On the Juniper EX4300:
admin@EX4300# set interfaces ge-0/0/24 description “v2001 to Spirent”
admin@EX4300# set interfaces ge-0/0/24.0 family ethernet-switching vlan
members v2001
admin@EX4300# set interfaces ge-0/0/25 description “v2002 to Spirent”
admin@EX4300# set interfaces ge-0/0/25.0 family ethernet-switching vlan
members v2002
3. Configure trunk ports that allow tagged traffic from VLANs v2001 and v2002.
On the Juniper Virtual Chassis Fabric:
admin@VCF# set interfaces xe-1/0/2 description “VSTP to Nexus 7010 e3/3”
admin@VCF# set interfaces xe-1/0/2 unit 0 family ethernet-switching
interface-mode trunk
admin@VCF# set interfaces xe-1/0/2 unit 0 family ethernet-switching vlan
members v2001
admin@VCF# set interfaces xe-1/0/2 unit 0 family ethernet-switching vlan
members v2002
admin@VCF# set interfaces ge-0/0/12 description “VSTP to Juniper EX4300 ge-
0/0/12”
admin@VCF# set interfaces ge-0/0/12 unit 0 family ethernet-switching
interface-mode trunk
admin@VCF# set interfaces ge-0/0/12 unit 0 family ethernet-switching vlan
members v2001
admin@VCF# set interfaces ge-0/0/12 unit 0 family ethernet-switching vlan
v2002
On the Juniper EX4300:
admin@EX4300# set interfaces xe-0/2/0 description “VSTP to Nexus 7010 e3/1”
admin@EX4300# set interfaces xe-0/2/0 unit 0 family ethernet-switching
interface-mode trunk
admin@EX4300# set interfaces xe-0/2/0 unit 0 family ethernet-switching vlan
members v2001
admin@EX4300# set interfaces xe-0/2/0 unit 0 family ethernet-switching vlan
members v2002
admin@EX4300# set interfaces ge-0/0/12 description “VSTP to Juniper EX4300
ge-0/0/12”
admin@EX4300# set interfaces ge-0/0/12 unit 0 family ethernet-switching
interface-mode trunk
admin@EX4300# set interfaces ge-0/0/12 unit 0 family ethernet-switching
vlan members v2001
admin@EX4300# set interfaces ge-0/0/12 unit 0 family ethernet-switching
vlan members v2002
4. Enable VLAN spanning tree protocol. This requires deleting rapid spanning tree or
multiple spanning tree (if enabled) and then enabling VSTP for each VLAN.
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