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37 Posts
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22231
November 3rd, 2010 10:00
How to configure VLAN trunk mode on PC2748?
Hi,
how do I have to configure the PowerConnect 2748 to do the same thing as this config on a PC 6248:
To configure trunk mode on PowerConnect 6248 I use this on both sides:
vlan database
vlan 2-4,10
exit
interface ethernet 1/g48
description 'Uplink to other PowerConnect6248'
switchport mode trunk
switchport trunk allowed vlan add 1-4,10
exit
How to do the same thing on the webinterface of the 2748?
Thanks a lot
Thilo
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bh1633
909 Posts
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November 3rd, 2010 10:00
- VLAN Membership page:
o add port 48 as tagged (T) to vlan 1
o create vlan 2 and add port 48 as tagged (T) to vlan 2
o create vlan 3 and add port 48 as tagged (T) to vlan 3
o create vlan 4 and add port 48 as tagged (T) to vlan 4
o create vlan 10 and add port 48 as tagged (T) to vlan 10
o change port 48 PVID to 4095 (drop all untagged)
ThiloWunderlich
37 Posts
0
November 4th, 2010 08:00
Thanks a lot for your fast answer.
But I have two problems with it:
o add port 48 as tagged (T) to vlan 1
I cannot change vlan 1 to tagged.
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VLAN Port Settings page:
o change port 48 PVID to 4095 (drop all untagged)
Do I have to set this:
Frame type: admit tag only?
Ingress Filter: enable?
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I definately need VLAN 1 because this is the default VLAN we use besides the mentioned VLANs.
If it does matter, the other side of the trunk is the PowerConnect 6248.
Thanks again
Thilo
bh1633
909 Posts
0
November 4th, 2010 09:00
You have to configure the 2748 and 6248 switches to send and recieve vlan 1 traffic as untagged.
Problem 1:
- 2748: Leave vlan 1 untagged, set the PVID to 1, set Frame Type to: admit all.
- 6248: Add vlan 1 as untagged to the port. Set PVID to 1. Set Frame Type to admit all. (port will have to be in general mode, not trunk mode)
Problem 2:
- Frame Type should be set to admit all since you need to accept untagged traffic.
- ingress filter can be enabled. This will drop tagged packets in vlans that the port is not a member of.
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