family (Protocols BGP)
Syntax
family {
(inet | inet6 | inet-vpn | inet6-vpn | iso-vpn) {
(any | flow | labeled-unicast | multicast | unicast | segment-routing-te) {
accepted-prefix-limit {
maximum number;
teardown <percentage-threshold> idle-timeout (forever | minutes);
drop-excess <percentage>;
hide-excess <percentage>;
}
add-path {
receive;
send {
include-backup-path backup_path_number;
multipath;
path-count number;
path-selection-mode { (all-paths | equal-cost-paths); }
prefix-policy [ policy-names ];
}
}
aigp [disable];
loops number;
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
protection;
rib-group group-name;
topology name {
community { target identifier; }
}
flow {
no-install;
no-validate policy-name;
}
labeled-unicast {
accepted-prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
aggregate-label { community community-name: }
explicit-null { connected-only; }
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
resolve-vpn;
rib (inet.3 | inet6.3);
rib-group group-name;
traffic-statistics {
file filename <world-readable | no-world-readable>;
interval seconds;
}
}
}
route-target {
accepted-prefix-limit {
maximum number;
proxy-generate <route-target-policy route-target-policy-name>;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
advertise-default;
external-paths number;
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
}
(evpn | inet-mdt | inet-mvpn | inet6-mvpn | l2vpn) {
signaling {
accepted-prefix-limit {
maximum number;
teardown <percentage-threshold> idle-timeout (forever | minutes);
drop-excess <percentage>;
hide-excess <percentage>;
}
add-path {
receive;
send {
include-backup-path backup_path_number;
multipath;
path-count number;
path-selection-mode { (all-paths | equal-cost-paths); }
prefix-policy [ policy-names ];
}
}
aigp [disable];
damping;
loops number;
prefix-limit {
maximum number;
teardown <percentage> <idle-timeout (forever | minutes)>;
drop-excess <percentage>;
hide-excess <percentage>;
}
rib-group group-name;
}
}
traffic-engineering;
}
}
Hierarchy Level
[edit logical-systems logical-system-name protocols bgp], [edit logical-systems logical-system-name protocols bgp group group-name], [edit logical-systems logical-system-name protocols bgp group group-name neighbor address], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp group group-name], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp group group-name neighbor address], [edit protocols bgp], [edit protocols bgp group group-name], [edit protocols bgp family prefix-limit (inet | inet6)(any | flow | labeled-unicast | multicast | unicast)], [edit protocols bgp group group-name neighbor address], [edit routing-instances routing-instance-name protocols bgp], [edit routing-instances routing-instance-name protocols bgp group group-name], [edit routing-instances routing-instance-name protocols bgp group group-name neighbor address]
Description
Enable multiprotocol BGP (MP-BGP) by configuring BGP to carry network layer reachability information (NLRI) for address families other than unicast IPv4, to specify MP-BGP to carry NLRI for the IPv6 address family, or to carry NLRI for VPNs.
Options
any—Configure the family type to be both unicast and multicast.
evpn—Configure NLRI parameters for Ethernet VPNs (EVPNs).
inet—Configure NLRI parameters for IPv4.
inet6—Configure NLRI parameters for IPv6.
inet-mdt—Configure NLRI parameters for the multicast distribution tree (MDT) subaddress family identifier (SAFI) for IPv4 traffic in Layer 3 VPNs.
inet-mvpn—Configure NLRI parameters for IPv4 for multicast VPNs.
inet6-mvpn—Configure NLRI parameters for IPv6 for multicast VPNs.
inet-vpn—Configure NLRI parameters for IPv4 for Layer 3 VPNs.
inet6-vpn—Configure NLRI parameters for IPv6 for Layer 3 VPNs.
inet6-vpn—Configure NLRI parameters for IPv6 for Layer 3 VPNs.
iso-vpn—Configure NLRI parameters for IS-IS for Layer 3 VPNs.
l2vpn—Configure NLRI parameters for IPv4 for MPLS-based Layer 2 VPNs and VPLS.
labeled-unicast—Configure the family type to be labeled-unicast. This means that the BGP peers are being used only to carry the unicast routes that are being used by labeled-unicast for resolving the labeled-unicast routes. This statement is supported only with inet and inet6.
multicast—Configure the family type to be multicast. This means that the BGP peers are being used only to carry the unicast routes that are being used by multicast for resolving the multicast routes.
unicast—Configure the family type to be unicast. This means that the BGP peers only carry the unicast routes that are being used for unicast forwarding purposes. The default family type is unicast.
segment-routing-te—Configure the family type to be segment routing traffic engineering. This means that BGP peers only carry segment routing policies for traffic steering.
If you enable family inet-vpn unicast for external BGP peer, Junos considers the node is positioned as an AS boundary router in an inter-provider scenario. Hence, it keeps the VPN-IPv4 routes in the routing information base (bgp.l3vpn.0), and the labels associated with the prefixes in the forwarding information base (FIB).
The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced before Junos OS Release 7.4.
inet-mvpn and inet6-mpvn statements introduced in Junos OS Release 8.4.
inet-mdt statement introduced in Junos OS Release 9.4.
Support for the loops statement introduced in Junos OS Release 9.6.
evpn statement introduced in Junos OS Release 13.2.
traffic-engineering statement introduced in Junos OS Release 14.2.
segment-routing-te option introduced in Junos OS Release 17.4R1 for QFX Series, MX Series, and PTX Series with FPC-PTX-P1-A.