4A0-105 Nokia Virtual Private LAN Services Questions and Answers

I-VPLS is configured in the core of the network with an l-MAC address. This l-MAC address is the only MAC learned in the core

The B-VPLS and l-VPLS are configured in the edge. The B-VPLS is configured with a Backbone MAC and is the only MAC learned in the core

Each SDP is configured with a Backbone MAC to hide customer MAC addresses in the core

Each SAP is associated with a common l-MAC to hide customer MAC addresses in the core

TRUE

FALSE

The receiving PE checks the l-TAG in the l-SID to determine if there is a local l-VPLS on the node.

The receiving PE checks the l-SID in the l-TAG to determine if there is a local l-VPLS on the node.

The receiving PE checks the service label in the mpls header to determine if there is a local l-VPLS on the node.

The receiving PE checks the multicast B-DA to see if an l-SID has been mapped to the B-DA that matches a local l-VPLS on the node.

The association must be defined in the user VPLS service.

The association is done when the user VPLS is associated with the same sdp-id in the management VPLS

The association is based on service IDs.

The association is based on customer IDs.

TRUE

FALSE

The service MTU must be equal to or smaller than 1514 bytes.

The service MTU must be 1514 bytes.

The service MTU must be equal to or greater than 1514 bytes.

The service MTU can be any value.

TRUE

FALSE

100

1

25

250

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.

ports must be on the same MDA

ports must have the same speed and duplex settings

auto negotiation must be on

auto negotiation must be off or limited

port must be in access mode only

Bridge B 1/1/3

Bridge B 1/1/2

Bridge C 1/1/2

Bridge C 2/1/1

Bridge D 1/1/1

Bridge D 1/1/3

Bridge E 1/1/1

If the MAC address of this new client device does not reach the upper limit of the configured total number of MAC addresses allowed in the VPLS forwarding database, then the new MAC address will be stored.

The new source MAC addresses will not be entered in the VPLS service forwarding database.

New local source MAC addresses will not be entered in the VPLS service forwarding database, but new remote MAC addresses would continue to be entered.

New remote source MAC addresses will not be entered in the VPLS services forwarding database, but new local MAC addresses would continue to be entered.

A Spanning Tree BPDU will be sent across the mesh flushing the FDB table in all devices participating in the VPLS instance.

Stale information will be used within the VPLS instance to forward traffic until the FDB ages out.

An LDP control message will be sent to all devices in the mesh participating in the VPLS instance. Only MAC addresses associated with the PE that the failure occurred on will be flushed.

An LDP control message will be sent to all devices in the mesh participating in the VPLS instance. The entire FDB in the VPLS instance will be flushed.

A management VPLS carries customer traffic over the non-blocking spoke-SDP

A VPLS service must be defined as a management VPLS upon creation to take on the role of a management VPLS

The state of a spoke-SDP within a user VPLS will take on the state of the spoke-sdp within the management VPLS.

The management VPLS must be created before the user VPLS.

Bridge B 1/1/3

Bridge B 1/1/2

Bridge C 1/1/2

Bridge C 2/1/1

Bridge D 1/1/1

Bridge D 1/1/3

Bridge E 1/1/1

Broadcast traffic will be flooded.

If the unicastSA has not been learned in the FDB, the frame will be dropped.

If the unicast DA has not been learned in the FDB, the frame will be dropped.

All traffic will be dropped, including multicast and broadcast.

Broadcast traffic will be dropped.

There will be no impact on the path-mtu.

The path-mtu will decrease by4 bytes.

The path-mtu will increase by 4 bytes.

The path-mtu will decrease by 8 bytes.

The path-mtu will increase by 8 bytes.

Mesh-sdp

Spoke-sdp

MPLS

GRE

The device will try to force the other side up using the evaluating flag in the PDU.

The device will wait for the trasmit-interval of 5 before trying to rediscover the neighbor.

The device will detect the port change and will wait for normal operation mode.

The device will detect the port change and revert to discovery mode.

802.1D2004

802.1D 1998

comp-dot1w

PVST