300-415 Question 21
Select 3A network engineer is configuring a Cisco SD-WAN environment and needs to ensure redundancy and load balancing between WAN transports at a remote site. They configure a vEdge router with two Internet connections and one MPLS link. To achieve redundancy and load balancing, which of the following parameters must be unique for each TLOC on the vEdge router?
- A
System IP address
- B
Color
- C
Encapsulation
- D
Private IP address
- E
Transport IP address
Show answer and explanation
Correct answers: B, C, E
Explanation
TLOCs (Transport Locator) are used to define the transport connections on a vEdge router. Each TLOC is uniquely identified by a combination of System IP, Color, Encapsulation, and Transport IP. For redundancy and load balancing, the Color, Encapsulation, and Transport IP must differ for each WAN transport connection, allowing the SD-WAN fabric to distinguish and effectively use each transport.
- A. Incorrect.
The System IP address is a unique identifier for the vEdge router, but it is shared across all TLOCs and does not vary between WAN transports.
- B. Correct.
The Color parameter identifies the WAN transport type (e.g., MPLS, public-internet) and must vary for redundancy and load balancing.
- C. Correct.
Encapsulation (e.g., IPsec or GRE) specifies the tunneling protocol used and must be specified for each TLOC.
- D. Incorrect.
Private IP address is not a TLOC parameter; it is unrelated to the configuration of TLOCs in this scenario.
- E. Correct.
Transport IP address is a unique IP address for each WAN connection and is used to identify TLOCs.