Symptom

When use sub-interface, and change delay on main interface, EIGRP not change the metric. C891FJ g8.XXX (10.X.2.1/24)----(10.X.2.2/24) g0/0/0.XXX ISR4k g0/0/1 (10.X.3.1/24)--- (10.X.3.3/24) g8 C891F (Use EIGRP on all these interface) On C891FJ: Router#sh ip ei to EIGRP-IPv4 Topology Table for AS(100)/ID(10.X.2.2) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 10.X.3.0/24, 1 successors, FD is 3072 via 10.X.2.2 (3072/2816), GigabitEthernet8.XXX P 10.X.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet8.XXX Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int g8 Router(config-if)#del Router(config-if)#delay 50 <<<<changed delay Router(config-if)#do sh ip ei to EIGRP-IPv4 Topology Table for AS(100)/ID(10.X.2.2) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 10.X.3.0/24, 1 successors, FD is 3072 via 10.1.2.2 (3072/2816), GigabitEthernet8.XXX P 10.X.2.0/24, 1 successors, FD is 2816 <<<< directly connected not changed via Connected, GigabitEthernet8.XXX

Conditions

When use sub-interface, but change delay on main interface.

Workaround

1.Change delay on sub-interface. 2.After setting the delay, ‘clear ip eigrp topology’ or ‘clear ip eigrp neighbor’ forced EIGRP to re learn the neighbors. 3.shut/ no shut the main interface.

Further Problem Description