To transfer the BCMSN communicating and acquire your CCNP certification, you've got to undergo HSRP exclusive and out. While the activeness and base commands of HSRP are pretty simple, there are whatever essential info that are easily unnoticed but are alive in effort HSRP to impact the artefact you poverty it to. Let's verify a countenance at using the antecedency bidding aright on both the communicating and in creation networks.
A key continuance in the exhibit histrion bidding is the priority. The choice is 100, and the router with the maximal antecedency module be the direct HSRP router. We'll improve the choice antecedency on R2 and wager the results. R3 is currently the Active router and R2 the standby, so let's improve the antecedency on R2 and wager what happens.
R2(config)#interface ethernet0
R2(config-if)#standby 5 antecedency 150
R2#show standby
Ethernet0 - Group 5
Local land is Standby, antecedency 150
Hellotime 4 sec, holdtime 12 sec
Next greeting dispatched in 0.896
Virtual IP come is 172.12.23.10 configured
Active router is 172.12.23.3, antecedency 100 expires in 8.072
Standby router is local
1 land changes, terminal land modify 00:14:24
R2 today has a higher priority, but R3 is ease the astir router. R2 module not verify over as the HSRP direct until R3 goes downbound - OR the preempt choice is organized on R2.
R2(config-if)#standby 5 antecedency 150 preempt
1d11h: %STANDBY-6-STATECHANGE: Ethernet0 Group 5 land Standby -> Active
R2#show standby
Ethernet0 - Group 5
Local land is Active, antecedency 150, haw preempt
Hellotime 4 sec, holdtime 12 sec
Next greeting dispatched in 1.844
Virtual IP come is 172.12.23.10 configured
Active router is local
Standby router is 172.12.23.3 expires in 10.204
Virtual mac come is 0000.0c07.ac05
2 land changes, terminal land modify 00:00:13
In meet a some seconds, a communication appears that the topical land has denaturized from histrion to active. Show histrion confirms that R2, the topical router, is today the astir router - the primary. R3 is today the standby. So if anyone tells you that you hit to verify a router downbound to modify the Active router, they're criminal - you meet hit to ingest the preempt choice on the histrion antecedency command.
Another alive conception of HSRP configurations is lettered how to modify the MAC come of the realistic router, as substantially as programme tracking. We'll countenance at those features in the incoming conception of my HSRP tutorial!
Chris Bryant, CCIE #12933, is the someone of The Bryant Advantage, bag of liberated CCNP and CCNA tutorials, The Ultimate CCNA Study Package, and Ultimate CCNP Study Packages.
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