Nokia VPLS case studies
Nokia VPLS · Put your knowledge to work in context.
The Nokia VPLS exam is a study target for network engineers working with Virtual Private LAN Service in Nokia service-router environments. This page is an independent preparation resource; it is not affiliated with, endorsed by, or sponsored by Nokia, and it does not reproduce any vendor exam content. The five published domains each carry equal weight: VPLS fundamentals and architecture; service configuration and provisioning; pseudowires, SAPs and SDPs; resiliency and redundancy; and operations, verification and troubleshooting. Candidates typically come from IP/MPLS engineering, service-provider transport, or enterprise WAN roles where multipoint Ethernet services must be designed and operated. The Nokia VPLS case studies are 5 cases and about 2,336 words.
1Full mesh or H-VPLS for a 24-site retail VPLS
A regional retailer is replacing a hub-and-spoke Epipe design that forces all store-to-store traffic through two data-center PEs; measured round-trip latency between two stores in the same city is 38 ms. The MPLS core has six Nokia SR OS PEs and 10 Gb/s links; stores connect at 1 Gb/s.
547 words, about 3 min2Jumbo frames fail across an operational VPLS pseudowire
VPLS 200 connects PE-A and PE-B over an LDP-signaled MPLS SDP. PE-A’s access port 1/1/1 has an Ethernet MTU of 9212 and SAP 1/1/1:200; PE-B’s access port 1/2/1 is 1518 and SAP 1/2/1:200.
390 words, about 2 min3New BGP-AD VPLS site does not discover existing peers
VPLS 300 uses BGP-AD across five PEs. The existing four PEs were built with vpls-id 65000:300 , RD 65000:300, and route-target import/export 65000:1300.
468 words, about 2 min4MC-LAG access failover succeeds but VPLS traffic blackholes
VPLS 400 is deployed on four PEs. A customer CE is dual-homed using MC-LAG to PE1 and PE2; PE1 is active and PE2 standby for the VPLS SAP.
478 words, about 2 min5New SAP creates a broadcast storm and FDB pressure
VPLS 500 has three SAPs and two mesh SDPs. It is configured with fdb-table-size 8000 , MAC learning enabled, and no STP.
453 words, about 2 min