[dev] evpn commands under --enable-cumulus

[Donald Sharp]

As discussed in today's technical meeting:

address-family l2vpn evpn                              (BGP_EVPN_NODE)
    [no] advertise-default-gw
    [no] advertise-all-vni
    [no] autort rfc8365-compatible
    [no] default-originate <ipv4|ipv6>
    [no] advertise AFI SAFI [route-map WORD]
    [no] rd ASN:NN_OR_IP-ADDRESS:NN
    [no] route-target <both|import|export> RT
    advertise es ESI
    withdraw es ESI
    [no] vni (1-1677721)                           (BGP_EVPN_VNI_NODE)
        [no] advertise-default-gw
        [no] advertise-subnet (This is hidden)
        [no] rd ASN:NN_OR_IP-ADDRESS:NN
        [no] route-target <both|import|export> RT
        exit-vni


show bgp l2vpn evpn vni [(1-16777215)] [json]
show bgp l2vpn evpn es [ESI] [json]
show bgp [vrf VRFNAME] l2vpn evpn summary [json]
show bgp l2vpn evpn route [type <macip|multicast|es|prefix>] [json]
show bgp l2vpn evpn route rd ASN:NN_OR_IP-ADDRESS:NN [type
<macip|multicast|es|prefix>] [json]
show bgp l2vpn evpn route rd ASN:NN_OR_IP-ADDRESS:NN mac WORD [ip WORD] [json]
show bgp l2vpn evpn route esi ESI [json]
show bgp l2vpn evpn route vni (1-16777215) [<type <macip|multicast> |
vtep A.B.C.D>] [json]
show bgp l2vpn evpn route vni (1-16777215) mac WORD [ip WORD] [json]
show bgp l2vpn evpn route vni (1-16777215) multicast A.B.C.D [json]
show bgp l2vpn evpn route vni all [vtep A.B.C.D] [json]
show bgp l2vpn evpn vrf-import-rt [json]
show bgp l2vpn evpn import-rt [json]
show bgp vrf VRFNAME vni [json]


Hidden Show commands( To provide backwards compatability for anyone
who may have used these )

show bgp evpn vni [(1-16777215)]
show bgp evpn summary [json]
show bgp evpn route [type <macip|multicast>]
show bgp evpn route rd ASN:NN_OR_IP-ADDRESS:NN [type <macip|multicast>]
show bgp evpn route rd ASN:NN_OR_IP-ADDRESS:NN mac WORD [ip WORD]
show bgp evpn route vni (1-16777215) [<type <macip|multicast> | vtep A.B.C.D>]
show bgp evpn route vni (1-16777215) mac WORD [ip WORD]
show bgp evpn route vni (1-16777215) multicast A.B.C.D
show bgp evpn route vni all [vtep A.B.C.D]
show bgp evpn import-rt