Troubleshooting IGRP Flowcharts to Solve Common IGRP Problems This section discusses the most common scenarios that can prevent IGRP routes from getting installed in the routing table. This is the most useful section in this chapter because the most common problem in IGRP is that routes are not in the routing table. If a specific destination is not in the … [Read more...]
Understanding Open Shortest Path First (OSPF)
Understanding Open Shortest Path First (OSPF) OSPF Packet Details OSPF has five types of packets used for various reasons. Table 8-1 documents the different OSPF packet types and describes their functionality. All the OSPF packet types share a common 20-byte OSPF protocol header. Figure 8-1 shows the common OSPF protocol header format. The list that follows … [Read more...]
CHASSISD_IPC_CONNECTION_DROPPED
CHASSISD_IPC_CONNECTION_DROPPED The chassis process (chassisd) dropped its interprocess communication (IPC) connection to the indicated component (field-replaceable unit, or FRU). The message is logged whenever the interprocess connection to a component is terminated or reset. This message reports an event, not an error. Examples of possible entries in the system message … [Read more...]
CCNA 2 RSE Chapter 6 VLANs SIC Practice Skills Assessment
CCNA 2 RSE Chapter 6 VLANs SIC Practice Skills Assessment – Packet Tracer Answers CCNA Routing and Switching Routing and Switching Essentials RSE Chapter 6 SIC Practice Skills Assessment – Packet Tracer A few things to keep in mind while completing this activity Do not use the browser Back button or close or reload any exam windows during the exam Do not close … [Read more...]
Cisco Network Mgmt Protocol FAQ: Management Metrics
Cisco Network Mgmt Protocol FAQ: Management Metrics Q1. In what ways can network management impact a service provider’s business? Answer: It affects the cost of ownership of a network, revenues that can be generated from communication services, network availability, and the quality of the communication services that are offered. Figure: Network Management Business … [Read more...]
Understanding Interior Gateway Routing Protocol (IGRP)
Understanding Interior Gateway Routing Protocol (IGRP) Metrics IGRP uses an equation to calculate its metrics. Metrics then are used by the router to favor a particular route. In IGRP, the lower the value of the metric is, the more favorable the route is. The IGRP metric equation takes into consideration the variables of bandwidth, delay, load, and reliability of the link to … [Read more...]
Cisco Network Mgmt Protocol FAQ: Service Level Management
Cisco Network Mgmt Protocol FAQ: Service Level Management Q1. Both the provider and the customer of a service should be concerned with service level monitoring. Why is this so? Answer: The customer might not know for sure whether he is indeed getting the service level that was agreed to. Q2. Assume that you are a service customer and are about to enter an SLA with a … [Read more...]
CCIE Routing and Switching FAQ: OSPF
CCIE Routing and Switching FAQ: OSPF Q1. R1 has received an OSPF LSU from R2. Which of the following methods can be used by R1 to acknowledge receipt of the LSU from R2? A. TCP on R1 acknowledges using the TCP Acknowledgment field. B. R1 sends back an identical copy of the LSU. C. R1 sends back an LSAck to R2. D. R1 sends back a DD packet with LSA headers whose … [Read more...]
Cisco Network Mgmt Protocol FAQ: Management Integration
Cisco Network Mgmt Protocol FAQ: Management Integration Q1. Imagine that you are a service provider. An equipment vendor offers you an integrated management system. Which aspects of management integration will such a system be unlikely to address, even if the equipment vendor’s claims are, from his perspective, entirely correct? Answer: It might not provide multivendor … [Read more...]
Cisco Network Mgmt Protocol FAQ: Management Organization
Cisco Network Mgmt Protocol FAQ: Management Organization Q1. Assume that you have to manage an enterprise network with several remote branch locations. You are told that you need to collect performance data from each remote location to assess the total traffic that goes to headquarters, that is directed to other enterprise locations, and that goes to destinations outside the … [Read more...]