Sorry if I am misunderstanding your diagram. Where do you think the loop should appear?
Routes originating on R8 would appear as connected, and therefore not be overwritten by redistribution, Same on R7. I guess I am just not seeing what the topology is or where you think the break should be. ""paul dong so"" wrote in message news:[EMAIL PROTECTED] > 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 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65964&t=65962 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]