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SARS01
Contributor
Contributor

Unable to set VLAN trunk

Hi All,

Can someone please post me a "Step-byStep" config to setup Vlan trunking on my Cisco-3030 switch on my Dell 1955 Blades as I'm unable to get it configured?

Thanks and waiting in atisipation on replies

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rsa911
Virtuoso
Virtuoso

Which vmware product are you using ?

since you posted the same question in the VmWare Server forum...

have you already configured the Cisco part, or nothing at all is done ?

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SARS01
Contributor
Contributor

ESX 3x.

Currently it's configured for one IP range but we need to add multiple VLAN's for different IP ranges

When we configure a 802.1q trunk we loose network connectivity on the ports

Thanks,

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moberle
Contributor
Contributor

I believe your problem is that you need portfast set. This is the configuration from one of my 1955's running ESX 3.0.2

you dont need the native vlan unless you are using PXE to install ESX on your servers.

Hope this helps.

interface GigabitEthernet3/39

switchport

switchport trunk encapsulation dot1q

switchport trunk native vlan 722

switchport trunk allowed vlan 2-4094

switchport mode trunk

switchport nonegotiate

no ip address

no cdp enable

spanning-tree portfast trunk

spanning-tree bpduguard enable

spanning-tree guard root

end

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