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Combining Port Groups and Service
(V)LAN
This chapter describes how to configure the Port group and Service (V)LAN with overlapped
uplink set or downlink ports. Please refer to Chapter 4 for the possible combinations of
overlapped uplink sets and overlapped downlink ports for each group types.
Overlapped on downlink ports
In this example, a Port group pg_overlap is created with uplink set uplink_1. Interfaces 0/1 ~
0/12 are set to the member of this port group. Service VLAN svlan_overlap with VLAN ID
4094 is created and it is configured with uplink set uplink_2 as its external connection.
Interfaces 0/10 ~ 0/12 are assigned to be the member of this Service VLAN.
The tagged packet with VLAN ID 4094 received on interfaces 0/10 ~ 0/12 will be forwarded to
uplink_2. The tagged packet with VLAN ID rather than 4094 received on interface 0/10 ~ 0/12
will be forwarded to uplink_1. Any packets received on 0/1 ~ 0/9 will be forwarded to
uplink_1.
(BX900-CB1)#configure
(BX900-CB1)(Config)#port-group pg_overlap uplink_1
(BX900-CB1)(Config)#interface range 0/1 – 0/12
(BX900-CB1)(if-range)#no port-group
(BX900-CB1)(if-range)#port-group pg_overlap
(BX900-CB1)(if-range)#exit
(BX900-CB1)(Config)#svc-vlan svlan_overlap 4094 uplink_2
(BX900-CB1)(Config)#interface range 0/10 – 0/12
(BX900-CB1)(if-range)#svc-vlan svlan_overlap
(BX900-CB1)(if-range)#exit
(BX900-CB1)(Config)#exit
(BX900-CB1)#show port-group pg_overlap
Port Group Name Internal Ports
-------------------------- -------------------- ------------------------ ----------------------
pg_overlap
BX900-CB1/0/1 uplink_1
BX900-CB1/0/2
BX900-CB1/0/3
BX900-CB1/0/4
BX900-CB1/0/5
BX900-CB1/0/6
BX900-CB1/0/7
Uplink Set Name External Ports
BX900-CB1/0/41
BX900-CB1/0/42
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