Extreme Networks ExtremeWare XOS Guide Manual page 222

Virtual LANs
Figure 6: Single port-based VLAN spanning two switches
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System 1
System 2
EX_061
To create multiple VLANs that span two switches in a port-based VLAN, a port on system 1 must be
cabled to a port on system 2 for each VLAN you want to have span across the switches. At least one
port on each switch must be a member of the corresponding VLANs, as well.
Figure 7 illustrates two VLANs spanning two switches. On system 2, ports 25 through 29 are part of
VLAN Accounting; ports 21 through 24 and ports 30 through 32 are part of VLAN Engineering. On
system 1, all port on slot 1 are part of VLAN Accounting; all ports on slot 8 are part of VLAN
Engineering.
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ExtremeWare XOS 11.3 Concepts Guide