This is the complete configuration used in Link-protection and node-link-protection on Juniper MX and several other articles. The routers in the topology drawing are all logical systems.
The routers are running IS-IS. All interfaces are MPLS and RSVP-enabled. Under the RSVP configuration, there are also the ‘aggregate’ and the ‘reliable’ statement. These were not discussed and they are not necessary for link-protection or node-link-protection. These two statements simply reduce RSVP refresh and enable reliable delivery.
There is also an L2circuit defined (and working) between Commodus and Tiberius.
play@MX480-TEST> show configuration logical-systems
Augustus {
interfaces {
xe-0/2/0 {
unit 15 {
description Caligula;
vlan-id 15;
family inet {
mtu 1500;
address 2.0.0.58/30;
}
family iso;
family mpls;
}
}
xe-0/3/0 {
unit 12 {
description Nero;
vlan-id 12;
family inet {
mtu 1500;
address 2.0.0.45/30;
}
family iso;
family mpls;
}
unit 13 {
description Romulus;
vlan-id 13;
family inet {
mtu 1500;
address 2.0.0.49/30;
}
family iso;
family mpls;
}
}
lo0 {
unit 7 {
family inet {
address 1.1.1.7/32;
}
family iso {
address 49.0010.0010.0100.1007.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/3/0.13 {
authentication-key "$9$GzjmTzF/0BEHqT39tIR8X7-Yof5F9CuZU/tp0cS";
aggregate;
reliable;
link-protection;
}
interface xe-0/2/0.15 {
authentication-key "$9$ZhD.5Qz6uORik5F/A1IWLxNs4Pfz/9pJG6Atuhc";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.12 {
authentication-key "$9$H.Qn/9pRhrP5nCuBSyNdbsaUF39u0IikpB1ReK";
aggregate;
reliable;
link-protection;
}
}
mpls {
interface xe-0/2/0.15;
interface xe-0/3/0.12;
interface xe-0/3/0.13;
}
isis {
traffic-engineering {
family inet {
shortcuts;
}
}
level 2 {
authentication-key "$9$0Uz1OESrlMXNbKMDkqmF3";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.15 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.12 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.13 {
point-to-point;
level 1 disable;
}
interface lo0.7 {
level 1 disable;
}
}
}
}
Caligula {
interfaces {
xe-0/2/0 {
unit 5 {
description Septimus;
vlan-id 5;
family inet {
mtu 1500;
address 2.0.0.18/30;
}
family iso;
family mpls;
}
}
xe-0/3/0 {
unit 14 {
description Commodus;
vlan-id 14;
family inet {
mtu 1500;
address 2.0.0.53/30;
}
family iso;
family mpls;
}
unit 15 {
description Augustus;
vlan-id 15;
family inet {
mtu 1500;
address 2.0.0.57/30;
}
family iso;
family mpls;
}
}
lo0 {
unit 8 {
family inet {
address 1.1.1.8/32;
}
family iso {
address 49.0010.0010.0100.1008.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/2/0.5 {
authentication-key "$9$j5k5Fn6A1RS.PF/t0hcxNdb4ZQz6tpBDiA0O1rl";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.14 {
authentication-key "$9$Yy4UHq.569paZHmTFAtylKM7Vji.TQns25F360O";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.15 {
authentication-key "$9$Ox4EIyKMWxwYoEcK87dg4.P5Q/tleW7Nb0BxdVwJZ";
aggregate;
reliable;
link-protection;
}
}
mpls {
interface xe-0/2/0.5;
interface xe-0/3/0.14;
interface xe-0/3/0.15;
}
isis {
traffic-engineering {
family inet {
shortcuts;
}
}
level 2 {
authentication-key "$9$0Uz1OESrlMXNbKMDkqmF3";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.5 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.14 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.15 {
point-to-point;
level 1 disable;
}
interface lo0.8 {
level 1 disable;
}
}
}
}
Commodus {
interfaces {
xe-0/2/0 {
unit 14 {
description Caligula;
vlan-id 14;
family inet {
mtu 1500;
address 2.0.0.54/30;
}
family iso;
family mpls;
}
}
xe-0/3/0 {
unit 6 {
description Septimus;
vlan-id 6;
family inet {
mtu 1500;
address 2.0.0.21/30;
}
family iso;
family mpls;
}
unit 3556 {
description Mars;
encapsulation vlan-ccc;
vlan-id 3556;
}
}
lo0 {
unit 4 {
family inet {
address 1.1.1.4/32 {
preferred;
}
}
family iso {
address 49.0010.0010.0100.1004.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/2/0.14 {
authentication-key "$9$vdz8-wY2aikPX7wgJU.mCtuOhrVb2JZjKMaUDi5T";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.6 {
authentication-key "$9$1R/ElM8LNYgJcyMX-boaP5QFCuKvL-dsBINbwYGU";
aggregate;
reliable;
link-protection;
}
}
mpls {
revert-timer 120;
label-switched-path to_Tiberius {
to 1.1.1.9;
ldp-tunneling;
node-link-protection;
primary via_Caligula;
secondary via_Septimus {
standby;
}
}
path via_Caligula {
1.1.1.8 strict;
}
path via_Septimus {
1.1.1.12 strict;
}
interface xe-0/2/0.14;
interface xe-0/3/0.6;
}
isis {
level 2 {
authentication-key "$9$0Uz1OESrlMXNbKMDkqmF3";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.14 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.6 {
point-to-point;
level 1 disable;
}
interface lo0.4 {
level 1 disable;
}
}
ldp {
interface lo0.4;
session 1.1.1.9 {
authentication-key "$9$87Z7dsiHmznCikfz36u0LxN-Yo";
}
}
l2circuit {
neighbor 1.1.1.9 {
interface xe-0/3/0.3556 {
virtual-circuit-id 3556;
}
}
}
}
}
Hadrian {
interfaces {
xe-0/3/0 {
unit 9 {
description Tiberius;
vlan-id 9;
family inet {
mtu 1500;
address 2.0.0.33/30;
}
family iso;
family mpls;
}
unit 10 {
description Romulus;
vlan-id 10;
family inet {
mtu 1500;
address 2.0.0.37/30;
}
family iso;
family mpls;
}
unit 11 {
description Nero;
vlan-id 11;
family inet {
mtu 1500;
address 2.0.0.41/30;
}
family iso;
family mpls;
}
}
lo0 {
unit 10 {
family inet {
address 1.1.1.10/32;
}
family iso {
address 49.0010.0010.0100.1010.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/3/0.9 {
authentication-key "$9$XXENs4aJDmfzdb4ZjkTQ0BIElM2gJji.LxDkqm3n";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.10 {
authentication-key "$9$oWZHmf5FApBUjmT3/0OKM8XVYq.53nC4aF/9AIR";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.11 {
authentication-key "$9$9EGht1hSyKxNbuOhrv8dVUjHqT3REyvMX/CK8LxsY";
aggregate;
reliable;
link-protection;
}
}
mpls {
interface xe-0/3/0.9;
interface xe-0/3/0.10;
interface xe-0/3/0.11;
}
isis {
traffic-engineering {
family inet {
shortcuts;
}
}
level 2 {
authentication-key "$9$jGim5Qz6Au136MXxNY2";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/3/0.9 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.10 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.11 {
point-to-point;
level 1 disable;
}
interface lo0.10 {
level 1 disable;
}
}
}
}
Nero {
interfaces {
xe-0/2/0 {
unit 11 {
description Hadrian;
vlan-id 11;
family inet {
mtu 1500;
address 2.0.0.42/30;
}
family iso;
family mpls;
}
unit 12 {
description Augustus;
vlan-id 12;
family inet {
mtu 1500;
address 2.0.0.46/30;
}
family iso;
family mpls;
}
}
xe-0/3/0 {
unit 17 {
description Septimus;
vlan-id 17;
family inet {
mtu 1500;
address 2.0.0.65/30;
}
family iso;
family mpls;
}
}
lo0 {
unit 11 {
family inet {
address 1.1.1.11/32;
}
family iso {
address 49.0010.0010.0100.1011.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/2/0.11 {
authentication-key "$9$/oB-ABEcSeX7Vp0EyKW-dGDik5FIRSKvL69eW8Xws";
aggregate;
reliable;
link-protection;
}
interface xe-0/2/0.12 {
authentication-key "$9$V/saUji.z3924UHm56/Ecyl87ZGimPQdb.5TzAt";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.17 {
authentication-key "$9$ZfD.5Qz6uORik5F/A1IWLxNs4Pfz/9pJG6Atuhc";
aggregate;
reliable;
link-protection;
}
}
mpls {
interface xe-0/2/0.11;
interface xe-0/2/0.12;
interface xe-0/3/0.17;
}
isis {
traffic-engineering {
family inet {
shortcuts;
}
}
level 2 {
authentication-key "$9$IeARyevMX-b28XkPfT/9";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.11 {
point-to-point;
level 1 disable;
}
interface xe-0/2/0.12 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.17 {
point-to-point;
level 1 disable;
}
interface lo0.11 {
level 1 disable;
}
}
}
}
Romulus {
interfaces {
xe-0/2/0 {
unit 10 {
description Hadrian;
vlan-id 10;
family inet {
mtu 1500;
address 2.0.0.38/30;
}
family iso;
family mpls;
}
unit 13 {
description Augustus;
vlan-id 13;
family inet {
mtu 1500;
address 2.0.0.50/30;
}
family iso;
family mpls;
}
}
xe-0/3/0 {
unit 3 {
description Tiberius;
vlan-id 3;
family inet {
mtu 1500;
address 2.0.0.9/30;
}
family iso;
family mpls;
}
}
lo0 {
unit 6 {
family inet {
address 1.1.1.6/32;
}
family iso {
address 49.0010.0010.0100.1006.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/2/0.13 {
authentication-key "$9$Xm/Ns4aJDmfzdb4ZjkTQ0BIElM2gJji.LxDkqm3n";
aggregate;
reliable;
link-protection;
}
interface xe-0/2/0.10 {
authentication-key "$9$1R/ElM8LNYgJcyMX-boaP5QFCuKvL-dsBINbwYGU";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.3 {
authentication-key "$9$1R/ElM8LNYgJcyMX-boaP5QFCuKvL-dsBINbwYGU";
aggregate;
reliable;
link-protection;
}
}
mpls {
interface xe-0/2/0.10;
interface xe-0/2/0.13;
interface xe-0/3/0.3;
}
isis {
traffic-engineering {
family inet {
shortcuts;
}
}
level 2 {
authentication-key "$9$VIbgaZGi.fzDiOREcvM";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.10 {
point-to-point;
level 1 disable;
}
interface xe-0/2/0.13 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.3 {
point-to-point;
level 1 disable;
}
interface lo0.6 {
level 1 disable;
}
}
}
}
Septimus {
interfaces {
xe-0/2/0 {
unit 6 {
description Commodus;
vlan-id 6;
family inet {
mtu 1500;
address 2.0.0.22/30;
}
family iso;
family mpls;
}
unit 17 {
description Nero;
vlan-id 17;
family inet {
mtu 1500;
address 2.0.0.66/30;
}
family iso;
family mpls;
}
}
xe-0/3/0 {
unit 5 {
description Caligula;
vlan-id 5;
family inet {
mtu 1500;
address 2.0.0.17/30;
}
family iso;
family mpls;
}
}
lo0 {
unit 12 {
family inet {
address 1.1.1.12/32;
}
family iso {
address 49.0010.0010.0100.1012.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/2/0.17 {
authentication-key "$9$Qg303A0B1hKMX690Icr8LgoJGkPpu1cSeTzhrlK7N";
aggregate;
reliable;
link-protection;
}
interface xe-0/3/0.5 {
authentication-key "$9$Ah-auRSrlMNdsO1SeWXbwjHqmz6hclW87CtMXxN2g";
aggregate;
reliable;
link-protection;
}
interface xe-0/2/0.6 {
authentication-key "$9$1R/ElM8LNYgJcyMX-boaP5QFCuKvL-dsBINbwYGU";
aggregate;
reliable;
link-protection;
}
}
mpls {
interface xe-0/2/0.17;
interface xe-0/3/0.5;
interface xe-0/2/0.6;
}
isis {
traffic-engineering {
family inet {
shortcuts;
}
}
level 2 {
authentication-key "$9$0Uz1OESrlMXNbKMDkqmF3";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.6 {
point-to-point;
level 1 disable;
}
interface xe-0/2/0.17 {
point-to-point;
level 1 disable;
}
interface xe-0/3/0.5 {
point-to-point;
level 1 disable;
}
interface lo0.12 {
level 1 disable;
}
}
}
}
Tiberius {
interfaces {
xe-0/2/0 {
unit 3 {
description Romulus;
vlan-id 3;
family inet {
mtu 1500;
address 2.0.0.10/30;
}
family iso;
family mpls;
}
unit 9 {
description Hadrian;
vlan-id 9;
family inet {
mtu 1500;
address 2.0.0.34/30;
}
family iso;
family mpls;
}
unit 3556 {
description Sol;
encapsulation vlan-ccc;
vlan-id 3556;
}
}
lo0 {
unit 9 {
family inet {
address 1.1.1.9/32 {
preferred;
}
}
family iso {
address 49.0010.0010.0100.1009.00;
}
}
}
}
protocols {
rsvp {
interface xe-0/2/0.9 {
authentication-key "$9$Md1Lds2gJHqfxNs4ZDmPAp0BclbwgZGivWJDjHTQ";
aggregate;
reliable;
link-protection;
}
interface xe-0/2/0.3 {
authentication-key "$9$1R/ElM8LNYgJcyMX-boaP5QFCuKvL-dsBINbwYGU";
aggregate;
reliable;
link-protection;
}
}
mpls {
revert-timer 0;
label-switched-path to_Commodus {
to 1.1.1.4;
ldp-tunneling;
link-protection;
primary via_Hadrian;
secondary via_Romulus {
standby;
}
}
path via_Romulus {
1.1.1.6 strict;
}
path via_Hadrian {
1.1.1.10 strict;
}
interface xe-0/2/0.9;
interface xe-0/2/0.3;
}
isis {
level 2 {
authentication-key "$9$0Uz1OESrlMXNbKMDkqmF3";
authentication-type md5;
wide-metrics-only;
}
interface xe-0/2/0.3 {
point-to-point;
level 1 disable;
}
interface xe-0/2/0.9 {
point-to-point;
level 1 disable;
}
interface lo0.9 {
level 1 disable;
}
}
ldp {
interface lo0.9;
session 1.1.1.4 {
authentication-key "$9$RKySlMsYoDHms2JDikTQEcyrWx";
}
}
l2circuit {
neighbor 1.1.1.4 {
interface xe-0/2/0.3556 {
virtual-circuit-id 3556;
}
}
}
}
}