python检查交换机端口状态_python 正则表达式 交换机接口配置匹配问题

目标字符s='''!interfaceFastEthernet0/46!interfaceFastEthernet0/47switchportaccessvlan221switchportmodeaccessspanning-treeportfast!interfaceFastEthernet0/48switchportacces...

目标字符

s = '''!

interface FastEthernet0/46

!

interface FastEthernet0/47

switchport access vlan 221

switchport mode access

spanning-tree portfast

!

interface FastEthernet0/48

switchport access vlan 220

switchport mode access

dot1x port-control auto

spanning-tree portfast

!

interface GigabitEthernet0/1

switchport trunk encapsulation dot1q

switchport mode trunk

!'''

p = '(?:interface\s)((?:\w+)+\d+(?:/\d+)*)(?:\n\sswitchport\s)?([a|t]\w+)?(?:\s\w+\s)?(\d+)?(?:\n)?(?:.+\n)?\s?(dot1x)?'

re.findall(p,s)

输出结果是：

[('FastEthernet0/46', '', '', ''), ('FastEthernet0/47', 'access', '221', ''), ('FastEthernet0/48', 'access', '220', 'dot1x'), ('GigabitEthernet0/1', 'trunk', '', '')]

当要想再增加一个匹配项时：

p = '(?:interface\s)((?:\w+)+\d+(?:/\d+)*)(?:\n\sswitchport\s)?([a|t]\w+)?(?:\s\w+\s)?(\d+)?(?:\n)?(?:.+\n)?\s?(dot1x)?(?:.+\n)?\s?(spanning-tree)?'

输出结果是：

[('FastEthernet0/46', '', '', '', ''), ('FastEthernet0/48', 'access', '220', 'dot1x', 'spanning-tree'), ('GigabitEthernet0/1', 'trunk', '', '', '')]

少了('FastEthernet0/47', 'access', '221', '')

需要的信息：FastEthernet0/48，access|truck，VlanId，dot1x，spanning-tree这些项目，因dot1x不是每个接口都出现，故影响到spanning-tree的匹配。

求助，如何能匹配完美，谢谢。

p = '(?:interface\s)((?:\w+)+\d+(?:/\d+)*)\r\n(?:!|\sswitchport\s([at]\w+)(?:\s\w+\s)(\d+)?(?:\r\n)?(?:.+\r\n)?(?:\s)?(dot1x .+[^\r\n])?(?:\r\n)?(?:\s)?(spanning-tree portfast)?)'

('FastEthernet0/1', 'access', '211', '', 'spanning-tree portfast')

('FastEthernet0/4', 'access', '221', 'dot1x port-control auto ', 'spanning-tree portfast')

以上采用python第三方cisco包完成与交换机交互。

交换机show running-config后进行匹配，每行已\r\n结尾。

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