assist with eigrp pe-ce showing zero successor for a desired

From: Aaron <aaron1_at_gvtc.com>
Date: Sat, 18 Feb 2012 18:43:45 -0600

R9 is learning a prefix from rip and eigrp both. I'm seeing the rip route
be the one that ends up in the rib in r9. Not sure what it means that it
does see the route in eigrp topo table but with zero successors. Anyone
know? The goal is that 10.11.11.1 be reachable via the eigrp learned path
(which is over the mpls l3 vpn). R9 learns 10.11.11.1 from eigrp via pe-ce
from r8. R8 is pe, r9 is ce. I think I'm seeing this in R9 as FD 4.2
billion which seems like an unreachable/infinite metric..is this the cause
of the zero successor thing? If so, why is it 4.2 billion and how to fix?

 

 

R9#sh ip ro 10.11.11.1

Routing entry for 10.11.11.1/32

  Known via "rip", distance 120, metric 1

  Redistributing via rip

  Last update from 172.16.109.2 on Ethernet0/1, 00:00:07 ago

  Routing Descriptor Blocks:

  * 172.16.109.2, from 172.16.109.2, 00:00:07 ago, via Ethernet0/1

      Route metric is 1, traffic share count is 1

 

R9#sh ip ei top zero-successors

IP-EIGRP Topology Table for AS(51)/ID(10.99.99.9)

 

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

       r - reply Status, s - sia Status

 

P 10.11.11.1/32, 0 successors, FD is Inaccessible

        via 192.168.89.1 (2560025856/2560000256), Ethernet0/0

 

 

R8#sh bgp vp u all

BGP table version is 149, local router ID is 8.8.8.8

Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,

              r RIB-failure, S Stale

Origin codes: i - IGP, e - EGP, ? - incomplete

 

   Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 1234:5

*>i10.11.11.1/32 5.5.5.5 85 100 0 ?

Route Distinguisher: 1234:8 (default for vrf Foo)

*>i10.11.11.1/32 5.5.5.5 85 100 0 ?

*> 10.99.99.9/32 192.168.89.2 409600 32768 ?

R8#

 

R8#sh bgp vp u all 10.11.11.1

BGP routing table entry for 1234:5:10.11.11.1/32, version 142

Paths: (1 available, best #1, no table)

  Not advertised to any peer

  Local

    5.5.5.5 (metric 11) from 5.5.5.5 (5.5.5.5)

      Origin incomplete, metric 85, localpref 100, valid, internal, best

      Extended Community: RT:1234:5 OSPF DOMAIN ID:0x0005:0x000000010200

        OSPF RT:0.0.0.0:3:0 OSPF ROUTER ID:1.1.1.5:512

      mpls labels in/out nolabel/54

BGP routing table entry for 1234:8:10.11.11.1/32, version 143

Paths: (1 available, best #1, table Foo)

  Not advertised to any peer

  Local, imported path from 1234:5:10.11.11.1/32

    5.5.5.5 (metric 11) from 5.5.5.5 (5.5.5.5)

      Origin incomplete, metric 85, localpref 100, valid, internal, best

      Extended Community: RT:1234:5 OSPF DOMAIN ID:0x0005:0x000000010200

        OSPF RT:0.0.0.0:3:0 OSPF ROUTER ID:1.1.1.5:512

      mpls labels in/out nolabel/54

R8#

 

R8#sh ip ei vrf Foo top 10.11.11.1/32

IP-EIGRP (AS 51): Topology entry for 10.11.11.1/32

  State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2560000256

  Routing Descriptor Blocks:

  5.5.5.5, from Redistributed, Send flag is 0x0

      Composite metric is (2560000256/0), Route is External

      Vector metric:

        Minimum bandwidth is 1 Kbit

        Total delay is 10 microseconds

        Reliability is 1/255

        Load is 1/255

        Minimum MTU is 1

        Hop count is 0

      External data:

        Originating router is 192.168.89.1 (this system)

        AS number of route is 1234

        External protocol is BGP, external metric is 85

        Administrator tag is 0 (0x00000000)

R8#

 

 

R9#

R9#sh ip ei top 10.11.11.1/32

IP-EIGRP (AS 51): Topology entry for 10.11.11.1/32

  State is Passive, Query origin flag is 1, 0 Successor(s), FD is 4294967295

  Routing Descriptor Blocks:

  192.168.89.1 (Ethernet0/0), from 192.168.89.1, Send flag is 0x0

      Composite metric is (2560025856/2560000256), Route is External

      Vector metric:

        Minimum bandwidth is 1 Kbit

        Total delay is 1010 microseconds

        Reliability is 1/255

        Load is 1/255

        Minimum MTU is 1

        Hop count is 1

      External data:

        Originating router is 192.168.89.1

        AS number of route is 1234

        External protocol is BGP, external metric is 85

        Administrator tag is 0 (0x00000000)

 

*** wrong result.

 

R9#traceroute 10.11.11.1 source 1.1.1.9

 

Type escape sequence to abort.

Tracing the route to 10.11.11.1

 

  1 172.16.109.2 4 msec 0 msec 0 msec

  2 192.168.210.2 20 msec 24 msec 20 msec

  3 192.168.123.1 24 msec * 24 msec

 

*** should be.(this is copy and paste from solutions..so actual negotiated
label could different , but ip hops should be same)

 

R9#traceroute 10.11.11.1 source 1.1.1.9

 

Type escape sequence to abort.

Tracing the route to 10.11.11.1

 

  1 192.168.89.1 0 msec 0 msec 4 msec

  2 192.168.45.5 [MPLS: Label 16 Exp 0] 32 msec 28 msec 24 msec

  3 192.168.45.4 32 msec 28 msec 32 msec

  4 172.16.1.1 32 msec 28 msec 32 msec

  5 192.168.123.1 32 msec * 32 msec

 

R9#

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Received on Sat Feb 18 2012 - 18:43:45 ART

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