3.4.5 Packet Tracer - Configure Trunks

configure trunks addressing table six pieces and three switches trunks are required to pass belong information between switches a port on a switch is either an access port or a trunk port access ports carry traffic from a specific building assignment to the port a trunk port by default is a member of all vlans verify belongs display the current belongs on last one issue the command that will display all vlans configured okay access s1 click here enter go to privilege exec mode with enable command and show vlan brief enter there should be 10 villains in total okay one two three four five six seven eight nine ten notice that all 26 access ports on the switch are assigned to bilangua okay 26 ports assign it to default bilambilang1 on s2 and s3 displayed and verify all the vlans are configured and assigned to the correct switchboards according to the addressing table s2 enter enable show vlan brief enter okay uh one two three four five six seven eight nine and 10 10 belongs and 4911 to bilanthang for the night eleven to bill and ten foster not eighteen two million twenty 18 2 million 20 496 to belong 30 six to million okay 11 to ten eighteen to twenty six to thirty very good and s3 enter enabled show bill and brief okay six to thirty six to thirty eighteen to twenty 18 to 20 and 11 to 10 11 to 10. pink between holes on the same belong on different switches also pc1 and pc4 are on the same network they cannot pin one another this is because the poles connecting the switches are assigned to vlan 1 by default in order to provide connectivity between the pcs on the same network and vlan trunks must be configured okay ping from pc1 to pc4 command prompt and ping from pc1 to destination 132 17 10 24 172 17 10 24 okay pink is failing pink fails and pink fails because the gigabit interfaces that connects s2 to s1 and the connection between s3 to s1 these interfaces by default on s1 gigabit 01 and 02 are placed on vlan 1. at least gigabit 0 1 and 0 2 should be trunks or should be placed on vlan 10 okay configure trunks configure trunking on s1 and usb log 99 as the nativilla configure you're gonna be zero one and zero two minus one and use this example use the range and give it one and two okay as one enter configure terminal and interface range to select multiple interfaces gigabit zero one and zero two and switch port mode trunk enter okay switch for mode trunk and configure vlog 99 as the native belong for gigabit zero one and okay the trunk port takes about a short time to become active the spanning tree protocol after the ports become a tip you will periodically receive the following syslog messages these messages okay this uh matip belong mismatch a tbilong mismatch discovered on gigabit interface you configured belong 99 as the native belong minus one however s2 and s3 are using bilingual as the default native lang as indicated by the syslog message okay also you have an a tip below mismatch pings between pieces on the same belong are now successful explain okay go to pc1 and pick pc4 both on vlan 10 both on vlan 10. success and the answer is pings are successful because trunking has been enabled on s1 dynamic trunking protocol dtp has negotiated automatically the other side of the trunk links s2 and s3 have now automatically configured the ports attached to as one strong import okay dtp configured gigabit zero one and s2 a strong import and gigabit zero two on s3 as trunking board so that that's why being is success verified ranking is enabled on s2 and s3 on s2 and s3 issued the show interface trunk command to confirm that dtp has successfully negotiated trunking with s1 on s2 and s3 the output also displays information about the trunk interfaces on s2 and s3 okay go to s2 enter enable show interface trunk enter now you can see on s2 okay on s2 gigabit zero one is trunk okay gigabit zero one on s2 and mode auto okay auto means the that dtp is in use okay encapsulation ao2 that one queue status is strong king and nativilan is one which active belongs arrayaway to cross the trunk belongs yo on gigabit zero one one twenty thirty eighty eight ninety nine okay all these one ten twenty through the ada 88.99 review on s3 enter enable enable show interface trunk gigabit zero two on s3 is trunking mode auto dtp in use ao2 that one key encapsulation trunking nativity language villains yawed 110 20 30 88.99 and review again on s1 okay and to go privileged extreme show interface track okay on this one two trunks gigabit zero one and zero two gigabit zero one and gigabit zero two okay mode that means a static configuration of trunking when you configure it this line switchboard mode trunk on gigabit zero one and zero two encapsulation ao2 that one queue starts shranking and uses nadibilian 99 okay the nativilang is different but works anyway correct the native language match on s2 and s3 configure belong 99 as the native lang for the appropriate interfaces on s2 and s3 okay go to s2 configure your terminal to select interface you go with zero one first switchboard mode trunk a static trunk and switchboard trunk now t belong 99 enter exit okay port consistency restored okay very good and s3 configure terminal interfacing with zero two in this case switch port mode trunk okay is the static trunk and switchboard okay switchboard track not the billing 99 very good port consistency restored exit and verify show interface trunk on s2 and show interface trunk now is mode on because it's a static before was auto now is on when you configure it switchboard mode trunk and now uses native lang 99 when you configure it from tv link and start the strong key encapsulation very good s3 and show interface is strong on encapsulation trunking 99 very good verified configurations on s2 and s3 show interface the number of interface switch 4 commands to verify then the tp line is now on 99 okay on go to s2 show interface okay in this case and verify gigabit zero one gigabit zero one switchboard switchboard okay space switchboard and now you can see it's trunk encapsulation dot one q trunking not belong 99 use show belong comments to display the information show belong or show villain brief okay and you can see no gigabit zero one here jigabit zero two but no gigabit zero one okay uh show belong or show vlan brief command will show you the access ports but not the trunk imports okay and space go to s3 show interface gigabit zero two space switch port okay vlog 99 space show bill and brief now gigabit zero two here you gonna be zero one now you gotta beat zero two because gigabit zero two is strong y is for gigabit zero one unless you no longer assign it to be bilanguang okay because gigabit zero one on s2 is a trunk port and it's not displayed completion 100 thank you very much you

Channel: Christian Augusto Romero Goyzueta

Views: 5,846

Keywords: switching, routing, wireless, essentials, srwe, ipv4, switch 2960, switch, vlan, trunk, native vlan, trunking

Id: NOD19qz6b_o

Length: 15min 58sec (958 seconds)

Published: Sun Jul 26 2020