ALCATEL LUCENT - Virtual Private LAN Services Set 1

1.

Fill in the blank for this next sentence. Flooded traffic received on any ____________ in the service is replicated to other spoke SDPs and SAPs and not transmitted on any mesh SDPs.

Spoke SDP Mesh SDP Either (a) or (b) will make this sentence true. Neither (a) nor (b) will make this sentence true.

2.

Port 1/1/1 has been configured as an access port with QinQ encapsulation. Which of the following three statements are true for ingress traffic assuming default configuration? (Choose 3)

sap 1/1/1:*.0 is a valid sap id. sap 1/1/1:100* will accept frames with a single tag of 100. sap 1/1/1:200* will strip the top tag of 200 and the bottom tag will be transparently passed. sap 1/1/1:0* will accept all untagged frames. sap 1/1/1:0* will accept any tagged frames.

3.

Which of the following statements relating to VPLS is false?

A VPLS is a multipoint Layer 2 service. A VPLS allows multiple customer sites to be connected in a single bridged domain. A VPLS on a single node requires a SDP. With an IP/MPLS infrastructure, service providers can provide multiple VPLS services over a common IP/MPLS infrastructure.

4.

Which of the following statements is false?

VPLS is a bridged LAN service. VPLS provides L2 VPN services to CEs. VPLS is a point-to-point service where CEs are presented with point-to-point virtual circuits. CEs that are members of the same VPLS service instance communicate with each other as if they are connected via a bridged LAN.

5.

What is the default service-mtu for a VPLS service?

1500 1514 1518 It depends on the access port MTU.

6.

Which OAM tool can be used to dynamically learn the MAC address of a CE device connected to a SAP within a VPLS service?

oam mac-populate oam mac-ping oam mac-trace oam cpe-ping

7.

During the process of troubleshooting a VPLS problem the "oam mac-purge" command with "register" option was used to purge a MAC address from the FDB.
Which of the following statements is true?

Relearning of the MAC address that was purged can only be done once customer traffic resumes. Relearning of the MAC address that was purged can only be done with the "oam mac-populate" command. Customer traffic destined to the MAC address that was purged will be dropped until the MAC address is relearned with the "oam mac-populate" command. Relearning of the MAC address that was purged can only be done with the "oam mac-register" command.

8.

Which of the following statements is true?

Filter Policies can only be applied on egress. An IP filter can be applied on ingress at the same time a MAC filter is applied on the egress of the SAP. Filter Policies can be based on IP, MAC, and VPI/VCI addresses. Any number of ingress and egress filter policies can be associated with a SAP.

9.

How is the Primary Bridge chosen in a VPLS?

The PE devices participating in the VPLS mesh run a separate Spanning Tree instance in the Core. The Primary Bridge is the Root Bridge for the VPLS mesh. The PE devices participating in the VPLS mesh determine which bridge is closest to Root Bridge. This bridge becomes the Primary Bridge. The PE devices participating in the VPLS mesh determine which bridge has the lowest bridge-id. This bridge becomes the Primary Bridge. The PE devices participating in the VPLS mesh determine which bridge is the Root Bridge. This becomes the Primary Bridge.

10.

When spanning tree is enabled within a VPLS service and the STP mode is 802.1 D 2004 what happens if a PVST BPDU is received on a SAP?

Spanning tree will be disabled on the SAP that the PVST BPDU was received on. The SAP that the PVST BPDU was received on will be disabled to prevent loops. The spanning tree encapsulation will be dynamically changed to PVST on the SAP the PVST BPDU was received on. The PVST BPDU will be ignored and 802.1D 2004 BPDUs will continue to be transmitted on the SAP.

ALCATEL LUCENT - Virtual Private LAN Services Set 1

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ALCATEL LUCENT - Virtual Private LAN Services Set 1

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