10-13-2009 06:21 AM - edited 03-06-2019 08:06 AM
Hello Folks!!,
This weekend, we have had problems with one of us CPD's switch. The power source failed. Now, we need to adquire a new switch, but we want redundancy on the CPD at least. The problem for this is that all Switch on my enterprise are of different vendors and it is unmanagement.
I wanna use STP with two switchs Cisco, but what could happen when I connect other switch to the Cisco's switchs where STP not is supported?.
Thanks in advance!!.
10-13-2009 10:05 AM
Hello Elias,
switches should support 802.1D legacy STP= mono instance STP running in vlan1.
Cisco switches support usually PVST+ be default, that is they have an STP instance for each vlan.
A cisco switch can detect an 802.1D compliant switch and will interact with it on vlan1.
if you put the cisco switches in the core of your network you should be fine.
Hope to help
Giuseppe
10-13-2009 01:36 PM
Hi Giuseppe
Very Thanks by your quick reponse!!.
Then, I can use my old switch, provided this switch comply with 802.1D compliant. I suppose that cisco switches, one of them it will be the root of the STP. Because my old switchs are unmanagmente and I cannot configure the priority of root bridge.
Thanks in advance!!
10-13-2009 01:38 PM
if you configure all your switches with 802.1D then you should be fine.
10-13-2009 11:06 PM
Hi lavramov,
My others switchs are unmanagement, I can configure nothing.
Greetings!!
10-13-2009 11:16 PM
By the other hand, what model of switch to recommend me?.
Thanks in advance.
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