Re: QS: FIB and RIB: what is the difference

What the %#$@&

What did i do wrong now?
hahahahaha, what ever it is you guys are smoking, please share so we also
know what you are talking about.

On Fri, Sep 25, 2009 at 4:07 PM, Salah ElShekeil
<salah.elshekeil_at_gmail.com>wrote:

> Unbelievable!!!!
>
> On Sat, Sep 26, 2009 at 12:57 AM, Johnny B CCIE <jbccie_at_gmail.com>wrote:
>
>> Yes and he did not even include one of those signature lines to advertise
>> his products like those other filthy vendors. That Narbik, he's scandalous.
>> He's surely got some mal intentions. We need to keep an eye on that
>> Armenian. The nerve of him making the other good guys look like they are
>> only in it for the advertising. Some of them just seem to get paid to post
>> replies and congratulations even.
>>
>> On Fri, Sep 25, 2009 at 5:25 PM, Ernest McCaleb <emccaleb_at_gmail.com>wrote:
>>
>>> How dare Narbik offer you any assistance! What a bogus unprofessional
>>> and
>>> underhanded way to promote his workbooks! My God, next thing you know
>>> one
>>> of those guys from INE may chime in!!
>>> :-)
>>>
>>> Ernest #21508
>>>
>>> On Fri, Sep 25, 2009 at 5:14 PM, Salah ElShekeil
>>> <salah.elshekeil_at_gmail.com>wrote:
>>>
>>> > Hi Narbik,
>>> >
>>> >
>>> >
>>> > As usual great reply
>>> >
>>> >
>>> >
>>> > keep it up boss :)
>>> >
>>> >
>>> >
>>> > On Fri, Sep 25, 2009 at 10:01 PM, Tony Varriale
>>> > <tvarriale_at_flamboyaninc.com>wrote:
>>> >
>>> > > It's actually very revelant as the info he is quoting is from systems
>>> > > that's have the capability to download fib onto hardware/linecard.
>>> > >
>>> > > What you described is more of the foundation and is more accurate in
>>> a
>>> > > base sense.
>>> > >
>>> > > You can't download fib to hardware that doesn't exist.
>>> > >
>>> > > Sent from my iPhone
>>> > >
>>> > > On Sep 25, 2009, at 12:30 PM, Narbik Kocharians <narbikk_at_gmail.com>
>>> > > wrote:
>>> > >
>>> > > > When you look at RIB and FIB you have to think of the 2 major and
>>> > > > most important components of routing:
>>> > > >
>>> > > > Control Plane
>>> > > > Data Plane
>>> > > > The control plane takes care of the routing information exchange,
>>> > > > and in MPLS environment, label exchange between adjacent devices.
>>> > > > What do we have and see in the control plane? Routing protocols,
>>> > > > exchange of routing information, RIB (Routing Information Table)
>>> and
>>> > > > once again in an MPLS environment you will also see a Label
>>> Exchange
>>> > > > Protocol such as LDP.
>>> > > >
>>> > > > So therefore control plane builds a routing table or RIB based on
>>> > > > the routing protocols.
>>> > > > The control plane builds/populates 2 forwarding tables: a FIB
>>> (Which
>>> > > > is built from the information in the RIB) and in MPLS networks an
>>> > > > LFIB (Label Forwarding Information Base). These (FIB and LFIB)
>>> exist
>>> > > > and work in the Data plane.
>>> > > >
>>> > > > The data Plane is simply a forwarding engine that is independent of
>>> > > > the routing protocol or Label exchange protocol type; this Plane
>>> > > > forwards packets to the appropriate interface based on the info
>>> > > > found in the FIB or LFIB.
>>> > > >
>>> > > > So the way I envision it:
>>> > > >
>>> > > > You use a routing protocol to advertise routes upstreamb&b&and if
>>> > > > any of the upstream routers need to connect to the advertised
>>> networ
>>> > > > ks, they connect downstream toward the destination.
>>> > > >
>>> > > > Now this is a very brief and basic explanation of the RIB, FIB and
>>> > > > LFIB.
>>> > > >
>>> > > > Now weather they are hardware based or software based I think is
>>> > > > irrelevant when you look at different platforms.
>>> > > >
>>> > > >
>>> > > > On Fri, Sep 25, 2009 at 9:24 AM, Tony Varriale <
>>> > > tvarriale_at_flamboyaninc.com
>>> > > > > wrote:
>>> > > > That's making a poor assumption that the device you are speaking
>>> > > > about is
>>> > > > hardware based.
>>> > > >
>>> > > > More than half of people won't come in contact with those devices
>>> > > > (with the
>>> > > > exception of a 6500).
>>> > > >
>>> > > > tv
>>> > > >
>>> > > > -----Original Message-----
>>> > > > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>>> Behalf
>>> > > > Of
>>> > > > Anthony Sequeira
>>> > > > Sent: Friday, September 25, 2009 10:13 AM
>>> > > > To: Syed Khalid Ali
>>> > > > Cc: ccielab_at_groupstudy.com
>>> > > > Subject: Re: QS: FIB and RIB: what is the difference
>>> > > >
>>> > > > The Routing Information Base is the copy of the routing table
>>> stored
>>> > > > in software on the Cisco device.
>>> > > >
>>> > > > The Forwarding Information Base is the copy of the routing table
>>> > > > stored in hardware on the Cisco device.
>>> > > >
>>> > > > Thanks to Cisco Express Forwarding (CEF) and its use of the FIB,
>>> > > > performance for Cisco routers is much improved.
>>> > > >
>>> > > > Warmest Regards,
>>> > > >
>>> > > > Anthony J. Sequeira, CCIE #15626
>>> > > > http://www.INE.com <http://www.ine.com/> <http://www.ine.com/> <
>>> http://www.ine.com/>
>>>
>>> > > >
>>> > > > Test your Core Knowledge today!
>>> > > > Q: What protocol supports load-balancing with first-hop redundancy?
>>> > > > A: gateway load balancing protocol
>>> > > > More Info:
>>> > > >
>>> > >
>>> > >
>>> >
>>> http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp.html
>>> > > >
>>> > > >
>>> > > > On Sep 25, 2009, at 10:47 AM, Syed Khalid Ali wrote:
>>> > > >
>>> > > > > dear group,
>>> > > > >
>>> > > > > I just started to prepare for R&S track. While going through the
>>> "ip
>>> > > > > packet
>>> > > > > debug command" these two terms just popped up.
>>> > > > > What is the difference between these two?
>>> > > > >
>>> > > > > Thanks
>>> > > > > Khalid
>>> > > > >
>>> > > > >
>>> > > > >
>>> > > > > _________________________________________________________________
>>> > > > > Show them the way! Add maps and directions to your party invites.
>>> > > > >
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>>> > > >
>>> > > >
>>> > > >
>>> > > >
>>> > > >
>>> > > >
>>> > > >
>>> > > >
>>> > > > --
>>> > > > Narbik Kocharians
>>> > > > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>>> > > > www.MicronicsTraining.com <http://www.micronicstraining.com/> <
>>> http://www.micronicstraining.com/> <
>>> > http://www.micronicstraining.com/>
>>> > > > Sr. Technical Instructor
>>> > >
>>> > >
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>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> > >
>>> >
>>> >
>>> > --
>>> > Salah
>>> > CCIE #24207
>>> >
>>> >
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>>> >
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>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>>
>>> --
>>> Ernest McCaleb
>>>
>>>
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>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>
>
> --
> Salah
> CCIE #24207
>

-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
Sr. Technical Instructor
Blogs and organic groups at http://www.ccie.net