Alcatel Unleashed

Hello everyone,

I am new on Alcatel devices and I need your help in order to successfully connect my OS-6850-24 switch with a customer's cisco 6509 running rapid-pvst?
On the network configuration guide I found information mainly about pvst+ interoperability,however when I tried to config pvst+ on my alcatel switch i got an error message.
I think I have to upgrade. What i want to know is if by configuring flat stp on the Alcatel switch will it work with Cisco rapid-pvst?

Really looking froward to your help

Sofia

hello
from DOc

Using 1x1 Spanning Tree Mode with PVST+
In order to interoperate with Cisco's proprietary Per Vlan Spanning Tree (PVST+) mode, the current
Alcatel-Lucent 1x1 Spanning Tree mode allows OmniSwitch ports to transmit and receive either the
standard IEEE BPDUs or Cisco's proprietary PVST+ BPDUs. When PVST+ mode is enabled, a user port
operates in 1x1 mode initially by default, until it detects a PVST+ BPDU which enables that port to
operate in the Cisco PVST+ compatible mode automatically. Thus, an OmniSwitch can have ports running
in 1x1 mode when connecting to another OmniSwitch, or ports running in Cisco PVST+ mode when
connecting to a Cisco switch. So both the Alcatel-Lucent 1x1 and Cisco PVST+ modes can co-exist on the
same OmniSwitch and yet interoperate correctly with a Cisco switch using the standard Spanning Tree
protocols (802.1d or 802.1w).
Note. In the flat Spanning Tree mode, both the OmniSwitch and Cisco switches can interoperate
seamlessly using the standard MSTP protocol.