[c-nsp] Cisco 10K MPLS VPN

[FAHAD ALI KHAN]

Here is the working configuration & when i disable LDP from Juniper core
interfaces (fe-0/0/0 & fe-0/0/1)...MPLS VPNs sites get disconnected....

C10K#sh run
ip vrf vpn1
 description Test VPN 1
 rd 1241:100
 route-target export 1241:100
 route-target import 1241:100
!
mpls traffic-eng tunnels
mpls ldp neighbor 192.168.88.254 password test
mpls ldp neighbor 192.168.88.254 targeted ldp
mpls ldp loop-detection
no mpls ip propagate-ttl
mpls label protocol ldp
interface Tunnel2
 description *** C10008-PE to C7206VXR-PE ***
 no ip address
 mpls ip
 tunnel source Loopback0
 tunnel destination 192.168.88.254
 tunnel mode mpls traffic-eng
 tunnel mpls traffic-eng path-option 1 explicit name 10k-J4300-7206vxr
 ip rsvp bandwidth
interface Loopback0
 description *** Loopback ***
 ip address 192.168.97.254 255.255.255.255
 ip rsvp bandwidth
interface ATM1/0/0
 no ip address
interface ATM1/0/0.5 point-to-point
 description *** ATM-2-ATM L2 ATOM 10K-7206 ***
 ip vrf forwarding vpn1
 ip address 192.168.10.11 255.255.255.248
 pvc 3/32
  protocol ip 192.168.10.9
  ubr 256
 !
interface GigabitEthernet3/0/0
 mtu 1550
!
interface GigabitEthernet3/0/0.7
 description *** Connected to J4300A ***
 encapsulation dot1Q 296
 ip address 192.168.0.21 255.255.255.252
 ip mtu 1532
 mpls mtu 1520
 mpls traffic-eng tunnels
 mpls ip
 ip rsvp bandwidth
!
OSPF & BGP configuration ommited....
!
ip explicit-path name 10k-3845-7206vxr enable
 next-address 192.168.0.22
 next-address 192.168.0.18
 next-address 192.168.88.254

mpls ldp router-id Loopback0 force
==================================================
7206VXR-DSL#sh run
ip vrf vpn1
 rd 1241:100
 route-target export 1241:100
 route-target import 1241:100
!
mpls traffic-eng tunnels
mpls ldp neighbor 192.168.97.254 password test
mpls ldp neighbor 192.168.97.254 targeted ldp
mpls ldp loop-detection
no mpls ip propagate-ttl
mpls label protocol ldp
interface Tunnel1
 description C7206VXR-PE to C10008-PE
 ip unnumbered Loopback0
 mpls traffic-eng tunnels
 mpls ip
 tunnel source Loopback0
 tunnel destination 192.168.97.254
 tunnel mode mpls traffic-eng
 tunnel mpls traffic-eng path-option 1 explicit name 7206-3845-10k
 ip rsvp bandwidth
!
interface Loopback0
 description *** Loopback ***
 ip address 192.168.88.254 255.255.255.255
!
interface GigabitEthernet0/3
 description *** Connected to J4300 ***
 mtu 1546
 ip address 192.168.0.18 255.255.255.252
 ip mtu 1532
 mpls mtu 1520
 mpls traffic-eng tunnels
 mpls ip
 ip rsvp bandwidth
!
interface ATM1/0
 no ip address
interface ATM1/0.4 point-to-point
 description *** Layer 2 connection 7206-10k ***
 mtu 1500
 ip vrf forwarding vpn1
 ip address 192.168.10.2 255.255.255.248
 pvc 3/100
  protocol ip 192.168.10.1
  ubr 256
 !
OSPF & BGP configuration ommited
!
ip explicit-path name 7206-3845-10k enable
 next-address 192.168.0.17
 next-address 192.168.0.21
 next-address 192.168.97.254
mpls ldp router-id Loopback0 force
===================================================
interfaces {
    fe-0/0/0 {
        description "*** COnnected to 10K ***";
        mtu 1546;
        unit 0 {
            family inet {
                address 192.168.0.22/30;
            }
            family mpls;
        }
    }
    fe-0/0/1 {
        description "*** Connected to 7206 ***";
        mtu 1546;
        unit 0 {
            family inet {
                address 192.168.0.17/30;
            }
            family mpls;
        }
    }
    lo0 {
        unit 0 {
            family inet {
                address 192.168.120.254/32;
            }
        }
    }
}
routing-options {
    router-id 192.168.120.254;
    autonomous-system 1241;
}
protocols {
    rsvp {
        interface fe-0/0/0.0 {
            hello-interval 0;
        }
        interface fe-0/0/1.0 {
            hello-interval 0;
        }
    }
    mpls {
        no-propagate-ttl;
        explicit-null;
        interface fe-0/0/0.0;
        interface fe-0/0/1.0;
    }
    bgp {
        group Internal {
            type internal;
            local-address 192.168.120.254;
            authentication-key "$9$YkoaUfTTRSlMN-k.mPF/"; ## SECRET-DATA
            local-as 1241;
            neighbor 192.168.97.254;
            neighbor 192.168.88.254;
        }
    }
    ospf {
        traffic-engineering;
        area 0.0.0.0 {
            interface fe-0/0/0.0;
            interface fe-0/0/1.0;
            interface lo0.0 {
                passive;
            }
        }
    }
    ldp {
        strict-targeted-hellos;
        explicit-null;
        transport-address router-id;
        interface all;
    }
}