Siemens RUGGEDCOM ROX II, User Manual

Page: 687 / 798

RUGGEDCOM ROX II
CLI User Guide
Chapter 14
Network Redundancy
Implementing MSTP on a Bridged Network 641
Compatibility with STP and RSTP
No special configuration is required for the bridges of an MST region to connect fully and simply to non-MST
bridges on the same bridged network. Careful planning and configuration is, however, recommended to arrive at
an optimal network design.
Section 14.3.3.4
Implementing MSTP on a Bridged Network
The following procedure is recommended for configuring MSTP on a network. Beginning with a set of MSTP-
capable Ethernet bridges, do the following for each bridge on the network:
NOTE
Careful network analysis and planning should inform each step of creating an MSTP network.
NOTE
MSTP does not need to be enabled to map a VLAN to an MSTI. However, the mapping must be identical
for each bridge that belongs to the MSTP region.
1. Disable STP. For more information, refer to Section 14.3.4, “Configuring STP Globally” .
2. Configure one or more Multiple Spanning Tree Instances (MSTI), each with a unique bridge priority. For more
information, refer to Section 14.3.6.3, “Adding a Multiple Spanning Tree Instance” .
3. Create static VLANs and map them to the MSTIs. For more information, refer to Section 8.5.5.2, “Adding a
Static VLAN” .
4. Configure individual MSTI for each switched Ethernet port and/or Ethernet trunk interface that will transmit/
receive MST BPDU (Bridge Protocol Data Unit) traffic. For more information, refer to Section 14.3.7,
“Managing Multiple Spanning Tree Instances Per-Port” .
5. Set the STP protocol version to MSTP, configure the MST region identifier and revision level, and then enable
STP. For more information, refer to Section 14.3.4, “Configuring STP Globally” .
Section 14.3.4
Configuring STP Globally
To configure global settings for the Spanning Tree Protocol (STP), do the following:
1. Make sure the CLI is in Configuration mode.
2. Navigate to
switch » spanning-tree .
3. Configure the basic STP settings by configuring the following parameter(s):
Parameter Description
enabled Synopsis: { true, false }
Default: true
Enables STP/RSTP/MSTP for the bridge globally. Note that STP/RSTP/MSTP is enabled on a
port when it is enabled globally and along with enabling per port setting.
version { version } Synopsis: { stp, rstp, mstp }
Default: rstp