Using EVPN MP-BGP for Service Function Chaining
Question
A service provider wants to use a controller to automate the provisioning of service function chaining.
Which overlay technology can be used with EVPN MP-BGP to create the service chains in the data center?
Answers
Explanations
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A. B. C. D.B.
Service function chaining is a technique that enables the chaining of multiple network services together to form a service chain. In a data center, service function chaining can be used to provide services such as firewalls, load balancers, and WAN optimization, among others.
To automate the provisioning of service function chaining, a service provider can use a controller. A controller is a software application that provides centralized management and automation of network resources.
E VPN (Ethernet VPN) is a network virtualization technology that enables the creation of virtual networks over a shared physical network infrastructure. E VPN uses MP-BGP (Multiprotocol BGP) to distribute MAC address and IP address information among the participating devices in the network. E VPN can be used with overlay technologies such as MPLS L2 VPN, VXLAN, and Provider Backbone Bridging E VPN to create the service chains in the data center.
MPLS L2 VPN (Multiprotocol Label Switching Layer 2 VPN) is a VPN technology that enables the transport of Layer 2 traffic over an MPLS network. MPLS L2 VPN can be used as an overlay technology with E VPN MP-BGP to create service chains in the data center.
VXLAN (Virtual Extensible LAN) is an overlay technology that enables the creation of virtual networks over a physical network infrastructure. VXLAN can be used as an overlay technology with E VPN MP-BGP to create service chains in the data center.
802.1Q is a standard for VLAN tagging in Ethernet networks. It does not provide overlay functionality and therefore cannot be used with E VPN MP-BGP to create service chains in the data center.
Provider Backbone Bridging E VPN (PBB-E VPN) is an overlay technology that provides Layer 2 VPN services over a service provider network. PBB-E VPN can be used with E VPN MP-BGP to create service chains in the data center.
Therefore, the correct answer to the question is either A. MPLS L2 VPN, B. VXLAN, or D. Provider Backbone Bridging E VPN, as all three overlay technologies can be used with E VPN MP-BGP to create service chains in the data center.
