The diagram was R1 connected to R2 and R2 connected to R3 on ospf area 0
Refer to the exibit OSPF is already running with default parameters. If R1 already have loopback 0 & Router-ID configured with that loopback address, then what will SPF computation on R2 after adding R1 one more loopback11 on OSPF?
A. Beacuse 10.11.11.11/32 prefix information will be an LSA type 3 on R2 router ‘s database, R2 router will run partial SPF computation.
B. Beacuse 10.11.11.11/32 prefix will a LSA type 1 on R2 router’s database. R2 router will a full SPF computation, even though an OSPF optimization is applied on R2 router.
C. Adding ispf on command on R2 router, the entire SPT will be computed on R2 router.
D. Adding ispf on command on R2 router, R2 router will only recompute only the affected part of the tree.
