You are asked to deploy VPLS in your network as a new service for several customers, and you must identify
the configuration and provisioning requirements for your customers.
In this scenario, which two statements are correct? (Choose two.)
A.
CE interfaces facing the service provider must be Ethernet interfaces.
B.
VLAN IDs defined on CE interfaces must be the same on both ends unless otherwise negotiated.
C.
PE interfaces facing the core must have VPLS encapsulation enabled.
D.
CE interfaces facing the service provider must be Layer 3 interfaces.
Explanation:
A: VPLS is an Ethernet-based multipoint-to-multipoint Layer 2 VPN.
B: The Ethernet interface on the first CE must use the same VLAN ID as the second CE.Incorrect Answers:
D: VPLS is an Ethernet-based multipoint-to-multipoint Layer 2 VPN.
https://www.juniper.net/techpubs/en_US/release-independent/nce/information-products/topiccollections/feature-guide-virtual-private-lan-service/feature-guide-virtual-private-lan-service.pdf
correct answer should be A and D
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I think A. and B. is correct answers.
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passed the exam with 86%
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@raju congrats.
Is the questions in the blog are valid?
Thanks.
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For L2VPN, I don’t think the CE interfaces towards PE have to be L3. This defeats the whole purpose of having L2VPN connectivity. So, I don’t think option D is a valid option
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Ans : A & B
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The correct answers is A & D.
When a PE router receives a packet from another PE router, it first determines whether it has the destination(CE router) of the VPLS packet in the appropriate routing table
Within a VPLS configuration, a device running Junos OS can act as a PE router. Junos OS passes the VPLS traffic through the following ports and PIMs on the Juniper Networks device to CE routers in the VPLS network:
• Built-in Ethernet ports on front panel
• Gigabit Ethernet uPIMs
• Gigabit Ethernet ePIMs
• Fast Ethernet PIMs
• Fast Ethernet ePIMs
NOTE: Ports on uPIMs and ePIMs must be in routing mode (layer 3 mode) before you can configure the corresponding interfaces for VPLS.
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