You can think of this feature set as providing more information to the router to help it make better routing decisions, on a flow-by-flow basis. This book is the Switching Exam certification book from the only Cisco-authorized publisher. The only parts of the math that typically trip people up are the binary to decimal and decimal to binary conversions. This reference point is called the Root Bridge. Of course, these are simply guidelines. This book is not designed to be a general networking topics book, although it can be used for that purpose. It allows you to verify the ports! Finally, the interface is forced to be active using the no shutdown command.
The tables have much of the content removed so that you can use them as an exercise. As a result, the traffic load can be balanced across the available links. Table 5-1 Scoresheet for Quiz and Quizlets Quizlet Number Foundation Topics Sections Covering These Questions Questions 1 Switch Port Aggregation with EtherChannel 1—3 2 Spanning-Tree Protocol 4—7 3 Spanning-Tree Design 8—16 All questions Score 1—16 1 What is EtherChannel? After that, the root notifies all the rest of the switches. You will find that these questions are open-ended, rather than multiple choice as found on the exams. Scenario 4-2 141 Scenario 4-2 See the diagram shown in Figure 4-17 and answer the questions that follow.
Because of this, forcing any newly added network switches to have revision number zero is important. To begin configuration, the route processor module must be located and a terminal session opened. The hold time defaults to 15 and 180 seconds, respectively—three times the default hello interval. However, retaining and recalling most of the material covered in an instructor-led course is difficult after some time has passed. Catalyst 5000 Gigabit EtherChannel Module e. R2 could configure a priority of 116 or greater. Each address is viewed as a two-part address, formally called the prefix and the host parts of the address.
Which one of the answers lists the smallest summary route s that could be advertised by R1 without also including subnets not listed in this question? Refer to the full blueprint in Table I-1 in the Introduction for more details on the topics covered in each chapter and their context within the blueprint. The term packet is most often used to describe the Layer 3 header and data, without a Layer 2 header or trailer. In all cases, the formerly blocking port that would now cause a loop is prevented from migrating to a forwarding state. Any upper-layer protocol will not be looked at or even understood. You can also configure Syslog to send only specific classes of events to the server.
Within the standby group, one router is elected to be the active router. Traditionally, users with similar applications or needs have been placed in common workgroups, along with the servers they access most often. Table 5-5 shows the format of these messages. The half-duplex switch will erroneously believe collisions have occurred. To enable a router to resume the forwarding router role, enter the following command in interface configuration mode on the active router: Router config-if standby group-number preempt After the standby preempt command is issued, the interface changes to the appropriate state. The algorithm assumes a subnet field of 8 bits or less just to keep the steps uncluttered; for longer subnet fields, the algorithm can be easily extrapolated.
Therefore, the user interface and command set may be different from that of the host switch. In this case, the bridge treats the frame as if it were a broadcast and forwards it out all remaining ports. As well, redundant links can be used for load balancing in parallel if configured correctly. A tracking object must be configured first, as on R1. A passing grade on any of the currently-available written exams satisfies the requirement.
The network traffic then can be effectively moved and managed, and the campus network can be scaled to support future needs. The example begins with a list of the routes that should be filtered. UplinkFast also makes some modifications to the local switch to insure that it does not become the Root Bridge and that the switch is not used as a 186 Chapter 5: Redundant Switch Links transit switch to get to the Root Bridge. The router must be configured to pass the desired traffic across the tunnel. R2 show run begin ntp ntp authentication-key 1 md5 1514190900 7 ntp authenticate ntp trusted-key 1 ntp clock-period 17208144 ntp server 10. Before attaching the cable, one switch interface was configured with the switchport trunk encapsulation dot1q, switchport mode trunk, and switchport nonegotiate subcommands.
All devices on the network will produce data to be transported across the network. The active router assumes and maintains its active role through the transmission of hello messages. Although a router can be placed anywhere in a network, the router can become a bottleneck due to a latency of packet examination and processing. In addition, a router must examine the Layer 3 header of each packet before making a routing decision. Both speed and duplex d. Subnet number after completing the interesting octet 172 31 0 100 is the multiple of 4 closest to, but not exceeding, 103.