问题描述：
S5560 每个端口都做了vlan，前1-6个端口分别下联二层交换，其他端口作1个VLAN 供服务器组使用。
前一周突然出现部分断网，查找发现有一台二层交换下的设备无法获取到IP，测试二层无法ping通，无法登录，当时认为是二层问题，重置后 导入配置，显示成功，重启后 查看配置是没有的，折腾多次都没用，后续直接当傻瓜交换机，不要任何配置，接在其他二层上 却能正常使用。
后续华三工程师让我测试下 三层是否能获取到地址， 结果不管是下联二层接口 还是服务器组端口 都无法获取到ip， 我连接到服务器vlan 手动ip也无法上网，然后 华三工程师怀疑是三层故障问题，当时也把三层配置给他看过 没发现问题。刚刚打完华三电话 准备提个单子， 结果刚过保 不支持电话。。。。。 大佬们给看看是啥原因，
配置如下：
| sysname 核心交换机 |
| # |
| clock timezone Lisbon add 00:00:00 |
| clock protocol ntp |
| # |
| telnet server enable |
| # |
| irf mac-address persistent timer |
| irf auto-update enable |
| undo irf link-delay |
| irf member 1 priority 1 |
| # |
| dhcp enable |
| dhcp server forbidden-ip 192.168.29.240 192.168.29.250 |
| # |
| lldp global enable |
| # |
| password-recovery enable |
| # |
| vlan 1 |
| description luyouqihulian |
| # |
| vlan 2 |
| description guanliwangluo |
| # |
| vlan 11 |
| description neibufuwuqi |
| # |
| vlan 18 |
| description xiangmutuozhan |
| # |
| vlan 19 |
| description shangguanzhongxin |
| # |
| vlan 20 |
| description zhanluezhaoshang |
| # |
| vlan 21 |
| description touzizhongxin |
| # |
| vlan 22 |
| description fawuzhongxin |
| # |
| vlan 23 |
| description caiwuzhongxin |
| # |
| vlan 24 |
| description renshixingzhen |
| # |
| vlan 25 |
| description shuzihuakejizhongxin |
| # |
| vlan 26 |
| description pinpaizhongxin |
| # |
| vlan 27 |
| description yingxiaozhongxin |
| # |
| vlan 28 |
| description huiyishi |
| # |
| vlan 29 |
| description wuxian1 |
| # |
| vlan 30 |
| description wuxian2 |
| # |
| vlan 31 |
| description yuliu1 |
| # |
| vlan 32 |
| description yuliu2 |
| # |
| vlan 33 |
| description yuliu3 |
| # |
| vlan 34 |
| description yuliu4 |
| # |
| vlan 35 |
| description yuliu5 |
| # |
| vlan 36 |
| description dayinji |
| # |
| vlan 66 |
| description zhongxinzongfuzeren |
| # |
| stp global enable |
| # |
| dhcp server ip-pool caiwuzhongxin |
| gateway-list 172.16.23.1 |
| network 172.16.23.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool dayinji |
| gateway-list 172.16.36.1 |
| network 172.16.36.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool fawuzhongxin |
| gateway-list 172.16.22.1 |
| network 172.16.22.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool huiyishi |
| gateway-list 172.16.28.1 |
| network 172.16.28.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool pinpaizhongxin |
| gateway-list 172.16.26.1 |
| network 172.16.26.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool renshixinzhengzhongxin |
| gateway-list 172.16.24.1 |
| network 172.16.24.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool shangguanzhongxin |
| gateway-list 172.16.19.1 |
| network 172.16.19.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool shuzihuakeji |
| gateway-list 172.16.25.1 |
| network 172.16.25.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool touzizhongxin |
| gateway-list 172.16.21.1 |
| network 172.16.21.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool wuxian1 |
| gateway-list 172.16.29.1 |
| network 172.16.29.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| expired day 0 hour 1 |
| static-bind ip-address 172.16.29.126 mask 255.255.255.0 hardware-address b46d-8398-1f70 |
| static-bind ip-address 172.16.29.198 mask 255.255.255.0 hardware-address 0180-5e4f-1cd7-ca |
| static-bind ip-address 172.16.29.245 mask 255.255.255.0 hardware-address 9ce8-9594-9a51 |
| # |
| dhcp server ip-pool wuxian2 |
| gateway-list 172.16.30.1 |
| network 172.16.30.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool xiangmutuozhanzhongxin |
| gateway-list 172.16.18.1 |
| network 172.16.18.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool yingxiaozhongxin |
| gateway-list 172.16.27.1 |
| network 172.16.27.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool yuliu1 |
| gateway-list 172.16.31.1 |
| network 172.16.31.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool yuliu2 |
| gateway-list 172.16.32.1 |
| network 172.16.32.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool yuliu3 |
| gateway-list 172.16.33.1 |
| network 172.16.33.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool yuliu4 |
| gateway-list 172.16.34.1 |
| network 172.16.34.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool yuliu5 |
| gateway-list 172.16.35.1 |
| network 172.16.35.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool zhanluezhaoshang |
| gateway-list 172.16.20.1 |
| network 172.16.20.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| dhcp server ip-pool zhongxinzongfuzeren |
| gateway-list 172.16.66.1 |
| network 172.16.66.0 mask 255.255.255.0 |
| dns-list 202.96.209.133 202.96.209.5 |
| # |
| interface NULL0 |
| # |
| interface Vlan-interface2 |
| ip address 172.16.2.1 255.255.255.0 |
| # |
| interface Vlan-interface11 |
| ip address 172.16.11.1 255.255.255.0 |
| # |
| interface Vlan-interface18 |
| ip address 172.16.18.1 255.255.255.0 |
| # |
| interface Vlan-interface19 |
| ip address 172.16.19.1 255.255.255.0 |
| # |
| interface Vlan-interface20 |
| ip address 172.16.20.1 255.255.255.0 |
| # |
| interface Vlan-interface21 |
| ip address 172.16.21.1 255.255.255.0 |
| # |
| interface Vlan-interface22 |
| ip address 172.16.22.1 255.255.255.0 |
| # |
| interface Vlan-interface23 |
| ip address 172.16.23.1 255.255.255.0 |
| # |
| interface Vlan-interface24 |
| ip address 172.16.24.1 255.255.255.0 |
| # |
| interface Vlan-interface25 |
| ip address 172.16.25.1 255.255.255.0 |
| # |
| interface Vlan-interface26 |
| ip address 172.16.26.1 255.255.255.0 |
| # |
| interface Vlan-interface27 |
| ip address 172.16.27.1 255.255.255.0 |
| # |
| interface Vlan-interface28 |
| ip address 172.16.28.1 255.255.255.0 |
| # |
| interface Vlan-interface29 |
| ip address 172.16.29.1 255.255.255.0 |
| # |
| interface Vlan-interface30 |
| ip address 172.16.30.1 255.255.255.0 |
| # |
| interface Vlan-interface31 |
| ip address 172.16.31.1 255.255.255.0 |
| # |
| interface Vlan-interface32 |
| ip address 172.16.32.1 255.255.255.0 |
| # |
| interface Vlan-interface33 |
| ip address 172.16.33.1 255.255.255.0 |
| # |
| interface Vlan-interface34 |
| ip address 172.16.34.1 255.255.255.0 |
| # |
| interface Vlan-interface35 |
| ip address 172.16.35.1 255.255.255.0 |
| # |
| interface Vlan-interface36 |
| ip address 172.16.36.1 255.255.255.0 |
| # |
| interface Vlan-interface66 |
| ip address 172.16.66.1 255.255.255.0 |
| # |
| interface FortyGigE1/0/29 |
| port link-mode bridge |
| # |
| interface FortyGigE1/0/30 |
| port link-mode bridge |
| # |
| interface GigabitEthernet1/0/24 |
| port link-mode route |
| description shanglianluyouqi |
| ip address 172.16.1.2 255.255.255.0 |
| # |
| interface GigabitEthernet1/0/1 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/2 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/3 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/4 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/5 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/6 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/7 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/8 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/9 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/10 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/11 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/12 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/13 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/14 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/15 |
| port link-mode bridge |
| port access vlan 11 |
| # |
| interface GigabitEthernet1/0/16 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/17 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/18 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/19 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/20 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/21 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| # |
| interface GigabitEthernet1/0/22 |
| port link-mode bridge |
| port access vlan 29 |
| # |
| interface GigabitEthernet1/0/23 |
| port link-mode bridge |
| port link-type trunk |
| port trunk permit vlan all |
| mac-address static 9ce8-9594-9a51 vlan 29 |
| # |
| interface M-GigabitEthernet0/0/0 |
| # |
| interface M-GigabitEthernet0/0/1 |
| # |
| interface Ten-GigabitEthernet1/0/25 |
| port link-mode bridge |
| # |
| interface Ten-GigabitEthernet1/0/26 |
| port link-mode bridge |
| # |
| interface Ten-GigabitEthernet1/0/27 |
| port link-mode bridge |
| # |
| interface Ten-GigabitEthernet1/0/28 |
| port link-mode bridge |
| # |
| scheduler logfile size 16 |
| # |
| line class aux |
| user-role network-admin |
| # |
| line class vty |
| user-role network-operator |
| # |
| line aux 0 |
| user-role network-admin |
| # |
| line vty 0 4 |
| authentication-mode scheme |
| user-role network-operator |
| # |
| line vty 5 63 |
| user-role network-operator |
| # |
| ip route-static 0.0.0.0 0 172.16.1.1 |
| # |
| snmp-agent |
| snmp-agent local-engineid 800063A280307BAC3F7E4B00000001 |
| snmp-agent community read public |
| snmp-agent sys-info version all |
| # |
| ssh server enable |
| # |
| radius scheme system |
| user-name-format without-domain |
| # |
| domain system |
| # |
| domain default enable system |
| # |
| role name level-0 |
| description Predefined level-0 role |
| # |
| role name level-1 |
| description Predefined level-1 role |
| # |
| role name level-2 |
| description Predefined level-2 role |
| # |
| role name level-3 |
| description Predefined level-3 role |
| # |
| role name level-4 |
| description Predefined level-4 role |
| # |
| role name level-5 |
| description Predefined level-5 role |
| # |
| role name level-6 |
| description Predefined level-6 role |
| # |
| role name level-7 |
| description Predefined level-7 role |
| # |
| role name level-8 |
| description Predefined level-8 role |
| # |
| role name level-9 |
| description Predefined level-9 role |
| # |
| role name level-10 |
| description Predefined level-10 role |
| # |
| role name level-11 |
| description Predefined level-11 role |
| # |
| role name level-12 |
| description Predefined level-12 role |
| # |
| role name level-13 |
| description Predefined level-13 role |
| # |
| role name level-14 |
| description Predefined level-14 role |
| # |
| user-group system |
| # |
| local-user admin class manage |
| password hash $h$6$OTGXWV/IwAMFlWH+$DzsJaEDn8HS0+AAz5CWBAZ5cgQYigYEg8qunVUT15T9MiEL+XxtrOmgU2JsIuvQtHGK5xiJJHIg/C4u3Hl2btw== |
| service-type ssh telnet http https |
| authorization-attribute user-role level-15 |
| authorization-attribute user-role network-operator |
| # |
| ip http enable |
| # |
| return |
- 2019-09-20提问
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我认真看了一下，配置没有问题，工程师说的意思应该是你设备硬件坏了
- 2019-09-20回答
- 评论(1)
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(0)
嗯嗯 也是让我报个单子 然后让产品专家查看分析了，但是现在过保， 我有点郁闷， 不知咋整
Royann
发表时间：2019-09-20
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我也是没发现故障， 二层接入三层端口1， 然后电脑连接二层 无法获取ip
DHCP server在这个设备上是吧，运行过程中突然出现的问题？现在故障不在估计不好看了。
对 DHCP在三层上，是上周一早上一来发现 断网，后续发现整个交换的pc都无法获取IP， 现在找不到原因