Hi All,
Practicing redistribution.
(route) - r8 - (eigrp) - r7 - ospf- r6
| |
------- eigrp --------
150.50.3.0/24 is redistributed by r8 eigrp, r8 advertises it to r7 via
eigrp. R7 redistributes eigrp to ospf, also redistribute ospf to eigrp.
On r7, ospf database has type 5 LSA for 150.50.3.0/24, AD 110. eigrp
topology has EX route, AD 170. But r7 routing table use eigrp learned
path for forwarding. Why? I was expecting a loop. When will a loop created?
r6 learns the route from ospf and eigrp, it use ospf as the forwarding
path, which is expected.
Partial router config:
r8:
interface Ethernet0
ip address 150.50.3.8 255.255.255.0
router eigrp 1
redistribute connected
no auto-summary
r8#sh ip route | i 150.50.3.0
C 150.50.3.0/24 is directly connected, Ethernet0
r7:
router eigrp 1
redistribute ospf 1 metric 56 100 255 1 1500
router ospf 1
redistribute eigrp 1 metric-type 1 subnets
r7#sh ip route | i 150.50.3
D EX 150.50.3.0/24 [170/46251776] via 150.50.5.69, 01:40:13, Serial4/1
r7#sh ip ospf database | i 150.50.3
Type-5 AS External Link States
150.50.3.0 200.0.0.7 796 0x80000003 0x00186A 1
r7#sh ip route 150.50.3.0
Routing entry for 150.50.3.0/24
Known via "eigrp 1", distance 170, metric 46251776, type external
Redistributing via ospf 1, eigrp 1
Advertised by ospf 1 metric-type 1 subnets tag 1
Last update from 150.50.5.69 on Serial4/1, 01:44:46 ago
Routing Descriptor Blocks:
* 150.50.5.69, from 150.50.5.69, 01:44:46 ago, via Serial4/1
Route metric is 46251776, traffic share count is 1
Total delay is 21000 microseconds, minimum bandwidth is 56 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
r6
r6#sh ip route | i 150.50.3.0
O E1 150.50.3.0/24 [110/30] via 150.50.7.7, 01:19:53, Ethernet0
r6#sh ip ospf database
Type-5 AS External Link States
150.50.3.0 200.0.0.7 927 0x80000003 0x186A 1
Thanks
Paul
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