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George_33482's avatar
George_33482
Icon for Nimbostratus rankNimbostratus
Mar 27, 2012

LC load balancing three links through a router

Hello,

 

 

I have a requirement to configure LC in order to load balance three ISPs through a router.

 

 

LAN -> LC -> Router -> 3 Internet ISP links.

 

 

I cannot change the customer's topology LAN- >Router->3 Internet ISP links.(because the topology is much more complicated).

 

 

Any idea how to do this???

 

 

I configured LCs in which the Links are directly connected or there is one link on each router.

 

 

Thank you in advance for your support.

 

 

Regards,

 

George

 

 

config
design
  • George_33482's avatar
    George_33482
    Icon for Nimbostratus rankNimbostratus
    Mar 28, 2012
    i cannot do this, the links are actually WAN links and they are connected to the Router through a serial cable and not ethernet, as i said the topology much more complicated.

     

     

    Any ideas on how to make the setup/design work:: LAN -> LC -> Router -> 3 links ???

     

     

    Regards,

     

    George
  • Cholito_15468's avatar
    Cholito_15468
    Icon for Nimbostratus rankNimbostratus
    Mar 28, 2012
    first,

     

    I recommend is that you have 3 routers, there is no logic to have 3 links in a router.

     

     

    But can you do the following.

     

     

    configure a trunk link between the router and LC.

     

    there you will have 3 links.

     

    You know very well the networking so you wont have problems.

     

     

    http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_1/tmos_trunks.html

     

     

  • Cholito_15468's avatar
    Cholito_15468
    Icon for Nimbostratus rankNimbostratus
    Mar 28, 2012
    first,

     

    I recommend is that you have 3 routers, there is no logic to have 3 links in a router.

     

     

    But can you do the following.

     

     

    configure a trunk link between the router and LC.

     

    there you will have 3 links.

     

    You know very well the networking so you wont have problems.

     

     

    http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_1/tmos_trunks.html

     

     

  • Cholito_15468's avatar
    Cholito_15468
    Icon for Nimbostratus rankNimbostratus
    Mar 28, 2012
    first,

     

    I recommend is that you have 3 routers, there is no logic to have 3 links in a router.

     

     

    But can you do the following.

     

     

    configure a trunk link between the router and LC.

     

    there you will have 3 links.

     

    You know very well the networking so you wont have problems.

     

     

    http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_1/tmos_trunks.html

     

     

  • Cholito_15468's avatar
    Cholito_15468
    Icon for Nimbostratus rankNimbostratus
    Mar 29, 2012
    hi george, you can configured bridge interface

     

     

    http://www.cisco.com/en/US/tech/tk331/tk660/technologies_tech_note09186a0080094471.shtml

     

    http://www.cisco.com/en/US/docs/ios/12_1t/12_1t3/feature/guide/dtbridge.html

     

     

    you have LAN => LC =dot1q=> ROUTER => ISP