Hello
@mulbreizh wrote:
Most of my network is cisco switch with VTP domain. I just have 4 Aruba switchs on other spanning-tree but connect to the core /
interface lag 1 multi-chassis
description LACP-to-Coeur
no shutdown
no routing
vlan trunk native 999
vlan trunk allowed 1-2,5,15,17,21-22,25-26,45,51,54,56,61-62,70,89,100,102,104,110,999
lacp mode active
spanning-tree bpdu-filter
spanning-tree rpvst-filter
By default arubas usually run mstp and not rstp, it seems the port cfg you hasve shared is the aruba interface (mLAG)
It looks like you are filtering bpdus on this lag for a reason, maybe its the interconnect between the cisco, if that is the case I would leave it be.
FYI when Ive have had to interconnect two STP domains in the past , especially between cisco and aruba, the arubas have a neat feature called rpvst-mstp-interconnect-vlan x which allows you specify the vlan (other than vlan 1) you which to interconnect between the two stp domains and on the cisco pvst simulation seems to work also.
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Kind Regards
Paul
