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  • 1.  EVPN

    Posted 04-04-2022 05:44

    I've tried on the labs to configure evpn with these configuration and topology (on the attachment). 

    jcluser@vMX1# run show bgp summary
    hreading mode: BGP I/O
    Default eBGP mode: advertise - accept, receive - accept
    Groups: 1 Peers: 2 Down peers: 0
    Table Tot Paths Act Paths Suppressed History Damp State Pending
    0 0 0 0 0 0
    0 0 0 0 0 0
    2 2 0 0 0 0
    Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped... 64500 163 160 0 1 1:07:06 Establ
    inet.0: 0/0/0/0
    bgp.l3vpn.0: 0/0/0/0
    bgp.evpn.0: 2/2/2/0
    evpna.evpn.0: 2/2/2/0
    __default_evpn__.evpn.0: 0/0/0/0 64500 153 154 0 0 1:08:33 Establ
    inet.0: 0/0/0/0

    jcluser@vMX1# run show evpn instance evpna extensive
    Instance: evpna
    Route Distinguisher: 64500:1
    VLAN ID: 135
    Per-instance MAC route label: 299936
    Duplicate MAC detection threshold: 5
    Duplicate MAC detection window: 180
    MAC database status Local Remote
    MAC advertisements: 0 0
    MAC+IP advertisements: 0 0
    Default gateway MAC advertisements: 0 0
    Number of local interfaces: 2 (2 up)
    Interface name ESI Mode Status AC-Role
    .local..8 00:00:00:00:00:00:00:00:00:00 single-homed Up Root
    ge-0/0/2.135 00:00:00:00:00:00:00:00:00:00 single-homed Up Root
    Number of IRB interfaces: 0 (0 up)
    Number of protect interfaces: 0
    Number of bridge domains: 1
    VLAN Domain-ID Intfs/up IRB-intf Mode MAC-sync IM-label MAC-label v4-SG-sync IM-core-NH v6-SG-sync IM-core-NH Trans
    135 1 1 Extended Enabled 299968 Disabled Disabled
    Number of neighbors: 1
    Address MAC MAC+IP AD IM ES Leaf-label Remote-DCI-Peer 0 0 0 1 0
    Number of ethernet segments: 0
    SMET Forwarding: Disabled

    jcluser@vMX1# run show route table evpna.evpn.0

    evpna.evpn.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden)
    + = Active Route, - = Last Active, * = Both

    3:64500:1::135:: IM
    *[EVPN/170] 00:30:09
    3:64500:2::135:: IM
    *[BGP/170] 00:29:48, localpref 100, from
    AS path: I, validation-state: unverified
    > to via ge-0/0/0.0
    3:64500:3::135:: IM
    *[BGP/170] 00:46:58, localpref 100, from
    AS path: I, validation-state: unverified
    > to via ge-0/0/1.0


    jcluser@vMX1# run show evpn database

    jcluser@vMX1# run show evpn arp-table


    jcluser@vMX4# run ping source routing-instance CE-4 rapid
    PING ( 56 data bytes
    --- ping statistics ---
    5 packets transmitted, 0 packets received, 100% packet loss

    is there any missconfig ?
    I have a lot of change configuration but it looks like doestn't work.
    would be appreciate for your help guys



    evpn config.txt   5 KB 1 version

  • 2.  RE: EVPN

    Posted 04-05-2022 18:46
    i'll try to lab this up later... i briefly looked it over.  i would expect to see lo0.0 in the LDP Protocol stanza.  also, i've implemented EVPN-MPLS between a couple DC's and used evpn route-instance instance-type virtual-switch.  i forget the difference between instance-type evpn and virtual-switch and the motivators for either.  i thought the reason i used virtual-switch was that I could get away with putting all my DC's vlans via one single EVPN.  seemed less adminstratively burdernsome IIRC.

    Aaron Gould
    Senior Network Engineer

  • 3.  RE: EVPN

    Posted 04-06-2022 12:27
    As Aaron stated, try adding the lo0.0 interface to the ldp and mpls hierarchy's.  

    @Aaron....type evpn is for vlan-based evpn and type virtual-switch is for vlan-aware evpn.  You are correct about multiple vlans in a single evpn instance using virtual-switch(aka...vlan-aware).​