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The possibility to use multiple peer-unit on Logical-Tunnel Interfade

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  • 1.  The possibility to use multiple peer-unit on Logical-Tunnel Interfade

    Posted 03-02-2016 17:22

    Hello  I have just been investigating the possibility to use multiple peer-unit on Logical-system

    I mean that I want to do the following topology and feature, actually is that possible?

     

    R1 -----------------R2

     |             VRRP             |

     |--------------------|

                        |

                       R3

     

    set logical-systems R1 interfaces lt-0/1/0 unit 1 encapsulation ethernet
    set logical-systems R1 interfaces lt-0/1/0 unit 1 peer-unit 3
    set logical-systems R1 interfaces lt-0/1/0 unit 1 family inet address 10.0.10.1/24 vrrp-group 1 virtual-address 10.0.10.254
    set logical-systems R1 interfaces lt-0/1/0 unit 1 family inet address 10.0.10.1/24 vrrp-group 1 priority 105
    set logical-systems R2 interfaces lt-0/1/0 unit 2 peer-unit 3

    set logical-systems R2 interfaces lt-0/1/0 unit 2 family inet address 10.0.10.2/24 vrrp-group 1 virtual-address 10.0.10.254
    set logical-systems R2 interfaces lt-0/1/0 unit 2 family inet address 10.0.10.2/24 vrrp-group 1 priority 95

     

    set logical-systems R3 interfaces lt-0/1/0 unit 3 ?? *investigating

     

    Before using this feature, I know it is possible if I use logical-system and physical interface with vlan-tagging connected to other L2 switch. but I really want to use within Logical Tunnel Inteface (no cadbling).

     

    Now I am using the following H/W and S/W

    Juniper M10 with Tunnel Service PIC

    JUNOS-Ver.10.4R1.9

     

    I appreciate any feedback on this tips. thank you vey much.

     

    Masanobu Hiyoshi

     

     

     

     

     


    #vrrp
    #logical-system
    #LogicalTunnel


  • 2.  RE: The possibility to use multiple peer-unit on Logical-Tunnel Interfade
    Best Answer

    Posted 03-02-2016 23:18

    Hi,

     

    lt-interfaces are point-to-point interface not multipoint, so you can only setup a full mesh of p2p connections between the three logical routers. Having set this, you might achieve your goals by using bridge domains, e.g.

     

     

    [edit logical-systems R1]
    set interfaces lt-0/1/0 unit 12 description "to R2"
    set interfaces lt-0/1/0 unit 12 encapsulation vlan-bridge
    set interfaces lt-0/1/0 unit 12 peer-unit 21
    set interfaces lt-0/1/0 unit 13 description "to R3"
    set interfaces lt-0/1/0 unit 13 encapsulation vlan-bridge
    set interfaces lt-0/1/0 unit 13 peer-unit 31
    set bridge-domains SW1 domain-type bridge
    set bridge-domains SW1 vlan-id 1
    set bridge-domains SW1 interface lt-0/1/0.12
    set bridge-domains SW1 interface lt-0/1/0.13
    set bridge-domains SW1 routing-interface irb.1
    set interfaces irb unit 1 family inet 10.0.10.1/24 vrrp-group 1 ...

    Unfortunately this approach only works on Juniper MX-Series routers but not on M-Series as M-series does not support bridge-domains.

     

    Cheers,

    Carsten

     



  • 3.  RE: The possibility to use multiple peer-unit on Logical-Tunnel Interfade

    Posted 03-02-2016 23:31
    Thank you for your precious info!, it is very good reference for me.