Friday, April 25, 2014

QinQ and Link Aggregation over EX-4200

Scenario:
  • Two EX-4200 switches are connected back to back over ge-0/0/12 & ge-0/0/13 interfaces.
  • Both the above mentioned interfaces are part of Aggregated Ethernet interfaces called ae0.
  • ae0.0 interfaces are configured in Trunk mode with VLANs 12 (DATA) & 24 (qinq).
  • QinQ has been configured over ge-0/0/24 interfaces & these interfaces are in Access mode.
  • Two Cisco C851 routers are connected with ge-0/0/24 interfaces of EX-4200s.
  • Fa4 interfaces of Cisco 851 are configured with two tagged sub-interfaces.
  • Interfaces ge-0/0/10 are configured with VLAN 12 (DATA) in access mode and laptops have been connected to them.



Configuration Details:

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