Re: MPLS TE With PBR

From: Scott Morris <swm_at_emanon.com>
Date: Mon, 24 May 2010 10:15:59 -0400

 If you are seeing it in your label table though the OTHER side has it in
its routing table and is generating a lab (17 from Fa0/1) here. I
thought by your original message that it would be further away and nobody
in between had information for it.

So on your local router, what does "show ip route 100.2.2.2" show? or
"show ip cef detail" for that route?

You appear to have an explicit path set as well which has multiple hops,
so something is allowing you to access it already to set the tunnel up.

Prakash Kalsaria wrote:

  If i dont have that loopback in my routing table , no where how do i
  get my tuneel UP UP , where in here this case i have my tunnel up
  crazzy things going on R2#sh ip int bri
  Interface IP-Address OK? Method
  Status Protocol
  FastEthernet0/0 12.12.12.2 YES NVRAM
  up up
  FastEthernet0/1 23.23.23.2 YES NVRAM
  up up
  Loopback0 2.2.2.2 YES NVRAM
  up up
  Loopback1 100.2.2.2 YES NVRAM
  up up
  Tunnel12 100.2.2.2 YES TFTP
  up up R2#sh mpls traffic-eng tunnels Name:
  R2_t12 (Tunnel12) Destination: 100.1.1.1
  Status:
  Admin: up Oper: up Path: valid Signalling: connected path
  option 1, type explicit 12 (Basis for Setup, path weight 20) Config
  Parameters:
  Bandwidth: 0 kbps (Global) Priority: 7 7 Affinity:
  0x0/0xFFFF
  Metric Type: TE (default)
  AutoRoute: disabled LockDown: disabled Loadshare: 0
  bw-based
  auto-bw: disabled InLabel : -
  OutLabel : FastEthernet0/1, 17
  RSVP Signalling Info:
  Src 100.2.2.2, Dst 100.1.1.1, Tun_Id 12, Tun_Instance 11
  RSVP Path Info:
  My Address: 23.23.23.2
  Explicit Route: 23.23.23.3 13.13.13.3 13.13.13.1 100.1.1.1
  Record Route: NONE
  Tspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
  RSVP Resv Info:
  Record Route: NONE
  Fspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
  History:
  Tunnel:
  Time since created: 12 minutes, 4 seconds
  Time since path change: 10 minutes, 58 seconds
  Current LSP:
  Uptime: 10 minutes, 58 secondsLSP Tunnel R1_t12 is signalled,
  connection is up
  InLabel : FastEthernet0/1, implicit-null
  OutLabel : -
  RSVP Signalling Info:
  Src 100.1.1.1, Dst 100.2.2.2, Tun_Id 12, Tun_Instance 13
  RSVP Path Info:
  My Address: 100.2.2.2
  Explicit Route: NONE
  Record Route: NONE
  Tspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
  RSVP Resv Info:
  Record Route: NONE
  Fspec: ave rate=0 kbits, burst=1000 bytes, peak rate=0 kbits
  http://prakashkalsaria.wordpress.com

  On Mon, May 24, 2010 at 7:35 PM, Prakash Kalsaria <kalsaria.prakash_at_gmail.com>
  wrote:

    Well in this case loopbacks is not in routing table
    R1#sh ip cef 100.1.1.1
    100.1.1.1/32, version 16, epoch 0, connected, receive
    tag information set
    local tag: implicit-null loopback is not in label table and no
    in routing table
    so how should i work around to get this functionall crazy
    scenario http://prakashkalsaria.wordpress.com
    On Mon, May 24, 2010 at 7:22 PM, Scott Morris <swm_at_emanon.com>
    wrote:

      Once you HAVE your TE tunnel, you can use PBR in order to
      direct traffic to it.

      but if the loopback doesn't exist in the routing/CEF
      table/label table, you cannot use PBR in order to actually
      build a TE tunnel to begin with.

      HTH,

      Scott

      kalsaria.prakash_at_gmail.com wrote:

        How can we perform A MPLS TE with PBR
        a tunnel to establish through loopback which is not advertised in IGP and not
        even static is configured
        
        is it possible though PBR

        _____________________________________________________
        Prakash Kalsaria
        http://prakashkalsaria.wordpress.com
        
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Received on Mon May 24 2010 - 10:15:59 ART

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