Guest

Preview Tool

Cisco Bug: CSCus68906 - OSPF nighbor not created with subintf --LPTS decap with wrong intf

Last Modified

Jan 10, 2017

Products (1)

  • Cisco IOS XRv Router

Known Affected Releases

5.4.0.BASE

Description (partial)

Development DDTS

Symptom:
UUT (sunstone)---ASR9K

on suntone:
RP/0/RP0/CPU0:ott02-sim-09-uut#sh run router ospf
router ospf 100
 log adjacency changes
 router-id 101.0.0.1
 mtu-ignore enable
 nsf cisco
 area 0
  interface Loopback0
  !
  interface TenGigE0/RP0/CPU0/0.100
   mtu-ignore enable
  !
 !
!

on sunstone uut:the ospf neighbor is not up:
RP/0/RP0/CPU0:ott02-sim-09-uut#sh ospf nei
RP/0/RP0/CPU0:ott02-sim-09-uut#

on ASR9K:
RP/0/RSP0/CPU0:ott02-sim-09-r1#sh ospf nei

* Indicates MADJ interface

Neighbors for OSPF 100

Neighbor ID     Pri   State           Dead Time   Address         Interface
101.0.0.1       1     INIT/DROTHER    00:00:39    109.1.1.1       TenGigE0/3/0/0.100

Total neighbor count: 1
RP/0/RSP0/CPU0:ott02-sim-09-r1#      

When turning on the debug ospf hello, we can see the hello packets sending out from ASR9K but somehow sunstone not receiving or dropping them:
on sunstone:
RP/0/RP0/CPU0:Jan 28 19:06:06.140 : ospf[1018]: Send hello pkt pri 1 options 0x12 DR 109.1.1.1 BDR 0.0.0.0 hello 10 dead 40 netmask 255.255.255.0, vrf default vrfid 0x60000000
RP/0/RP0/CPU0:Jan 28 19:06:15.567 : ospf[1018]: Send hello to 224.0.0.5 area 0 on TenGigE0/RP0/CPU0/0.100 from 109.1.1.1 (nbr/if state 3/5)
RP/0/RP0/CPU0:Jan 28 19:06:15.567 : ospf[1018]: Send hello pkt pri 1 options 0x12 DR 109.1.1.1 BDR 0.0.0.0 hello 10 dead 40 netmask 255.255.255.0, vrf default vrfid 0x60000000

RP/0/RP0/CPU0:ott02-sim-09-uut#
RP/0/RP0/CPU0:ott02-sim-09-uut#RP/0/RP0/CPU0:Jan 28 19:06:25.298 : ospf[1018]: Send hello to 224.0.0.5 area 0 on TenGigE0/RP0/CPU0/0.100 from 109.1.1.1 (nbr/if state 3/5)
RP/0/RP0/CPU0:Jan 28 19:06:25.299 : 

on ASR9K:
RP/0/RSP0/CPU0:ott02-sim-09-r1#RP/0/RSP0/CPU0:Jan 28 12:15:15.111 : ospf[1014]: Send hello to 224.0.0.5 area 0 on TenGigE0/3/0/0.100 from 109.1.1.2 (nbr/if state 3/5)
RP/0/RSP0/CPU0:Jan 28 12:15:15.111 : ospf[1014]: Send hello pkt pri 1 options 0x12 DR 109.1.1.2 BDR 0.0.0.0 hello 10 dead 40 netmask 255.255.255.0, vrf default vrfid 0x60000000
RP/0/RSP0/CPU0:Jan 28 12:15:19.330 : ospf[1014]:  Rcv hello from 101.0.0.1 area 0 from TenGigE0/3/0/0.100 109.1.1.1 (nbr/if state 3/5) vrf default vrfid 0x60000000
RP/0/RSP0/CPU0:Jan 28 12:15:19.330 : ospf[1014]: Rcv hello pkt pri 1 options 0x12 DR 109.1.1.1 BDR 0.0.0.0 hello 10 dead 40 netmask 255.255.255.0 (nbr_dr 109.1.1.1 nbr_bdr 0.0.0.0)
RP/0/RSP0/CPU0:Jan 28 12:15:19.330 : ospf[1014]:  End of hello processing

on sunstone, the LPTS missing 224.0.0.5 entry:
RP/0/RP0/CPU0:ott02-sim-09-uut#sh lpts pifib hard ent bri

             Node: 0/RP0/CPU0:
----------------------------------------
* - Vital; L4 - Layer4 Protocol; Intf - Interface;
DestNode - Destination Node;
na - Not Applicable or Not Available;
def - default

Local Address.Port,
Remote Address.Port/(BFD disc)      L3         L4     Intf         Slice  FlowType        DestNode(s)
----------------------------------------------------------------------------------------------------
 0 any                              IPv4_frag  any    any          0      Fragment        Local
 0.ECHO   any                       IPv4       ICMP   any          0      ICMP-local      Local
 0 any                              IPv4       OSPF   Te0/RP0/CPU0/0.100 0      OSPF-mc-known   0/RP0/CPU0
 0 any                              IPv4       OSPF   Te0/RP0/CPU0/0.100 0      OSPF-mc-known   0/RP0/CPU0
 0 any                              IPv4       OSPF   Te0/RP0/CPU0/0.100 0      OSPF-uc-known   0/RP0/CPU0
 0.ECHOREPLY any                    IPv4       ICMP   any          0      ICMP-app-default 0/RP0/CPU0
 0.UNREACH any                      IPv4       ICMP   any          0      ICMP-default    Local
 0.SRCQUENCH any                    IPv4       ICMP   any          0      ICMP-default    Local
 0.REDIRECT any                     IPv4       ICMP   any          0      ICMP-default    Local
 0.TIMXCEED any                     IPv4       ICMP   any          0      ICMP-default    Local
 0.PARAMPROB any                    IPv4       ICMP   any          0      ICMP-default    Local
 0.TSTAMP any                       IPv4       ICMP   any          0      ICMP-local      Local
 0.MASKREQ any                      IPv4       ICMP   any          0      ICMP-local      Local
 0 any.179                          IPv4       TCP    any          0      BGP-default     0/RP0/CPU0
 0.179    any                       IPv4       TCP    any          0      BGP-default     0/RP0/CPU0
 0 any                              IPv4       TCP    any          0      TCP-default     0/RP0/CPU0
 0.1701   any                       IPv4       UDP    any          0      L2TPv2-default  0/RP0/CPU0
 0 any                              IPv4       UDP    any          0      UDP-default     0/RP0/CPU0
 0 any                              IPv4       RSVP   any          0      RSVP-default    Local
 0 any                              IPv4       OSPF   any          0      OSPF-mc-default 0/RP0/CPU0
 0 any                              IPv4       OSPF   any          0      OSPF-mc-default 0/RP0/CPU0
 0 any                              IPv4       OSPF   any          0      OSPF-uc-default 0/RP0/CPU0
 0 any                              IPv4       any    any          0      Raw-default     0/RP0/CPU0
 0 any                              IPv6_frag  any    any          0      Fragment        Local
 0.ECHOREQ any                      IPv6       ICMP6  any          0      ICMP-local      Local
 0.NDRTRSLCT any                    IPv6       ICMP6  any          0      ICMP-control    Local
 0.NDRTRADV any                     IPv6       ICMP6  any          0      ICMP-control    Local
 0.NDNBRSLCT any                    IPv6       ICMP6  any          0      ICMP-control    Local
 0.NDNBRADV any                     IPv6       ICMP6  any          0      ICMP-control    Local
 0 any.179                          IPv6       TCP    any          0      BGP-default     0/RP0/CPU0
 0.179    any                       IPv6       TCP    any          0      BGP-default     0/RP0/CPU0
 0 any                              IPv6       TCP    any          0      TCP-default     0/RP0/CPU0
 0 any                              IPv6       UDP    any          0      UDP-default     0/RP0/CPU0
 0.UNREACH any                      IPv6       ICMP6  any          0      ICMP-default    Local
 0.PAK2BIG any                      IPv6       ICMP6  any          0      ICMP-default    Local
 0.TIMXCEED any                     IPv6       ICMP6  any          0      ICMP-default    Local
 0.HDRBAD any                       IPv6       ICMP6  any          0      ICMP-default    Local
 0.ECHOREPLY any                    IPv6       ICMP6  any          0      ICMP-app-default 0/RP0/CPU0
 0 any                              IPv6       OSPF   any          0      OSPF-mc-default 0/RP0/CPU0
 0 any                              IPv6       OSPF   any          0      OSPF-mc-default 0/RP0/CPU0
 0 any                              IPv6       OSPF   any          0      OSPF-uc-default 0/RP0/CPU0
 0 any                              IPv6       any    any          0      Raw-default     0/RP0/CPU0
 - -                                ISIS       -      any          0      ISIS-default    0/RP0/CPU0
 0 (0x0)                            IPv4       UDP    any          0      BFD-default     Local

RP/0/RP0/CPU0:ott02-sim-09-uut#

on ASR9K:
RP/0/RSP0/CPU0:ott02-sim-09-r1#sh lpts pifib hard ent bri loc 0/3/cpu0

             Node: 0/3/CPU0:
----------------------------------------
L3 - L3 Protocol;L4 - Layer4 Protocol; Intf - Interface;
Dest - Destination Node; V - Virtual;
na - Not Applicable or Not Available;
LU - Local chassis fabric unicast;
LM - Local chassis fabric multicast;
RU - Multi chassis fabric unicast;
RM - Multi chassis fabric multicast;
def - default

Offset L3   VRF id       L4     Intf            Dest       laddr,Port raddr,Port          acl name
------ ---- ------------ ------ --------------- ---------  ----------                     -----------------------------------
8      IPV4 *            any    any             Local      any,any any,any
9      CLNS *            -      any             LU(30)     - -
10     IPV4 *            ICMP   any             Local      any,any any,ECHO
11     IPV4 *            OSPF   Optimized       LM[3]      224.0.0.5,any any,any
12     IPV4 *            OSPF   Optimized       LM[3]      224.0.0.6,any any,any
13     IPV4 *            OSPF   Optimized       LM[3]      any,any any,any
14     IPV4 default      TCP    any             LU(30)     any,23 any,any
15     IPV4 default      L2TPV3 any             LU(30)     any,any any,any
16     IPV4 *            OSPF   any             LU(30)     224.0.0.5,any any,any
17     IPV4 *            OSPF   any             LU(30)     224.0.0.6,any any,any
18     IPV4 *            TCP    any             LU(30)     any,any any,179
19     IPV4 *            UDP    any             LU(30)     any,1701 any,any
20     IPV4 *            TCP    any             LU(30)     any,179 any,any
21     IPV4 *            ICMP   any             LU(30)     any,any any,ECHOREPLY
22     IPV4 *            ICMP   any             Local      any,any any,UNREACH
23     IPV4 *            ICMP   any             Local      any,any any,TIMXCEED
24     IPV4 *            ICMP   any             Local      any,any any,PARAMPROB
25     IPV4 *            ICMP   any             Local      any,any any,SRCQUENCH
26     IPV4 *            ICMP   any             Local      any,any any,REDIRECT
27     IPV4 *            ICMP   any             Local      any,any any,TSTAMP
28     IPV4 *            ICMP   any             Local      any,any any,MASKREQ
29     IPV4 *            TCP    any             LU(30)     any,any any,any
30     IPV4 *            UDP    any             LU(30)     any,any any,any
31     IPV4 *            OSPF   any             LU(30)     any,any any,any
32     IPV4 *            RSVP   any             Local      any,any any,any
33     IPV4 *            any    any             LU(30)     any,any any,any
34     IPV4 *            UDP    any             LU(8)      any,3785 any,any 254
35     IPV4 *            UDP    any             LU(1aa)    any,3785 128.21.0.0/16,any 254
36     IPV4 *            UDP    any             Local      any,any any,any
4      IPV6 *            any    any             Local      any,any any,any
5      IPV6 *            ICMP6  any             Local      any,any any,NDRTRSLCT
6      IPV6 *            ICMP6  any             Local      any,any any,NDRTRADV
7      IPV6 *            ICMP6  any             Local      any,any any,NDNBRSLCT
8      IPV6 *            ICMP6  any             Local      any,any any,NDNBRADV
9      IPV6 *            ICMP6  any             Local      any,any any,ECHOREQ
10     IPV6 default      TCP    any             LU(30)     any,23 any,any
11     IPV6 *            OSPF   any             LU(30)     ff02::5,any any,any
12     IPV6 *            OSPF   any             LU(30)     ff02::6,any any,any
13     IPV6 *            TCP    any             LU(30)     any,any any,179
14     IPV6 *            TCP    any             LU(30)     any,179 any,any
15     IPV6 *            ICMP6  any             LU(30)     any,any any,ECHOREPLY
16     IPV6 *            ICMP6  any             Local      any,any any,UNREACH
17     IPV6 *            ICMP6  any             Local      any,any any,PAK2BIG
18     IPV6 *            ICMP6  any             Local      any,any any,TIMXCEED
19     IPV6 *            ICMP6  any             Local      any,any any,HDRBAD
20     IPV6 *            TCP    any             LU(30)     any,any any,any
21     IPV6 *            UDP    any             LU(30)     any,any any,any
22     IPV6 *            OSPF   any             LM[2]      any,any any,any
23     IPV6 *            any    any             LU(30)     any,any any,any

RP/0/RSP0/CPU0:ott02-sim-09-r1#

Note: this only happens with subinterface, main interface works fine.

Conditions:
image:
Refpoint = calvados/release@flex-xr/9
Built By     : abdbaig
 Built On     : Mon Jan 19 11:00:37 EST 2015
 Build Host   : ott-lb-030
 Workspace    : /workspace1/abdbaig/flex-xr-twig-lpts2
 Source Base  : ios_ena
 Devline      : flex-xr-twig-lpts.lu
 Devline Type : ACME Project (Devline uses a project: flex-xr-twig-lpts%7)
 flex-xr-twig-lpts   EFR-00000294834   Project
 flex-xr-twig        EFR-00000294629   Project
 flex-xr             EFR-00000294529   Project
 ci-531              EFR-00000292004   Lineup
 ci-530              EFR-00000290307   Lineup
 default             EFR-00000289219   Lineup
RP/0/RP0/CPU0:ott02-sim-09-uut#
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.