Based on the illustration shown in the exhibit, what would PE-B do with a VPLS packet received from PE-A if the matching entry in its VPLS routing table showed the destination was connected to PE-D?
A.
PE-B would flood the packet to all attached PEs
B.
PE-B would forward the packet to the root PE device
C.
PE-B would forward the packet to all attached CE devices
D.
PE-B would discard the packet
Explanation:
Reference: http://www.juniper.net/techpubs/software/junos-security/junos-security10.2/junos- security-swconfig-mpls/topic-47047.html
The correct answer is
D.
PE-B would discard the packet
Read below lines and also find link at bottom. Thanks
When a PE router receives a packet from another PE router, it first determines whether it has the destination of the VPLS packet in the appropriate routing table. If it does, the PE router either forwards the packet or drops it depending on whether the destination is a local or remote CE device:
1:-If the destination is a local CE device, the PE router forwards the packet to it.
2:-If the destination is a remote CE device (connected to another PE router), the PE router discards the packet.
http://www.juniper.net/techpubs/software/junos-security/junos-security10.2/junos-security-swconfig-mpls/topic-47047.html
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Thanks for the link
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The correct answer is B.
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Sorry, mis-read. The correct answer is D – it would be discarded.
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it is dropped due to sth like split-horizen.
simply speaking ,in VPLS it is no way to get a traffic from lsi then forwated it back to other LSI by default
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