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тАО01-18-2010 05:32 AM
тАО01-18-2010 05:32 AM
4500 trunking mode not working.. help..
Hey,
I'm newbie to 3com switch and are setting up a simple network in our office.Basically I need 2 vlan to be able to talk to each other on all the 26 ports & I set the trunking mode on the all the 26 ports.It means at anytime I need to connect to any of the 26 ports , as long as my client devices are configured correctly with the IP range below and gateway I should able to ping or talk to to each other. But I have no luck doing that work.
vlan 1 192.168.1.0/24 , vlan IP 192.168.1.1/24
vlan 2 192.168.2.0/24 vlan ip 192.168.2.1/24
I just downloaded latest version from 3com website and load into the switch
Any advise or command are highly appreciated.
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тАО01-19-2010 05:01 AM
тАО01-19-2010 05:01 AM
Re: 4500 trunking mode not working.. help..
Hi,
Well, it wouldn't work if your client devices aren't in trunk mode.
Every frame going out from your trunk port on switch is tagged with VLAN id and on the other side of the link another device has to be also in trunk mode to untag arriving frames. Standard client device (like PC) doesn't recognize arriving tagged frames so it's discarding them. IP address doesn't matter in this case.
Regards,
Vangass
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тАО01-21-2010 09:35 PM
тАО01-21-2010 09:35 PM
Re: 4500 trunking mode not working.. help..
Thanks for your response Vangass.
Does it means if my pc is on vlan 1,I must plug it into a vlan1 port and no way I can get it running if I plug into a vlan 2 port although all are configured as trunk port?
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тАО01-22-2010 12:37 AM
тАО01-22-2010 12:37 AM
Re: 4500 trunking mode not working.. help..
Yes, thats right.
In 3Com 5500 series (for sure, don't know about others) there is a possibility to set different vlan on access port depending on mac-address of the connected host -> see mac-authentication in the manual.
Regards
V.
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тАО02-02-2010 07:01 AM
тАО02-02-2010 07:01 AM
Re: 4500 trunking mode not working.. help..
You can configure the ports as hybrid ports, using the VLANs you want as untagged VLANs. Try this script:
interface ethernet 1/0/N => Where N is the port number.
port link-type hybrid
port hybrid vlan 1 2 4 8 34 untagged
port hybrid pvid vlan <native_vlan_id>
You don't need to specify a PVID VLAN ID if you prefer, and in this mode any host that doesn't support trunk mode will work properly in these ports.
HTH
Fred Mancen