Ethernet Switches & Routers

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New Contributor
Posts: 2
Registered: ‎09-16-2014
Accepted Solution

7750 VLAN Tagging

Hi all,

 

I need to configure port 1/1/25 on a 7750 for one untagged and multiple tagged VLANs.Currently the port is untagged for VLAN 116 as seen below:

 

vlan 116 name "Office" by port
  untagged ethe 1/1/23 to 1/1/32
  router-interface ve 116

interface ethernet 1/1/25
 port-name "MDF-01"
 no spanning-tree
 no flow-control both
 sflow forwarding

interface ve 116
 ip address 10.16.1.1 255.255.248.0

From what I have read I need to set the port to dual-mode, however I am not able to. Both "dual-mode" or "dual-mode 116" commands come back with "error - cannot set untagged port 1/1/25 to dual mode". Any idea why this might be?

 

Thanks!

 

 

 

 

Contributor
Posts: 37
Registered: ‎02-27-2015

Re: 7750 VLAN Tagging

Hi altbg,

 

In your case, this is your config how should be:

 

!

vlan 116 name Office by port
tagged ethe 1/1/25
untagged ethe 1/1/23 to 1/1/24 ethe 1/1/26 to 1/1/32
router-interface ve 116

!

interface ethernet 1/1/25
port-name "MDF-01"
dual-mode 116
no spanning-tree
no flow-control both
sflow forwarding

!
interface ve 116
ip address 10.16.1.1 255.255.248.0
!

 

If you want an explanation i can do it in my spare time. Have a nice day.

--
Best Regards
Destan YILANCI
New Contributor
Posts: 2
Registered: ‎09-16-2014

Re: 7750 VLAN Tagging

That did it. I wish that was documented somewhere.

 

Thank you kindly!

 

 

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