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STP 2510-48 and 2510G-24

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rihatum
Occasional Advisor

STP 2510-48 and 2510G-24

Hi All,

I have 2 x 2510-48 10/100 and 2x2510G 24 Port

I have attached the scrshot from procurve discovery
.242 and .243 are LAN Switches (2510-48 Port)
.240 and .241 are the Server Switches (2510G-24 Port)

I have enabled STP on all switches, set the root bridge priority to 0 for .240 so it becomes the STP Root.

When I do "show spanning-tree" on .240

Force Version : MSTP-Operation
CST Root Port : this switch is root

I assume MSTP is beneficial where vlans are in place, we haven't created any vlans, just the default.

Any suggestions ? Shall I do a

spanning-tree force version stp-compatible command on conf t ? or rstp-operation ?

Any other advises in this regard would be helpful ?

Also, i haven't interconnected the two LAN Switches, rather I have used the two GIG ports on each switch to connect them to the "Dual Personality Ports on 2510G, so the switches are connected to both server switches.

I will be grateful for any suggestions you may have.

Kind Regards
6 REPLIES
Michael_Breuer
Esteemed Contributor
Solution

Re: STP 2510-48 and 2510G-24

Hello,
basically MSTP is compatible with RSTP, so you can leave MSTP or you can force RSTP on all switches. Make sure that your central device becomes root bridge (in your case .240 or .241).
i.e. for .240

spanning-tree
spanning-tree priority 0 force-version rstp-operation

and .241
spanning-tree
spanning-tree priority 1 force-version rstp-operation

Cheers,

Michael
www.ingentive.net
Ingentive Networks GmbH
rihatum
Occasional Advisor

Re: STP 2510-48 and 2510G-24

Hi Michael Breuer,

That was mega quick :-)

Thanks for the reply, I will have a look into this now ; I am attaching the configuration for all switches here in a text file as well.

I apply the changes you mentioned after this.

One more thing is, do you think this topology is good as this way if one of the switch fails we can simply plug the servers into the one which would be operational ?

Kind regards
rihatum
Occasional Advisor

Re: STP 2510-48 and 2510G-24

spanning-tree
spanning-tree priority 1 force-version rstp-operation

do i input the above command with a higher priority on the LAN Switches i.e. .242 and .243 as well ?

thanks
Michael_Breuer
Esteemed Contributor

Re: STP 2510-48 and 2510G-24

Hi,

the topology is fine. You should consider using adapter teaming on your important servers to have a failover to the second switch (if feasible).
Assigning priorities to the other two switches doesn't make sense, because the switch with prio 2 will only become root bridge if switches with prio 0 and prio 1 are down. But if your two server switches are broken, then your topology is split anyway. Thus in your topology it doesn't make sense to assign a priority to a third switch.

Cheers,

Michael
www.ingentive.net
Ingentive Networks GmbH
rihatum
Occasional Advisor

Re: STP 2510-48 and 2510G-24

Hi Michael,

Thank you for your reply ; I will apply the changes later this afternoon.

Just another quick question :

I have enabled SNMPv3 but was having problems, from HP Procurve Manager to the switches, so I enabled SNMPv2 read access (i think).

Any recommendations for Procurve manager ?

Is there a way in Pcm I can check who is connected to which switch port ?

Kind regards
Michael_Breuer
Esteemed Contributor

Re: STP 2510-48 and 2510G-24

Hello,

I am not aware of any problems with SNMPv3 and PCM. Check your firmware and ensure that you have latest PCM updates.

PCM will draw a topology and there you can see the ports:

PCM 3.0
Network Management Home | Agent Groups | Network Map
In the "Annotations" frame you can turn on "Port Name".

Cheers,

Michael
www.ingentive.net
Ingentive Networks GmbH