Home > Ticket 2 – HSRP Track (removed)

Ticket 2 – HSRP Track (removed)

May 5th, 2018 in TSHOOT v2 Go to comments

HSRP was configured on DSW1 & DSW2. DSW1 is configured to be active but it does not become active.

Configuration of DSW1:

track 1 ip route 10.2.21.128 255.255.255.224 metric threshold
threshold metric up 1 down 2
!
track 10 ip route 10.1.21.128 255.255.255.224 metric threshold
threshold metric up 63 down 64
!

interface Vlan10
ip address 10.2.1.1 255.255.255.0
standby 10 ip 10.2.1.254
standby 10 priority 200
standby 10 preempt
standby 10 track 1 decrement 60

 

Answer: (use IPv4 Layer 3 Topology)

On DSW1 interface vlan 10 mode, type these commands:
no standby 10 track 1 decrement 60
standby 10 track 10 decrement 60
(ip for track command not exact for real exam)

Note: 10.1.21.129 is the IP address of a loopback interface on R4. This IP belongs to subnet 10.1.21.128/27.

Ans1) DSW1
Ans2) HSRP
Ans3) delete the command with track 1 and enter the command with track 10 (standby 10 track 10 decrement 60).

Note: For more information about IP route tracking and why the command “threshold metric up 63 down 64” is used here please read this tutorial: https://www.networktut.com/hsrp-ip-route-tracking.

Comments (50) Comments
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  1. Tilux
    September 18th, 2010

    pls, anybody describe me why z command below needed

    track 1 ip route 10.28.123.123 255.255.0.0 metric threshold
    threshold metric up 1 down 2

    tnx

  2. Naveed
    September 18th, 2010

    @Tilux
    First of all the above command will create a track group number ‘1’ which can be called later in our command ‘standby 10 track 1 decrement 60’ (where ‘1’ is the group number).
    Secondly, according to exam config above command is included with wrong IP address + Wrong Track group + Wrong IP Address. Which I m sure ‘networktut’ will correct soon.
    Secondly, as per exam, Cisco created two track groups, 1 and 10 in the config and only group 10 is configured correctly which make sure that DSW1 becomes active HSRP. But in the above TT, whats wrong is that they invoked group ‘1’ which is configured wrong(not allowing DSW1 to become active HSRP).
    Let me know if any further clarification is required.

  3. Nipun
    September 19th, 2010

    Hi!!Naveed.
    Why are we tracking the ip address 11.11.11.11 255.255.255.0 in the track 10 ip route 11.11.11.11 255.255.255.0 metric threshold
    threshold metric up 63 down 64 command? and why are we calling this command in standby 10 track 10 decrement 60?
    Kindly explain.

  4. Nipun
    September 19th, 2010

    How do we come to know about the topology to be used out of three in the exam?

  5. Dima
    September 19th, 2010

    I can’t understand how the line “standby 10 track 10 decrement 60” effects the DSW1 active state. It just decreases the priority from 200 to 140, doesn’t it? That would be useful to get DSW1 to a standby state…

  6. Dima
    September 19th, 2010

    I mean how can this line get DSW1 from standby to active state. By decreasing its priority?!

  7. Dima
    September 19th, 2010

    Oh man, I got it. The matter is that we were tracking the wrong route which couldn’t help us to get DSW1 the active router! “decrement 60” doesn’t relate this issue at all.

  8. Nipun
    September 19th, 2010

    @Dima
    kindly explain what did you get?

  9. Lemon
    September 21st, 2010

    11.11.11.11 255.255.255.0 10.28.123.123 255.255.0.0
    Did these ip address appeared in topology when test?
    who can explain it…Thx a lot

  10. eLmo
    September 25th, 2010

    Pass yesterday 1000/1000

    track 1 ip route 10.1.21.128 255.255.0.0 metric threshold
    threshold metric up 1 down 2
    track 10 ip route 10.2.21.128 255.255.255.0 metric threshold
    threshold metric up 63 down 64

    or vice verca didn`t remebmer.
    But route you need is locating in the route table on DSW1.

  11. Naveed
    September 26th, 2010

    @networktut
    Kindly update the track commands as per ‘eLmo’ because same are coming exam.

    @All who wants the logic of above configuration
    We are enabling tracking for the route to R4 (10.2.21.128 = Loop back address of R4), because if the route towards R4 became inactive for some reason and we no more can access R4 via DSW1 then we want DSW2 to become active HSRP. So we created a track group 10 which not only making sure that DSW2 become active in case DSW1 can’t get us through to R4 but also makes DSW1 again active in case our route from DSW1 become active again. In the above trouble ticket, the issue is that they used wrong track group (i.e. 1 ) which is not configured properly, because its threshold statement is not allowing DSW1 to consider the route towards R4 as active resulting in not becoming an active HSRP but the other track group (i.e. 10) is perfectly configured for the same. Thats why by changing the track group number in the command (i.e ‘standby 10 track 10(not 1) decrement 60’ ) is resolving our issue in the above TT. Following are the explanation of the commands used.

    To track the state of an IP route and to enter tracking configuration mode, we are using the ‘track ip route’ command in global configuration mode

    track object-number ip route ip-address/prefix-length metric threshold

    object-number: Object number that represents the object to be tracked. The range is from 1
    to 500.
    ip-address: IP subnet address to the route that is being tracked.
    /prefix-length: The number of bits that comprise the address prefix. A slash must precede
    the value.
    metric threshold: Tracks the threshold metric. The default up threshold is 254 and the default down threshold is 255.

    A tracked IP-route object is considered up and reachable when a routing-table entry exists for the route and the route is accessible.
    To provide a common interface to tracking clients, route metric values are normalized to the range of 0 to 255, where 0 is connected and 255 is inaccessible. The resulting value is compared against threshold
    values to determine the tracking state as follows:
    • State is up if the scaled metric for that route is less than or equal to the up threshold.
    • State is down if the scaled metric for that route is greater than or equal to the down threshold.

    We are using the ‘threshold metric’ tracking configuration command to specify a threshold metric other than the default threshold metric.

    threshold metric up number down number
    up: Specifies the up threshold. The state is up if the scaled metric for that route is less than or equal to the up threshold. The default up threshold is 254.
    down: Specifies the down threshold. The state is down if the scaled metric for that
    route is greater than or equal to the down threshold. The default down threshold is 255.
    number: Threshold value. The range is from 0 to 255.

    I hope it would be helpful. Appropriates any relevant questions and comments.

  12. thanks
    September 27th, 2010

    thanks Naveed. U r the best

  13. networktut
    September 27th, 2010

    Page updated!
    Instead of:
    “track 1 ip route 10.28.123.123 255.255.0.0 metric threshold
    threshold metric up 1 down 2
    !
    track 10 ip route 11.11.11.11 255.255.255.0 metric threshold
    threshold metric up 63 down 64″

    We update into:

    track 1 ip route 10.1.21.128 255.255.0.0 metric threshold
    threshold metric up 1 down 2
    track 10 ip route 10.2.21.128 255.255.255.0 metric threshold
    threshold metric up 63 down 64″

    Thanks eLmo & Naveed

  14. deva
    September 28th, 2010

    hi Naveed once again thanks for your valuable information

    what is the scaled metric how it will compare threshold metric with scaled metric

  15. deva
    September 28th, 2010

    @ Naveed

    Are we tracking the static route or eigrp route in exam

    so in case in realtime if we want to track eigrp route how did we mention the threshold value coz eigrp metric are more than 4 digits

    or else we can track only static route using track command

  16. Joe
    October 2nd, 2010

    @ deva
    I ran my head in the wall for about an hour trying to figure out the tracking of the object, finally this website cleared it up for me.

    http://jupiter.mcom.fr/~clucas/blog/index.php?article573/hsrp-and-track-object

    Basically the EIGRP metric is divided by 2560 to get the lower 0-255 number. You can change that dividing number (resolution) by doing this global command “track resolution ip route eigrp [whatever #]” I had to change the resolution number in my own personal lab in order for the object to track correctly when the link to DSW1 went down.

    Cisco explanation/documentation
    http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/fthsrptk.html#wp1185135

  17. Joe
    October 2nd, 2010

    @ deva
    you can view the scaled metric by doing “show track 10”

    here is the output from my DSW1 to show you

    +++++ Direct link to R4 UP +++++
    DSW1#sh track 10
    Track 10
    IP route 10.2.21.128 255.255.255.0 metric threshold
    Metric threshold is Up (EIGRP/53760/210)
    5 changes, last change 00:09:35
    Metric threshold down 211 up 210
    First-hop interface is FastEthernet0/1
    Tracked by:
    HSRP Vlan10 10

    +++++ Direct link to R4 DOWN ++++
    DSW1#sh track 10
    Track 10
    IP route 10.2.21.128 255.255.255.0 metric threshold
    Metric threshold is Down (EIGRP/54016/211)
    6 changes, last change 00:00:07
    Metric threshold down 211 up 210
    First-hop interface is Vlan10
    Tracked by:
    HSRP Vlan10 10

  18. deva
    October 3rd, 2010

    hi joe thanks a lot now i understand

  19. LUCKY
    October 4th, 2010

    @ NAVEED

    I JUST STARTED STUDYING FOR TROUBLE SHOOT. ( FINAL EXAM IN MY CCNP TRACK).
    I DID THE DEMO VERSION OF THIS EXAM. I GOT ALL THE QUESTIONS RIGHT.

    One think I noticed was that all the trouble shoot ticket questions are same( except the answers).
    so I was wondering If this is true in the real exam ?
    Do we have the same Questions for all the tickets or each ticket has a separate troubleshoot question.

    To be more clear in the demo version. I have noticed a single unique question for all the tickets.
    Client1 can reach some server in the internet (209.xx.xx.xx).

    please clear my doubt.

  20. LUCKY
    October 4th, 2010

    I mean client 1 cannot reach some sever in the internet( 209.xx.xx.xx)

  21. Faiz
    October 7th, 2010

    Loopback address of R4 is 10.2.21.128 .So Track 1 is wrong due to wrong loopback address of R4 (10.1.21.128)
    this is additional reason

    am i correct?

  22. RouterJoe
    October 9th, 2010

    I am good with the tracking and making sure the right group & route is used.
    I am want to verify that I am tracking the symptoms correctly. Will it be basically be the client or DSW1 cannot ping R4, but DSW2 can? Also would a correct assumption be that R4 can ping the server?

  23. Dimo
    October 9th, 2010

    @Naveed thank you
    @networktut Thank you

  24. Naveed
    October 9th, 2010

    @Joe
    Very nice article on ‘Enhanced Object Tracking’, enough to understand the tracking and scaled route metric. Thanks Joe. Highly recommended for all.
    i.e. http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/fthsrptk.html#wp1185135

    @Deva
    I think Joe already has solved your problem very well by sharing above article. Hope u r already CCNP now.

    @Lucky
    Read my post on September 1st, 2010 at page 2 of ‘Share your TSHOOT experience’, u’ll get your answer.

    @Faiz
    Wrong IP address might be a typo mistake here the actual thing is threshold metric.

    @RouterJoe
    For exam point of view, this question has a exclusive symptom which is its question statement i.e. ‘DSW1 does not become active HSRP’ .

    @Dimo
    You are most welcome

  25. thank_god
    October 15th, 2010

    Naveed,thanks a lot to u.U explained all TTs very well.so its very easy to identify the actual problem.I appriciate u.Thanks again.

  26. RouterJoe
    October 15th, 2010

    @Nav ..thanks for clarifying that for me.

  27. kiler
    October 18th, 2010

    hi,@Joe
    i don’t understand what you said that when up,the first-hop interface is fa0/1;when down,the first-hop interface is vlan10.what’s the first-hop interface mean?is the outgoing interface?hope u answer me soon,thx

  28. Laidoff
    October 29th, 2010

    Does anyone know if you can create HSRP on DSW1 and DSW2 in Cisco Packet Tracer?

  29. Naveed
    October 30th, 2010

    @Liadoff
    Yes you can, in Packet Tracer 5.3. Use ‘3560-25PS Multilayer Switch’

  30. nick >;-)
    November 3rd, 2010

    hi all,

    i know this is gonna sound stupid here…
    well can anyone please confirm if the CCIE written exam can act as a prequisite for ccnp and ccip?

    cuz i have cleared all the papers for ccnp and ip and have cleared ccie ( 350-001 ) written is that enuf ???

    please if possible mail me a reply on rockstar_neo@yahoo.co.uk too..

    thanx a ton.

    regards
    nick

  31. sara
    November 3rd, 2010

    hi all, , track number should be equal to group number??????????????????
    if the configuration is
    track 1 ip route 10.2.21.128 255.255.0.0 metric threshold
    threshold metric up 1 down 2
    i mean it tracks the correct route, but with this conf under int vlan 10
    standby 10 track 1 decrement 60
    is all thing ok??????????
    thanks

  32. mml
    November 4th, 2010

    to those who passed the exam congrats and i am really confused cuz on cisco site they said there are 35-40 questions in the exam and all who passed they took about 12 tt, 3-4 mcq, and 1-2 DnD so here is where i get confused this all together not more than 20 q ,,is there another lab or just this one big topology for TT
    so plz some one post about this and which dump is valid and the link for it
    thank u so much guys this site is very helpful

  33. Naveed
    November 4th, 2010

    @sara
    Track number has no chemistry with HSRP group number. Just, we have to call the same track group which we have created, which is 10 in this TT, However it is a good practice to use the same matching number as the HSRP group number. So, the reason we are changing track 1 to 10 is not because HSRP group number is 10 but because we want to call track 10 not 1. By the way in TSHOOT configuration they have created two track groups (1 & 10) with following configurations.

    track 1 ip route 10.1.21.128 255.255.0.0 metric threshold
    threshold metric up 1 down 2
    !
    track 10 ip route 10.2.21.128 255.255.255.0 metric threshold
    threshold metric up 63 down 64
    Since track 1 will not fulfill our purpose(see above posts for details), we need to change it to track 10.
    Sara, I think for this TT, ap direct hi questions py aa gye hu, better to read first all the above posts.

  34. cisco guru
    November 5th, 2010

    take it with all this god willing shit , half you lot are cheating Muslims.. read the Koran brother and you will see that the profit said ” at the point of stealing, cheating the Muslim is no longer a believer”

    you have just become a infidel for the sake of a cert. well done

  35. cisco guru
    November 5th, 2010

    naveed sounds like a paki name

  36. cisco guru
    November 5th, 2010

    nick >;-) another think twat

  37. Naveed
    November 5th, 2010

    @Cisco guru
    1- Before commenting you should read all the above posts, if it was about cheating then that much discussion wasn’t required.
    2- Refer to below Sahih Hadith, which you really needs to know.
    Narrated ‘Abdullah bin ‘Amr: The Prophet never used bad language neither a “Fahish nor a Mutafahish. He used to say “The best amongst you are those who have the best manners and character.”
    (Sahih Bukhari Volume 4, Book 56, Number 759)

    I hope to see some positiveness soon, Inshahallah.

  38. nick >;-)
    November 7th, 2010

    @naveed…

    great work man…..
    maybe that would kick some sense in him…

  39. Jawad
    November 7th, 2010

    Naveed! please do not waste your time replying to this fool. Its very clear “cisco Guru” is just trying to get some attention by posting retarded comments. If he can not spell “prophet” clearly tells me he wouldn’t know anything about “Sahih Bukhari” or any of the Hadith books. You guys are doing an awesome Job. Keep it up!!!. I have completed my CCNP even though at the time i didn’t know about this site. But now i just follow the blog to see what’s going on and every time i come on it i learn something new.

  40. nick >;-)
    November 8th, 2010

    so true….

    by the way guys.. i am havin issues using ssl for gns and wanted secure crt cracked version…

    too many windows with ssl…
    cn any1 help plz…

    also .. any way the cpu usage could be cut down further more than by idlepc in it??? can there be more than 19 routers on i3 processor ????

  41. Naveed
    November 8th, 2010

    @CCIE interested people
    This is an open invitation for the serious people about CCIE. You are advised to send an email to the below mentioned address for enrolling your willingness. We’ll be utilizing the concept of 1+1 = 11 by putting our minds together to study/practice the right thing. Here it doesn’t require a mention for a CCIE candidate but let me clear one thing, ‘THERE IS NO SHORTCUT TO CCIE’, so any body looking for shortcuts, please accept my advance excuse. However, we’ll try to do our best to find out the fastest way and most effective material of practice/study.
    Kindly, enroll your willingness at following email address. Also if you have any question, send to the same address.
    ask_ccie@yahoo.com

    @networktut
    I wish you could have a managed discussion forum for CCIE as you have for CCNP

  42. ring7saturn
    November 9th, 2010

    Folks,
    Regardless of how people want to use this site (short cut, some may call it cheating) is a forum meant for those of us who take a lot longer to learn. Please refrain from comments you know nothing about. To those who have nothing good to say your business is your own! Our business is our own business – we didn’t ask you to come and offer your misguided understanding of the Quran!
    Thank you for your understanding.

  43. Still Confused
    November 10th, 2010

    All,
    Thanks for all the help with this. I have Naveed’s post from Sept 26th but I am still confused. How does track group 10 make sure that DSW2 become active? Doesn’t it just decrease the priority by 60 and isn’t the existing priority 200? Can someone help me understand?

  44. jijo
    November 11th, 2010

    in client ipconfig-10.2.1.3,then ping 10.2.1.254 not sucess.
    so problem is in asw1 or dswi
    check asw1
    1. int fa 1/0/1- switchport access vlan 10-if yes
    2.int fa 1/0/1-port condition-error disabled-if no
    3.int fa 1/0/13 and 23 allowed vlan 10-if yes
    NO PROBLEM IN ASW1
    THEN GO TO DSW1
    check dsw1
    1.check VACL or any filter in vlan 10
    2.check stand by status of track command is wrong
    THESE ARE THE SYMPTOMS
    MY DOUBT IS WHICH ALL COMMANDS I CAN USE HERE TO FIND (I MEAN SUPPORT HERE).here the prioblem is HSRP wrong track command.so which command i should use in dsw1 to find the hsrp wrong track .the only show run or any other commands.???

  45. jijo
    November 11th, 2010

    to find the standby track???

  46. kanrashi
    November 13th, 2010

    hello guys…
    i just passed switching yesterday …and i really want to passed this tshoot with understanding..but i don’t where to start…so please anyone …can help me in this…or anyone can have gns3 topology to practice or anything…please …it will be great for me…as i can go back to us and apply for ccnp level job…please…….thank you..and congrates to those who passed..and best of luck to all preparing for it…….

  47. Richy
    November 13th, 2010

    @Nick

    heya CCIE written does not count as anything, I found out the hard way, I had a requirement for a job opportunity to get CCNA voice and did not want to do CCNA first as I did that a few years back and let it expire like my CCNP, so I passed CCIE written than wanted to double check, check with test center they did not know, pearson vue did not know, Cisco did not know so had to open a tac case ……….. and after 3 days they phoned me back stating its not a valid prerequisite since its only half an exam actually

    so sorry to bring bad news, my advise use the CCNA site from TuT and blaze trough it, it does give a nice feeling afterall to have the recertification done again ! i smiled all day when i got mine in the mail again :)

    gl !

  48. marxs
    November 25th, 2010

    Guys,

    Something is not ok with this ticket.

    DSW1 will never be active in either situations (track 1 nor track10).Metric threshold will be down as long as we don’t have an exact match with the route from routing table (error: “no route” in the sh track 10 command).After a match is met you can divide the route metric by 2560 to find out if will stay up or not.

    R4 will advertise Lo add as 10.2.21.128/32 or 10.2.21.0/24 and here is no match for any of those 2 track routes.

    @Joe – How your output say that track 10 is up for that route?

  49. hekmo
    November 25th, 2010

    i need some one to tell me if a need to configure any device or only choose please

  50. matrix
    November 26th, 2010

    @ all

    1st initially DSW1 is active as it has priority of 200. I think here DSW2’s priority is set at more than 141 but less than 200, because if the track object is below threshold level it will decrease DSW1’s priority to 140 making DSW2 become active.

    Now that track object 10 is having upper threshold metric of 63 means, if the route to R4 (ip route 10.2.21.128 255.255.255.0) is having metric of 63 (63 * 2560 = 161280 EIGRP metric value). If that metric value is equal or below 63, DSW1 need to be active.

    Now suppose this link’s bandwidth is decreased or delay between the link is increased in a such way that its metric will increase more than 64 (64 * 2560 = 163840), that means track object 10 is down. So DSW1’s priority must be decreased by 60 making DSW2 active.

    This is what I understand. Please correct me if I wrong. All persons who took exam, can u confirm all those values correctly?
    Thanks.

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