The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] RE: mpls traceroute problems
Hello Amos, Can you tell me your settings for TTL propagation? Thanks, ROD L. MARTIN CCDP, CFE, JNCIS, CFOE (OFFICE) 703-621-1646 (MOBILE) 703-967-9503 rmartin@btnaccess.com http://www.mplsrc.com http://www.btnaccess.com http://www.vpnc.org -----Original Message----- From: Amos Rosenboim [mailto:r.amos@zahav.net.il] Sent: Wednesday, September 10, 2003 5:47 PM To: mpls-ops@mplsrc.com Subject: [MPLS-OPS]: mpls traceroute problems Hi, I have a problem with mpls tracerote. My topology is: Pe (cisco 7200)--------fastethernet----→P(cisco7400)------Oc3POS-------→ASBR(cisco1200 8)---------Oc3POS---→upstream provider (inter-as mpls vpn). 213.8.43.8/30 213.8.45.220/30 63.218.13.12/30 The problem is that when I trace from the PE router to the upstream provider connected ip address ( 63.218.13.13) I get the following output: PNV4#traceroute 63.218.13.13 Type escape sequence to abort. Tracing the route to 63.218.13.13 1 * * * 2 * * * 3 63.218.13.13 148 msec * 148 msec VPNV4# Note: this address routing is in a /32 because of a bgp created host route in the gsr. When tracing to other addresses which I have igp routing to, there is no problem and the traceroute looks just fine: VPNV4#traceroute 192.116.202.99 Type escape sequence to abort. Tracing the route to 192.116.202.99 1 213.8.43.10 [MPLS: Label 340 Exp 0] 4 msec 0 msec 0 msec 2 213.8.45.221 [MPLS: Label 14963 Exp 0] 328 msec 4 msec 0 msec 3 192.117.180.9 200 msec 0 msec 4 msec 4 192.116.202.99 0 msec 0 msec 0 msec VPNV4# Routing and mpls label information looks ok to me. 7200 PE label info: VPNV4#sh mpls forwarding-table 63.218.13.13 Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 3705 3700 63.218.13.13/32 0 Fa0/0 213.8.43.10 VPNV4# 7400 P label info: PXF#sh mpls forwarding-table 63.218.13.13 Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 3700 15331 63.218.13.13/32 600 PO1/0 point2point PXF# 12008 ASBR label info: Eden#sh mpls forwarding-table 63.218.13.13 Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 15331 Pop tag 63.218.13.13/32 1692 PO0/3 point2point Eden# What makes it even stranger to me is that if I traceroute inside the vrf, it seems ok: VPNV4#traceroute vrf PCCW-TEST 10.1.1.3 Type escape sequence to abort. Tracing the route to 10.1.1.3 1 213.8.43.10 [MPLS: Labels 3700/536 Exp 0] 156 msec 156 msec 156 msec 2 213.8.45.221 [MPLS: Labels 15331/536 Exp 0] 156 msec 156 msec 156 msec 3 63.218.13.13 [MPLS: Label 536 Exp 0] 156 msec 156 msec 152 msec 4 63.218.12.89 [MPLS: Labels 185/1055 Exp 0] 156 msec 156 msec 156 msec 5 63.218.12.38 [MPLS: Labels 12675/1055 Exp 0] 156 msec 156 msec 160 msec 6 63.216.0.29 [MPLS: Labels 13233/1055 Exp 0] 156 msec 156 msec 156 msec 7 10.1.1.14 [MPLS: Label 1055 Exp 0] 148 msec 148 msec 148 msec 8 10.1.1.13 152 msec * 152 msec VPNV4# Any suggestions and explanations will be appreciated. Regards Amos Rosenboim ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.516 / Virus Database: 313 - Release Date: 9/1/2003 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.516 / Virus Database: 313 - Release Date: 9/1/2003 ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml
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