Please find the file attached (config.zip) that has: 1) Diagram 2) Site1-Show spanning-tree bridge 3) Site1-Show spanning-tree interface 4) Site2-Show spanning-tree bridge 5) Site2-Show spanning-tree interface
Juniper at Site 1 is root for VLANs: 20, 23, 24, 26, 28, 29, 201, 203, 215, 222, 223, 230, 231, 233, 234 and 236
Juniper at Site 2 is root for VLANs: 22, 200, 202, 204, 205, 216, 224, 231, 232, 235
Cisco switch at Site 2 has become root bridge for Native vlan 50.
Following configuration exists on Cisco Trunk ports connecting to Juniper Core switches:
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For Eg:
int gi0/1
switchport mode trunk
switchport trunk encapsulation dot1q (wherever required)
switchport trunk native vlan 50
Following configuration exists on Juniper core switch Trunk ports connecting to Cisco switches at SITE-1:
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For Eg:
set interfaces ge-0/0/3 unit 0 family ethernet-switching port-mode trunk vlan members [ 20 22 23 24 26 28 29 201 203 215 216 222 223 230 231 233 234 235 236 ]
set interfaces ge-0/0/3 unit 0 family ethernet-switching native-vlan-id 50
Following configuration exists on Juniper core switch Trunk ports connecting to Cisco switches at SITE-2:
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For Eg:
set interfaces ge-0/0/4 unit 0 family ethernet-switching port-mode trunk vlan members [ 20 22 23 24 26 28 29 200 201 202 203 204 205 215 216 224 231 232 234 235 236 ]
set interfaces ge-0/0/4 unit 0 family ethernet-switching native-vlan-id 50
Following configuration exists on Trunk ports that connect Juniper switches at both sites via Metro-E links (same configuration exists on all 4 trunk ports at both sites connecting Cox and Verizon):
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set interfaces ge-0/1/2 unit 0 family ethernet-switching port-mode trunk vlan members [ 20 22 23 24 26 28 29 201 203 215 216 231 234 235 236 ]
set interfaces ge-0/1/2 unit 0 family ethernet-switching native-vlan-id 50