I recently upgraded the IOS of a Cisco Catalyst 3650 to Fuji-16.9.4. Ever since the upgrade, the vlan keeps going up and down. This is a display of the log:
*Dec 24 02:33:44.463: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to down
*Dec 24 02:33:45.463: %LINK-3-UPDOWN: Interface Vlan15, changed state to down
*Dec 24 02:33:45.470: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 172.18.5.1 (Vlan15) is down: interface down
*Dec 24 02:33:46.463: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan15, changed state to down
*Dec 24 02:33:47.519: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to up
*Dec 24 02:34:18.799: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to down
*Dec 24 02:34:21.856: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to up
*Dec 24 02:34:52.859: %LINK-3-UPDOWN: Interface Vlan15, changed state to up
*Dec 24 02:34:53.860: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan15, changed state to up
*Dec 24 02:34:54.096: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 172.18.5.1 (Vlan15) is up: new adjacency
*Dec 24 02:35:10.688: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to down
*Dec 24 02:35:11.688: %LINK-3-UPDOWN: Interface Vlan15, changed state to down
*Dec 24 02:35:11.694: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 172.18.5.1 (Vlan15) is down: interface down
*Dec 24 02:35:12.688: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan15, changed state to down
*Dec 24 02:35:13.740: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1/2, changed state to up
*Dec 24 02:35:44.745: %LINK-3-UPDOWN: Interface Vlan15, changed state to up
*Dec 24 02:35:45.746: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan15, changed state to up
*Dec 24 02:35:46.858: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 172.18.5.1 (Vlan15) is up: new adjacency
These are the settings related on the interface and the vlan:
interface GigabitEthernet1/1/2
switchport trunk allowed vlan 15
switchport mode trunk
speed nonegotiate
interface Vlan1
ip address 10.10.36.1 255.255.254.0
ip helper-address 10.10.4.30
ip helper-address 10.10.4.32
interface Vlan15
ip address 172.18.5.2 255.255.255.0
router eigrp JCL-EIGRP
router eigrp JCPL-EIGRP
address-family ipv4 unicast autonomous-system 100
topology base
exit-af-topology
network 10.10.36.1 0.0.0.0
network 172.18.5.2 0.0.0.0
exit-address-family
Is there anywhere I should be looking at?
