consider the Open System Interconnection (OSI) reference model, which is a layered model for implementing computer communications. Using layers, the OSI model simplifies the tasks required for two computers to communicate. Hierarchical models for internetwork design also use layers to...
The Cisco Three Layer Hierarchical Model vs the OSI Model The ISO, International Organization for Standardization is the Emily Post of the network protocol world. Just like Ms. Post, who wrote the book setting the standards or protocols for human social interaction, the ISO developed the OSI mo...
Support for H-VPLS is available only for the hierarchical route reflector (RR) model. BGP Signaling Inter-AS Option A is supported in this release. BGP Signaling Inter-AS Option B and Inter-AS Option C are not supported in this release. Maximum number of supported BGP Signaling n...
Hierarchical Controller (HCO) Multi-vendor IP Controller (CNC) Cisco Optical Networking Controller (CONC) Element Management (EPNM) Cisco Optical Network Planning tool (CONP) Figure 7 shows how Cisco is bringing it all together. Figure 7. HCO’s function is an abstract hierarchical controller to...
hierarchical architecture, IS-IS (Intermediate System-to- Intermediate System), 105–106 hierarchical route reflector design, BGP (Border Gateway Protocol), 167–168 hierarchies enterprise campus design, 3 access layer, 4–5 core layer, 6–7 distribution layer, 5–6 three-tier layer model, 9–...
Both the network and host portions of the IP address can be of a variable or fixed length, depending on the hierarchical network address scheme used. Discussion of this hierarchical, or subnetting, scheme is beyond the scope of this book, but suffice to say you are concerned with the fact ...
D. Hierarchical OSPF networks do not require multiple areas. E. Multiple OSPF areas must connect to area 0. F. Single area OSPF networks must be configured in area 1. Answer: BCE Section: Chapter 6: IP Routing Explanation/Reference: A:每个区域需要换回口,错误 B:区域 ID 的围是 0--655...
Cisco's optical internetworking strategy is based on five phases over the course of a year that deliver the technologies needed to leverage current investments in synchronous optical network/synchronous digital hierarchy (SONET/SDH). The strategy will extend the optical internetworking model from the lo...
2、CCNA 要求对 Cisco 私有的操作系统 IOS(Internetworking Operating System)有较深入的认识和理解。一个 Router Simulator(模 拟器)是非常必要的 .好的 Router Simulator 很多了,比如 Sybex 授权 电子工业出版社出版的《CCNA 虚拟实验室》就非常不错,可以虚拟一 个仿真的环境(两台 2600 路油器和一台 1900 ...