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A
PPLICATION
E
XAMPLES
2-5
Making VLAN Connections
These switches support VLANs which can be used to organize any group
of network nodes into separate broadcast domains. VLANs confine
broadcast traffic to the originating group, and can eliminate broadcast
storms in large networks. This provides a more secure and cleaner network
environment.
VLANs can be based on untagged port groups, or traffic can be explicitly
tagged to identify the VLAN group to which it belongs. Untagged VLANs
can be used for small networks attached to a single switch. However,
tagged VLANs should be used for larger networks, and all the VLANs
assigned to the inter-switch links.
These switches also support multiple spanning trees which allow VLAN
groups to maintain a more stable path between all VLAN members. This
can reduce the overall amount of protocol traffic crossing the network, and
provide a shorter reconfiguration time if any link in the spanning tree fails.
Figure 2-4 Making VLAN Connections
Note:
When connecting to a switch that does not support IEEE 802.1Q
VLAN tags, use untagged ports.
Finance
Marketing
VLAN 3
Untagged Ports
VLAN
unaware
switch
Tagged Port
VLAN
aware
switch
Tagged
Ports
Finance
VLAN 3
R&D
VLAN 2
Testing
R&D
Testing
VLAN 1
VLAN 2
VLAN 4
VLAN 1
8.7A
8.7A
Mgmt
Mgmt
Mgmt
Mgmt
Summary of Contents for 7824M/ESW
Page 2: ......
Page 18: ...TABLE OF CONTENTS xviii E Ordering Information E 1 Glossary Index ...
Page 32: ...ABOUT THE TIGERACCESS SWITCH 1 12 ...
Page 56: ...INSTALLING THE SWITCH 3 18 ...
Page 68: ...TROUBLESHOOTING A 4 ...
Page 76: ...CABLES B 8 ...
Page 82: ...EXTENDER MODULES C 6 ...
Page 92: ...ORDERING INFORMATION E 2 ...
Page 98: ...GLOSSARY Glossary 6 ...
Page 102: ...INDEX Index 4 ...
Page 103: ......