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office.
Company XX HQ Æ Switch A Æ Switch B Æ Switch C Æ Switch D Æ Company XX Branch Office.
In this case, VLAN Stacking is enabled on access ports 11 and 12 on Switch B. An SP tag is appended for ingress traffic and the appended SP tagged is removed during egress. VLAN Stacking is also enabled on the tunnel port on switches B (port 10), C, and D. Static VLAN Tx tagging must be DISABLED for the port which is set as a Normal or Access Port. Static VLAN Tx Tagging MUST be enabled on a port set as the Tunnel port.
The following shows the packet flow between Company YY HQ and its branch office.
Company YY HQ Æ Switch F Æ Switch G Æ Switch C Æ Switch B Æ Switch H
ÆCompany YY Branch Office.
VLAN Stacking is enabled on access port 10 on Switch G. An SP tag is appended on the ingress traffic and the SP tag is removed during egress. VLAN Stacking is enabled on a Tunnel port on switches G (port 9), C, and B.
From Switch A to Switch H
Switch A:
Enabled VLAN, VLAN1 and egress tagging on Port 17
Port 1 is connected to another access switch in a building.
Port 17 is connected to port 11 on Switch B
Switch B:
Enabled VLAN Stacking and STP
Port 1 is connected to port 17 on Switch A
Port 2 is connected to port 17 on Switch H
Port 25 is connected to port 25 Switch C
Switch C:
Enabled VLAN Stacking and STP
Port 27 is connected to port 25 on Switch G
Port 26 is connected to port 25 on Switch D
Port 25 is connected to port 25 on Switch B
Switch D:
Enabled VLAN Stacking
Port 1 is connected to port 17 on Switch E
Port 25 is connected to port 26 on Switch C
Switch E:
Enabled VLAN, VLAN1, and egress tagging on Port 17
Port 1 is connected to another access switch in the building.
Port 17 is connected to port 1 on Switch D
Switch F:
Enabled VLAN, VLAN1, and egress tagging on Port 17
Port 1 is connected to another access switch in the building.
Port 17 is connected to port 1 on Switch G
Switch G:
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