[j-nsp] Hidden L3VPN Routes

Harshit Kumar harshit at juniper.net
Wed Jun 8 15:22:38 EDT 2005


I think you are missing an LSP (LDP or RSVP signaled)
 to the remote PE, if I understand it correctly.

Harshit


> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Chris Staudt
> Sent: Wednesday, June 08, 2005 9:03 AM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] Hidden L3VPN Routes
> 
> Hello together,
> I am facing a problem with a Juniper M40 and hope to find 
> some help here.
> In general my network consists of cisco only equipment 
> running ISIS, BGP
> and MPLS.
> I am trying to include some Juniper boxes now. It first ran 
> very good but
> now I am stuck.
> 
> I have ISIS, BGP and L3VPN running, but the M40 won't accept any VPN
> Prefixes announced to it saying:"next hop unusable" even 
> thoug the next
> hop can pefectly be reached and ist lerned via ISIS.
> For further information I am posting some show outputs below. 
> Any help is
> appreciated!
> regards
> chris
> 
> 
> -----
> chris at juni> ...ocol bgp 217.24.235.15 hidden extensive
> 
> inet.0: 162642 destinations, 162649 routes (162642 active, 0 
> holddown, 0
> hidden)
> 
> VRF_COMATEC.inet.0: 10 destinations, 10 routes (4 active, 0 
> holddown, 6
> hidden)
>   0.0.0.0/0 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 56
>      Nexthop: 217.24.235.14
>      MED: 0
>      Localpref: 100
>      AS path: I (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.14
>      Communities: target:9063:1
> 
>   150.100.0.0/16 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 198
>      Nexthop: 217.24.235.14
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.14
>      Communities: target:9063:1
> 
>   192.168.8.0/24 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 65
>      Nexthop: 217.24.235.7
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.7
>      Communities: target:9063:1
> 
>   192.168.99.0/28 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 161
>      Nexthop: 217.24.235.22
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.22
>      Communities: target:9063:1
> 
>   192.168.199.0/24 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 74
>      Nexthop: 217.24.235.22
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.22
>      Communities: target:9063:1
> 
>   192.168.199.1/32 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 155
>      Nexthop: 217.24.235.22
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.22
>      Communities: target:9063:1
> 
> iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
> 
> mpls.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
> 
> bgp.l3vpn.0: 6 destinations, 6 routes (0 active, 0 holddown, 6 hidden)
> 
>   9063:1:0.0.0.0/0 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 56
>      Nexthop: 217.24.235.14
>      MED: 0
>      Localpref: 100
>      AS path: I (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.14
>      Communities: target:9063:1
> 
>   9063:1:150.100.0.0/16 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 198
>      Nexthop: 217.24.235.14
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.14
>      Communities: target:9063:1
> 
>   9063:1:192.168.8.0/24 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 65
>      Nexthop: 217.24.235.7
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.7
>      Communities: target:9063:1
> 
>   9063:1:192.168.99.0/28 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 161
>      Nexthop: 217.24.235.22
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.22
>      Communities: target:9063:1
> 
>   9063:1:192.168.199.0/24 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 74
>      Nexthop: 217.24.235.22
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.22
>      Communities: target:9063:1
> 
>   9063:1:192.168.199.1/32 (1 entry, 0 announced)
>      Route Distinguisher: 9063:1
>      VPN Label: 155
>      Nexthop: 217.24.235.22
>      MED: 0
>      Localpref: 100
>      AS path: ? (Originator) Cluster list:  0.0.35.103
>      AS path:  Originator ID: 217.24.235.22
>      Communities: target:9063:1
> 
> __juniper_private1__.inet6.0: 1 destinations, 1 routes (1 active, 0
> holddown, 0 hidden)
> 
> chris at juni>
> 
> -----
> show route to one of the next hops that is said to be unusable:
> 
> chris at juni> show route 217.24.235.22
> 
> inet.0: 162624 destinations, 162631 routes (162624 active, 0 
> holddown, 0
> hidden)
> + = Active Route, - = Last Active, * = Both
> 
> 217.24.235.22/32   *[IS-IS/18] 1w0d 01:11:18, metric 1000
>                     > to 217.24.235.166 via fe-3/0/0.0
> 
> 
> 
> ------------
> 
> partial "show conf"
> routing-options {
>     static {
>         route 0.0.0.0/0 next-hop 217.24.235.15;
>     }
>     router-id 217.24.235.28;
>     autonomous-system 9063;
> }
> protocols {
>     mpls {
>         interface fe-3/0/0.0;
>         interface lo0.1;
>     }
>     bgp {
>         traceoptions {
>             file bgp size 500000;
>             flag route detail;
>         }
>         group PG_TORR {
>             type internal;
>             local-address 217.24.235.28;
>             family inet {
>                 unicast;
>             }
>             family inet-vpn {
>                 unicast;
>             }
>             peer-as 9063;
>             neighbor 217.24.235.15 {
>                 authentication-key "xxxxxxxxx"; ## SECRET-DATA
>             }
>         }
>     }
>     isis {
>         traceoptions {
>             file isis size 500000;
>             flag state detail;
>             flag all detail;
>         }
>         lsp-lifetime 65535;
>         level 2 {
>             authentication-key "xxxxxxx"; ## SECRET-DATA
>             authentication-type xxxx; ## SECRET-DATA
>             no-hello-authentication;
>             wide-metrics-only;
>         }
>         interface fe-3/0/0.0 {
>             level 2 metric 1000;
>         }
>         interface all {
>             level 1 disable;
>         }
>     }
>     ldp {
>         interface all;
>     }
> }
> policy-options {
>     policy-statement RP_DENY_ALL {
>         term deny_all {
>             from as-path AP_DENY_ALL;
>         }
>         then reject;
>     }
>     policy-statement XXXX-export {
>         term a {
>             from protocol static;
>             then {
>                 community add XXXX;
>                 accept;
>             }
>         }
>         term b {
>             then reject;
>         }
>     }
>     policy-statement XXXX-import {
>         term a {
>             from {
>                 protocol bgp;
>                 community XXXX;
>             }
>             then accept;
>         }
>         term b {
>             then reject;
>         }
>     }
>     community XXXX members target:9063:1;
>     as-path AP_DENY_ALL .*;
> }
> routing-instances {
>     VRF_XXXX {
>         instance-type vrf;
>         interface lo0.1;
>         interface fe-3/0/1.0;
>         route-distinguisher 9063:1;
>         vrf-import XXXX-import;
>         vrf-export XXXX-export;
>         routing-options {
>             static {
>                 route 10.10.10.0/24 next-hop 192.168.187.1;
>             }
>         }
>     }
> }
> 
> 
> 
> 
> i.V.
>  
> --
> Christoph Staudt, Leiter Netze und Systeme / CTO
> Cisco Certified Network Associate
> 
> teresto media Aktiengesellschaft - RWE Group 
> Trierer Strasse 223-225 - 66663 Merzig / Germany
> Tel. +49-(0)6861-9312-234 - Fax +49-(0)6861-9312-199
> mailto: christoph.staudt at teresto.net - http://www.teresto.net
> 
> 
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> 



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