Exam JN0-664 topic 1 question 95 discussion

Just one L2vpn instance with multiple sites.

Guys you only need one routing instance. Go and study site IDs and attachment circuits.

I believe the answer would have to be three in order to able to seperate all three vlans and send 2 to one site, 1 to another... you couldn't have one RI spending to two vlans to one site and one RI spending one vlan to another site unless they were seperate interfaces.

B B. 2 Explanation: You need one L2VPN routing instance for each site that Site 1 needs to connect to. Since Site 1 needs to access VLANs in both Site 2 and Site 3, you will need two L2VPN routing instances Answer A states that only 1 L2VPN routing instance is required. However, this is not sufficient for the following reasons: Multiple Sites: Site 1 needs to access VLANs located in both Site 2 and Site 3. Each site requires a separate L2VPN routing instance to establish the necessary connections. VLAN Encapsulation: The customer-facing interface on the PE1 router is configured for Ethernet VLAN encapsulation, which means each VLAN needs to be mapped to a specific L2VPN instance. Therefore, to ensure that Site 1 can access VLANs in both Site 2 and Site 3, you need at least 2 L2VPN routing instances, one for each site. Answer C states that 3 L2VPN routing instances are required. Since Site 1 only needs to connect to two sites (Site 2 and Site 3), only 2 L2VPN routing instances are required. Therefore, Answer C is not correct because it suggests more instances than needed.

Physical interface encapsulation ethernet-vlan? Or l2vpn encapsulation ethernet-vlan? If l2vpn encapsulation ethernet-vlan then answer A- One

answer c

I would have thought one, with different site id's ?

I'd says two. One routing-instance for vlan 200 and one routing-instance for VLAN 300 & 301.

Correct answer is 3

Shouldn't be 2? 1 for site2 and 1 for site3? this is not clear for me.

It is a VLAN-CC encapsulation, and it requires 3 L2VPN instances for each VLAN 200, 300 and 301