[j-nsp] R: Estabilishing TE's tunnels between juniper and CISCO

[Massimiliano Galizia XMG (RM/TEI)]

Ciao,
th problem could be caused by the "no-decrement-ttl" option that MUST be understood by all router in LSP: this option infact requires each router in LSP to manage a special Label request object that provides to other LSR the ingress "desire" to alter default TTL in MPLS header. So, as well as I understand your problem, you should use the "no-propagate-ttl" switch: this command make the ingress to not signal any information in Path message, so this could get to an interoperability with Cisco.
Hope this helps!! 

MASSIMILIANO GALIZIA

-----Messaggio originale-----
Da: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] Per conto di Marcio Pereira
Inviato: giovedì 3 maggio 2007 14.54
A: juniper-nsp at puck.nether.net
Oggetto: [j-nsp] Estabilishing TE's tunnels between juniper and CISCO

  Hi guys,
 
    I am trying estabilish TE tunnels between juniper ( M20 ) and cisco ( 76xx), but TE goes up just when i disable "no-decrement-ttl" knob ( That´s not good ...). Otherwise the tunnel keeps down showing the message :"Unknown Object type:label_request with no-decrement-tt"
    Have someone experienced this issue ? Any ideas how can i fix ? 
    I am using junos 7.1 and IOS 12.2(18)SXF7
 
Mp. 
 
 <mailto:marperei at jnpr> marperei at jnpr# show protocols mpls label-switched-path teste
to 201.X.X.X;
no-decrement-ttl;

 
marperei at jnpr# run show mpls lsp ingress name teste extensive
Ingress LSP: 17 sessions
 
201.X.X.X
  From: 200.X.X.X, State: Dn, ActiveRoute: 0, LSPname: teste
  ActivePath: (none)
  LoadBalance: Random
  Encoding type: Packet, Switching type: Packet, GPID: IPv4
  Primary                    State: Dn, No-decrement-ttl
    SmartOptimizeTimer: 180
    Computed ERO (S [L] denotes strict [loose] hops): (CSPF metric: 10)
 201.X.X.X S
    3 May  3 09:25:17 201.47.0.6: Unknown Object type:label_request with no-decrement-ttl[3 times]
    2 May  3 09:25:08 Originate Call
    1 May  3 09:25:08 CSPF: computation result accepted
  Created: Thu May  3 09:25:06 2007
Total 1 displayed, Up 0, Down 1

Mp.
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