Hi All,
i have a doubt what will happen under such scenario.. pls refer the R1 configs and topology diagram..
SCENARIO 1:
****************
LOOPBACK > Advertised into Eigrp 123 via network 128.166.0.0 > REDISTRIBUTED INTO BGP 123 > ADV SUMMARY via aggregate-address 128.166.128.0 255.255.224.0 summary-only
in the above scenario under any circumstance the summary will be advertised as loopback will be up even though the all the downlinks F0/0 are down..
SCENARIO 2:
****************
LOOPBACK > Redistribute connected in EIGRP 123 network 128.166.130.177 0.0.0.0 no auto-summary > REDISTRIBUTED INTO BGP 123 > ADV SUMMARY via aggregate-address 128.166.128.0 255.255.224.0 summary-only
Now i cant see the loopback subnet in the bgp table ????????
SCENRIO 3:
STATIC ROUTE to reach a 128.166 subnet > Redistribute static in EIGRP 123 > REDISTRIBUTED INTO BGP 123 > ADV SUMMARY via aggregate-address 128.166.128.0 255.255.224.0 summary-only
what will happen now, wil the route still got advertised if the static next hop ip goes down ????????????
ROUTER CONFIG
**********************
R1
interface Loopback0
ip address 128.166.130.246 255.255.255.255
!
interface FastEthernet0/0
ip address 128.166.130.177 255.255.255.248
!
interface Serial1/0
ip address 192.124.75.53 255.255.255.252
!
router eigrp 123
network 128.166.0.0
auto-summary
!
router bgp 123
bgp log-neighbor-changes
neighbor 192.124.75.54 remote-as 1
redistribute eigrp 123
network 192.124.75.52 mask 255.255.255.252
aggregate-address 128.166.128.0 255.255.224.0 summary-only
!