> Of course, the other statistics Phil mentions would be going up dramatically
> along with the deferred packets if this is your situation...
>
> Dale
> [=`)
>
> >From: Phil Barker <[EMAIL PROTECTED]>
> >Reply-To: Phil Barker <[EMAIL PROTECTED]>
> >To: N
;
>Reply-To: Phil Barker <[EMAIL PROTECTED]>
>To: Nodir Nazarov <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
>Subject: Re: deferred packets on eth on C7206vxr
>Date: Thu, 31 Aug 2000 18:12:34 +0100 (BST)
>
>Nodir,
>
>Deferred Packets isn't necessarily a fault.
>
Nodir,
Deferred Packets isn't necessarily a fault.
Presumably the ethernet interface is set to half
duplex ? In which case collisions are are normal
everyday event.
Deferred in this instance is just saying I cannot send
just now because something else is
happening/colliding/jabbing etc.
Dropped
Even if I have 2 routers only crossed over on ethernet cable ? Or, should I
have full duplex enabled to avoid deferred packets ?
Nodir
Bosio Stefano wrote:
> Deffered packet is normal on a CSMA/CD network like ethernet.
> When packet must be trasmitted out on a ethernet interface the carrier a
Deffered packet is normal on a CSMA/CD network like ethernet.
When packet must be trasmitted out on a ethernet interface the carrier are
sensed if it is busy the interface wait to send (deffer), the deffered
packet counter are incremented by 1, after a random time the interface
recheck for carrie
ong,
David'" <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
cc:(bcc: harora)
Subject: RE: Deferred Packets
On Dec 9, 7:30am, "Ruslan S Tchinyakov" wrote:
}
} Packets are counted to be deferred are due to
} 15 successive collisions to happen after first send attempt-
}
On Dec 9, 6:25am, Priscilla Oppenheimer wrote:
}
} This means that it's kind of a useless statistic since deferring because
} the medium is already in use is absolutely normal on a shared and/or
} half-duplex Ethernet. The threshold where it would be considered abnormal
I don't know if
On Dec 9, 7:30am, "Ruslan S Tchinyakov" wrote:
}
} Packets are counted to be deferred are due to
} 15 successive collisions to happen after first send attempt-
} the CSMA/CD algorythm version used propose the cut of the back off
The first two letters here stand for "Carrier Sense". That me
On Nov 3, 10:39am, Erick wrote:
} Subject: Re: Deferred Packets
} >
} > } Defered packets occur when the ethernet is too
} > busy
} > } and the interface can't put the packet out on the
} > } wire, so the packet is dropped. This is normal. I
} >
} > Bzzt, wrong!
At 12:54 PM 7/19/00, Ruslan S Tchinyakov wrote:
>Packets are counted to be deferred are due to
>15 successive collisions to happen after first send attempt-
>the CSMA/CD algorythm version used propose the cut of the back off
>algorythm on the 16th attempt (first 10 attempts the timeout (ralli- the
, CCDP, MCSE
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
John Nemeth
Sent: Wednesday, July 19, 2000 5:52 AM
To: Erick; Luong, David; [EMAIL PROTECTED]
Subject: Re: Deferred Packets
On Nov 3, 5:28am, Erick wrote:
}
} > On a 10-half ethernet connect
>
> } Defered packets occur when the ethernet is too
> busy
> } and the interface can't put the packet out on the
> } wire, so the packet is dropped. This is normal. I
>
> Bzzt, wrong! The packet isn't dropped, it's
> held and transmitted when the wire is free.
My mistake. I would argue t
On Nov 3, 5:28am, Erick wrote:
}
} > On a 10-half ethernet connection between two
} > routers, we are seeing deferred
} > packets happening as well as the normal usual
} > collisions. Are deferred
} > packets just normal as well? Is it expected in
} > ethernet media? Thanks in
Yes, it is no
Defered packets occur when the ethernet is too busy
and the interface can't put the packet out on the
wire, so the packet is dropped. This is normal. I
would throw a sniffer on this segment and see whats
going on and try to clean it up.
--- "Luong, David" <[EMAIL PROTECTED]> wrote:
> Hi Folks:
>
CTED]
> > Government Micro Resources
> > Network Operations Control Center
> > Bldg 33 NAVSEA NCOE
> > 757-393-9526
> >
> >
> >
> > -Original Message-
> > From: Luong, David [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, July 17, 2000
I don't mean to be picky, but 802.11 is not wireless Ethernet. The press
sometimes calls it that, but the spec does not. Since it uses CSMA/CA I
would say it is definitely not Ethernet. ;-)
I'm glad you brought up this very cool technology, though. I use it, by the
way, and am very happy with
(Brad) CONT NNSY; 'Luong, David'; 'Cisco Group
Study'
Subject: RE: Deferred Packets
Can you guys tell me what is the difference between CD
and CA? Detection and Avoidance?
Thanks
Kent
--- "Stanfield Hilman B(Brad) CONT NNSY"
<[EMAIL PROTECTED]> wrote:
> 80
Control Center
> Bldg 33 NAVSEA NCOE
> 757-393-9526
>
>
>
> -Original Message-
> From: Luong, David [mailto:[EMAIL PROTECTED]]
> Sent: Monday, July 17, 2000 5:19 PM
> To: '[EMAIL PROTECTED]'; 'Cisco Group Study'
> Subject: RE: Deferred Packets
>
]
Government Micro Resources
Network Operations Control Center
Bldg 33 NAVSEA NCOE
757-393-9526
-Original Message-
From: Luong, David [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 17, 2000 5:19 PM
To: '[EMAIL PROTECTED]'; 'Cisco Group Study'
Subject: RE: Deferred Packe
Ethernet uses CSMA/CD
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Stylen
> Sent: Monday, July 17, 2000 9:15 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Deferred Packets
>
>
> no, ethernet is always CSMA/CD. I bel
Monday, July 17, 2000 4:19 PM
>To: '[EMAIL PROTECTED]'; 'Cisco Group Study'
>Subject:RE: Deferred Packets
>
>Further to your response, a fellow co-worker of mind has mentioned that
>ethernet used CSMA/CD 802.3 instead of CA? Is it possible for ethernet media
Ethernet uses CSMA/CD, Appletalk uses CSMA/CA (Collision Avoidance). Hope
this helps.
David
-Original Message-
From: Luong, David [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 17, 2000 4:19 PM
To: '[EMAIL PROTECTED]'; 'Cisco Group Study'
Subject:
gt;-Original Message-
> >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> >Sent: Monday, July 17, 2000 12:40 PM
> >To: Luong, David
> >Subject: Re: Deferred Packets
> >
> >
> >
> >
> >Deferred packets are a normal part of an ethernet tran
ed CSMA/CD 802.3 instead of CA? Is it possible for ethernet
media
>to deploy both? I have not come across this beforeany takers out there?
>
>Dave.
>
>-Original Message-
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>Sent: Monday, July 17, 2000 12:40 PM
>
:[EMAIL PROTECTED]]
Sent: Monday, July 17, 2000 12:40 PM
To: Luong, David
Subject: Re: Deferred Packets
Deferred packets are a normal part of an ethernet transmission.
If multiple hosts attempt to transmit over the same ethernet media at the
same
time, a collision occurs. After a specified period of
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