Hi
Data Center deployment.
PE switches running EIGRP to Aggregation switches.
Issue PE switch only has iBGP route in table (ignoring EIGRP update for same subnet).
In the following you can see issue (related to subnet 10.87.76.0/28)
PE switch
10.87.76.0/28 is an SVI on AGG switch. (EIGRP between PE and AGG switch)
10.87.76.0/28 learnt via iBGP (ignores EIGRP for exactly same route).
PE# sh ip ro vrf corp 10.87.76.0/28
IP Route Table for VRF "corp"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>
10.87.76.0/28, ubest/mbest: 1/0
*via 10.10.10.16%default, [200/0], 17:09:20, bgp-65000, internal, tag 65000, (mpls-vpn)
Other routes (SVI on AGG switch) learnt via EIGRP (hence EIGRP working fine between AGG and PE switch):
PE# sh ip ro vrf corp 10.9.27.48/28
IP Route Table for VRF "corp"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>
10.9.27.48/28, ubest/mbest: 2/0
*via 10.10.39.2, Eth2/21.941, [90/3072], 3d18h, eigrp-101, internal
*via 10.10.39.14, Eth2/22.944, [90/3072], 3d18h, eigrp-101, internal
AGG switch
AGG switch 10.9.27.48/28 directly connected which is preferred as you would expect)
AGG# sh ip ro vrf corp 10.87.76.0/28
IP Route Table for VRF "corp"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>
10.87.76.0/28, ubest/mbest: 1/0, attached
*via 10.87.76.2, Vlan65, [0/0], 5d14h, direct
via 10.10.39.1, Eth2/12.941, [170/51456], 17:10:55, eigrp-101, external
Why is PE switch ignoring EIGRP updates for 10.9.27.48/28 from AGG switch?
Thanks
