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[nsp] OSPF Network Type Mismatch
Hi!
When an OSPF interface is enabled, it identifies itself as being an interface of a certain network type: Broadcast if it is connected to a fast ethernet or ethernet, point-to-point if it is E-1, but, "sh ip ospf interface" shows:
FastEthernet11/1 is up, line protocol is up
Internet Address X.X.29.129/30, Area 0
Process ID 8888, Router ID X.X.0.133, Network Type POINT_TO_POINT, Cost: 1
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:09
Index 5/5, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 40
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor X.X.0.134
Suppress hello for 0 neighbor(s)

Why it shows the network type "POINT-TO-POINT" instead of "BROADCAST"??What changes the network type?I'll appreciate any idea.

Birsen
Re: [nsp] OSPF Network Type Mismatch [ In reply to ]
Birsen -

What is the interface configuration ?
It might have been configured with 'ip ospf network point-to-point'
on the interface.

Thanks,

/Shankar

At 10:42am 07/29/02 +0300, Birsen Ozturk wrote:
> Hi!
> When an OSPF interface is enabled, it identifies itself as being an interface of a certain network type: Broadcast if it is connected to a fast ethernet or ethernet, point-to-point if it is E-1, but, "sh ip ospf interface" shows:
> FastEthernet11/1 is up, line protocol is up
> Internet Address X.X.29.129/30, Area 0
> Process ID 8888, Router ID X.X.0.133, Network Type POINT_TO_POINT, Cost: 1
> Transmit Delay is 1 sec, State POINT_TO_POINT,
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> Hello due in 00:00:09
> Index 5/5, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 1, maximum is 40
> Last flood scan time is 0 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor X.X.0.134
> Suppress hello for 0 neighbor(s)
>
> Why it shows the network type "POINT-TO-POINT" instead of "BROADCAST"??What changes the network type?I'll appreciate any idea.
>
> Birsen
>
>
> _______________________________________________
> cisco-nsp mailing list real_name)s@puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
RE: [nsp] OSPF Network Type Mismatch [ In reply to ]
What does your ospf config look like under the faste 11/1 interface?

-----Original Message-----
From: cisco-nsp-admin@puck.nether.net
[mailto:cisco-nsp-admin@puck.nether.net] On Behalf Of Birsen Ozturk
Sent: Monday, July 29, 2002 2:42 AM
To: cisco-nsp@puck.nether.net
Subject: [nsp] OSPF Network Type Mismatch


Hi!
When an OSPF interface is enabled, it identifies itself as being an
interface of a certain network type: Broadcast if it is connected to a
fast ethernet or ethernet, point-to-point if it is E-1, but, "sh ip ospf
interface" shows: FastEthernet11/1 is up, line protocol is up
Internet Address X.X.29.129/30, Area 0
Process ID 8888, Router ID X.X.0.133, Network Type POINT_TO_POINT,
Cost: 1
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:09
Index 5/5, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 40
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor X.X.0.134
Suppress hello for 0 neighbor(s)

Why it shows the network type "POINT-TO-POINT" instead of
"BROADCAST"??What changes the network type?I'll appreciate any idea.

Birsen


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Re: [nsp] OSPF Network Type Mismatch [ In reply to ]
The mask shows that it _is_ a point to point link ( /30 bit mask ) ... If it is configured with a longer mask is will revert to bcast.


On Mon, Jul 29, 2002 at 10:42:10AM +0300, Birsen Ozturk wrote:
> Hi!
> When an OSPF interface is enabled, it identifies itself as being an interface of a certain network type: Broadcast if it is connected to a fast ethernet or ethernet, point-to-point if it is E-1, but, "sh ip ospf interface" shows:
> FastEthernet11/1 is up, line protocol is up
> Internet Address X.X.29.129/30, Area 0
> Process ID 8888, Router ID X.X.0.133, Network Type POINT_TO_POINT, Cost: 1
> Transmit Delay is 1 sec, State POINT_TO_POINT,
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> Hello due in 00:00:09
> Index 5/5, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 1, maximum is 40
> Last flood scan time is 0 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor X.X.0.134
> Suppress hello for 0 neighbor(s)
>
> Why it shows the network type "POINT-TO-POINT" instead of "BROADCAST"??What changes the network type?I'll appreciate any idea.
>
> Birsen
>
>
> _______________________________________________
> cisco-nsp mailing list real_name)s@puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
RE: [nsp] OSPF Network Type Mismatch [ In reply to ]
ip os net [broadcast|point-to-point|point-to-multipoint]

Seems that you are on a broadcast medium. Why is it coming up as p-t-p?

==DMT>

> -----Original Message-----
> From: Shankar Vemulapalli [mailto:svemulap@cisco.com]
> Sent: Thursday, August 01, 2002 2:09 PM
> To: Birsen Ozturk
> Cc: cisco-nsp@puck.nether.net
> Subject: Re: [nsp] OSPF Network Type Mismatch
>
>
> Birsen -
>
> What is the interface configuration ?
> It might have been configured with 'ip ospf network point-to-point'
> on the interface.
>
> Thanks,
>
> /Shankar
>
> At 10:42am 07/29/02 +0300, Birsen Ozturk wrote:
> > Hi!
> > When an OSPF interface is enabled, it identifies itself as
> being an interface of a certain network type: Broadcast if it
> is connected to a fast ethernet or ethernet, point-to-point
> if it is E-1, but, "sh ip ospf interface" shows:
> > FastEthernet11/1 is up, line protocol is up
> > Internet Address X.X.29.129/30, Area 0
> > Process ID 8888, Router ID X.X.0.133, Network Type
> POINT_TO_POINT, Cost: 1
> > Transmit Delay is 1 sec, State POINT_TO_POINT,
> > Timer intervals configured, Hello 10, Dead 40, Wait 40,
> Retransmit 5
> > Hello due in 00:00:09
> > Index 5/5, flood queue length 0
> > Next 0x0(0)/0x0(0)
> > Last flood scan length is 1, maximum is 40
> > Last flood scan time is 0 msec, maximum is 4 msec
> > Neighbor Count is 1, Adjacent neighbor count is 1
> > Adjacent with neighbor X.X.0.134
> > Suppress hello for 0 neighbor(s)
> >
> > Why it shows the network type "POINT-TO-POINT" instead of
> "BROADCAST"??What changes the network type?I'll appreciate any idea.
> >
> > Birsen
> >
> >
> > _______________________________________________
> > cisco-nsp mailing list real_name)s@puck.nether.net
> > http://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
>
> _______________________________________________
> cisco-nsp mailing list real_name)s@puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>