=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2016.11.20 09:47:35 =~=~=~=~=~=~=~=~=~=~=~= show run Building configuration... Current configuration : 5455 bytes ! version 12.2 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname s1 ! enable password cisco ! no aaa new-model errdisable recovery cause link-flap errdisable recovery interval 30 ip subnet-zero ip routing ! ! ! ! crypto pki trustpoint TP-self-signed-829118592 --More-- *Mar 1 00:43:23.383: %PM-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Fa0/23 --More--   enrollment selfsigned subject-name cn=IOS-Self-Signed-Certificate-829118592 revocation-check none rsakeypair TP-self-signed-829118592 ! ! crypto pki certificate chain TP-self-signed-829118592 certificate self-signed 01 30820239 308201A2 A0030201 02020101 300D0609 2A864886 F70D0101 04050030 30312E30 2C060355 04031325 494F532D 53656C66 2D536967 6E65642D 43657274 69666963 6174652D 38323931 31383539 32301E17 0D393330 33303130 30303035 395A170D 32303031 30313030 30303030 5A303031 2E302C06 03550403 1325494F 532D5365 6C662D53 69676E65 642D4365 72746966 69636174 652D3832 39313138 35393230 819F300D 06092A86 4886F70D 01010105 0003818D 00308189 02818100 95F3E751 7CF838DD E31A1D2C 71D19BE0 903857A5 C1288720 FB60CF2C 6BE1C93F 60D123D7 3403E516 74D1B343 3D61A714 14583AAE F57B7CBC F74A12B2 4C8E46E3 3E514933 ED958746 CABC588C 07FDC0D3 BD1D4C26 A7084F4D BF610417 810AB2FE 8469DC14 A3D58692 33A4D9D3 8FAC12F8 9935DB56 9B2A7C27 A51F0E31 2B575C57 02030100 01A36330 61300F06 03551D13 0101FF04 05300301 01FF300E 0603551D 11040730 05820373 312E301F 0603551D 23041830 168014FD 78B290C3 75377487 7C832AD1 93529CA9 0DBEDA30 1D060355 1D0E0416 0414FD78 B290C375 3774877C 832AD193 529CA90D BEDA300D 06092A86 4886F70D 01010405 00038181 001CB157 2CEAA226 BC98A743 3F9EAF5D 4D760BF3 89EBBEB9 AB11C383 ECFA8465 4F1BEA59 --More--   C27CB660 2E829B43 3B19860D B917F788 6154B81A B6A79246 46E3B118 41365DEC 06269480 5A109700 9E46CBF5 36613282 1B8AA25C 708AB584 99082710 2642FA78 33C580BD 75AFC99F 7F1BC230 B29FB0D0 04C9F0BE 1C6407E1 62BE58E7 87 quit ! ! spanning-tree mode pvst spanning-tree etherchannel guard misconfig spanning-tree extend system-id ! vlan internal allocation policy ascending ! ! ! ! ! ! interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/2 --More--   switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/3 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/4 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/5 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/6 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast --More--  ! interface FastEthernet0/7 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/8 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/9 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/10 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/11 switchport trunk encapsulation dot1q --More--   switchport mode trunk spanning-tree portfast ! interface FastEthernet0/12 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/13 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/14 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/15 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! --More--  interface FastEthernet0/16 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/17 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/18 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/19 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/20 switchport trunk encapsulation dot1q switchport mode trunk --More--   spanning-tree portfast ! interface FastEthernet0/21 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/22 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface FastEthernet0/23 switchport access vlan 11 switchport trunk encapsulation dot1q switchport mode trunk switchport voice vlan dot1p switchport priority extend trust mls qos trust cos priority-queue out spanning-tree portfast spanning-tree bpduguard enable ! --More--  interface FastEthernet0/24 switchport trunk encapsulation dot1q switchport mode trunk spanning-tree portfast ! interface GigabitEthernet0/1 switchport mode dynamic desirable ! interface GigabitEthernet0/2 switchport mode dynamic desirable ! interface Vlan1 no ip address ! interface Vlan11 ip address 192.168.9.1 255.255.255.0 ! ip classless ip http server ip http secure-server ! ! ! --More--  control-plane ! alias exec ii show ip interface bri ! line con 0 password cisco logging synchronous login line vty 0 4 exec-timeout 30 0 password cisco logging synchronous login line vty 5 15 login ! end s1# $                    *Mar 1 00:43:32.643: %PM-4-ERR_DISABLE: link-flap error detected on Fa0/23, putting Fa0/23 in err-disable state s1#$ s1# *Mar 1 00:44:02.647: %PM-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Fa0/23 s1# *Mar 1 00:44:11.923: %PM-4-ERR_DISABLE: link-flap error detected on Fa0/23, putting Fa0/23 in err-disable state s1# *Mar 1 00:44:41.915: %PM-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Fa0/23 s1# *Mar 1 00:44:51.171: %PM-4-ERR_DISABLE: link-flap error detected on Fa0/23, putting Fa0/23 in err-disable state s1#