RUGGEDCOM RSG2488
User Guide
Chapter 5
Setup and Configuration
Clearing Spanning Tree Protocol Statistics
149
Parameter
Description
set to "auto" to use the standard STP port costs as negotiated (4 for 1Gbps, 19 for 100
Mbps links and 100 for 10 Mbps links).
For MSTP, this parameter applies to both external and internal path cost.
RSTP Cost
Synopsis:
0 to 2147483647 or { Auto }
Default:
Auto
Selects the cost to use in cost calculations, when the Cost Style parameter is set to
RSTP in the Bridge RSTP Parameters configuration. Setting the cost manually provides
the ability to preferentially select specific ports to carry traffic over others. Leave this
field set to "auto" to use the standard RSTP port costs as negotiated (20,000 for 1Gbps,
200,000 for 100 Mbps links and 2,000,000 for 10 Mbps links).
For MSTP, this parameter applies to both external and internal path cost.
5. Click
Apply
.
Section 5.2.10
Clearing Spanning Tree Protocol Statistics
To clear all spanning tree protocol statistics, do the following:
1. Navigate to
Spanning Tree > Clear Spanning Tree Statistics
. The
Clear Spanning Tree Statistics
form
appears.
1
Figure 100: Clear Spanning Tree Statistics Form
1.
Confirm Button
2. Press
Confirm
.
Section 5.3
Managing Classes of Service
Classes of Service (CoS) provides the ability to expediate the transmission of certain frames and port traffic over
others. The CoS of a frame can be set to Normal, Medium, High or Criticial. By default, ROS enforces Normal
CoS for all traffic.
IMPORTANT!
Use the highest supported CoS with caution, as it is always used by the switch for handling network
management traffic, such as RSTP BPDUs.
If this CoS is used for regular network traffic, upon traffic bursts, it may result in the loss of some
network management frames, which in turn may result in the loss of connectivity over the network.
The process of controlling traffic based on CoS occurs over two phases:
