机房交换机下联客户环路时的日志

songweixun

想请大家帮忙分析下。下图中有交换机日志中的mac地址信息，和端口up，down信息。

Sep  4 11:46:43.992: %SW_MATM-4-MACFLAP_NOTIF: Host e6d4.8575.f2f1 in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:44.025: %SW_MATM-4-MACFLAP_NOTIF: Host b8ca.3af6.e1d2 in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:44.092: %SW_MATM-4-MACFLAP_NOTIF: Host aa2c.06e3.b81a in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:44.159: %SW_MATM-4-MACFLAP_NOTIF: Host 7486.7aee.623d in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:44.528: %SW_MATM-4-MACFLAP_NOTIF: Host 0017.5ac5.53c6 in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:44.973: %SW_MATM-4-MACFLAP_NOTIF: Host 7486.7ae1.1b58 in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:45.225: %SW_MATM-4-MACFLAP_NOTIF: Host 0e0c.93a1.5d77 in vlan 1 is flapping between port Gi0/25 and port Gi0/21
Sep  4 11:46:45.543: %SW_MATM-4-MACFLAP_NOTIF: Host 7486.7ae1.1aba in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:45.678: %SW_MATM-4-MACFLAP_NOTIF: Host 0cda.4165.f789 in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:46.022: %SW_MATM-4-MACFLAP_NOTIF: Host 549f.350a.d5ec in vlan 1 is flapping between port Gi0/21 and port Gi0/25
Sep  4 11:46:46.164: %SW_MATM-4-MACFLAP_NOTIF: Host 5254.00c1.f905 in vlan 1 is flapping between port Gi0/25 and port Gi0/37

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Sep  4 12:10:13.253: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to down
Sep  4 12:10:15.283: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to down
Sep  4 12:10:18.336: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to up
Sep  4 12:10:18.344: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to up
Sep  4 12:10:36.053: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to down
Sep  4 12:10:38.058: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to down
Sep  4 12:10:40.591: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to up
Sep  4 12:10:40.599: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to up
Sep  4 12:11:15.446: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to down
Sep  4 12:11:17.451: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to down
Sep  4 12:11:19.866: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to up
Sep  4 12:11:19.875: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to up
Sep  4 12:12:33.166: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to down
Sep  4 12:12:35.171: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to down
Sep  4 12:12:37.654: %LINK-3-UPDOWN: Interface GigabitEthernet0/7, changed state to up
Sep  4 12:12:37.662: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/7, changed state to up

zhurx

应该是1个非思科的access switch有两个端口上链了思科的access switch 端口。这个非思科的switch不能用stp技术 block 其中一个端口。把它找出来，禁用一个端口就可以了。

Sep  4 11:46:44.025: %SW_MATM-4-MACFLAP_NOTIF: Host b8ca.3af6.e1d2 in vlan 1 is flapping between port Gi0/21 and port Gi0/25