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12-17
Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter Software Configuration Guide
OL-12189-01
Chapter 12 Configuring VLANs
Configuring VLAN Trunks
Figure 12-2 shows a network of switches that are connected by ISL trunks.
Figure 12-2 Switches in an ISL Trunking Environment
Figure 12-3 shows a network of switches that are connected by IEEE 802.1Q trunks.
Figure 12-3 Switches in an IEEE 802.1Q Trunking Environment
You can configure a trunk on a single Ethernet interface or on an EtherChannel bundle. For more
information about EtherChannel, see Chapter 37, “Configuring EtherChannels and Link-State
Tracking.”
Catalyst 6500 series
switch
Blade
switch
Blade
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Blade
switch
Blade
switch
VLAN2
VLAN3VLAN1
VLAN1
VLAN2
VLAN3
ISL
trunk
ISL
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ISL
trunk
ISL
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Catalyst 6500 series
switch
Blade
switch
Blade
switch
Blade
switch
Blade
switch
VLAN2
VLAN3VLAN1
VLAN1
VLAN2
VLAN3
IEEE
802.1Q
trunk
IEEE
802.1Q
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IEEE
802.1Q
trunk
IEEE
802.1Q
trunk
202005