Help with MSTP ...

[MohammadH]

Hello 

we have our Core Switch 8212zl connect to server they have thire own switch built in i want connect two cable from our Core to thire switch one cable Vlan A and the secound Cable is Vlan B if i done this and make the Port 1 for Vlan A untaggad and port 2 For Vlan B will the MSTP block one of them ?

and if it block how can i make two cable work together ?

Thank you.

P.S. This thread has been moved from Switches, Hubs, Modems (Legacy ITRC forum) to ProCurve / ProVision-Based. -HP Forum Moderator

[Richard Brodie_1]

Yes, it will block.

You will be in for a world of pain with MSTP trying to get it to do what you want. I strongly suggest you aggregate the two ports and then tag both VLANs over the trunk, it's way more straightforward.

[MohammadH]

Dear  Richard Brodie_1

what if the two port is taggad or one taggad and the secound untaggad ?

[Richard Brodie_1]

It makes no difference at all; MSTP completely ignores tags.

[MohammadH]

is there a way another than link aggregate ? because maybe switch server don't support aggregate link aggregate so i need know if there another way ?
thank you for your help

[MohammadH]

hello

i have question can i create two MST region name in our Core switch 8212zl ?

[SzGyula]

Hello,

No. One switch can belong to only one MSTP domain. 

[MohammadH]

can i make it work with instance ? if yes then how ?

thank you