Alcatel-Lucent 7210 SAS M Service Guide

VPLS Features
Page 264 7210 SAS M Services Guide
improvement and transitions conform to 802.1w in 30 seconds (both modes implement
fast convergence over point-to-point links).
• In the RSTP mode, the transmitted BPDUs contain the port's designated priority vector
(DPV) (conforms to 802.1D-2004). Older implementations may be confused by the DPV
in a BPDU and may fail to recognize an agreement BPDU correctly. This would result in a
slow transition to a forwarding state (30 seconds). For this reason, in the comp-dot1w
mode, these BPDUs contain the port's port priority vector (conforms to 802.1w).
The 7210 SAS supports two BDPU encapsulation formats, and can dynamically switch between
the following supported formats (on a per-SAP basis):
• IEEE 802.1D STP
• Cisco PVST

Alcatel-Lucent 7210 SAS M Specifications

General

Brand	Alcatel-Lucent
Model	7210 SAS M
Category	Switch
Language	English