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How to use a VLAN (apart from network) over 2 existing switches?
Hello,
Can anyone please help me?
I have 2 existing switches with both the same VLAN.
(These switches (Powerconnect 5324) are connected via fiber optic and already has other vlans.)
How can i let them work together? do i have to use trunking for this?
You have to configure new vlan on both switches for trunking purpose(For example Valn 500). This vlan will contain the ports through witch your switches are connected (For example G24). You are typing exactly the same on both switchs:
Switch(config#) interface ethrnet g24
Switch(config-if#)switchport mode trunk
Switch(config-if#)switchport trunk native vlan 500
Switch(config-if#)switchport trunk allowed vlan add all
Good luck
- Thank you,Just one more question:can i use the 2 fiber channels to connect both switches or just one? (now there is a existing fiber which connects both switches and 1 extra for the vlan- testing). If it is possible with 2, can i use your commands on the second fiber connection?
- network DOWN is always possible.... :smileyhappy:but this can help- to change a port to be contained in a LAG it is advised to NOT have it active.- temporary you can setup a copper-link between the switches,but be careful to swap copper and fiber if not using spanning-tree.= setup a VLAN-trunk for the copper ports= one-action: 1st: remove fibers and 2nd: plug-in copper (within seconds)now the fibers ports are free to re-configure them in a LAG.(obvious the choice using LAGs or SpanningTree is up to you)
- Hi there,A vlan-trunk is a link which is able to send multiple vlans to the other switch.Vlan-tags (headers) will be use when sending the packets. Note that bothswitches must know all the vlans you share between them.Yes you are able to use both fibers, two options:If you use SpanningTree configure all the fiberports as a vlan-trunk.Enable the spanning-tree on the switch else you create a loopover the 2 fibers connections. Advised is Rapid-Spanningtree modeand use Edgeports where possible.BUT:If you only link up these 2 switches then a 2-gbit trunk (dont confuse with vlan-trunk)or LAG could be created, SpanningTree will not help. SpanningTree will helpif you connect more than two-switches.First create the LAG on both switches containing the fiberports you prefer.Then create a VlanTrunk using the LAG as if it is a single link just like a singlefiber link.
hello again,
i have a small problem with these vlan. Probably it is very simple, but i don t know.
I have to switches connected with UTP
on both switches i created the same vlan with the same id and name.
on both switches i connected a client and did not put these clients ports in this vlan
the ports on the switch which are connected by UTP, these i did put in these created vlan
how is it possible that i can ping client B from client A?
A.Sluik
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Posted May 24th, 2005 14:00