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s4148F interswitch traffic within vlan with VLT
Hi,
I've set up 2 s4148F's with a VLTi and there are several machines connected with LACP across both switches. So far that's working fine.
Now I'd like to add a non-LAG connection on both switches so 2 devices can talk with each other in their own vlan, like this:
device A <--> (untagged port vlan 100) switch B <-VLTi-> switch C (untagged port vlan 100) <---> device D
in this setup, A and D can not reach each other. I suspect this is because the VLTi can only carry port channel traffic and I'm not setting up a LAG here so I'm not configuring these ports to be in a port-channel.
I have a 100g connection between switch B and C, which is in use for the VLTi. It's not allowed to change the port configuration to trunk, because the VLTi usage won't allow it.
How can I get device A and B to talk with each other?
DELL-Josh Cr
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February 13th, 2019 10:00
Hi,
Is the VLT link configured to pass VLAN 100? Everything that I have been able to find does talk about it with port channels so that may be the case.
Max2042
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February 13th, 2019 23:00
Hi Josh,
The interfaces that the VLT runs over can't be configured to allow vlan 100:
I am wondering what the best practice setup is for these kinds of situations to enable this normal type of traffic to flow through?
Thank you,
Max
DELL-Josh Cr
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February 14th, 2019 09:00
Can you private message me the service tag?
sphere011
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February 18th, 2019 16:00
White_Ninja
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December 11th, 2019 21:00
yes i would also be interested in the solution.
do you put vlan on the discovery interfaces?
remy-ch
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December 12th, 2019 07:00
On wich OS(9 / 10) do you try to configure VLT ?
On 10, you do not have to configure any VLAN.
The VLT "LAG" is using VLAN 4094 which is passing all VLANs by defaut. You must have same VLAN configured on both switchs.
To be sure all is configured correctly, you must check it :
show vlt mismatch
White_Ninja
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December 12th, 2019 22:00
hi and thanks i am using 10.4.3.6 so all vlans are "trunked" throught vlti connection ports?
remy-ch
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December 13th, 2019 03:00
Yes, if there is no configuration mismatch between both switches, VLAN trafic pass VLT interfaces.