Alteon Application Switch Operating System Application Guide
Table of Contents
Document ID: RDWR-ALOS-V2900_AG1302 25
Segregating VLAN Traffic .................................................................................................... 85
Configuring the Local Network ............................................................................................. 87
Configuring Gateways Per VLAN ........................................................................................ 87
Chapter 5 – Port Trunking...................................................................................... 89
Overview ..................................................................................................................... 89
Statistical Load Distribution ................................................................................................. 90
The Trunk Hash Algorithm ................................................................................................... 90
Built-In Fault Tolerance ........................................................................................................ 91
Link Aggregation Control Protocol Trunking ................................................................ 93
LACP Modes ........................................................................................................................ 93
Configuring LACP ................................................................................................................ 94
Chapter 6 – Port Teaming....................................................................................... 97
Chapter 7 – Spanning Tree Protocol..................................................................... 99
Overview ..................................................................................................................... 99
Bridge Protocol Data Units (BPDUs) ........................................................................... 99
Determining the Path for Forwarding BPDUs ................................................................... 100
Spanning Tree Group Configuration Guidelines ....................................................... 100
Adding a VLAN to a Spanning Tree Group ....................................................................... 101
Creating a VLAN ............................................................................................................... 101
Rules for VLAN-Tagged Ports .......................................................................................... 101
Adding and Removing Ports to and from STGs ................................................................ 101
Spanning Tree Implementations in Trunk Groups ............................................................ 102
Multiple Spanning Trees ........................................................................................... 102
Purpose of Multiple Spanning Trees ................................................................................. 103
Four-Alteon Topology with a Single Spanning Tree ......................................................... 103
Four-Alteon Topology with Multiple Spanning Trees ........................................................ 104
Rapid Spanning Tree Protocol ................................................................................. 105
Port State Changes .......................................................................................................... 106
Port Type and Link Type ................................................................................................... 106
RSTP Configuration Guidelines ........................................................................................ 106
Multiple Spanning Tree Protocol .............................................................................. 107
MSTP Region ................................................................................................................... 108
Common Internal Spanning Tree ...................................................................................... 108
MSTP Configuration Guidelines ....................................................................................... 108
Chapter 8 – Basic IP Routing............................................................................... 111
IP Routing Benefits ................................................................................................... 111
Routing Between IP Subnets ................................................................................... 111
Subnet Routing Example .......................................................................................... 113
Using VLANs to Segregate Broadcast Domains ...................................................... 115