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Huawei’s IP telecom network solutions apply the call management experiences of telecom
networks to IP networks and implement the dynamic QoS policy management of call-based real
time network bandwidth and service priority adjustment, which greatly improves the service
quality of the IP base network.
As shown in the above diagram, the basic network layer will be divided into two different logical
networks, i.e., the IP telecom network and Internet, by means of resource separation via the MPLS
technology. The IP telecom network will bear guaranteed telecom-level services, while the
Internet will bear the traditional and free Internet.
The RM (resource management server) concept is introduced into the bearer control layer, so as to
realize management over regional network topology and resources. When receiving a request from
the service platform for resources, the RM will decide, according to the regional network topology
and resource usage, whether to accept the call, thus implementing CAC (Connection Admission
Control). The QoS of the entire network can be guaranteed for cross-region services via
coordination between RMs.
The CMCC IP backbone network, which introduced in WCDMA stand, is an application to the
concept of IPTN.
Poster 3: The 5
th
Generation Router
As we know, the router technology have past five generation.
The first generation router based on fixed interface and centralized structure. All the work done by
a central CPU.
The second generation make the interface modularized, and it is more flexible then first
generation.
All these two kinds of routers have the same character, in one aspect that it is flexible for every
thing done by CPU, which means that new feature can be easily added by software upgrading. On
the other hand, for centralized structure, the performance can not be guaranteed.
So, the third generation routers based on the distributed structure have one CPU in each service
board. It improves the whole performance of the router.
And then the forth generation router coming with ASIC technology have one ASIC chip in each
service board and have more advanced performance than CPU because of its hardware. But just
about its hardware, it is not flexible enough. Especially with the rapid development of IP
technology, new service and features come one day after another. If the core router based on four
generation, you have to change hardware when you want to add some new features and services
such as MPLS, QOS and so on.
Juniper is the spokesman of the 4
th
generation router.
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