[c-nsp] EIGRP Routes dropping out of topology table within MPLSVPN

Eric Kagan ekagan at axsne.com
Tue Oct 24 08:32:48 EDT 2006


> Hello Eric .
> 
> Can you provide the " show ip route vrf xxx " output please ? 

Vrf sne is the issue (output below)

> 
> Is this showing the route is actually learn via BGP or EIGRP ? 

BGP - it's random 90.0.0.0 and 10.0.0.0 routes that are an issue. (output
below)

> 
> Can you provide as well " show ip bgp vpnv4 vrf xxxx | inc  
> <your route> 

Output below

> 
> A sample of the running config will be awesome as well .

I scrubbed it and included integral parts.


> [c-nsp] EIGRP Routes dropping out of topology table within MPLS VPN
> 
> 
> I have a situation where a customer is running EIGRP within 
> an MPLS VPN.
> They will call that a site is "down" and when we issue a 
> 'show ip eigrp 
> vrf
> xx top'  the routes are not in there. If you check 'show ip 
> route vrf xx'
> they are there.  (I can post with sample tables if 
> necessary).  If I reset
> the BGP sessions with the route reflector, they all come back.
>  
> I have tried 2 different routers, reboots, IOS upgrades, etc  
> to no avail.
> The strange thing is I did an IOS upgrade last night and 
> after the reboot
> there were only 21 routes in the top table after thereboot 
> instead of 62. 
> I
> had to clear the BGP sessions right after the reboot ???
>  
> show vers below of the routers - have tried 12.3(19)P, 12.3(20)P,
> 12.2.18S12P
> I can't find any direct bug notices either ??
>  
> Anyone seen anything like this ?  We had them on a 7500 a 
> while back and
> never had a problem.
>  
> Thanks
> Eric
>  
> ==============================================================
> =============
>  
>  
> Cisco Internetwork Operating System Software
> IOS (tm) 7200 Software (C7200-P-M), Version 12.2(18)S12, 
> RELEASE SOFTWARE
> (fc1)
> Technical Support: http://www.cisco.com/techsupport
> Copyright (c) 1986-2006 by cisco Systems, Inc.
> Compiled Thu 25-May-06 12:32 by tinhuang
> Image text-base: 0x60008FE0, data-base: 0x61522000
>  
> ROM: System Bootstrap, Version 12.0(19990210:195103) [12.0XE 105],
> DEVELOPMENT SOFTWARE
> BOOTLDR: 7200 Software (C7200-BOOT-M), Version 12.0(5)T1,  RELEASE 
> SOFTWARE
> (fc1)
>  
> vxr300-test uptime is 12 hours, 2 minutes
> System returned to ROM by reload at 21:59:10 edt Fri Oct 20 2006
> System restarted at 22:00:54 edt Fri Oct 20 2006
> Running default software
> Last reload reason: Reload command
>  
> 
> cisco 7206VXR (NPE300) processor (revision B) with 
> 262144K/32768K bytes of
> memory.
> Processor board ID 26813043
> R7000 CPU at 262Mhz, Implementation 39, Rev 1.0, 256KB L2 Cache
> 6 slot VXR midplane, Version 2.6
>  
> Last reset from power-on
> X.25 software, Version 3.0.0.
> Bridging software.
>  
> PCI bus mb0_mb1 has 200 bandwidth points
> PCI bus mb2 has 200 bandwidth points
>  
> 2 FastEthernet/IEEE 802.3 interface(s)
> 125K bytes of non-volatile configuration memory.
>  
> 125184K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).
> 4096K bytes of Flash internal SIMM (Sector size 256K).
> Configuration register is 0x2102
>  
>  
>  
> --
>  
> Cisco Internetwork Operating System Software
> IOS (tm) 7200 Software (C7200-P-M), Version 12.3(19), RELEASE 
> SOFTWARE 
> (fc2)
> Technical Support: http://www.cisco.com/techsupport
> Copyright (c) 1986-2006 by cisco Systems, Inc.
> Compiled Thu 11-May-06 22:37 by evmiller
> Image text-base: 0x60008AF4, data-base: 0x61A5C000
>  
> ROM: System Bootstrap, Version 12.2(4r)B, RELEASE SOFTWARE (fc1)
> BOOTLDR: 7200 Software (C7200-BOOT-M), Version 12.0(17)S, 
> EARLY DEPLOYMENT
> RELEASE SOFTWARE (fc1)
>  
> ma.marl.colo-rtr2 uptime is 3 weeks, 4 hours, 35 minutes
> System returned to ROM by reload at 05:26:49 edt Sat Sep 30 2006
> System restarted at 05:28:44 edt Sat Sep 30 2006
> System image file is "slot0:c7200-p-mz.123-19.bin"
> Last reload reason: Reload command
>  
> 
> cisco 7206VXR (NPE400) processor (revision A) with 
> 491520K/32768K bytes of
> memory.
> Processor board ID 31525253
> R7000 CPU at 350MHz, Implementation 39, Rev 3.3, 256KB L2 Cache
> 6 slot VXR midplane, Version 2.7
>  
> Last reset from power-on
> X.25 software, Version 3.0.0.
> Bridging software.
>  
> PCI bus mb0_mb1 (Slots 0, 1, 3 and 5) has a capacity of 600 bandwidth
> points.
> Current configuration on bus mb0_mb1 has a total of 400 
> bandwidth points.
> This configuration is within the PCI bus capacity and is supported.
>  
> PCI bus mb2 (Slots 2, 4, 6) has a capacity of 600 bandwidth points.
> Current configuration on bus mb2 has a total of 400 bandwidth points
> This configuration is within the PCI bus capacity and is supported.
>  
> Please refer to the following document "Cisco 7200 Series Port Adaptor
> Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>
> for c7200 bandwidth points oversubscription and usage guidelines.
>  
> 
> 4 FastEthernet/IEEE 802.3 interface(s)
> 125K bytes of non-volatile configuration memory.
>  
> 24576K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
> 4096K bytes of Flash internal SIMM (Sector size 256K).
> Configuration register is 0x2102
>  

vxr3#show ip route vrf sne

Routing Table: sne
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static
route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is 90.0.1.1 to network 0.0.0.0

     100.0.0.0/30 is subnetted, 6 subnets
D       100.1.50.0 [90/297246976] via 90.0.1.1, 20:10:11,
FastEthernet2/0.233
D       100.1.60.0 [90/297246976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       100.1.4.0 [90/297246976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       100.1.6.0 [90/297246976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       100.1.2.0 [90/297246976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       100.1.18.0 [90/297246976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
     10.0.0.0/8 is variably subnetted, 21 subnets, 2 masks
D       10.10.1.0/24 [90/30720] via 90.0.1.1, 22:16:23, FastEthernet2/0.233
B       10.10.5.0/24 [200/2195456] via 10.100.6.211, 2d22h
D       10.4.6.0/30 [90/335646976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       10.10.9.0/24 [200/2195456] via 10.100.6.204, 2d22h
B       10.10.10.0/24 [200/2195456] via 10.100.6.194, 2d22h
D       10.4.4.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       10.10.11.0/24 [200/2195456] via 10.100.6.194, 2d22h
D       10.2.4.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       10.10.13.0/24 [200/2195456] via 10.100.6.204, 2d22h
D       10.3.4.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       10.1.6.0/30 [90/335646976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       10.10.14.0/24 [200/2195456] via 10.100.6.204, 2d22h
D       10.2.6.0/30 [90/335646976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       10.10.15.0/24 [200/2195456] via 10.100.6.204, 2d22h
D       10.3.6.0/30 [90/335646976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       10.1.4.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       10.10.16.0/24 [200/2195456] via 10.100.6.212, 2d22h
D       10.10.50.0/24
           [90/322846976] via 90.0.1.1, 00:05:01, FastEthernet2/0.233
D       10.2.60.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       10.3.60.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       10.1.60.0/30 [90/310046976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
     192.168.255.0/24 is variably subnetted, 22 subnets, 2 masks
B       192.168.255.18/32 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.16/30 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.6/32 [200/0] via 10.100.6.194, 2d22h
B       192.168.255.4/30 [200/0] via 10.100.6.194, 2d22h
B       192.168.255.2/32 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.0/30 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.14/32 [200/0] via 10.100.6.194, 2d22h
B       192.168.255.12/30 [200/0] via 10.100.6.194, 2d22h
B       192.168.255.10/32 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.8/30 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.60/30 [200/0] via 10.100.6.211, 2d22h
B       192.168.255.56/30 [200/0] via 10.100.6.211, 2d22h
B       192.168.255.85/32 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.84/30 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.69/32 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.68/30 [200/0] via 10.100.6.204, 2d22h
B       192.168.255.65/32 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.64/30 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.77/32 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.76/30 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.73/32 [200/0] via 10.100.6.212, 2d22h
B       192.168.255.72/30 [200/0] via 10.100.6.212, 2d22h
     90.0.0.0/24 is subnetted, 17 subnets
B       90.0.111.0 [200/0] via 10.100.6.212, 2d22h
B       90.0.18.0 [200/0] via 10.100.6.212, 2d22h
B       90.0.16.0 [200/0] via 10.100.6.212, 2d22h
B       90.0.10.0 [200/0] via 10.100.6.194, 2d22h
B       90.0.11.0 [200/0] via 10.100.6.194, 2d22h
B       90.0.8.0 [200/0] via 10.100.6.212, 2d22h
B       90.0.9.0 [200/0] via 10.100.6.204, 2d22h
B       90.0.14.0 [200/0] via 10.100.6.204, 2d22h
B       90.0.15.0 [200/0] via 10.100.6.204, 2d22h
B       90.0.13.0 [200/0] via 10.100.6.204, 2d22h
D       90.0.2.0 [90/297249536] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       90.0.3.0 [200/0] via 10.100.6.211, 2d22h
C       90.0.1.0 is directly connected, FastEthernet2/0.233
D       90.0.6.0 [90/322846976] via 90.0.1.1, 3d10h, FastEthernet2/0.233
D       90.0.4.0 [90/297249536] via 90.0.1.1, 3d10h, FastEthernet2/0.233
B       90.0.5.0 [200/0] via 10.100.6.211, 2d22h
D       90.0.50.0 [90/322846976] via 90.0.1.1, 17:04:55, FastEthernet2/0.233
S*   0.0.0.0/0 [1/0] via 90.0.1.1

vxr3#show ip bgp vpnv4 vrf sne | incl 90.0
*> 0.0.0.0          90.0.1.1                 0         32768 ?
*> 10.1.4.0/30      90.0.1.1         310046976         32768 ?
*> 10.1.6.0/30      90.0.1.1         335646976         32768 ?
*> 10.1.60.0/30     90.0.1.1         310046976         32768 ?
*> 10.2.4.0/30      90.0.1.1         310046976         32768 ?
*> 10.2.6.0/30      90.0.1.1         335646976         32768 ?
*> 10.2.60.0/30     90.0.1.1         310046976         32768 ?
*> 10.3.4.0/30      90.0.1.1         310046976         32768 ?
*> 10.3.6.0/30      90.0.1.1         335646976         32768 ?
*> 10.3.60.0/30     90.0.1.1         310046976         32768 ?
*> 10.4.4.0/30      90.0.1.1         310046976         32768 ?
*> 10.4.6.0/30      90.0.1.1         335646976         32768 ?
*> 10.10.1.0/24     90.0.1.1             30720         32768 ?
*> 10.10.50.0/24    90.0.1.1         322846976         32768 ?
*> 90.0.1.0/24      0.0.0.0                  0         32768 ?
*> 90.0.2.0/24      90.0.1.1         297249536         32768 ?
*>i90.0.3.0/24      10.100.6.211            0    100      0 ?
*> 90.0.4.0/24      90.0.1.1         297249536         32768 ?
*>i90.0.5.0/24      10.100.6.211            0    100      0 ?
*> 90.0.6.0/24      90.0.1.1         322846976         32768 ?
*>i90.0.8.0/24      10.100.6.212            0    100      0 ?
*>i90.0.9.0/24      10.100.6.204            0    100      0 ?
*>i90.0.10.0/24     10.100.6.194            0    100      0 ?
*>i90.0.11.0/24     10.100.6.194            0    100      0 ?
*>i90.0.13.0/24     10.100.6.204            0    100      0 ?
*>i90.0.14.0/24     10.100.6.204            0    100      0 ?
*>i90.0.15.0/24     10.100.6.204            0    100      0 ?
*>i90.0.16.0/24     10.100.6.212            0    100      0 ?
*>i90.0.18.0/24     10.100.6.212            0    100      0 ?
*> 90.0.50.0/24     90.0.1.1         322846976         32768 ?
*>i90.0.111.0/24    10.100.6.212            0    100      0 ?
*> 100.1.2.0/30     90.0.1.1         297246976         32768 ?
*> 100.1.4.0/30     90.0.1.1         297246976         32768 ?
*> 100.1.6.0/30     90.0.1.1         297246976         32768 ?
*> 100.1.18.0/30    90.0.1.1         297246976         32768 ?
*> 100.1.50.0/30    90.0.1.1         297246976         32768 ?
*> 100.1.60.0/30    90.0.1.1         297246976         32768 ?
vxr3#



vxr3#show conf
!
hostname vxr3
!
boot system disk0:c7200-p-mz.122-18.s12.bin
logging snmp-authfail
logging buffered 32768 debugging
no logging console
ip subnet-zero
ip cef

ip vrf mplstest
 description mpls loopback999 vrf connectivity test
 rd 12345:999
 route-target export 12345:999
 route-target import 12345:999
!
ip vrf sne
 description mpls SNE
 rd 12345:14
 route-target export 12345:14
 route-target import 12345:14
!
no mpls traffic-eng auto-bw timers frequency 0
call rsvp-sync
!
memory-size iomem 32
!
!
!
interface Loopback0
 ip address 10.100.6.205 255.255.255.255
!
interface Loopback999
 description mpls loopback test interface
 ip vrf forwarding mplstest
 ip address 10.222.1.13 255.255.255.255
!
interface FastEthernet1/0
 ip address 10.100.6.13 255.255.255.128
 ip flow ingress
 duplex full
 mpls label protocol ldp
 tag-switching mtu 1508
 tag-switching ip
!
interface FastEthernet2/0
 no ip address
 ip flow ingress
 duplex full
!
interface FastEthernet2/0.26
 description connected to EPE
 encapsulation dot1Q 26
 ip vrf forwarding epe
 ip address 172.16.16.252 255.255.240.0
 standby 2 ip 172.16.16.254
 standby 2 preempt
!
interface FastEthernet2/0.233
 description connected to SNE
 encapsulation dot1Q 233
 ip vrf forwarding sne
 ip address 90.0.1.250 255.255.255.0
 ip nbar protocol-discovery
!
router eigrp 12345
 network 10.100.6.0 0.0.31.255
  no auto-summary
!
router eigrp 999
 no auto-summary
 !
 address-family ipv4 vrf mplstest
 redistribute bgp 12345
 network 10.222.1.0 0.0.0.255
 default-metric 10000 1 255 1 1500
 no auto-summary
 exit-address-family
!
router eigrp 14
 no auto-summary
 !
 address-family ipv4 vrf sne
 redistribute bgp 12345
 network 10.10.0.0 0.0.255.255
 network 90.0.0.0
 network 192.168.255.0
 no auto-summary
 autonomous-system 100
 exit-address-family
!
router bgp 12345
 no synchronization
 bgp log-neighbor-changes
 network 10.100.6.0 mask 255.255.224.0
 redistribute connected
 neighbor RR_SERVER peer-group
 neighbor RR_SERVER remote-as 12345
 neighbor RR_SERVER update-source Loopback0
 neighbor RR_SERVER next-hop-self
 neighbor 10.100.6.201 peer-group RR_SERVER
 neighbor 10.100.6.201 description pecore-mm
 neighbor 10.100.6.203 peer-group RR_SERVER
 neighbor 10.100.6.203 description pecore-wm
 no auto-summary
 !
 address-family vpnv4
 neighbor RR_SERVER activate
 neighbor RR_SERVER send-community extended
 neighbor 10.100.6.201 peer-group RR_SERVER
 neighbor 10.100.6.203 peer-group RR_SERVER
 exit-address-family
 !
 address-family ipv4 vrf sne
 redistribute connected
 redistribute static
 redistribute eigrp 100
 default-information originate
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4 vrf mplstest
 redistribute connected
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4 vrf epe
 redistribute connected
 redistribute static
 default-information originate
 no auto-summary
 no synchronization
 exit-address-family
!
ip classless
ip route vrf epe 0.0.0.0 0.0.0.0 172.16.16.1
ip route vrf sne 0.0.0.0 0.0.0.0 90.0.1.1
no ip http server
!
ip bgp-community new-format
ip as-path access-list 1 permit .*
ip as-path access-list 2 deny .*
ip as-path access-list 3 permit ^$
!
ip radius source-interface Loopback0
!
logging trap debugging
logging source-interface Loopback0
logging 10.100.6.100
access-list compiled
access-list 12 remark Telnet/SNMP ACL
access-list 12 permit 10.100.6.104
access-list 12 permit 10.100.6.101
access-list 12 permit 10.100.6.100
access-list 12 permit 10.100.6.103
access-list 12 permit 10.100.6.102
access-list 12 deny   any log
access-list 101 deny   ip 10.0.0.0 0.255.255.255 any
access-list 101 deny   ip 169.254.0.0 0.0.255.255 any
access-list 101 deny   ip 192.168.0.0 0.0.255.255 any
access-list 101 deny   ip 172.16.0.0 0.15.255.255 any
access-list 101 deny   ip any 10.0.0.0 0.255.255.255
access-list 101 deny   ip any 169.254.0.0 0.0.255.255
access-list 101 deny   ip any 192.168.0.0 0.0.255.255
access-list 101 deny   ip any 172.16.0.0 0.15.255.255
access-list 101 deny   tcp any any eq 135
access-list 101 deny   tcp any eq 135 any
access-list 101 deny   tcp any any eq 445
access-list 101 deny   tcp any eq 445 any
access-list 101 permit ip any any
snmp-server community xxx RO 12
snmp-server trap-source Loopback0
snmp-server packetsize 2048
snmp-server enable traps snmp authentication linkdown linkup coldstart
warmstart
snmp-server enable traps tty
snmp-server enable traps isdn call-information
snmp-server enable traps isdn layer2
snmp-server enable traps isdn chan-not-avail
snmp-server enable traps isdn ietf
snmp-server enable traps channel
snmp-server enable traps srp
snmp-server enable traps hsrp
snmp-server enable traps config
snmp-server enable traps entity
snmp-server enable traps envmon fan shutdown supply temperature status
snmp-server enable traps aaa_server
snmp-server enable traps bgp
snmp-server enable traps pim neighbor-change rp-mapping-change
invalid-pim-message
snmp-server enable traps ipmulticast
snmp-server enable traps msdp
snmp-server enable traps rsvp
snmp-server enable traps frame-relay
snmp-server enable traps rtr
snmp-server enable traps mpls traffic-eng
snmp-server enable traps mpls ldp
snmp-server enable traps dial
snmp-server enable traps dsp card-status
snmp-server enable traps mpls vpn
snmp-server enable traps voice poor-qov
snmp-server enable traps xgcp
snmp-server host 10.100.6.102 xxx
!
!
radius-server host 10.2.7.13 auth-port 1812 acct-port 1813
radius-server key xxx
!
control-plane
!
!
dial-peer cor custom




More information about the cisco-nsp mailing list