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Volume 1 – Lab 2

IPexpert CCIE R&S Detailed Solutions Guide

 OK, now that we have made the necessary changes, let‟s bring all the links back up on all the switches. The best thing to do here is copy/paste from notepad because you will want to do this fairly quickly to avoid any issues. Cat1 – Cat4 int range Fa0/19 - 24 no shutdown

 Now, let‟s make sure our trunks came up as expected, and that our native VLAN is indeed being tagged as configured. The output of this command has been reduced to only show the relevant information.

Cat3550-1(config)#do sh int trunk Port Po14 Po13 Po12

Mode desirable desirable desirable

Encapsulation 802.1q 802.1q 802.1q

Status trunking trunking trunking

Native vlan 1 1 1

Status trunking trunking trunking

Native vlan 1 1 1

Status trunking trunking trunking

Native vlan 1 1 1

Status trunking trunking trunking

Native vlan 1 1 1

Cat3550-1(config)#do sho vlan dot1q tag nat dot1q native vlan tagging is enabled Cat3560-2(config-if-range)#do sh int trunk Port Po12 Po23 Po24

Mode desirable desirable desirable

Encapsulation 802.1q 802.1q 802.1q

Cat3550-2(config)#do sho vlan dot1q tag nat dot1q native vlan tagging is enabled Cat3560-3(config-if-range)#do sh int trunk Port Po13 Po23 Po34

Mode desirable desirable desirable

Encapsulation 802.1q 802.1q 802.1q

Cat3550-3(config)#do sho vlan dot1q tag nat dot1q native vlan tagging is enabled Cat3560-4(config-if-range)#do sh int trunk Port Po14 Po24 Po34

Mode desirable desirable desirable

Encapsulation 802.1q 802.1q 802.1q

Cat3550-4(config)#do sho vlan dot1q tag nat dot1q native vlan tagging is enabled

 As we can see, all the trunks are running 802.1q encapsulation and have the native VLAN being tagged as expected!

V1500

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R&S_Volume_1_DSG_v11.0_Lab2  

IPexpert’s Detailed Solution Guide for the Cisco® CCIE™ v4 Routing & Switching Lab Exam Volume 1 At the beginning of each section, you w...

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