Cisco CCNP / BCMSN Exam Tutorial: Transforming The Lively Router In HSRP
To pass the BCMSN Test and gain your CCNP certification, you’ve got to know HSRP inside of and out. Even though the operation and primary instructions of HSRP are very simple, usually there are some significant details which have been very easily missed but are very important in getting HSRP to operate how you desire it to. Allow’s Consider utilizing the priority command effectively on both of those the Test As well as in generation networks.
A essential value within the exhibit standby command may be the precedence. The default is 100, plus the router with the best precedence would be the Major HSRP router. We’ll raise the default priority https://en.wikipedia.org/wiki/?search=먹튀검증 on R2 and find out the final results. R3 is currently the Active router and R2 the standby, so Allow’s elevate the priority on R2 and find out what comes about.
R2(config)#interface ethernet0
R2(config-if)#standby five priority one hundred fifty
R2#display standby
Ethernet0 – Group five
Area state is Standby, precedence 150
Hellotime 4 sec, holdtime 12 sec
Upcoming howdy sent in 0.896
Virtual IP handle is 172.twelve.23.ten configured
Energetic router is 172.12.23.three, priority 100 expires in 8.072
Standby router is local
1 condition improvements, previous state modify 00:fourteen:24
R2 now has a higher precedence, but R3 continues to be the active router. R2 won't acquire over as being the HSRP Key until eventually R3 goes down – Or even the preempt choice is configured on R2.
R2(config-if)#standby five precedence 150 preempt
1d11h: %STANDBY-six-STATECHANGE: Ethernet0 Team 5 point out Standby -> Active
Nearby point out is Lively, priority 150, may well preempt
Subsequent hi there sent in one.844
Energetic router is area
Standby router is 172.twelve.23.three expires in ten.204
Digital mac handle is 0000.0c07.ac05
2 condition changes, past condition modify 00:00:13
In just a couple seconds, a information appears the local point out has improved from standby to active. Show standby confirms that R2, the nearby router, is currently the active router – the first. R3 is now the standby. Therefore if any person lets you know you have to have a router down to change the Energetic router, they’re Mistaken – you simply have to make use 먹튀사이트 of the preempt possibility within the standby precedence command.
A different essential Component of HSRP configurations is being aware of the best way to alter the MAC deal with in the Digital router, in addition to interface tracking. We’ll have a look at Individuals capabilities in the following Element of my HSRP tutorial!