--- title: LABS --- ###### tags: `__ccna_EN`,`TP_CCNA` #1 Etherchannel ![](https://i.imgur.com/uRGu4WG.png) ## 1 création des channel-group sur les ranges Sur DU ``` interface range g0/1 - 2 channel-group 1 mode active *Creating a port-channel interface Port-channel 1* exit ``` Sur ASHISH ``` interface range g0/1 - 2 channel-group 1 mode passive/active exit ``` ## Configure le trunk le port channel doit avoir le même numéro commun Sur DU ``` interface port-channel 1 switchport mode trunk ``` Sur ASHISH ``` interface port-channel 1 switchport mode trunk ``` # h1 # lab 11: Port Fast https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/24062-146.html ## ROOT GUARD vs BPDU Guard ![](https://i.imgur.com/ioXROv6.png) ![](https://i.imgur.com/nx7C5fh.png) https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/10588-74.html#diff Changement de Root Bridge ASHISH(config)#spanning-tree vlan 1 root primary DU(config)#spanning-tree vlan 1 priority 4096