Home » Cisco » 642-661 » How should the EBGP session between R1 and R2 be established to enable load balancing?
Exhibit:
How should the EBGP session between R1 and R2 be established to enable load balancing? (Choose three)
A. Use the maximum-paths 2 option.
B. Use the ebgp-multihop 2 option.
C. Use static routes on R1 and R2 to reach the other router’s loopback.
D. Establish a single EBGP session using the loopback0 interface IP address on R1 and R2.
E. Establish twp EBGP sessions using both the S0 and S1 interface IP address on R1 and R2.
Correct Answer: BCD
Explanation/Reference:
Explanation:
1. B R1 – R2 requires a EBGP ebgp-multihop of 2.
2. C Requires two static routes going to each other router loopback interface
3. D A BGP session of course is required. Only a single connection is required. Use the loopback is what allows things to work even during a failure Wrong Answer
1. A This is not required because there is only on EBGP path. Would need two if static routes were not define and were going between different routers
2. E Not an efficient way of doing things requires double the tables and bandwidth for updates
