3Com 9100 manual Switch

68CHAPTER 4: VIRTUAL LANS (VLANS)

Figure 8 illustrates a single VLAN that spans two Switch 9100 devices. All ports on both switches belong to VLAN Sales. The two switches are connected using port 1 on Switch 1, and port 6 on Switch 2.

Sales

Switch 1

Switch 2

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Figure 8 Single port-based VLAN spanning two switches

To create multiple VLANs that span two switches in a port-based VLAN, a port on Switch 1 must be cabled to a port on Switch 2 for each VLAN you want to have span across the switches. At least one port on each Switch 9100 must be a member of the VLANs, as well.

Figure 9 illustrates two VLANs spanning two switches. On Switch 1, ports 1 through 3 are part of VLAN Accounting; ports 5 through 8 are part of VLAN Engineering. On Switch 2, ports 1 through 3 are part of VLAN Accounting; ports 5 through 8 are part of VLAN Engineering.