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Vlan trunking from a Cisco 3550 to a Dell 5224

Answered Question
Nov 14th, 2002
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I am trying to setup a Dell 5224 to trunk to a Cisco 3550 using 802.1Q. The 3550 is our core device used to connect 5500s using ISL to route between the VLans. I trying to add the Dell switch and must use 802.1Q encap. Native Vlan is vlan 1. With 802.1Q are the vlans automatically pulled down to the switch as it is done wih the ISL trunks? Should the vlans on the dell switch be tagged or untagged ?



Below is how the Cisco 3550 is setup.


! Interface to Dell 5224

interface GigabitEthernet0/9

switchport trunk encapsulation dot1q

switchport mode trunk

no ip address


! Interface to other Catalyst

interface GigabitEthernet0/6

switchport trunk encapsulation isl

switchport mode trunk

no ip address

Correct Answer by donewald about 14 years 9 months ago

Yes, by default all VLANs are sent down your trunk. To verify this you can use the "show interface trunk" command. Ensure your port (Gig 0/9) is trunking and is on.

As for your Dell server all vlans, except native vlan, must be tagged (1q). You can also enable tagging for native vlan on the 3550 if you chose to do this.


Hope this helps,

Don

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Correct Answer
donewald Thu, 11/14/2002 - 07:50
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Yes, by default all VLANs are sent down your trunk. To verify this you can use the "show interface trunk" command. Ensure your port (Gig 0/9) is trunking and is on.

As for your Dell server all vlans, except native vlan, must be tagged (1q). You can also enable tagging for native vlan on the 3550 if you chose to do this.


Hope this helps,

Don

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