我对某些 Vlan 的 Dhcp 有疑问。我的网络是这样的：

我有一个路由器 ASR1001，它连接 15 个交换机（2960）作为环形拓扑。每个交换机都有一个路由器的子接口，所有交换机的 dhcp 都是在路由器上创建的。这是dhcp的配置：

ip dhcp excluded-address 192.168.90.1 192.168.90.10
ip dhcp excluded-address 192.168.90.254


ip dhcp pool SITEA
network 192.168.90.0 255.255.255.0
default-router 192.168.90.254
dns-server 8.8.8.8 8.8.4.4
lease 8

每个交换机的子接口配置是：

interface GigabitEthernet0/0/1.90
description "SITEA"
encapsulation dot1Q 90
ip address 192.168.90.254 255.255.255.0
ip nbar protocol-discovery

我面临的问题是 VLAN 无法接收动态 IP 地址，但可以接收静态 IP 地址。

我尝试删除该 vlan 的 dhcp 配置并再次创建，仍然相同。我也试过重启交换机，也没有帮助。

有什么建议么。

交换机的完整配置：

Building configuration...

Current configuration : 17949 bytes
!
! Last configuration change at 14:48:28 Africa Thu Sep 13 2018
!
version 15.2
no service pad
service timestamps debug datetime localtime
service timestamps log datetime localtime
service password-encryption
!
hostname SITEA
!
boot-start-marker
boot-end-marker
!
logging buffered 64000
logging console informational
enable secret xx
!
no aaa new-model
clock timezone Africa 3 0
switch 1 provision ws-c2960x-24pd-l
!
!
ip dhcp snooping vlan 10-150
no ip dhcp snooping information option
ip dhcp snooping database flash:DHCPSnoopingDB
ip dhcp snooping database write-delay 60
ip dhcp snooping
no ip domain-lookup
ip name-server 8.8.8.8
vtp mode transparent
!
!
!
!
!
!
!

spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
vlan 10
 name CA
!
vlan 20
 name BA
!
vlan 30
 name DA
!
vlan 40
 name FA
!
vlan 50
 name GA
!
vlan 60
 name HA
!
vlan 70
 name IA
!
vlan 80
 name Ben
!
vlan 90
 name SITEA
!
vlan 100
 name KA
!
vlan 110
 name LA
!
vlan 120
 name MA
!
vlan 130
 name OA
!
vlan 140
 name PA
!
vlan 150
 name QA
!
vlan 201
 name SA
!
vlan 299
 name TA
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0
 no ip address
 shutdown
!
interface GigabitEthernet1/0/1
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/2
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/3
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/4
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/5
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/6
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/7
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/8
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/9
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/10
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/11
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/12
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/13
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/14
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/15
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/16
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/17
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/18
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/19
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/20
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/21
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/22
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/23
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/24
 description Un-Trusted Data Port
 switchport access vlan 90
 switchport mode access
 switchport port-security maximum 3
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 no snmp trap link-status
 no cdp enable
 spanning-tree portfast
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 10
!
interface GigabitEthernet1/0/25
 description ** Connection to Sw2 - Gi1/0/25
 switchport trunk native vlan 299
 switchport mode trunk
 switchport nonegotiate
 logging event trunk-status
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 mls qos trust dscp
 ip dhcp snooping trust
!
interface GigabitEthernet1/0/26
 description ** Connection to Sw1 - Gi1/0/25
 switchport trunk native vlan 299
 switchport mode trunk
 switchport nonegotiate
 logging event trunk-status
 srr-queue bandwidth share 1 70 25 5
 priority-queue out
 mls qos trust dscp
 ip dhcp snooping trust
!
interface TenGigabitEthernet1/0/1
!
interface TenGigabitEthernet1/0/2
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan10
 no ip address
 shutdown
!
interface Vlan20
 no ip address
 shutdown
!
interface Vlan30
 no ip address
 shutdown
!
interface Vlan40
 no ip address
 shutdown
!
interface Vlan50
 no ip address
 shutdown
!
interface Vlan60
 no ip address
 shutdown
!
interface Vlan70
 no ip address
 shutdown
!
interface Vlan80
 no ip address
 shutdown
!
interface Vlan90
 no ip address
 shutdown
!
interface Vlan100
 no ip address
 shutdown
!
interface Vlan110
 no ip address
 shutdown
!
interface Vlan120
 no ip address
 shutdown
!
interface Vlan130
 no ip address
 shutdown
!
interface Vlan140
 no ip address
 shutdown
!
interface Vlan150
 no ip address
 shutdown
!
interface Vlan201
 description Management_VLAN Interface
 ip address 10.1.1.90 255.255.255.0
!
interface Vlan299
 no ip address
 shutdown
!
ip default-gateway 10.1.1.254
ip http server
ip http secure-server
!
!
!

路由器的完整代码：

Building configuration...

Current configuration : 15410 bytes
!
! Last configuration change at 11:39:24 UTC Thu Sep 13 2018
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no platform punt-keepalive disable-kernel-core
!
hostname CE-Router
!
boot-start-marker
boot-end-marker
!
!
vrf definition Mgmt-intf
 !
 address-family ipv4
 exit-address-family
 !
 address-family ipv6
 exit-address-family
!
enable secret xx
!
no aaa new-model
!
!
!
!
!
!
!
!
!


ip name-server 8.8.8.8

ip dhcp excluded-address 192.168.20.1 192.168.20.10
ip dhcp excluded-address 192.168.20.254
ip dhcp excluded-address 192.168.30.1 192.168.30.10
ip dhcp excluded-address 192.168.30.254
ip dhcp excluded-address 192.168.40.1 192.168.40.10
ip dhcp excluded-address 192.168.40.254
ip dhcp excluded-address 192.168.50.1 192.168.50.10
ip dhcp excluded-address 192.168.50.254
ip dhcp excluded-address 192.168.60.1 192.168.60.10
ip dhcp excluded-address 192.168.60.254
ip dhcp excluded-address 192.168.70.1 192.168.70.10
ip dhcp excluded-address 192.168.70.254
ip dhcp excluded-address 192.168.80.1 192.168.80.10
ip dhcp excluded-address 192.168.80.254
ip dhcp excluded-address 192.168.90.1 192.168.90.10
ip dhcp excluded-address 192.168.90.254
ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.100.254
ip dhcp excluded-address 192.168.110.1 192.168.110.10
ip dhcp excluded-address 192.168.110.254
ip dhcp excluded-address 192.168.120.1 192.168.120.10
ip dhcp excluded-address 192.168.120.254
ip dhcp excluded-address 192.168.130.1 192.168.130.10
ip dhcp excluded-address 192.168.130.254
ip dhcp excluded-address 192.168.140.1 192.168.140.10
ip dhcp excluded-address 192.168.140.254
ip dhcp excluded-address 192.168.150.1 192.168.150.10
ip dhcp excluded-address 192.168.150.254
ip dhcp excluded-address 192.168.10.1 192.168.10.14
ip dhcp excluded-address 192.168.10.254
ip dhcp excluded-address 192.168.160.1 192.168.160.10
ip dhcp excluded-address 192.168.160.254
ip dhcp excluded-address 192.168.170.1 192.168.170.10
ip dhcp excluded-address 192.168.170.254
!
ip dhcp pool M
 network 192.168.50.0 255.255.255.0
 default-router 192.168.50.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool MO
 network 192.168.10.0 255.255.255.0
 default-router 192.168.10.254
 dns-server 9.9.9.9 8.8.8.8
 lease 8
!
ip dhcp pool Mot
 network 192.168.20.0 255.255.255.0
 default-router 192.168.20.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool MoY
 network 192.168.40.0 255.255.255.0
 default-router 192.168.40.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool C
 network 192.168.60.0 255.255.255.0
 default-router 192.168.60.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool E
 network 192.168.70.0 255.255.255.0
 default-router 192.168.70.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool F
 network 192.168.100.0 255.255.255.0
 default-router 192.168.100.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool G
 network 192.168.120.0 255.255.255.0
 default-router 192.168.120.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool H
 network 192.168.130.0 255.255.255.0
 default-router 192.168.130.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool I
 network 192.168.140.0 255.255.255.0
 default-router 192.168.140.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool J
 network 192.168.150.0 255.255.255.0
 default-router 192.168.150.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool K
 network 192.168.80.0 255.255.255.0
 default-router 192.168.80.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool L
 network 192.168.110.0 255.255.255.0
 default-router 192.168.110.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool O
 network 192.168.30.0 255.255.255.0
 default-router 192.168.30.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool P
 network 192.168.160.0 255.255.255.0
 default-router 192.168.160.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool Q
 network 192.168.170.0 255.255.255.0
 default-router 192.168.170.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
ip dhcp pool SITEA
 network 192.168.90.0 255.255.255.0
 default-router 192.168.90.254
 dns-server 8.8.8.8 8.8.4.4
 lease 8
!
!
!
!
!
!
!
!
!
!
subscriber templating
!
flow exporter CE-ROUTER
 destination 192.168.10.246
 source GigabitEthernet0/0/0
 transport udp 1600
 export-protocol netflow-v5
!
!
flow monitor MONITOR-1
 exporter CE-ROUTER
 record netflow ipv4 original-input
!
multilink bundle-name authenticated
license udi pid ASR1001-X sn xx
!
!
redundancy
 mode none
!
!
cdp run
!
ip tftp source-interface GigabitEthernet0
!


interface TenGigabitEthernet0/0/0
 no ip address
 shutdown
!
interface TenGigabitEthernet0/0/1
 no ip address
 shutdown
!
interface GigabitEthernet0/0/0
 description "Primary Fiber Connection 
 bandwidth 158720
 ip address 172.16.1.2 255.255.255.252
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip nbar protocol-discovery
 ip flow monitor MONITOR-1 input
 negotiation auto
!
interface GigabitEthernet0/0/1
 description "All Ministries LAN Interface" - -Core-Sw1 - Gi1/0/48
 no ip address
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip nbar protocol-discovery
 ip tcp adjust-mss 1452
 negotiation auto
 cdp enable
 service-policy output Parent-LAN-Shaper
!
interface GigabitEthernet0/0/1.10
 description 
 encapsulation dot1Q 10
 ip address 192.168.10.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.20
 description ""
 encapsulation dot1Q 20
 ip address 192.168.20.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.30
 description 
 encapsulation dot1Q 30
 ip address 192.168.30.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.40
 description 
 encapsulation dot1Q 40
 ip address 192.168.40.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.50
 description 
 encapsulation dot1Q 50
 ip address 192.168.50.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.60
 description 
 encapsulation dot1Q 60
 ip address 192.168.60.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.70
 description 
 encapsulation dot1Q 70
 ip address 192.168.70.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.80
 description 
 encapsulation dot1Q 80
 ip address 192.168.80.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.90
 description 
 encapsulation dot1Q 90
 ip address 192.168.90.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.100
 description 
 encapsulation dot1Q 100
 ip address 192.168.100.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.110
 description 
 encapsulation dot1Q 110
 ip address 192.168.110.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.120
 description 
 encapsulation dot1Q 120
 ip address 192.168.120.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.130
 description 
 encapsulation dot1Q 130
 ip address 192.168.130.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.140
 description 
 encapsulation dot1Q 140
 ip address 192.168.140.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.150
 description 
 encapsulation dot1Q 150
 ip address 192.168.150.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.160
 description 
 encapsulation dot1Q 160
 ip address 192.168.160.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.170
 description 
 encapsulation dot1Q 170
 ip address 192.168.170.254 255.255.255.0
 ip nbar protocol-discovery
!
interface GigabitEthernet0/0/1.201
 description 
 encapsulation dot1Q 201
 ip address 10.1.1.254 255.255.255.0
!


!
interface GigabitEthernet0/0/4
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet0/0/5
 no ip address
 shutdown
 negotiation auto
!
interface ATM0/1/0
 no ip address
 shutdown
 no atm enable-ilmi-trap
!
interface GigabitEthernet0
 vrf forwarding Mgmt-intf
 no ip address
 shutdown
 negotiation auto

网络图：