[c-nsp] OSPF issue

John Elliot johnelliot67 at hotmail.com
Sat Nov 12 17:47:04 EST 2011


Thanks for the reply.
Sent 10000 pings from R1->R2, 1 loss:
Success rate is 99 percent (9999/10000), round-trip min/avg/max = 16/17/264 ms
I will try p-t-p suggestion now.
I also have just noticed that ping multicast address, I am not getting a response from R1's "new" Int (When pinging from R2), but I am getting response in the reverse direction?
>From R1->R2#ping 224.0.0.5
Type escape sequence to abort.Sending 1, 100-byte ICMP Echos to 224.0.0.5, timeout is 2 seconds:
Reply to request 0 from xxx.xxx.66.2, 16 msReply to request 0 from xxx.xxx.66.62, 16 ms
>From R2->R1
#ping 224.0.0.5
Type escape sequence to abort.Sending 1, 100-byte ICMP Echos to 224.0.0.5, timeout is 2 seconds:
Reply to request 0 from xxx.xxx.66.1, 16 ms
(Ran it a few times and same result)


Date: Sat, 12 Nov 2011 23:28:26 +0100
Subject: Re: [c-nsp] OSPF issue
From: kimaru at gmail.com
To: johnelliot67 at hotmail.com
CC: cisco-nsp at puck.nether.net

It seems as though R1 is not receiving hello's from R2 at some point and does so for the length of the dead timer, thus causing the adj to drop. This could be caused by any number of things. One suspect might be the use of spanning tree in carrier domain on the VLAN with an unstable topology. If somehow a topology change occurs on your circuit in the carrier domain and they are using plain 802.1d spanning tree with default settings, it could take at least 52 sec before traffic starts flowing on any alternate path in their L2 domain. During those 52 sec, any (redundant) ports that are making up the circuit connecting your R1 and R2 are likely discarding frames. The default dead time for OSPF is 40 sec. After the adjacency is formed, does the dead time decrease all the way to 0 right from the start ? Have you tried doing a ping between R1 and R2 on the dot1q subinterfaces for a period longer than 60 sec ? If that succeeds then this theory can be considered irrelevant.


Also, seeing that this is a point-to-point topology, you might want to consider, as per Randy's suggestion, configuring the OSPF network type to point-to-point as there are no other routers on the segment so there's no point in doing DR/BDR election. From the output you've given so far, I don't see any weird stuff. Maybe you could provide your router config from R1 and R2 ? Just the router ospf section should suffice.


If non of this helps or is ruled out, then we could be looking at a software bug.

On Sat, Nov 12, 2011 at 9:21 PM, John Elliot <johnelliot67 at hotmail.com> wrote:






Hi K,
I've attached details in txt doc...hopefully it's permitted by the list.


Date: Sat, 12 Nov 2011 17:53:52 +0100
Subject: Re: [c-nsp] OSPF issue

From: kimaru at gmail.com
To: johnelliot67 at hotmail.com
CC: randy_94108 at yahoo.com; cisco-nsp at puck.nether.net


Hi John,

I'm failing to get the full picture of the situation. 
Short from the fact that I'm contracting a headache from trying to read 
the logs :-)
Maybe I could help if you could provide the configs of 
the ports and maybe supply the output of the commands and log with 
proper formatting. Also, throw in a "show ip ospf" in there.


Rgds,

K

On Sat, Nov 12, 2011 at 7:43 AM, John Elliot <johnelliot67 at hotmail.com> wrote:




> Lets try this once again:

>

> You have a port-channel between R1 and R2(over which; you have had ospf running without a problem...Correct?



No  - We have a working ospf adj between FA3/0(R1), and a vlan/dot1q subint /30(R2) via provider A

>

> Also you have ospf-running on a broadcast-segment ie, netmask on port-channel ip-addr is NOT /30 is, not ospf-network point-to-point.

No - We have a new link (/30) new vlan from new provider, same vlan at both ends(As dot1q subints) that is going up/down every ~60sec

>

> So you now have a situation where you are asking two routers R1 and R2( with their-own ospf-router-ids to form "another" OSPF Neighbor relation via the same port-channel!

>

> The question you need to ask yourself is this:

>

> How can that be possible? It is NOT.

>

> Change your config to be point-to-point....(ospf) and you will see the what-you-expect!

>



We have 2 links, both /30's, one (working) is handed of via vlan at R2(Which is portchan dot1q subint), the other is physical int FA3/0, the one that is up/down, is handed off via different provider, same vlan at each end, and as portchan dot1q subints.



Hope that makes sense?



> HTH

> ./Randy

>

> --- On Fri, 11/11/11, John Elliot <johnelliot67 at hotmail.com> wrote:

>

> > From: John Elliot <johnelliot67 at hotmail.com>

> > Subject: Re: [c-nsp] OSPF issue

> > To: "cisco-nsp" <cisco-nsp at puck.nether.net>

> > Date: Friday, November 11, 2011, 4:51 PM

> >

> > Well, that turned out better :/

> >

> > > From: johnelliot67 at hotmail.com

> > > To: cisco-nsp at puck.nether.net

> > > Date: Sat, 12 Nov 2011 11:47:58 +1100

> > > Subject: Re: [c-nsp] OSPF issue

> > >

> > >

> > > Err - dont know where the line breaks went in that

> > msg?  I'll try re-send(Hopefully a tad more readable)

> > >

> > > Hope someone can assist with an ospf problem - We have

> > an existing ospf adj running fine between R1+R2, we have

> > just provisioned a second link, enabled ospf and we see it

> > form adjacency which lasts  ~60seconds, then R1 sees R2

> > as dead, and R2 Cannot see ourself in hello from R1, and

> > then the whole thing starts again.

> > > With both adj. up(From R1):Neighbor ID

> >    Pri   State

> >        Dead

> > Time   Address

> >    Interfacexxx.xxx.76.248

> > 1   FULL/DR

> >    00:00:00

> > xxx.xxx.66.62   Port-channel1.87xxx.xxx.76.248

> >   1   FULL/DR

> >    00:00:39    xxx.xxx.66.2

> >   FastEthernet3/0

> > > Then "new" link loses adj. after ~60secondsNeighbor

> > ID     Pri   State

> >          Dead

> > Time   Address

> >    Interfacexxx.xxx.76.248

> > 1   FULL/DR

> >    00:00:38    xxx.xxx.66.2

> >   FastEthernet3/0

> > > NB - pings to/from both R1+R2 are clean(No

> > loss/excessive latency), and both ends(Ints) set to mtu of

> > 1500.

> > > R1 logs

> > > Nov 12 10:12:48.716 aest: OSPF: xxx.xxx.76.248 address

> > xxx.xxx.66.62 on Port-channel1.87 is deadNov 12 10:12:48.716

> > aest: OSPF: xxx.xxx.76.248 address xxx.xxx.66.62 on

> > Port-channel1.87 is dead, state DOWNNov 12 10:12:48.716

> > aest: %OSPF-5-ADJCHG: Process 100, Nbr xxx.xxx.76.248 on

> > Port-channel1.87 from FULL to DOWN, Neighbor Down: Dead

> > timer expiredNov 12 10:12:48.716 aest: OSPF: Neighbor change

> > Event on interface Port-channel1.87Nov 12 10:12:48.716 aest:

> > OSPF: DR/BDR election on Port-channel1.87 Nov 12

> > 10:12:48.716 aest: OSPF: Elect BDR xxx.xxx.76.238Nov 12

> > 10:12:48.716 aest: OSPF: Elect DR xxx.xxx.76.238Nov 12

> > 10:12:48.716 aest: OSPF: Elect BDR 0.0.0.0Nov 12

> > 10:12:48.716 aest: OSPF: Elect DR xxx.xxx.76.238Nov 12

> > 10:12:48.716 aest:        DR:

> > xxx.xxx.76.238 (Id)   BDR: none Nov 12

> > 10:12:48.716 aest: OSPF: Reset Port-channel1.87 flush

> > timerNov 12 10:12:48.716 aest: OSPF: Remember old DR

> > xxx.xxx.76.248 (id)Nov 12 10:12:49.216 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12!

> >  :4!

> > >  9.216 aest: OSPF: Send with youngest Key 10Nov

> > 12 10:12:49.216 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:49.216 aest: OSPF: Build router LSA for area 0.0.0.0,

> > router ID xxx.xxx.76.238, seq 0x80014360, process 100Nov 12

> > 10:12:49.216 aest: OSPF: No full nbrs to build Net Lsa for

> > interface Port-channel1.87Nov 12 10:12:51.716 aest: OSPF:

> > Send with youngest Key 10Nov 12 10:12:51.732 aest: OSPF:

> > Send with youngest Key 10Nov 12 10:12:58.432 aest: OSPF:

> > Send with youngest Key 10Nov 12 10:12:58.432 aest: OSPF:

> > Send with youngest Key 10Nov 12 10:12:58.432 aest: OSPF:

> > Send with youngest Key 10Nov 12 10:12:58.432 aest: OSPF:

> > Send with youngest Key 10Nov 12 10:12:58.448 aest: OSPF: 2

> > Way Communication to xxx.xxx.76.248 on Port-channel1.87,

> > state 2WAYNov 12 10:12:58.448 aest: OSPF: Neighbor change

> > Event on interface Port-channel1.87Nov 12 10:12:58.448 aest:

> > OSPF: DR/BDR election on Port-channel1.87 Nov 12

> > 10:12:58.448 aest: OSPF: Elect BDR 0.0.0.0Nov 12

> > 10:12:58.448 aest: OSPF:!

> >   E!

> > >  lect DR xxx.xxx.76.248Nov 12 10:12:58.448 aest:

> > OSPF: Elect BDR xxx.xxx.76.238Nov 12 10:12:58.448 aest:

> > OSPF: Elect DR xxx.xxx.76.248Nov 12 10:12:58.448 aest:

> >       DR: xxx.xxx.76.248

> > (Id)   BDR: xxx.xxx.76.238 (Id)Nov 12

> > 10:12:58.448 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0x1717 opt 0x52 flag 0x7 len 32Nov 12

> > 10:12:58.448 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.448 aest: OSPF: Set Port-channel1.87 flush timerNov

> > 12 10:12:58.448 aest: OSPF: Remember old DR xxx.xxx.76.238

> > (id)Nov 12 10:12:58.448 aest: OSPF: Neighbor change Event on

> > interface Port-channel1.87Nov 12 10:12:58.448 aest: OSPF:

> > DR/BDR election on Port-channel1.87 Nov 12 10:12:58.448

> > aest: OSPF: Elect BDR xxx.xxx.76.238Nov 12 10:12:58.448

> > aest: OSPF: Elect DR xxx.xxx.76.248Nov 12 10:12:58.448

> > aest:        DR: xxx.xxx.76.248

> > (Id)   BDR: xxx.xxx.76.238 (Id)Nov 12

> > 10:12:58.464 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB50 opt 0x52 flag 0x7 len 32

> > mtu 150!

> >  0 state EXSTARTNov 12 10:12:58.464 aest: OSPF: NBR

> > Negotiation Done. We a!

> > >  re the SLAVENov 12 10:12:58.464 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB50 opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.464 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.484 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB51 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.484 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB51 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.484 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.500 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB52 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.500 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB52 opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.500 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.520 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB53 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.520 aest: OSPF: Sen!

> >  d !

> > >  DBD to xxx.xxx.76.248 on Port-channel1.87 seq

> > 0xB53 opt 0x52 flag 0x2 len 1412Nov 12 10:12:58.520 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.536 aest:

> > OSPF: Rcv DBD from xxx.xxx.76.248 on Port-channel1.87 seq

> > 0xB54 opt 0x52 flag 0x3 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:58.536 aest: OSPF: Send DBD to

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB54 opt 0x52 flag

> > 0x2 len 1412Nov 12 10:12:58.536 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.552 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB55 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.552 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB55 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.552 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.572 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB56 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.572 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0!

> >  xB56 opt 0x52 flag 0x2 len 1412Nov 12 10:12:58.572 aest:

> > OSPF: Send with !

> > >  youngest Key 10Nov 12 10:12:58.588 aest: OSPF:

> > Rcv DBD from xxx.xxx.76.248 on Port-channel1.87 seq 0xB57

> > opt 0x52 flag 0x3 len 1412  mtu 1500 state EXCHANGENov

> > 12 10:12:58.588 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB57 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.588 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.604 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB58 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.604 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB58 opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.604 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.624 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB59 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.624 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB59 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.624 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.640 aest: OSPF: !

> >  Rc!

> > >  v DBD from xxx.xxx.76.248 on Port-channel1.87

> > seq 0xB5A opt 0x52 flag 0x3 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:58.640 aest: OSPF: Send DBD to

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB5A opt 0x52 flag

> > 0x2 len 1412Nov 12 10:12:58.640 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.656 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB5B opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.656 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5B opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.656 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.676 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5C opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.676 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB5C opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.676 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.692 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 s!

> >  eq 0xB5D opt 0x52 flag 0x3 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:!

> > >  58.692 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5D opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.692 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.708 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5E opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.708 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB5E opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.708 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.728 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB5F opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.728 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5F opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.728 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.744 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB60 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.744 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 o!

> >  n !

> > >  Port-channel1.87 seq 0xB60 opt 0x52 flag 0x2 len

> > 1412Nov 12 10:12:58.744 aest: OSPF: Send with youngest Key

> > 10Nov 12 10:12:58.760 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB61 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.760 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB61 opt 0x52 flag 0x2 len 92Nov 12

> > 10:12:58.760 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.776 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB62 opt 0x52 flag 0x1 len 92

> > mtu 1500 state EXCHANGENov 12 10:12:58.776 aest: OSPF:

> > Exchange Done with xxx.xxx.76.248 on Port-channel1.87Nov 12

> > 10:12:58.776 aest: OSPF: Synchronized with xxx.xxx.76.248 on

> > Port-channel1.87, state FULLNov 12 10:12:58.776 aest:

> > %OSPF-5-ADJCHG: Process 100, Nbr xxx.xxx.76.248 on

> > Port-channel1.87 from LOADING to FULL, Loading DoneNov 12

> > 10:12:58.776 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB62 opt 0x52 flag 0x0 len 32Nov !

> >  12 10:12:58.780 aest: OSPF: Send with youngest Key 10Nov

> > 12 10:12:58.948 !

> > >  aest: OSPF: Reset old DR on Port-channel1.87

> > >

> > >

> > > R2 logs:

> > > Nov 12 10:12:58.436 AEST: OSPF: Cannot see ourself in

> > hello from xxx.xxx.76.238 on Port-channel1.87, state INITNov

> > 12 10:12:58.436 AEST: OSPF: Neighbor change Event on

> > interface Port-channel1.87Nov 12 10:12:58.436 AEST: OSPF:

> > DR/BDR election on Port-channel1.87 Nov 12 10:12:58.436

> > AEST: OSPF: Elect BDR 0.0.0.0Nov 12 10:12:58.436 AEST: OSPF:

> > Elect DR xxx.xxx.76.248Nov 12 10:12:58.436 AEST:

> >       DR: xxx.xxx.76.248

> > (Id)   BDR: none Nov 12 10:12:58.436 AEST:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.452 AEST:

> > OSPF: Rcv DBD from xxx.xxx.76.238 on Port-channel1.87 seq

> > 0x1717 opt 0x52 flag 0x7 len 32  mtu 1500 state INITNov

> > 12 10:12:58.452 AEST: OSPF: 2 Way Communication to

> > xxx.xxx.76.238 on Port-channel1.87, state 2WAYNov 12

> > 10:12:58.452 AEST: OSPF: Neighbor change Event on interface

> > Port-channel1.87Nov 12 10:12:58.452 AEST: OSPF: DR/BDR

> > election on Port-channel1.87 Nov 12 10:12:58.452 AEST: OSPF:

> > Elect BDR xxx.xxx.76.238Nov 12 10:12:58.452 AEST: OSPF:

> > Elect DR xxx.xxx.76!

> >  .2!

> > >  48Nov 12 10:12:58.452 AEST:

> >   DR: xxx.xxx.76.248 (Id)   BDR:

> > xxx.xxx.76.238 (Id)Nov 12 10:12:58.452 AEST: OSPF:

> > Port-channel1.87 Nbr xxx.xxx.76.238: Prepare dbase

> > exchangeNov 12 10:12:58.452 AEST: OSPF: Send DBD to

> > xxx.xxx.76.238 on Port-channel1.87 seq 0xB50 opt 0x52 flag

> > 0x7 len 32Nov 12 10:12:58.452 AEST: OSPF: Send with youngest

> > Key 10Nov 12 10:12:58.452 AEST: OSPF: First DBD and we are

> > not SLAVENov 12 10:12:58.472 AEST: OSPF: Rcv DBD from

> > xxx.xxx.76.238 on Port-channel1.87 seq 0xB50 opt 0x52 flag

> > 0x2 len 1412  mtu 1500 state EXSTARTNov 12 10:12:58.472

> > AEST: OSPF: NBR Negotiation Done. We are the MASTERNov 12

> > 10:12:58.472 AEST: OSPF: Port-channel1.87 Nbr

> > xxx.xxx.76.238: Summary list built, size 1176Nov 12

> > 10:12:58.472 AEST: OSPF: Send DBD to xxx.xxx.76.238 on

> > Port-channel1.87 seq 0xB51 opt 0x52 flag 0x3 len 1412Nov 12

> > 10:12:58.472 AEST: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.488 AEST: OSPF: Rcv DBD from xxx.xxx.76.238 on

> > Port-channel1.87 seq 0xB51 opt 0x5!

> >  2 !

> > >  flag 0x2 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:58.488 AEST: OSPF: Send DBD to

> > xxx.xxx.76.238 on Port-channel1.87 seq 0xB52 opt 0x52 flag

> > 0x3 len 1412

> > >

> > > Any assistance is greatly appreciated.

> > > Cheers

> > >

> > >

> > > > From: johnelliot67 at hotmail.com

> > > > To: cisco-nsp at puck.nether.net

> > > > Date: Sat, 12 Nov 2011 11:30:45 +1100

> > > > Subject: [c-nsp] OSPF issue

> > > >

> > > >

> > > > OSPF Issue

> > > > Hope someone can assist with an ospf problem - We

> > have an existing ospf adj running fine between R1+R2, we

> > have just provisioned a second link, enabled ospf and we see

> > it form adjacency which lasts ~60seconds, then R1 sees R2 as

> > dead, and R2 Cannot see ourself in hello from R1, and then

> > the whole thing starts again.

> > > >

> > > > With both adj. up(From R1):

> > > > Neighbor ID

> >    Pri   State

> >        Dead

> > Time   Address

> >    Interfacexxx.xxx.76.248

> > 1   FULL/DR

> >    00:00:00

> > xxx.xxx.66.62   Port-channel1.87xxx.xxx.76.248

> >   1   FULL/DR

> >    00:00:39    xxx.xxx.66.2

> >   FastEthernet3/0

> > > >

> > > > Then "new" link loses adj. after ~60seconds

> > > > Neighbor ID

> >    Pri   State

> >        Dead

> > Time   Address

> >    Interfacexxx.xxx.76.248

> > 1   FULL/DR

> >    00:00:38    xxx.xxx.66.2

> >   FastEthernet3/0

> > > >

> > > > NB - pings to/from both R1+R2 are clean(No

> > loss/excessive latency), and both ends(Ints) set to mtu of

> > 1500.

> > > >

> > > > R1 logs

> > > >

> > > > Nov 12 10:12:48.716 aest: OSPF: xxx.xxx.76.248

> > address xxx.xxx.66.62 on Port-channel1.87 is deadNov 12

> > 10:12:48.716 aest: OSPF: xxx.xxx.76.248 address

> > xxx.xxx.66.62 on Port-channel1.87 is dead, state DOWNNov 12

> > 10:12:48.716 aest: %OSPF-5-ADJCHG: Process 100, Nbr

> > xxx.xxx.76.248 on Port-channel1.87 from FULL to DOWN,

> > Neighbor Down: Dead timer expiredNov 12 10:12:48.716 aest:

> > OSPF: Neighbor change Event on interface Port-channel1.87Nov

> > 12 10:12:48.716 aest: OSPF: DR/BDR election on

> > Port-channel1.87 Nov 12 10:12:48.716 aest: OSPF: Elect BDR

> > xxx.xxx.76.238Nov 12 10:12:48.716 aest: OSPF: Elect DR

> > xxx.xxx.76.238Nov 12 10:12:48.716 aest: OSPF: Elect BDR

> > 0.0.0.0Nov 12 10:12:48.716 aest: OSPF: Elect DR

> > xxx.xxx.76.238Nov 12 10:12:48.716 aest:

> >   DR: xxx.xxx.76.238 (Id)   BDR: none

> > Nov 12 10:12:48.716 aest: OSPF: Reset Port-channel1.87 flush

> > timerNov 12 10:12:48.716 aest: OSPF: Remember old DR

> > xxx.xxx.76.248 (id)Nov 12 10:12:49.216 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:!

> >  12!

> > >  :4!

> > > >  9.216 aest: OSPF: Send with youngest Key

> > 10Nov 12 10:12:49.216 aest: OSPF: Send with youngest Key

> > 10Nov 12 10:12:49.216 aest: OSPF: Build router LSA for area

> > 0.0.0.0, router ID xxx.xxx.76.238, seq 0x80014360, process

> > 100Nov 12 10:12:49.216 aest: OSPF: No full nbrs to build Net

> > Lsa for interface Port-channel1.87Nov 12 10:12:51.716 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:51.732 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.432 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.432 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.432 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.432 aest:

> > OSPF: Send with youngest Key 10Nov 12 10:12:58.448 aest:

> > OSPF: 2 Way Communication to xxx.xxx.76.248 on

> > Port-channel1.87, state 2WAYNov 12 10:12:58.448 aest: OSPF:

> > Neighbor change Event on interface Port-channel1.87Nov 12

> > 10:12:58.448 aest: OSPF: DR/BDR election on Port-channel1.87

> > Nov 12 10:12:58.448 aest: OSPF: Elect BDR 0.0.0.0Nov 12

> > 10:12:58.448 aest: OSP!

> >  F:!

> > >   E!

> > > >  lect DR xxx.xxx.76.248Nov 12 10:12:58.448

> > aest: OSPF: Elect BDR xxx.xxx.76.238Nov 12 10:12:58.448

> > aest: OSPF: Elect DR xxx.xxx.76.248Nov 12 10:12:58.448

> > aest:        DR: xxx.xxx.76.248

> > (Id)   BDR: xxx.xxx.76.238 (Id)Nov 12

> > 10:12:58.448 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0x1717 opt 0x52 flag 0x7 len 32Nov 12

> > 10:12:58.448 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.448 aest: OSPF: Set Port-channel1.87 flush timerNov

> > 12 10:12:58.448 aest: OSPF: Remember old DR xxx.xxx.76.238

> > (id)Nov 12 10:12:58.448 aest: OSPF: Neighbor change Event on

> > interface Port-channel1.87Nov 12 10:12:58.448 aest: OSPF:

> > DR/BDR election on Port-channel1.87 Nov 12 10:12:58.448

> > aest: OSPF: Elect BDR xxx.xxx.76.238Nov 12 10:12:58.448

> > aest: OSPF: Elect DR xxx.xxx.76.248Nov 12 10:12:58.448

> > aest:        DR: xxx.xxx.76.248

> > (Id)   BDR: xxx.xxx.76.238 (Id)Nov 12

> > 10:12:58.464 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB50 opt 0x52 flag 0x7 len 32

> > mtu 1!

> >  50!

> > >  0 state EXSTARTNov 12 10:12:58.464 aest: OSPF:

> > NBR Negotiation Done. We a!

> > > >  re the SLAVENov 12 10:12:58.464 aest: OSPF:

> > Send DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB50 opt

> > 0x52 flag 0x2 len 1412Nov 12 10:12:58.464 aest: OSPF: Send

> > with youngest Key 10Nov 12 10:12:58.484 aest: OSPF: Rcv DBD

> > from xxx.xxx.76.248 on Port-channel1.87 seq 0xB51 opt 0x52

> > flag 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.484 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB51 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.484 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.500 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB52 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.500 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB52 opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.500 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.520 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB53 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.520 aest: OSPF: S!

> >  en!

> > >  d !

> > > >  DBD to xxx.xxx.76.248 on Port-channel1.87

> > seq 0xB53 opt 0x52 flag 0x2 len 1412Nov 12 10:12:58.520

> > aest: OSPF: Send with youngest Key 10Nov 12 10:12:58.536

> > aest: OSPF: Rcv DBD from xxx.xxx.76.248 on Port-channel1.87

> > seq 0xB54 opt 0x52 flag 0x3 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:58.536 aest: OSPF: Send DBD to

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB54 opt 0x52 flag

> > 0x2 len 1412Nov 12 10:12:58.536 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.552 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB55 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.552 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB55 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.552 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.572 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB56 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.572 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq!

> >   0!

> > >  xB56 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.572 aest: OSPF: Send with !

> > > >  youngest Key 10Nov 12 10:12:58.588 aest:

> > OSPF: Rcv DBD from xxx.xxx.76.248 on Port-channel1.87 seq

> > 0xB57 opt 0x52 flag 0x3 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:58.588 aest: OSPF: Send DBD to

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB57 opt 0x52 flag

> > 0x2 len 1412Nov 12 10:12:58.588 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.604 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB58 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.604 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB58 opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.604 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.624 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB59 opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.624 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB59 opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.624 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.640 aest: OSPF!

> >  : !

> > >  Rc!

> > > >  v DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5A opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.640 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB5A opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.640 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.656 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB5B opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.656 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5B opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.656 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.676 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5C opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.676 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB5C opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.676 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.692 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87!

> >   s!

> > >  eq 0xB5D opt 0x52 flag 0x3 len 1412  mtu

> > 1500 state EXCHANGENov 12 10:12:!

> > > >  58.692 aest: OSPF: Send DBD to

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB5D opt 0x52 flag

> > 0x2 len 1412Nov 12 10:12:58.692 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.708 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB5E opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.708 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5E opt 0x52 flag 0x2 len 1412Nov 12

> > 10:12:58.708 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.728 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB5F opt 0x52 flag 0x3 len 1412

> > mtu 1500 state EXCHANGENov 12 10:12:58.728 aest: OSPF: Send

> > DBD to xxx.xxx.76.248 on Port-channel1.87 seq 0xB5F opt 0x52

> > flag 0x2 len 1412Nov 12 10:12:58.728 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.744 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB60 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.744 aest: OSPF: Send DBD to xxx.xxx.76.248!

> >   o!

> > >  n !

> > > >  Port-channel1.87 seq 0xB60 opt 0x52 flag

> > 0x2 len 1412Nov 12 10:12:58.744 aest: OSPF: Send with

> > youngest Key 10Nov 12 10:12:58.760 aest: OSPF: Rcv DBD from

> > xxx.xxx.76.248 on Port-channel1.87 seq 0xB61 opt 0x52 flag

> > 0x3 len 1412  mtu 1500 state EXCHANGENov 12

> > 10:12:58.760 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB61 opt 0x52 flag 0x2 len 92Nov 12

> > 10:12:58.760 aest: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.776 aest: OSPF: Rcv DBD from xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB62 opt 0x52 flag 0x1 len 92

> > mtu 1500 state EXCHANGENov 12 10:12:58.776 aest: OSPF:

> > Exchange Done with xxx.xxx.76.248 on Port-channel1.87Nov 12

> > 10:12:58.776 aest: OSPF: Synchronized with xxx.xxx.76.248 on

> > Port-channel1.87, state FULLNov 12 10:12:58.776 aest:

> > %OSPF-5-ADJCHG: Process 100, Nbr xxx.xxx.76.248 on

> > Port-channel1.87 from LOADING to FULL, Loading DoneNov 12

> > 10:12:58.776 aest: OSPF: Send DBD to xxx.xxx.76.248 on

> > Port-channel1.87 seq 0xB62 opt 0x52 flag 0x0 len 32No!

> >  v !

> > >  12 10:12:58.780 aest: OSPF: Send with youngest

> > Key 10Nov 12 10:12:58.948 !

> > > >  aest: OSPF: Reset old DR on

> > Port-channel1.87

> > > >

> > > >

> > > >

> > > > R2 logs:

> > > >

> > > > Nov 12 10:12:58.436 AEST: OSPF: Cannot see

> > ourself in hello from xxx.xxx.76.238 on Port-channel1.87,

> > state INITNov 12 10:12:58.436 AEST: OSPF: Neighbor change

> > Event on interface Port-channel1.87Nov 12 10:12:58.436 AEST:

> > OSPF: DR/BDR election on Port-channel1.87 Nov 12

> > 10:12:58.436 AEST: OSPF: Elect BDR 0.0.0.0Nov 12

> > 10:12:58.436 AEST: OSPF: Elect DR xxx.xxx.76.248Nov 12

> > 10:12:58.436 AEST:        DR:

> > xxx.xxx.76.248 (Id)   BDR: none Nov 12

> > 10:12:58.436 AEST: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.452 AEST: OSPF: Rcv DBD from xxx.xxx.76.238 on

> > Port-channel1.87 seq 0x1717 opt 0x52 flag 0x7 len 32

> > mtu 1500 state INITNov 12 10:12:58.452 AEST: OSPF: 2 Way

> > Communication to xxx.xxx.76.238 on Port-channel1.87, state

> > 2WAYNov 12 10:12:58.452 AEST: OSPF: Neighbor change Event on

> > interface Port-channel1.87Nov 12 10:12:58.452 AEST: OSPF:

> > DR/BDR election on Port-channel1.87 Nov 12 10:12:58.452

> > AEST: OSPF: Elect BDR xxx.xxx.76.238Nov 12 10:12:58.452

> > AEST: OSPF: Elect DR xxx.xxx.!

> >  76!

> > >  .2!

> > > >  48Nov 12 10:12:58.452 AEST:

> >     DR: xxx.xxx.76.248 (Id)   BDR:

> > xxx.xxx.76.238 (Id)Nov 12 10:12:58.452 AEST: OSPF:

> > Port-channel1.87 Nbr xxx.xxx.76.238: Prepare dbase

> > exchangeNov 12 10:12:58.452 AEST: OSPF: Send DBD to

> > xxx.xxx.76.238 on Port-channel1.87 seq 0xB50 opt 0x52 flag

> > 0x7 len 32Nov 12 10:12:58.452 AEST: OSPF: Send with youngest

> > Key 10Nov 12 10:12:58.452 AEST: OSPF: First DBD and we are

> > not SLAVENov 12 10:12:58.472 AEST: OSPF: Rcv DBD from

> > xxx.xxx.76.238 on Port-channel1.87 seq 0xB50 opt 0x52 flag

> > 0x2 len 1412  mtu 1500 state EXSTARTNov 12 10:12:58.472

> > AEST: OSPF: NBR Negotiation Done. We are the MASTERNov 12

> > 10:12:58.472 AEST: OSPF: Port-channel1.87 Nbr

> > xxx.xxx.76.238: Summary list built, size 1176Nov 12

> > 10:12:58.472 AEST: OSPF: Send DBD to xxx.xxx.76.238 on

> > Port-channel1.87 seq 0xB51 opt 0x52 flag 0x3 len 1412Nov 12

> > 10:12:58.472 AEST: OSPF: Send with youngest Key 10Nov 12

> > 10:12:58.488 AEST: OSPF: Rcv DBD from xxx.xxx.76.238 on

> > Port-channel1.87 seq 0xB51 opt 0!

> >  x5!

> > >  2 !

> > > >  flag 0x2 len 1412  mtu 1500 state

> > EXCHANGENov 12 10:12:58.488 AEST: OSPF: Send DBD to

> > xxx.xxx.76.238 on Port-channel1.87 seq 0xB52 opt 0x52 flag

> > 0x3 len 1412

> > > >

> > > >

> > > > Any assistance is greatly appreciated.

> > > >

> > > > Cheers

> > > >

> >

> >

> >

> > > > _______________________________________________

> > > > cisco-nsp mailing list  cisco-nsp at puck.nether.net

> > > > https://puck.nether.net/mailman/listinfo/cisco-nsp

> > > > archive at http://puck.nether.net/pipermail/cisco-nsp/

> > >

> >

> >

> >

> > > _______________________________________________

> > > cisco-nsp mailing list  cisco-nsp at puck.nether.net

> > > https://puck.nether.net/mailman/listinfo/cisco-nsp

> > > archive at http://puck.nether.net/pipermail/cisco-nsp/

> >

> >

> >

> >

> > _______________________________________________

> > cisco-nsp mailing list  cisco-nsp at puck.nether.net

> > https://puck.nether.net/mailman/listinfo/cisco-nsp

> > archive at http://puck.nether.net/pipermail/cisco-nsp/

> >



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