VLAN Troubles

Peter Ehiwe peterehiwe at gmail.com
Tue Mar 6 10:36:35 CST 2012


Verify what protocol the dell switch  uses to tag the traffic(from the
datasheet) , i have seen some switches that wont trunk .1q with cisco

On Tue, Mar 6, 2012 at 5:07 PM, Alan Bryant <alan at alanbryant.com> wrote:

> I hope everyone is having a better workday so far than I am.
>
> I am trying to clean up the network for the Hospital I work for, and
> part of that is creating two VLAN's for two separate subnets on our
> network. Before, it was not separated by VLANs. We are also replacing
> our aged Juniper firewall with an ASA.
>
> I'm very new to VLAN's, so I am hoping this is something simple that
> you guys can help me out with.
>
> We have two switches that do not seem to be passing VLAN traffic. The
> two switches are a Dell Powerconnect 5324 & a Cisco 3560G. The Cisco
> switch appears to be functioning fine, but the Dell switch is only
> passing traffic to the Cisco that is on the default untagged VLAN1.
> Our second VLAN is not getting passed to the Cisco at all, I am not
> seeing any packets tagged with the particular vlan in Wireshark.
>
> I have Port 1 on the Dell switch connected to port 29 on the Cisco
> switch, and port 1 on the Cisco switch connected to the ASA.
>
> I have the following config on the relevant ports on the Cisco switch:
>
> interface GigabitEthernet0/1
>  description ASA 5505
>  switchport trunk encapsulation dot1q
>  switchport mode trunk
>
> interface GigabitEthernet0/29
>  description Radiology Switch
>  switchport trunk encapsulation dot1q
>  switchport mode trunk
>
> Here is the config for the Dell switch:
>
> interface ethernet g1
> speed 1000
> duplex full
> exit
> interface ethernet g2
> speed 1000
> duplex full
> exit
> interface ethernet g3
> speed 1000
> duplex full
> exit
> interface ethernet g4
> speed 1000
> duplex full
> exit
> interface ethernet g5
> speed 1000
> duplex full
> exit
> interface ethernet g7
> speed 1000
> duplex full
> exit
> interface ethernet g9
> speed 1000
> duplex full
> exit
> interface ethernet g10
> speed 1000
> duplex full
> exit
> interface ethernet g12
> speed 1000
> duplex full
> exit
> interface ethernet g14
> speed 1000
> duplex full
> exit
> interface ethernet g15
> speed 1000
> duplex full
> exit
> port jumbo-frame
> interface ethernet g1
> switchport mode trunk
> exit
> interface ethernet g24
> switchport mode trunk
> exit
> vlan database
> vlan 12,22
> exit
> interface range ethernet g(2,4,7,12,14-15)
> switchport access vlan 12
> exit
> interface vlan 12
> name Radiology
> exit
> interface vlan 22
> name Guest
> exit
> interface vlan 1
> exit
>
> Anyone have any ideas or pointers? Is there more information that I
> need to provide? Vlan1 works just fine, of course. It is Vlan 12 that
> is not working. Everything on the Dell switch is communicating with
> each other just fine on the same subnet.
>
>


-- 
Warm Regards

Peter(CCIE 23782).


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