MSR3600

现象：

从SW1上ping130.131.12.254和150.131.12.254，当把R3关机时，R4成为master

1、此时如果R4上接了pc且为开机状态，那么130.131.12.254和150.131.12.254可以一直ping通

2、此时如果R4没有接pc或者pc是关机状态，过几秒vlanif10和vlanif20就会从up状态变为down状态，同时master会变为Initialize状态，然后130.131.12.254和150.131.12.254就一直ping不通

问题：

因为vlanif接口状态up变为down，使得master变为Initialize状态，导致网关不通，有办法让vlanif接口一直up的吗？

SW1:

interface Vlan-interface1

  ip address 1.1.1.1 255.255.255.0

#

interface GigabitEthernet1/0/47

  port link-mode route

  ip address 172.16.1.1 255.255.255.252

#

interface GigabitEthernet1/0/48

  port link-mode route

  ip address 172.16.1.5 255.255.255.252

# 

ospf 1 router-id 1.1.1.1

  area 0.0.0.0

    network 1.1.1.0 0.0.0.255

    network 172.16.1.0 0.0.0.3

    network 172.16.1.4 0.0.0.3

R1:

interface LoopBack0

  ip address 1.1.2.1 255.255.255.255

#

interface GigabitEthernet6/0

  port link-mode route

  ip address 172.16.1.2 255.255.255.252

#

interface GigabitEthernet6/1

  port link-mode route

  ip address 145.131.12.1 255.255.255.252

# 

ospf 1 router-id 1.1.2.1

  area 0.0.0.0

    network 145.131.12.0 0.0.0.3

    network 172.16.1.0 0.0.0.3

R2:

interface LoopBack0 

  ip address 1.1.2.2 255.255.255.255

#

interface GigabitEthernet6/0

  port link-mode route

  ip address 172.16.1.6 255.255.255.252

#

interface GigabitEthernet6/1

  port link-mode route

  ip address 146.131.12.1 255.255.255.252

#

ospf 1 router-id 1.1.2.2

  area 0.0.0.0

    network 146.131.12.0 0.0.0.3

    network 172.16.1.4 0.0.0.3

R3:

interface Vlan-interface10 

  ip address 130.131.12.252 255.255.255.0

  vrrp vrid 10 virtual-ip 130.131.12.254

  vrrp vrid 10 priority 120

#

interface Vlan-interface20

  ip address 150.131.12.252 255.255.255.0

  vrrp vrid 20 virtual-ip 150.131.12.254

#

interface GigabitEthernet6/0

  port link-mode route

  ip address 145.131.12.2 255.255.255.252

#

interface GigabitEthernet0/0

  port link-mode bridge

  port access vlan 10

#

interface GigabitEthernet0/1

  port link-mode bridge

  port access vlan 10

#

interface GigabitEthernet0/2

  port link-mode bridge

  port access vlan 10

#

interface GigabitEthernet5/0

  port link-mode bridge

  port access vlan 20

#

interface GigabitEthernet5/1

  port link-mode bridge

  port access vlan 20

#

interface GigabitEthernet6/1

  port link-mode bridge

  port link-type trunk

  port trunk permit vlan 1 10 20

#

ospf 1 router-id 145.131.12.2

  area 0.0.0.0

    network 130.131.12.0 0.0.0.255

    network 145.131.12.0 0.0.0.3

    network 150.131.12.0 0.0.0.255 

R4:

interface Vlan-interface10

  ip address 130.131.12.253 255.255.255.0

  vrrp vrid 10 virtual-ip 130.131.12.254

#

interface Vlan-interface20

  ip address 150.131.12.253 255.255.255.0

  vrrp vrid 20 virtual-ip 150.131.12.254

  vrrp vrid 20 priority 120

#

interface GigabitEthernet6/0

  port link-mode route

  ip address 146.131.12.2 255.255.255.252

#

interface GigabitEthernet0/0

  port link-mode bridge

  port access vlan 10

#

interface GigabitEthernet0/1

  port link-mode bridge

  port access vlan 10

#

interface GigabitEthernet0/2

  port link-mode bridge

  port access vlan 10

#

interface GigabitEthernet5/0

  port link-mode bridge

  port access vlan 20

#

interface GigabitEthernet5/1

  port link-mode bridge

  port access vlan 20

#

interface GigabitEthernet6/1

  port link-mode bridge

  port link-type trunk 

  port trunk permit vlan 1 10 20

#

ospf 1 router-id 146.131.12.2

  area 0.0.0.0 

  network 130.131.12.0 0.0.0.255

  network 146.131.12.0 0.0.0.3

  network 150.131.12.0 0.0.0.255