HSRP
HSRP
R1是172网段的活跃路由，是10网段的备份路由。
R2是172网段的备份路由，是10网段的活跃路由。
●
R1
en
conf t
int f0/0
ip add 10.10.10 .1 255.255.255.0
standby 10 i p 10.10.10 .254
组号是
10
，虚拟
ip是
10.10.10.254
standby 10 priority 110
组号是
10
，优先级是
110.
no shut
exit
int f1/0
ip add 172.16.10.1 255.255.255.0
standby172 ip 172.16.10.254
组号是
172
，虚拟
ip
是
172.16.10.254
standby 172 priority 120
组号是
172
，优先级是
120
no shut
exit
Router#show standby brief
显示
HSRP
的详细状态
P indicates configured to preempt|
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 110 Standby 10.10.10 .2 local 10.10.10 .254
Fa1/0 72 120 Active local 172.16.10.2 172.16.10.254
conf t
int f0/0
standby 10 preempt
占先权
exit
int f1/0
standby 172 preempt
占先权
exit
Router#show standby
FastEthernet0/0 - Group 10
Local state is Standby, priority 110, may preempt
Hellotime 3 sec, holdtime 10 sec
Next hello sent in 0.204
Virtual IP address is 10.10.10 .254 configured
Active router is 10.10.10 .2, priority 120 expires in 7.652
Standby router is local
1 state changes, last state change 00:02:52
IP redundancy name is "hsrp-Fa0/0-10" (default)
FastEthernet1/0 - Group 72
Local state is Active, priority 120
Hellotime 3 sec, holdtime 10 sec
Next hello sent in 1.384
Virtual IP address is 172.16.10.254 configured
Active router is local
Standby router is 172.16.10.2, priority 110 expires in 7.532
Virtual mac address is 0000.0c 07.ac48
2 state changes, last state change 00:03:12
IP redundancy name is "hsrp-Fa1/0-72" (default)
conf t
int f1/0
standby 172 track f0/0 50
端口跟踪
exit
int f0/0
shut
关闭出口
配置占先权的时候，两边都要配置。
●
R2
en
conf t
int f0/0
ip add 10.10.10 .2 255.255.255.0
standby 10 i p 10.10.10 .254
组号是
10
，虚拟
ip
是
10.10.10.254
standby 10 priority 120
组号是
10
，优先级是
120.
no shut
exit
int f1/0
ip add 172.16.10.2 255.255.255.0
standby 172 ip 172.16.10.254
组号是
172
，虚拟
ip
是
172.16.10.254
standby 172 priority 110
组号是
172
，优先级是
110
no shut
exit
Router#show standby brief
P indicates configured to preempt|
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 120 Active local 10.10.10 .1 10.10.10 .254
Fa1/0 72 110 Standby 172.16.10.1 local 172.16.10.254
conf t
int f0/0
standby 10 preempt
占先权
exit
int f1/0
standby 172 preempt
占先权
exit
Router#show standby
FastEthernet0/0 - Group 10
Local state is Active, priority 120, may preempt
占先权
Hellotime 3 sec, holdtime 10 sec
Next hello sent in 2.646
Virtual IP address is 10.10.10 .254 configured
Active router is local
Standby router is 10.10.10 .1, priority 110 expires in 9.468
Virtual mac address is 0000.0c 07.ac 0a
2 state changes, last state change 00:03:16
IP redundancy name is "hsrp-Fa0/0-10" (default)
FastEthernet1/0 - Group 72
Local state is Standby, priority 110
Hellotime 3 sec, holdtime 10 sec
Next hello sent in 2.576
Virtual IP address is 172.16.10.254 configured
Active router is 172.16.10.1, priority 120 expires in 7.640
Standby router is local
1 state changes, last state change 00:02:56
IP redundancy name is "hsrp-Fa1/0-72" (default)
Router#show standby brief
P indicates configured to preempt
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 120 P Active local unknown 10.10.10 .254
Fa1/0 172 110 P Speak 172.16.10.1 unknown 172.16.10.254
Router#show standby brief
P indicates configured to preempt
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 120 P Active local unknown 10.10.10 .254
Fa1/0 172 110 P Standby 172.16.10.1 local 172.16.10.254
●
PC1
的操作
因为
R1
是
172
网段的活跃路由，由于端口
F0/0
被关闭了，
R2
则成为活跃路由，从
10.10.10
.2
过。当端口激活后从
10.10.10.1
过。
①
VPCS 1 >tracert 172.16.10.10
traceroute to 172.16.10.10, 64 hops max
1 10.10.10 .2 266.000 ms
2 10.10.10 .2 375.000 ms
②
VPCS 1 >tracert 172.16.10.10
traceroute to 172.16.10.10, 64 hops max
1 10.10.10 .1 203.000 ms
2 10.10.10 .1 406.000 ms
然后激活接口，则效果是
⒈
Router#show standby brief
P indicates configured to preempt.
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 120 P Active local unknown 10.10.10 .254
Fa1/0 172 110 P Init
初始化
172.16.10.1 unknown 172.16.10.254
⒉
Router#show standby brief
P indicates configured to preempt.
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 120 P Active local 10.10.10 .1 10.10.10 .254
Fa1/0 172 110 P Speak 172.16.10.1 unknown
172.16.10.254
⒊
Router#show standby brief
P indicates configured to preempt.|
Interface Grp Prio P State Active addr Standby addr Group addr
Fa0/0 10 120 P Active local 10.10.10 .1 10.10.10 .254
Fa1/0 172 110 P Standby 172.16.10.1 local 172.16.10.254