while meeting the requirements of using router products to build a LAN to enable Layer 2 data switching.
3. The router and the switch are integrated in a physical device. This can reduce fault points, improve reliability and save physical space occupied by two devices.
4. The router and the switch are integrated into an organic system for consistent management, including SNMP and WEB network management. This can bring higher manageability and maintenance convenience.

As the next generation of multi-service integration router, MSR series is of great advantages with regard to switch services integration as follows:

1. MSR series integrates switch modules physically. It also combines powerful switch service platforms and switch features from H3C, guaranteeing the consistency and synchronous development between the service features offered by the switch modules of MSR series and switch series from H3C.
2. With the support of a rich of switch modules, MSR series now supports three kinds of interface cards: SIC, MIM and FIC. It also supports many interface specifications, such as 4 interfaces, 9 interfaces, 16 interfaces and 24 interfaces. Switch modules with higher interfaces will come into the market soon.
3. In addition, the switch modules of MSR series support POE, further expanding the application implementation capability and flexibility.

A: The ability of MSR series to deploy voice services is also improved greatly.

1. MSR series supports the voice modules of original R/AR series routers, including 1/2/4-port FXS, FXO and E&M modules as well as high density 1/2-port VE1/VT1 voice modules. Where VE1/VT1 is a centralized solution. That is, DSP and TDM are fully integrated into this voice module.? MSR series keeps the features and compatibility of original modules, facilitating use and investment protection for users.
2. To improve interface density and flexibility of voice implementation, MSR series provides a new high density voice separated solution. That is, MSR series separates DSP and TDM switching functions of VE1/VT1 high density voice modules from other voice interface modules, and deploys them on the main board as shared resources. This solution also supports 1-way and 2-way high density access on a voice module. As a result, voice implementation flexibility is improved and investment cost is saved.
3. The number of module slots of MSR series itself is higher than R/AR series. Coupled with high-density voice modules and voice separation solution, this increase the voice interface density of MSR series. In case of full configuration, MSR series can provide up to 480-way voice access.
4. Voice features and supported protocols are also enhanced. Now MSR series supports H.323 and SIP protocols. Furthermore, it provides feature-rich functions.

A: MSR series supports Open Application Architecture (OAA). It publishes software and hardware interfaces and standards specifications and provides an open platform. So the third party vendors can develop abundant services for advantage complementation, deep integration, cooperation and two-win. In short, it integrates common desktop or server systems as router modules into MSR series routers. The router provides power supply, communication and management interfaces as well as standards-based open application interfaces, making it more simple and convenient for users or third-party to integrate services.

A: MSR series supports CF card and USB. From the perspective of basic function, they all provide external storage function on the router, for example, store system files, configuration and system log files and so on. Unlike the system files and configuration of R/AR series routers which are stored in Flash, the system files of MSR series routers are stored in CF card. So MSR series routers come with CF card by default for this function. MSR series has USB interface to support the use of U-type disk. You can use U-type disk to read/write files from/to the router.? With the prevalence of CF card and USB interface as well as higher storage capacity and lower hardware cost, the use of U-type disk can be extended easily later. For example, you can use the information stored in U-type disk as key start and control system, and store system log files and security log information in U-type disk or CF card.

A: MSR series has inherited the reliability of R/AR series that is guaranteed by hardware and software two aspects.?
MSR series uses VRRP redundant backup to enable hot backup among two or more MSR devices, and guarantee the interoperation of devices from different vendors as the VRRP protocol is a public standard.
By leveraging a flexible and perfect backup center mechanism, MSR series provides outstanding backup function for communication lines. By specifying a primary interface and corresponding backup interfaces, and adjusting the parameters of backup interfaces like backup preference and switch time, the backup interfaces can take on its work when the primary interface failed without affecting carried services, and thus improving the reliability of communication lines.
MSR series uses dynamic standby of routing from H3C. As a new backup mode, it uses traditional DCC (only supporting polling DCC) function to dynamically maintain dial-in lines, i.e. routing-based dial-in backup. With the aggregation time and relevant features of dynamic routing protocols, this function integrates backup and routing functions well. At the same time, it breaks through the limitation that tradition DCC triggers dial-in by detecting Interesting packet flows, and provides reliable connections and standardized dial-in on demand services.
MSR series uses auto-detect technology, which leverages ICMP request/response packets to detect the reachability of destination. The results are fed back to linked backup function modules initiating primary/secondary switching to provide backup function based on the reachability of the network layer applications. This solves the shortage where you must detect the physical UP and Down changes of interfaces or the network layer protocols to initiate primary/secondary switching.
MSR series uses quick rerouting technology. By solving such issues as long rerouting effect time and high packet loss ratio, it has improved the existing rerouting technologies at a large extent. In addition, quick rerouting function is also supported in MPLS services for high reliability.

MSR 50 series supports hot-swappable boards, fans and power supplies, improving the reliability of physical devices. MSR 30 series supports dual-power with an external power.

1.17 Q: What kind of memory does the H3C MSR series use? And what is its default memory configuration?

A: The MSR 20 series routers use SDRAM with default memory 256M and maximum memory 384M, MSR 30 series routers use DDR with default memory 256M and maximum memory 1G. MSR 50 series routers use DDR with default memory 512M and maximum memory 1G.