From: Alexei Monastyrnyi (alexeim73@gmail.com)
Date: Wed Jan 14 2009 - 06:10:03 ARST
Scott, you are grand and yet so modest. :-)
A.
Scott Morris wrote:
> I write ghost writer's labs.
>
> ;)
>
>
>
> Scott Morris, CCIE4 #4713, JNCIE-M #153, JNCIS-ER, CISSP, et al.
> CCSI/JNCI-M/JNCI-ER
> Senior CCIE Instructor
>
> smorris@internetworkexpert.com
>
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Outside US: 775-826-4344
>
> Knowledge is power.
> Power corrupts.
> Study hard and be Eeeeviiiil......
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Anthony Sequeira
> Sent: Tuesday, January 13, 2009 7:45 PM
> To: Narbik Kocharians
> Cc: Darby Weaver; swm@emanon.com; Tyson Scott; Pavel Bykov; Hobbs; mike
> jones; ccielab@groupstudy.com
> Subject: Re: Frame-relay Fragmentation!
>
> Petr Lapukhov writes my labs.
>
> ;-)
>
> For what it is worth - I do not believe we use any ghost writers either.
>
> Anthony J. Sequeira, CCIE #15626, CCSI #23251
> Senior CCIE Instructor
>
> asequeira@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Outside US: 775-826-4344
>
> On Jan 13, 2009, at 7:28 PM, Narbik Kocharians wrote:
>
>
>> I write my own labs.
>>
>> On Tue, Jan 13, 2009 at 4:17 PM, Darby Weaver
>> <ccie.weaver@gmail.com> wrote:
>>
>>
>>> Honestly though the only person who I've seen as a trainer who any
>>> stats
>>> and conclusions can be drawn from is that guy from Germany.
>>>
>>> He literally has smiling faces with CCIE Digits tacked onto them.
>>>
>>> If you count them and do the math for his 3-week classes he is
>>> about the
>>> closest person I can think of who has even close to perfect average.
>>>
>>> Now the flip side:
>>>
>>> 1. Student who I did the mock labs with left his class and passed
>>> the lab
>>> with another week's usage of the instructor's racks per the deal.
>>>
>>> 2. One other student just emailed me and is going back to visit Mr.
>>> H. for
>>> the 3rd time - 3 weeks each and his company is paying for the
>>> training so I
>>> guess he can go till he passes. I don't think this is normal
>>> though. But I
>>> think my friend is a manager a client-company too.
>>>
>>> It all depends on the student too.
>>>
>>> Then again:
>>>
>>> Some people I know reported back they did not think much of his
>>> teaching
>>> style and a 1-2 of them trained with Narbik and loved him by
>>> comparison.
>>> Note: the guy who passed above also trained with Narbik and had
>>> good things
>>> to say but I think he said he wished the classes were longer in
>>> duration at
>>> Narbik's as I recall. If I recall correctly he may have been to
>>> one or more
>>> othe trainers too.
>>>
>>> The truth is a lot of candidates use more than one workbook or
>>> trainer.
>>>
>>> And there is the case where some of the vendors have even used the
>>> same
>>> people to write some of their materials - well how many people are
>>> there who
>>> want to write labs all day anyway? One side does not advertise who's
>>> writing their labs since ghost writers don't get to get the credit
>>> for their
>>> work and the ghost writers want to work more and so solicit
>>> themselves to
>>> other vendors as well.
>>>
>>> So things get a little murky.
>>>
>>> Who's writing for who? Who's being true? And Who don't even write
>>> anymore?
>>>
>>> And then when one vendor suspects or knows for sure about a
>>> promiscuous lab
>>> workbook writer... Hmm.... Things happen too it seems.
>>>
>>> And we live in such a small world for such stuff.
>>>
>>>
>>> Funny how the ball rolls.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On 1/13/09, Scott Morris <swm@emanon.com> wrote:
>>>
>>>> :)
>>>>
>>>> -----Original Message-----
>>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
>>>> Behalf Of
>>>> Narbik Kocharians
>>>> Sent: Tuesday, January 13, 2009 4:45 PM
>>>> To: Darby Weaver
>>>> Cc: Tyson Scott; Pavel Bykov; Hobbs; mike jones; ccielab@groupstudy.com
>>>> Subject: Re: Frame-relay Fragmentation!
>>>>
>>>> hahahaha
>>>>
>>>> I should have said 72.4 percent passing on thier first attempt. I
>>>> guess
>>>> its
>>>> like the 500 pages of QOS.
>>>>
>>>> On Tue, Jan 13, 2009 at 6:20 AM, Darby Weaver
>>>> <ccie.weaver@gmail.com>
>>>> wrote:
>>>>
>>>>
>>>>> Actually,
>>>>>
>>>>> If you really wanna know how the "words" might look you got a few
>>>>>
>>>> options:
>>>>
>>>>> 1. Check CCO for the Tech Tips where the issues affected someone
>>>>> and how
>>>>> Cisco had to deal with it -
>>>>>
>>>>>
>>>>
> http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a00801142d
>
>>>> e.shtml
>>>>
>>>>> 2. The CCIE Accessor.
>>>>>
>>>>> 3. Cisco Press CCIE Lab Books and Practical Studies Books.
>>>>>
>>>>> 4. Cisco Press - Frame Relay
>>>>>
>>>>> Maybe it's time to post the list of books you can use in lieu of
>>>>> a class
>>>>> for those on a tight budget or who don't have corporate funding.
>>>>>
>>>>>
>>>>> Verify on both sides of the link:
>>>>>
>>>>> R5#sh frame-relay fragment interface s1/0 501
>>>>>
>>>>> fragment size 200 fragment type end-to-end
>>>>> in fragmented pkts 4511 out fragmented pkts 86
>>>>> in fragmented bytes 109183 out fragmented bytes 10797
>>>>> in un-fragmented pkts 162 out un-fragmented pkts 88
>>>>> in un-fragmented bytes 10808 out un-fragmented bytes 5952
>>>>> in assembled pkts 1053 out pre-fragmented pkts 130
>>>>> in assembled bytes 94707 out pre-fragmented bytes 16317
>>>>> in dropped reassembling pkts 0 out dropped fragmenting pkts
>>>>> 0
>>>>> in DE fragmented pkts 4511 out DE fragmented pkts 0
>>>>> in DE un-fragmented pkts 162 out DE un-fragmented pkts 0
>>>>> in timeouts 0
>>>>> in out-of-sequence fragments 0
>>>>> in fragments with unexpected B bit set 0
>>>>> in fragments with skipped sequence number 0
>>>>> out interleaved packets 0
>>>>> R5#sh frame-relay fragment
>>>>> interface dlci frag-type size in-frag out-frag dropped-frag
>>>>> Se1/0 501 end-to-end 200 4519 86 0
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 1/12/09, Tyson Scott <tscott@ipexpert.com> wrote:
>>>>>
>>>>>
>>>>>> Narbik,
>>>>>>
>>>>>>
>>>>>>
>>>>>> It is definitely great to know what frame-relay fragmentation
>>>>>> does and
>>>>>>
>>>> to
>>>>
>>>>>> see how it affects traffic sent thru it. I think that your
>>>>>> example is
>>>>>> great
>>>>>> for that. But the question is to know when it is necessary. Most
>>>>>>
>>>> tasks
>>>>
>>>>>> are
>>>>>> not specifically going to tell a student to do fragmentation but
>>>>>> the
>>>>>> student
>>>>>> needs to understand based on the requirements of the question
>>>>>> that they
>>>>>> need
>>>>>> to do it.
>>>>>>
>>>>>>
>>>>>>
>>>>>> But really that was a great example of configuring it Narbik.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>>
>>>>>>
>>>>>> Tyson Scott - CCIE #13513 R&S and Security
>>>>>>
>>>>>> Technical Instructor - IPexpert, Inc.
>>>>>>
>>>>>>
>>>>>> Telephone: +1.810.326.1444
>>>>>> Cell: +1.248.504.7309
>>>>>> Fax: +1.810.454.0130
>>>>>> Mailto: tscott@ipexpert.com
>>>>>>
>>>>>>
>>>>>>
>>>>>> Join our free online support and peer group communities:
>>>>>>
>>>>>>
> http://www.IPexpert.com/communities
>
>>>>>>> <
>>>>>>>
>>>> http://www.ipexpert.com/communities>
>>>>
>>>>>>
>>>>>> IPexpert - The Global Leader in Self-Study, Classroom-Based,
>>>>>> Video On
>>>>>> Demand
>>>>>> and Audio Certification Training Tools for the Cisco CCIE R&S
>>>>>> Lab, CCIE
>>>>>> Security Lab, CCIE Service Provider Lab , CCIE Voice Lab and CCIE
>>>>>>
>>>> Storage
>>>>
>>>>>> Lab Certifications.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> From: Narbik Kocharians [mailto:narbikk@gmail.com]
>>>>>> Sent: Monday, January 12, 2009 3:34 PM
>>>>>> To: Pavel Bykov
>>>>>> Cc: Tyson Scott; Hobbs; mike jones; ccielab@groupstudy.com
>>>>>> Subject: Re: Frame-relay Fragmentation!
>>>>>>
>>>>>>
>>>>>>
>>>>>> You should NOT look for words, you should focus on knowing what
>>>>>> it does
>>>>>> and
>>>>>> where to use it and how and where it helps.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> The topology is as follows:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>> R1---S0/0--10.1.12.1/24-----------------Frame-
>>>> relay--------------------10.1.
>>>>
>>>>>> 12.2/24--S0/0----R2
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1's Loopback is 1.1.1.1/8
>>>>>>
>>>>>> R2's Loopback is 2.2.2.2/8
>>>>>>
>>>>>>
>>>>>>
>>>>>> Task 1
>>>>>>
>>>>>>
>>>>>>
>>>>>> Configure Frame-relay Fragmentation between the two routers such
>>>>>> that
>>>>>>
>>>> the
>>>>
>>>>>> largest packet size is 80 Bytes.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Both Routers:
>>>>>>
>>>>>>
>>>>>>
>>>>>> Rx(config)#interface S0/0
>>>>>>
>>>>>> Rx(config-if)#Frame-relay fragment 80 end-to-end
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> To verify the configuration:
>>>>>>
>>>>>>
>>>>>>
>>>>>> On R1
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Show frame-relay pvc 102
>>>>>>
>>>>>>
>>>>>>
>>>>>> PVC Statistics for interface Serial1/0 (Frame Relay DTE)
>>>>>>
>>>>>>
>>>>>>
>>>>>> DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE =
>>>>>>
>>>> Serial0/0
>>>>
>>>>>>
>>>>>> input pkts 0 output pkts 0 in bytes 0
>>>>>>
>>>>>> out bytes 0 dropped pkts 0 in pkts
>>>>>> dropped 0
>>>>>>
>>>>>>
>>>>>> out pkts dropped 0 out bytes dropped 0
>>>>>>
>>>>>> in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
>>>>>>
>>>>>> out BECN pkts 0 in DE pkts 0 out DE pkts 0
>>>>>>
>>>>>> out bcast pkts 0 out bcast bytes 0
>>>>>>
>>>>>> 5 minute input rate 0 bits/sec, 0 packets/sec
>>>>>>
>>>>>> 5 minute output rate 0 bits/sec, 0 packets/sec
>>>>>>
>>>>>> pvc create time 00:29:43, last time pvc status changed 00:28:34
>>>>>>
>>>>>> fragment type end-to-end fragment size 80
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Note the output of the above show command reveals that Frame-relay
>>>>>> fragmentation is enabled and the type is set to end-to-end which
>>>>>> is
>>>>>>
>>>> FRF.12
>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> To test the configuration:
>>>>>>
>>>>>>
>>>>>>
>>>>>> On R1
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Ping 10.1.12.2 size 80 repeat 1
>>>>>>
>>>>>>
>>>>>>
>>>>>> Type escape sequence to abort.
>>>>>>
>>>>>> Sending 1, 80-byte ICMP Echos to 10.1.12.2, timeout is 2 seconds:
>>>>>>
>>>>>> !
>>>>>>
>>>>>> Success rate is 100 percent (1/1), round-trip min/avg/max =
>>>>>> 64/64/64 ms
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Show frame-relay fragment 102
>>>>>>
>>>>>>
>>>>>>
>>>>>> interface dlci frag-type size in-frag out-
>>>>>> frag
>>>>>> dropped-frag
>>>>>>
>>>>>> Se0/0 102 end-to-end 80 2 2
>>>>>> 0
>>>>>>
>>>>>>
>>>>>>
>>>>>> Note the fragmentation size is set to 80 Bytes, and the size of
>>>>>> the
>>>>>>
>>>> ping
>>>>
>>>>>> packet was 80 Bytes as well, but the output of the above show
>>>>>> command
>>>>>> reveals that there were two fragmented packets. This is because
>>>>>> the
>>>>>>
>>>> size
>>>>
>>>>>> of
>>>>>> the frame-relay header was NOT considered when the size of the
>>>>>> ping
>>>>>>
>>>> packet
>>>>
>>>>>> was configured. The actual size of the frame-relay header is 2
>>>>>> Bytes,
>>>>>>
>>>> and
>>>>
>>>>>> as
>>>>>> a result of that, the size of the ping packet was 82 Bytes,
>>>>>> therefore,
>>>>>>
>>>> 2
>>>>
>>>>>> fragmented packets were generated.
>>>>>>
>>>>>>
>>>>>>
>>>>>> To test this further:
>>>>>>
>>>>>>
>>>>>>
>>>>>> On R1
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#clear counters
>>>>>>
>>>>>>
>>>>>>
>>>>>> Clear "show interface" counters on all interfaces [confirm]
>>>>>>
>>>>>> R1#
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Ping 10.1.12.2 size 78 repeat 1
>>>>>>
>>>>>>
>>>>>>
>>>>>> Type escape sequence to abort.
>>>>>>
>>>>>> Sending 1, 78-byte ICMP Echos to 10.1.12.2, timeout is 2 seconds:
>>>>>>
>>>>>> !
>>>>>>
>>>>>> Success rate is 100 percent (1/1), round-trip min/avg/max =
>>>>>> 40/40/40 ms
>>>>>>
>>>>>> R1#
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Show frame-relay fragment 102
>>>>>>
>>>>>>
>>>>>>
>>>>>> interface dlci frag-type size in-frag out-
>>>>>> frag
>>>>>> dropped-frag
>>>>>>
>>>>>> Se0/0 102 end-to-end 80 0 0
>>>>>> 0
>>>>>>
>>>>>>
>>>>>>
>>>>>> Note the above Show command reveals that the ICMP packet was NOT
>>>>>> fragmented;
>>>>>> the size of the ICMP packet is 78 Bytes plus the two Bytes of
>>>>>>
>>>> Frame-relay
>>>>
>>>>>> header equals to 80 Bytes, therefore, it does not need to get
>>>>>>
>>>> fragmented.
>>>>
>>>>>>
>>>>>> To test the configuration further:
>>>>>>
>>>>>>
>>>>>>
>>>>>> On R1
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Ping 10.1.12.2 size 79 repeat 1
>>>>>>
>>>>>>
>>>>>>
>>>>>> Type escape sequence to abort.
>>>>>>
>>>>>> Sending 1, 79-byte ICMP Echos to 10.1.12.2, timeout is 2 seconds:
>>>>>>
>>>>>> !
>>>>>>
>>>>>> Success rate is 100 percent (1/1), round-trip min/avg/max =
>>>>>> 60/60/60 ms
>>>>>>
>>>>>>
>>>>>>
>>>>>> R1#Show frame-relay fragment 102
>>>>>>
>>>>>>
>>>>>>
>>>>>> interface dlci frag-type size in-frag out-
>>>>>> frag
>>>>>> dropped-frag
>>>>>>
>>>>>> Se0/0 102 end-to-end 80 2 2
>>>>>> 0
>>>>>>
>>>>>> R1#
>>>>>>
>>>>>>
>>>>>> i hope this helped.
>>>>>>
>>>>>> On Mon, Jan 12, 2009 at 11:21 AM, Pavel Bykov <slidersv@gmail.com>
>>>>>>
>>>> wrote:
>>>>
>>>>>> Also look for "Large data packets" and "voice packets are
>>>>>> prioritized
>>>>>> although are waiting behind large packets that take long to send
>>>>>> out"
>>>>>>
>>>>>> Tyson, correction: Reducing delay, since there is no way to
>>>>>> prevent it
>>>>>>
>>>> :)
>>>>
>>>>>>
>>>>>> On Mon, Jan 12, 2009 at 7:21 PM, Tyson Scott <tscott@ipexpert.com>
>>>>>>
>>>> wrote:
>>>>
>>>>>>> Mike,
>>>>>>>
>>>>>>> Or if the question talks about preventing serialization delay.
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> Tyson Scott - CCIE #13513 R&S and Security
>>>>>>> Technical Instructor - IPexpert, Inc.
>>>>>>>
>>>>>>> Telephone: +1.810.326.1444
>>>>>>> Cell: +1.248.504.7309
>>>>>>> Fax: +1.810.454.0130
>>>>>>> Mailto: tscott@ipexpert.com
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
>>>>>>> Behalf
>>>>>>>
>>>> Of
>>>>
>>>>>>> Hobbs
>>>>>>> Sent: Monday, January 12, 2009 11:54 AM
>>>>>>> To: mike jones
>>>>>>> Cc: ccielab@groupstudy.com
>>>>>>> Subject: Re: Frame-relay Fragmentation!
>>>>>>>
>>>>>>> Off the top of my head, maybe something like "maximum packet
>>>>>>> size"...
>>>>>>>
>>>>>>> On Mon, Jan 12, 2009 at 9:50 AM, mike jones <ccie1q2008@hotmail.com
>>>>>>>
>>>>>>> wrote:
>>>>>>>
>>>>>>>
>>>>>>>> Group,
>>>>>>>> What key words in a tasks will lead you to frame-relay
>>>>>>>>
>>>>>> fragmentation
>>>>>>
>>>>>>> as
>>>>>>>
>>>>>>>> the solution?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Thanks!
>>>>>>>>
>>>>>>>>
>>>>>>>> Mike
>>>>>>>>
>>>>>>>> _________________________________________________________________
>>>>>>>> Windows Live : Keep your life in sync.
>>>>>>>>
>>>>>>>>
>>>> http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009
>>>>
>>>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>>>
>>>> <http://www.ccie.net/>
>>>>
>>>>>>>>
> _______________________________________________________________________
>
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>>>>>>>>
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>>>>>>>
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>>>>>>>
>>>> _______________________________________________________________________
>>>>
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>>>>>>>
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>>>>>>>
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>>>>>>>
>>>> _______________________________________________________________________
>>>>
>>>>>>> Subscription information may be found at:
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> Pavel Bykov
>>>>>> ----------------
>>>>>> Don't forget to help stopping the braindumps, use of which reduces
>>>>>>
>>>> value
>>>>
>>>>>> of
>>>>>> your certifications. Sign the petition at
>>>>>>
>>>> http://www.stopbraindumps.com/
>>>>
>>>>>>
>>>>>> Blogs and organic groups at http://www.ccie.net <http://www.ccie.net/
>>>>>>
>>>>>>
> _______________________________________________________________________
>
>>>>>> Subscription information may be found at:
>>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Narbik Kocharians
>>>>>> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>>>>>> www.MicronicsTraining.com <http://www.micronicstraining.com/> <
>>>>>>
>>>> http://www.micronicstraining.com/>
>>>>
>>>>>> www.Net-Workbooks.com <http://www.net-workbooks.com/> <
>>>>>>
>>>> http://www.net-workbooks.com/>
>>>>
>>>>>> Sr. Technical Instructor
>>>>>>
>>>>>>
>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>
>>>>>>
>>>>>>
> _______________________________________________________________________
>
>>>>>> Subscription information may be found at:
>>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>> --
>>>> Narbik Kocharians
>>>> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>>>> www.MicronicsTraining.com <http://www.micronicstraining.com/>
>>>> www.Net-Workbooks.com <http://www.net-workbooks.com/>
>>>> Sr. Technical Instructor
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
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>>>> Subscription information may be found at:
>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>> --
>> Narbik Kocharians
>> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>> www.MicronicsTraining.com
>> www.Net-Workbooks.com
>> Sr. Technical Instructor
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>
>
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