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Questions tagged [pvst]

For questions about Per-VLAN Spanning Tree (PVST), where it maintains a spanning tree instance for each VLAN configured in the network. It uses ISL Trunking and allows a VLAN trunk to be forwarding for some VLANs while blocking for other VLANs.

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PVST + MST + RSTP network. Possible to make it work?

I have got a network (around 100 switches) which looks like this: Cisco 2960 - can do PVST, RSTP, MST MRV mr2228-s2c - can do STA, MSTP HP 1810 - can do RSTP, STP Two main Ciscos are linked with ...
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Spanning-tree MSTR port role

What is the MSTR port role in Spanning-tree ? It shows up on boundary ports between MST regions and switches running (R)PVST+. Note that it shows up only on the switches running MST. It seems to ...
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Is Per Vlan Spanning Tree or RPVST an open standard or can it only be implemented by Cisco?

I know there are some standards that are CISCO proprietary but have become open standards. CISCO has also updated the RFC to reflect this. So, is this also true for PVST? Does Juniper or other ...
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Adding new switch to Spanning Tree network

Currently studying Spanning Tree, I'm not sure about the behaviour when we add a new switch to an existing STP topology (with cisco pvst+). Assuming we plug this new bridge called S4 with only one ...
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45 views

Two physical links, different VLANs, no PO. Will PVST shut one link down?

Two devices - switch A and switch B - two physical links (not bonded/channeled) between them. First link is configured for say - access VLAN 10, second for access VLAN 20 (but really it could be two ...