07-17-2020 08:51 AM
I have a network with a 3650 backbone switch, and 5 * 2960 clients switches.
I was just reading an article about STP, and it mentioned it's important that all switches in the network are on the same vesrion.
All the 2960s are running 15.2(2)E7 but the backbone switch is running 16.06.03 - as a general rule, is this likely to cause problems?
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07-17-2020 09:14 AM - edited 07-17-2020 09:17 AM
Yes, it is recommend that all switches in the network are on the same version of STP. Rapid STP mode (802.1w) is recommended rather than default STP (802.1d). if you have a lot of vlans, you can change to MST (s). If you add new switch with STP to already running Rapid STP, it will not break anything, it works. But I would change STP to RSTP soon.
All Cisco switches support those versions. So, IOS 15 or XE 16 does not matter. Cisco does define STP as per-vlan STP. Your 3650 backbone switch should be The Root switch for your STP topology.
Regards, ML
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07-17-2020 09:14 AM - edited 07-17-2020 09:17 AM
Yes, it is recommend that all switches in the network are on the same version of STP. Rapid STP mode (802.1w) is recommended rather than default STP (802.1d). if you have a lot of vlans, you can change to MST (s). If you add new switch with STP to already running Rapid STP, it will not break anything, it works. But I would change STP to RSTP soon.
All Cisco switches support those versions. So, IOS 15 or XE 16 does not matter. Cisco does define STP as per-vlan STP. Your 3650 backbone switch should be The Root switch for your STP topology.
Regards, ML
**Please Rate All Helpful Responses **
07-28-2020 02:42 AM
Many thanks for all the responses, much appreciated.
07-17-2020 12:58 PM
07-17-2020 02:06 PM
as per the original post my understanding :
you are asking the IOS version should be the same? not necessarily.
But the STP version should be the same .
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