#Mankiw Instructor Chapter Manual For Essentials

Mankiw Instructor Chapter Manual For Essentials

Interdependence and the Gains from Trade. Thinking Like an Economist. Ten Principles of Economics. Gregory Mankiw, ISBN: 9781285165950. Solution manual for Essentials of Economics, 7th Edition, N. Solution Manual for Essentials of Economics 7th Edition Mankiw.

There are redundant uplinks between the access layer and distribution layer. The distribution layer switches are Catalyst 3560 switches, and the access layer switches are Catalyst 2960 switches. Four switches have just been installed. 4.We have designed this InstructorвЂ™s Manual to supplement and enhance your teaching experience through classroom activities and a cohesive chapter summary1 Chapter 2 Lab 2-2, Configuring EtherChannel Instructor Version Topology Objective Background Configure EtherChannel.

You can use other switches (such as a 2950 or 3550) and Cisco IOS Software versions if they have comparable capabilities and features. Note: This lab uses Cisco WS-C TT-L switches with the Cisco IOS image c2960-lanbasek9-mz se.bin, and Catalyst PS with the Cisco IOS image c3560-advipservicesk9-mz se.bin. In this lab, you configure Port Aggregation Protocol (PAgP), a Cisco EtherChannel protocol, and Link Aggregation Control Protocol (LACP), an IEEE 802.3ad open standard version of EtherChannel. EtherChannel allows up to eight redundant links to be bundled together into one logical link. However, using only one link utilizes only half of the available bandwidth.

Chapter 15 Mankiw SOLUTIONS TO TEXT PROBLEMS: Quick Quizzes 1. Of 9Mankiw ChapWords 15 Pages. This document is Cisco Public Information. Required Resources 2 switches (Cisco 2960 with the Cisco IOS Release 12.2(46)SE C2960-LANBASEK9-M image or comparable) 2 switches (Cisco 3560 with the Cisco IOS Release 12.2(46)SE C3560- ADVIPSERVICESK9-M image or comparable) All contents are Copyright Cisco Systems, Inc.

Step 2: Configure basic switch parameters. Refer to Lab 1-1, Clearing a Switch, and Lab 1-2, Clearing a Switch Connected to a Larger Network. Delete vlan.dat, erase the startup configuration, and reload all your switches. Gregory Mankiw, ISBN-10: 1319106056.2 Ethernet and console cables Step 1: Prepare the switches for the lab. Test Bank for Macroeconomics, 10th Edition, N.

The default mode on a 3560 or 2960 switch is dynamic auto. Note: If the ports are configured with dynamic auto mode and you do not set the mode of the ports to trunk, the links do not form trunks and remain access ports. On the 2960s, only dot1q is supported, therefore the switchport trunk encapsulation command is unavailable, but the mode still needs to be changed to trunk. On the 3560 switches, you must first set the trunk encapsulation to 802.1Q. Configure ports Fa0/7 through Fa0/12 as trunks.

The mode desirable option indicates that you want the switch to actively negotiate to form a PAgP link. On both switches, add ports Fa0/11 and Fa0/12 to port channel 1 with the channel-group 1 mode desirable command. ALS1# show interfaces trunk Port Mode Encapsulation Status Native vlan Fa0/7 on 802.1q trunking 1 Fa0/8 on 802.1q trunking 1 Fa0/9 on 802.1q trunking 1 Fa0/10 on 802.1q trunking 1 Fa0/11 on 802.1q trunking 1 Fa0/12 on 802.1q trunking 1 b.

ALS1# show interfaces trunk Port Mode Encapsulation Status Native vlan Fa0/7 on 802.1q trunking 1 Fa0/8 on 802.1q trunking 1 Fa0/9 on 802.1q trunking 1 Fa0/10 on 802.1q trunking 1 Po1 on 802.1q trunking 1 All contents are Copyright Cisco Systems, Inc. The show interfaces trunk and show spanning-tree commands also show the port channel as one logical link. This involves using the shut command on those interfaces, followed by a no shut command a few seconds later. If the EtherChannel does not come up, you might want to try flapping the physical interfaces on both ends of the EtherChannel.

You must use a different port channel number on ALS1 than 1, because you already used that in the previous step. Using the previous commands, configure the link between DLS1 and ALS1 on ports Fa0/7 and Fa0/8 as an LACP EtherChannel. In 2000, the IEEE passed 802.3ad, which is an open standard version of EtherChannel. Of 94 ALS1# show spanning-tree VLAN0001 Spanning tree enabled protocol ieee Root ID Priority Address a53.a380 Cost 19 Port 9 (FastEthernet0/9) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority (priority sys-id-ext 1) Address 001d c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Role Sts Cost Prio.Nbr Type Fa0/7 Altn BLK P2p Fa0/8 Altn BLK P2p Fa0/9 Root FWD P2p Fa0/10 Altn BLK P2p Po1 Desg FWD P2p Step 4: Configure an 802.3ad LACP EtherChannel.

Apply a similar configuration on DLS1. ALS1(config)# interface range fastethernet 0/7-8 ALS1(config-if-range)# channel-group 2 mode active Creating a port-channel interface Port-channel 2 ALS1(config-if-range)# interface port-channel 2 ALS1(config-if)# b. Active mode indicates that the switch actively tries to negotiate that link as LACP, as opposed to PAgP.

Because DLS1 and DLS2 are both multilayer switches, they can support routed ports. You can also configure EtherChannels as Layer 3 (routed) connections on switches that support routed ports. In the previous steps, you configured EtherChannels as Layer 2 trunk connections between switches. Of 95 Group Port-channel Protocol Ports Po1(SU) PAgP Fa0/11(P) Fa0/12(P) 2 Po2(SU) LACP Fa0/7(P) Fa0/8(P) Step 5: Configure a Layer 3 EtherChannel. This document is Cisco Public Information. ALS1# show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 2 Number of aggregators: 2 All contents are Copyright Cisco Systems, Inc.

Configure both with a /24 subnet mask. Add the IP address for DLS1 and for DLS2. On the logical interface, issue the command to make it a Layer 3 port.

Sending 5, 100-byte ICMP Echos to , timeout is 2 seconds: Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms c. DLS1# ping Type escape sequence to abort. Verify that you have Layer 3 connectivity by attempting to ping the other side of the link.

The switches can use different methods to load-balance traffic going through a port channel. Of 96 Step 6: Configure load balancing. This document is Cisco Public Information. DLS1# show etherchannel summary Flags: D - down P - in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 2 Number of aggregators: 2 Group Port-channel Protocol Ports Po2(SU) LACP Fa0/7(P) Fa0/8(P) 3 Po3(RU) PAgP Fa0/11(P) Fa0/12(P) All contents are Copyright Cisco Systems, Inc. The RU in parentheses next to the name means routed and up, as opposed to switched and up (SU).

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