interactive voice over satellite is problematic due to the inherent
latency of the signal travelling 40,000km distance to the satellite
and another 40,000km back. this adds 125ms of latency in each
direction (to/from the bird), give or take. if you remeber using
satellite for long distance
what kind of circuit is it and is the success rate the same regardless
of the destination address pinged?
- Original Message -
From: Nathan
Date: Sunday, June 8, 2003 7:09 am
Subject: RE: 40% Ping Success [7:70327]
Well, the only route my router sees is the directly connected
:14 pm
Subject: Re: RE: number of CCIE [7:70151]
garrett allen wrote:
yawn.
Bored?
I don't want to be overly confrontational, but if you really
thought this
thread was so boring that you're yawning, then why did you bother
to make a
rebuttal to me in the first place? The fact
yawn.
- Original Message -
From: n rf
Date: Saturday, June 7, 2003 12:09 pm
Subject: Re: RE: number of CCIE [7:70151]
garrett allen wrote:
you make an a priori argument that lower is better. is a lower
number
cpa better than a higher numbered one?
You got me wrong. I
you make an a priori argument that lower is better. is a lower number
cpa better than a higher numbered one? actually, probably the inverse
is true as the more recent the certification the more recent the
material covered. this is balanced against with age comes
opportunities and
and we have
gotten away with this more often that not. If not you might
have to manually
reduce the MTU down on their hosts and/or Proxy Server using
something like
DoctorTCP.
Regards
garrett allen wrote in message
news:[EMAIL PROTECTED]
just finished an 8 city (3 u.s./5 e.u
and we have
gotten away with this more often that not. If not you might
have to manually
reduce the MTU down on their hosts and/or Proxy Server using
something like
DoctorTCP.
Regards
garrett allen wrote in message
news:[EMAIL PROTECTED]
just finished an 8 city (3 u.s./5 e.u
did yet!
What do the rest of you think? The exec summary is that we're
wondering how
common it is to adjust host MTU to avoid fragmentation with VPN
and IPSec.
See below.
garrett allen wrote:
just finished an 8 city (3 u.s./5 e.u.) vpn deployment. we
were in a
bit
just finished an 8 city (3 u.s./5 e.u.) vpn deployment. we were in a
bit of a rush and now that we have finished the initial deployment we
have the luxury of time to think things through a little more
clearly. one oversight that we made in our haste to deploy we just
confirmed - the overhead
: garrett allen
Date: Sunday, April 6, 2003 0:01 am
Subject: acl question
it's midnite, i'm bored, outta beer and my head is starting to
hurt
from too many random thoughts about what should be a simple acl.
i've
sufficiently banged my head against the wall so now i solicit help
from
the wise
eric,
i can only comment in a limited way and only based on what i have
read. the lower end cisco products (like the 2500's i've been
deploying in remote offices) can only associate one virtual mac address
to an interface and so can only belong to a single hsrp group. if you
have a need to
correct?
When you unplug any of the 4 cables, you can no longer ping the
either side
of the host. Perhaps give us a debug standby during one of these
events ?
garrett allen wrote:
i have a need for a high availability solution for a default
gateway
configuration. just finished
: it started out as a really good idea ... [7:64638]
What did you use a default gateway on the PCs??
Priscilla
garrett allen wrote:
i have a need for a high availability solution for a default
gateway
configuration. just finished the ccdp and thought it might be
interesting to try hsrp
mirable dictu!
secret is in the standby track command. lost 9 pings and then picked
up just like nothing happened. can pull any of the 4 links now an it
works just like in the movies.
thanks all.
- Original Message -
From: garrett allen
Date: Friday, March 7, 2003 6:57 am
Subject
, not to
mentionlack
of any routing protocol configured.
Think about it! :-)
Priscilla
The Long and Winding Road wrote:
garrett allen wrote in message
news:[EMAIL PROTECTED]
i have a need for a high availability solution for a default
gateway
configuration. just finished the ccdp
personally, i've had very good luck with vendor designs. in particular
if you have some inkling about what your requirements are and the
rudiments of a solution set in mind. if you know enough about a
solution to intelligently pose questions and negotiate features/costs
tradeoffs then you
i have a need for a high availability solution for a default gateway
configuration. just finished the ccdp and thought it might be
interesting to try hsrp on a pair of 2514's. put some of that theory
to work. instead of highly resiliant i've managed to configure it for
mass failure. arg..,
i have a need for a high availability solution for a default gateway
configuration. just finished the ccdp and thought it might be
interesting to try hsrp on a pair of 2514's. put some of that theory
to work. instead of highly resiliant i've managed to configure it for
mass failure. arg..,
is using Router 1 and Router 1 has no way to
send PC2's
packet from itself to Router 2 due to the missing cable, not to
mention lack
of any routing protocol configured.
Think about it! :-)
Priscilla
The Long and Winding Road wrote:
garrett allen wrote in message
news:[EMAIL
happens if PC2 is using Router 1 and Router 1 has no way
to send PC2's
packet from itself to Router 2 due to the missing cable, not
to mention
lack
of any routing protocol configured.
Think about it! :-)
Priscilla
The Long and Winding Road wrote:
garrett
and on a lighter note i never let school interfere with my education.
having done the management thing for 20 years i can say from a pragmatic
standpoint that a degree's value is primarily getting in the door. having
passed that hurdle comes the real test - do you know what you profess to
know.
for those tired of studying ospf, now you can sing it. i'm unaffiliated with
the link, just stumbled onto it.
http://www.oceanwave.com/technical-resources/humor/ospf.html
enjoy.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=59364t=59364
not sure there is an absolute answer as it would depend on actual cable
distance travelled (not as the crow flies), number of hops, policies
enforced, congestion, etc. as a rule of thumb i would use estimated
distance in kilometers / (400kilometers per second * .6). it is usually in
the
sorry, i was out of town the past few days in sunny detroit. sounds like we
agree - the answer is it depends.
thanks all.
- Original Message -
From: Elwood P. Suggins
To:
Sent: Thursday, November 21, 2002 6:00 PM
Subject: RE: passed cit. that's a wrap on ccnp [7:57741]
huh.. i guess
took the exam today and passed, barely. of the 4 it was by far the hardest.
ccdp next and then, well who knows. perhaps i'll finish that piano concerto
thanks all.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=57741t=57741
last minute prep question (and jitters) on how a router switches traffic.
setting for the cit tomorrow. attempting to confirm my understanding of
which type of switching is default for ip and which type for ipx, appletalk,
etc.
from ciscopress cisco internetwork troubleshooting by chappell and
before installing.
Let us know what the ISP's security folks find... this would be an
interesting learning experience.
-Mark
-Original Message-
From: Garrett Allen [mailto:garrett.allen;erols.com]
Sent: Friday, October 25, 2002 10:51 PM
To: [EMAIL PROTECTED]
Subject: ack attack
www.troubleshootingnetworks.com
www.priscilla.com
Garrett Allen wrote:
heys,
ran into something interesting today. not sure if it is a dos
attack or if it
indicates an ip stack misconfig. here is the symptom:
periodically through the day today we received 100,000 packet
bursts on a t-1
and it forces one to think about all the many things that can
go wrong.
thanks for your insights and thoughtful questions.
- Original Message -
From: Garrett Allen
To:
Sent: Saturday, October 26, 2002 9:59 PM
Subject: Re: ack attack or config prob? [7:56341]
priscilla,
the bursts were
heys,
ran into something interesting today. not sure if it is a dos attack or if
it
indicates an ip stack misconfig. here is the symptom:
periodically through the day today we received 100,000 packet bursts on a t-1
circuit. this is a name-brand provider. when the burst occurs it is from
the
we use mrtg (a freely available network monitoring tool) for a multi-site
frame network. we don't own the routers or have legitimate password access
to them (our vendor provides as part of the service) so we had the vendor
set up an snmp community string (read only) and an access control list on
not strictly a study topic - more a design topic. when designing a wan and
interconnecting multiple sites via frame relay, does it improve overall
security posture to place firewalls between the internal networks at each
remote location and the frame routers? my thought is that it would not
the tx/rx loads aren't that great and as it is a t-1 interface the amount of
traffic isn't that great. the thing of interest is the interface
description - link to uuwho. they have been having significant latency
issues. the url may not make it but i posted it below. it describes some
of
does anyone have experience (preferably successful) with using vpn over a
directway 2way satellite? if so please contact me off list.
thanks.
garrett
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=54701t=54701
--
FAQ, list
depends on how you define the uber layers. here's mine:
layer 8 - religion (in the sense of big/little endian)
layer 9 - politics
layer 10 - economics.
have been bitten by each at one point or another, so they are relevant but
contextual.
thanks.
- Original Message -
From: Tom Lisa
as a rule of thumb 10mbps ethernet to the user end station is fine for
typical user applications in businesses where the network plant is
switched - exchange, file sharing, etc. servers on 100mbps. i'm told that
more data intensive applications may require 100mbps ethernet to the
desktop, but i
just passed bcran 605 w/888 (706 minimum). fairly straightforward. between
routing, switching and remote access (the 3 ccnp exams i've taken thus far)
this
has had the most direct relevant use. (we're a software/hardware integrator
with 7 offices (4 international), 300 people, frame cloud,
all,
this technically isn't a cisco question, but i've been a long-time reader and
this is a puzzle eluding solution thus far so i thought i would try. i also
find it somewhat intriguing.
we're connected to our upstream provider via a t-1 (we're a software house).
per mrtg we use around
curious why one would want to change the mtu on an ethernet switch port?
trunk
ports appear to handle the mini-jumbo frames without the change. a quick
scan
of the www.cisco reveals how to but not why.
thoughts?
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=34715t=34715
i just passed this am with, would you believe, a 919 also. used cisco press
for self
study (paquet/teare - it is a very good text, btw - only a few typos). for
what it is
worth i found that working the configuration exercises in each chapter
really helped.
ever onward, rearward never,
i remember the term symbol as equated to a state change. in modulation
techniques where
1 symbol = 1 bit, the symbol rate and the bit rate are the same. some
modulation
techniques can yield multiple bits from a single symbol. qpsk (quaternary
phase shift
keying) is a form of phase angle
one tip is to issue the no debug all command prior to issuing debug all. that way when
the router display begins spewing debug info you can issue an up arrow and enter
command
sequence to get out of debug mode.
Gayathri wrote:
Hi Group,
Recently due to some problems my colleague issued a
heys,
just passed the ccda exam today (ccna prior). looking to get some hands-on
experience on a contract, part-time basis. any thoughts on how/where to start
(dc area)?
thanks.
_
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