vlan 20

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Native VLAN • Untagged frames received on a trunk port are forwarded on to the native VLAN. • Frame received from the native VLAN should be untagged. • Switch will drop tagged frames received from the native VLAN. This can happen if non-Cisco devices are connected.
Configure trunk port • Make a port into a trunk port and tell it which VLAN is native. • SW1(config)#int fa0/1 • SW1(config-if)switchport mode trunk • SW1(config-if)switchport trunk native <strong>vlan</strong> 99 • By default native VLAN is 1.
Page 1 and 2: VLANs CCNA Exploration Semester 3 C
Page 3 and 4: Some requirements of LANs • Need
Page 5 and 6: Solution using routers BUT • Rout
Page 7 and 8: VLANs • All hosts in a VLAN have
Page 9 and 10: VLAN information • VLAN informati
Page 11 and 12: Types of VLAN • Data or user VLAN
Page 13 and 14: Voice VLAN • Use with IP phone.
Page 15 and 16: Native VLAN • For backward compat
Page 17 and 18: Static VLAN • The normal type. Po
Page 19 and 20: Traffic between VLANs • Layer 2 s
Page 21 and 22: Trunking • Traffic for all the VL
Page 23: Frame tagging IEEE 802.1Q Dest Add
Page 27 and 28: Assign port to VLAN • SW1(config)
Page 29 and 30: Show commands • show vlan brief (
Page 31 and 32: Delete a VLAN • SW1(config)#no vl
Page 33 and 34: Configure trunk • SW1(config)#int
Page 35: The End

vlan 20

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