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202
C
HAPTER
9: S
PANNING
T
REE
P
ROTOCOL
Connecting to STP
Systems on Legacy
Switch Units
If you are connecting your Switch to legacy units that support STP, note
the following:
■
Your Switch supports one STP system; however legacy Switch units
(for example, the SuperStack II Switch 1000) may support one STP
system per VLAN. Consequently:
■
If the legacy Switch units use a single VLAN and you connect your
Switch to them using an untagged link, the STP system of your
Switch and the STP system of the legacy Switch units are
combined.
■
If the legacy Switch units use multiple VLANs and you connect your
Switch to them using a VLT tagged link, the STP system of your
Switch and the STP system of the legacy Switch units are
completely separate. This means that if you connect your Switch to
a legacy Switch unit using multiple VLT links, a loop may created.
■
Some legacy units cannot use VLAN 16 if they are using STP. If your
Switch is connected to one of these units, VLAN 16 traffic is blocked
on the port.
Enabling STP
To enable STP on your Switch via the command line interface, see
“Enabling and Disabling Spanning Tree on a Bridge”
on
page 116
.
To enable STP on your Switch via the web management interface:
1
From the web interface, click the
Configuration
icon on the side-bar.
2
Click the
Advanced Stack Setup
hotlink. The Advanced Stack Setup page
is displayed.
3
From the
Spanning Tree
listbox, select Enabled.
4
Click the
Apply
button.
You cannot enable STP if you have set up any resilient links on the Switch.
Summary of Contents for SuperStack II
Page 12: ......
Page 18: ......
Page 42: ......
Page 154: ...154 CHAPTER 4 WORKING WITH THE COMMAND LINE INTERFACE ...
Page 156: ......
Page 162: ...162 CHAPTER 5 PORT TRUNKS ...
Page 169: ...VLANs and Your Switch 169 Figure 32 Forwarding unknown 802 1Q tags ...
Page 173: ...VLAN Configuration for Beginners 173 Figure 34 Simple example Untagged connections using hubs ...
Page 180: ...180 CHAPTER 6 VIRTUAL LANS VLANS ...
Page 188: ...188 CHAPTER 7 FASTIP ...
Page 200: ...200 CHAPTER 9 SPANNING TREE PROTOCOL Figure 49 STP configurations ...
Page 210: ...210 CHAPTER 10 RMON ...
Page 211: ...IV PROBLEM SOLVING Chapter 11 Problem Solving ...
Page 212: ......
Page 224: ...224 CHAPTER 11 PROBLEM SOLVING ...
Page 226: ......