Cisco CCNP / BCMSN Exam Tutorial: Changing The Active Router In HSRP
To pass the BCMSN Test and gain your CCNP certification, you’ve got to understand HSRP within and out. Though the operation and fundamental instructions of HSRP are rather easy, there are a few vital particulars which have been quickly neglected but are vital in getting HSRP to operate the way you desire it to. Enable’s take a look at using the precedence command correctly on http://www.bbc.co.uk/search?q=토토사이트 both the exam and in production networks.
A critical price inside the demonstrate standby command could be the precedence. The default is a hundred, and also the router with the best precedence will be the Principal HSRP router. We’ll elevate the default priority on R2 and see the outcome. R3 is presently the Active router and R2 the 메이저사이트 standby, so Permit’s elevate the precedence on R2 and see what happens.
R2(config)#interface ethernet0
R2(config-if)#standby 5 priority a hundred and fifty
R2#show standby
Ethernet0 – Team five
Community point out is Standby, priority one hundred fifty
Hellotime 4 sec, holdtime 12 sec
Following howdy despatched in 0.896
Virtual IP address is 172.twelve.23.ten configured
Active router is 172.12.23.three, precedence 100 expires in eight.072
Standby router is nearby
1 point out improvements, previous condition alter 00:fourteen:24
R2 now has a better priority, but R3 continues to be the Lively router. R2 will not likely choose above as the HSRP Key until R3 goes down – OR the preempt selection is configured on R2.
R2(config-if)#standby five precedence 150 preempt
1d11h: %STANDBY-six-STATECHANGE: Ethernet0 Group five state Standby -> Active
Local point out is Active, priority a hundred and fifty, could preempt
Upcoming howdy sent in 1.844
Energetic router is area
Standby router is 172.12.23.three expires in 10.204
Virtual mac deal with is 0000.0c07.ac05
2 state improvements, previous point out transform 00:00:thirteen
In just some seconds, a concept seems the nearby state has transformed from standby to Lively. Present standby confirms that R2, the local router, is currently the Lively router – the primary. R3 has become the standby. So if any person tells you you have to take a router right down to change the Active router, they’re Incorrect – you just must utilize the preempt alternative on the standby priority command.
Yet another crucial part of HSRP configurations is knowing the best way to alter the MAC address on the virtual router, in addition to interface monitoring. We’ll have a look at People functions in the next part of my HSRP tutorial!