What is the configuration of the HSRP

The configuration of the HSRP command syntax WS-C2960S-48LPD-L Price is as follows:

1, the configuration of HSRP member Switch (cofnig-if) #standby group-number IP virtual-ip-address

Group-number: said HSRP group the port belongs to, by assigning a unique number in the backup command to create multiple HSRP group. Virtual-ip-address: virtual HSRP router's IP address, the segment of the IP address.

2, the configuration of HSRP priority

Switch (cofnig-if) #standby group-number priority priority-value

Priority-value: the range of 0-255, the default 100.

3, the configuration of HSRP preemption

Switch (cofnig-if) #standby group-number preempt

Preemption explanation: HSRP high priority in the active router for regular maintenance,HSRP backup router will become the active router. But when the previous high priority active router repaired and added to the HSRP, if you do not configure the preemption right, it will not be from the backup router snatches the active router position, even if it is a higher priority than the backup router configuration, if the words, will be from the low priority router snatchesthe active router position.

4, the configuration of HSRP port tracking

Switch (cofnig-if) #standby group-number track interface-type mod/num interface-priority

Group-number group: the tracking function of port

Interface-type: port type tracking port

Mod/num: the port number tracking port

Interface-priority: when the port failure, hot backup priority router will reduce the value, when the port is available, the router priority will add the value, the default is 10.

Explanation: if you do not set the port tracking port tracking it, when a port router is not available, but it still sends a hello message to tell the other router, the router is available, thedata transmission is not out. When the active router port configuration tracking, when tracking the port is not available, the active router priority will reduce the corresponding value,when becomes available, increased the corresponding value. Switching effect providing faultit very flexible.

5, the configuration of Hello message.

Switch (cofnig-if) #standby group-number times hellotime holdtime

Time interval, the hellotime:hello message of the default 3S, 1-255.

Holdtime:hello message storage time, the default 10s, usually set to three times the Hello interval.

6, check the status of the HSRP

Switch#show standby [interface-type mod/num] [group-number] Brief

Interface-type mod/num: to display the port type and serial number

Group-number: the HSRP display

Brief: display summary information, each backup WS-C2960S-48LPD-L  set up display a line output.

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