Have a look at
http://www.cisco.com/univercd/cc/td/doc/product/software/ios111/cc111/dwfq.h
tm for a discussion of various flavors of WFQ.
RSVP is a different animal. RSVP is used to reserve specific resources
across a path.
See: http://www.isi.edu/div7/rsvp/rsvp.html for a discussion of RS
This would simply be a subnet with a 24 bit mask. Classfull boundaries
(A,B,C, etc.) are a thing of the past.
Irwin
> -Original Message-
> From: Oscar Rau [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 17, 2000 8:37 AM
> To: Cisco GroupStudy
> Subject: Class A or C??
>
>
> We are
Have a look at Mentor Technologies' TCP throughput testing tool:
http://www.mentortech.com/learn/tools/tools.shtml
Irwin
> -Original Message-
> From: Bob Johnson [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, August 22, 2000 9:53 AM
> To: '[EMAIL PROTECTED]'
> Subject: Simple Net Traffic Ge
ssume that they were either speaking
of MPLS in general, or one of the MPLS label distribution protocols such as
CR-LDP or RSVP-TE.
For
all you ever wanted to know on MPLS and more, see the MPLS Resource Center at http://www.mplsrc.com/ . We've got a
fairly complete MPLS F
See http://www.itprc.com/datalink.htm for links to information on ATM.
Irwin
-Original Message-
From: Tapas Das [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 23, 2000 8:01 AM
To: [EMAIL PROTECTED]
Subject: UNI & PNI (ATM)
Dear ALL,
Can somebody send me details of UNI & NNI...
T
Actually that's not entirely accurate, yes MPLS is used in many ATM
networks, but MPLS is Layer 2 agnostic, it can run over ATM, Frame Relay,
Ethernet, or PPP.
Irwin
-Original Message-
From: Brian [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 23, 2000 10:02 AM
To: Circusnuts
Cc: [EM
I'm not sure I understand. If you use MPLS in an ATM environment, you
simply replace the VCI/VPI tag with an MPLS label. Most implementations of
MPLS in today's world use ATM cells at the data link layer.
BTW, we might want to take this off of this list as this topic isn't related
to Cisco cert
Agreed, IMHO the role of a network administrator in coming years is going to
be primarily to manage application performance across the network. This
will require a solid understanding of the servers and services that support
those applications.
irwin
> -Original Message-
> From: Marshal
We use SL4NT, works great and took about five minutes to install.
See: http://www.netal.com/
irwin
> -Original Message-
> From: Kent [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, August 23, 2000 5:20 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Logging Server on NT
>
>
Legacy is generally used to describe older, obsolete equipment, services,
and/or technologies.
For example, SNA is generally considered a legacy protocol because most
networks are migrating toward IP. A Cisco AGS+ is considered a legacy
device because it is no longer supported. Heck, if you are
Have a look at http://www.groupstudy.com/faq/
irwin
> -Original Message-
> From: Brian Coffey [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 24, 2000 4:08 PM
> To: [EMAIL PROTECTED]
> Subject: Beginner
>
>
> ? Beginner for
>
> CCNA
>
> What is Recomended Books Or a Class??
>
Tough question. Currently, ATM is the predominant control protocol in
service provider networks, but that is starting to change. The complexity
of managing IP-over-ATM overlay networks, as well as the loss of efficiency
due to the ATM cell-tax (especially on high-speed links) is causing many
ser
> Good Morning, Falks.
>
> I need your help for find a equipment that integrates Fast
> Ethernet and
> FDDI in the same box.
> The equipment must be good, nice and cheaper.
>
> Thanks.
FDDI, cheap? Is there some requirement that mandates that you have FDDI?
If you are looking for good, nice
Thought I would pass this along:
For those of you in the
Washington D.C. area, NANOG 20 will be held on October 22-24 in downtown D.C.
at the Renaissance Washington DC Hotel, near the Metro Center metro
stop. This event represents a tremendous training opportunity for those
invol
sure, set an access list that only permits your internal subnet.
such as:
access-list 1 permit 10.10.10.0 0.0.0.255
then enter the following commands:
config t
line vty 0 4
access-class 1 in
end
make sure you have a password set on your vty ports.
MAKE SURE YOU TEST THIS ON A ROUTER THAT YOU
Howdy,
Pine mountain group, global knowledge, Network Associates "Sniffer
Univerisity."
Also see http://www.packet-level.com/ for wonderful resources for packet
capture analysis.
Irwin
> -Original Message-
> From: Watson, Rick, , OUSDC [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, Septemb
You might want to try looking at "Large-Scale IP Network Solutions" by
Kahlid Raza (Cisco Press). It covers some of these topics, but it doesn't
really provide a head-to-head comparison. However, it might provide you
with the information that you need to conduct your own study.
I'd also recomme
I'm a believer in the KISS principle. Given your requirements, you should
be able to use bridging without any problems. I'd go with bridging and
monitor line utilization. If it starts to creep up, or you are seeing high
peaks, then turn on routing and WINS.
Irwin
> -Original Message-
Your best bet is to get a copy of "Interconnections" by Radia Perlman.
Radia wrote the Spanning Tree protocol and nobody explains it better.
You can also see my web site at http://www.itprc.com/ and check out the
datalink page for links to Ethernet resources.
And finally, a new version of spanni
There was a new version under development. I've got a manuscript copy but
I'm not sure if the latest version is ready yet. Check Amazon or Fatbrain.
Irwin
-Original Message-
From: Kelly Scroggins [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 19, 2000 1:09 AM
To: Irwin Lazar
Good question. OpenView, Unicenter and Tivoli are the most widely "sold"
products, but as far as what's actually in "use", that's a far different
question. I heard from one vendor that roughly 70% of the NMS packages sold
today are never used, or are only minimally used.
I think you'll see a
There is a freeware SNMP client available for NT and you can use MRTG as the
server. See http://www.itprc.com/nms.htm for links.
Irwin
-Original Message-
From: Jim Bond [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 24, 2000 4:12 PM
To: [EMAIL PROTECTED]
Subject: SNMP host
Hello,
I
Cristina, see http://www.ipmulticast.com/ for all sorts of helpful
references.
Irwin
-Original Message-
From: Cristina Hoselins [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 24, 2000 8:06 PM
To: [EMAIL PROTECTED]
Subject: PIM
All,
Would you please explain to me, the main reason why
Both, or neither. BGP is commonly referred to as a "Path Vector" protocol.
See RFC1771 "A Border Gateway Protocol":
http://www.faqs.org/rfcs/rfc1771.html
See http://www.itprc.com/routing.htm for several links to BGP tutorials.
Irwin
-Original Message-
From: cisco cabanaboy [mailto:[EM
See http://www.itprc.com/routing.htm
-Original Message-
From: Kevin Welch [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 25, 2000 7:37 AM
To: [EMAIL PROTECTED]
Subject: Good OSPF study material
I was wondering if anyone could recommend some good study material for OSPF.
I am currently
which whitepaper are you referring to? I've got links on the ITPRC to a
series of papers on BGP by Dr. Peter Welcher. See
http://www.itprc.com/routing.htm
Irwin
-Original Message-
From: Hans Schimek [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 01, 2000 4:04 AM
To: cisco
Subject: Whit
try:
http://www.itprc.com/vpn.htm
irwin
-Original Message-
From: Jesus Suarez Gonzalez [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 01, 2000 12:13 PM
To: [EMAIL PROTECTED]
Subject: vpn
I need materia of study about VPN,
where can i found this material.
regards
__
Cisco recently introduced a product called "Quality of Service Manager". I
believe the latest version is 1.1 Anyway, the purpose of the product is
to allow you to easily (hah) provision QoS across your network from a single
console. It might be the answer to your needs.
Irwin
-Original Me
It depends on your application requirements. Do you have any applications
that require guaranteed levels of QoS? Do you have applications with other
requirements that only ATM can support, and/or that justify the additional
cost and complexity of ATM?
For the most part, we rarely recommend ATM
I'd
recommend the Dale Carnegie course.
As far
as technical know-how, IMHO the first step is a solid understanding of
TCP/IP.
Irwin
-Original Message-From: Stephen.B
[mailto:[EMAIL PROTECTED]]Sent: Tuesday, June 06, 2000 3:38
PMTo: [EMAIL PROTECTED]Subject: To the expert
Internet Routing Architectures - Version 2, by Basam Halabi.
Also, see http://www.itprc.com/routing.htm for links to BGP resources. And,
CertificationZone - http://www.certificationzone.com/ has a BGP tutorial
that folks have been raving over.
Don't forget that this list is archived at http:/
Hi Oscar,
ATM isn't really a LAN technology. It's actually a multi-purpose technology
that was designed to effectively carry multiple types of traffic (such as
voice, video and data) in a variety of environments. In fact, we no longer
recommend ATM for LAN environments as Gigabit Ethernet is che
It depends on which backbone you are talking about. :-)
AT&T is currently offering IP-Enabled Frame Relay Services that are based on
Frame-Relay access into an ATM-cell based cloud using MPLS as the control
plane. In this manner, data is transported in 53-byte ATM cells, but
circuit provisioning
Pacestar Software offers a tool called LanFlow that is nice. See
http://www.pacestar.com/lanflow/index.html. You can get a free 30 day
trial.
BTW, we use Powerpoint for most of our drawings. It actually works pretty
well.
Irwin
-Original Message-
From: LORENZO Juan Ignacio [mailto:[E
Howard,
I seem to remember @home trying to base their network on RFC 1918
addressing, and then petitioning for a Class "A" after they ran into
problems with users that were trying to play games across the Internet. It
seems that many games rely on a unique IP address to identify users. Does
this
The router will segment the packet and assign a label to each segment. It
is important to note that SAR is handled at layer 2 for Ethernet. MPLS is
really simply a control plane, it doesn't handle functions such as SAR.
See The MPLS Resource Center at http://www.mplsrc.com/ for a wealth of MPLS
The only problem with 10GB Ethernet is that the standard is about 2 years
away from ratification. For the next few years, interoperability is going
to be a large concern.
Irwin
-Original Message-
From: Byron Bean [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 07, 2000 10:22 PM
To: [E
See http://www.itprc.com/datalink.htm for several resources. I'd also
suggest you take a look at Cisco's web site and find the proper
configuration guide for your IOS version.
Irwin
-Original Message-
From: Vic Feferberg [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 14, 2000 4:58 AM
This topic has been discussed on several firewall and security-related
mailing lists and isn't really related to cisco certifications.
Try http://www.itprc.com/security.htm for links to several related lists or
www.remarq.com
Irwin
-Original Message-
From: krishnakanth S [mailto:[EMAIL
I've added a few more links to Cisco certification resources to the ITPRC -
http://www.itprc.com/training.htm
One of the links is a pretty good list of tips from someone who just got
their certification. Let me know if there are any good links that I'm
missing.
Irwin
__
There are a few books out there, but your best bet is the Cisco web site.
Irwin
-Original Message-
From: Kevin Welch [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 13, 2000 1:12 PM
To: [EMAIL PROTECTED]
Subject: Good pix resources?
If anyone has any good links/books on PIX configuratio
Cisco Press released a book last year called Desigining Large Scale
Internetworks. It's well worth reading.
Irwin
-Original Message-
From: Dinesh_Kakkar [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 15, 2000 2:21 AM
To: [EMAIL PROTECTED]
Subject: ??good Case study on LAN/WAN
hello f
see:
http://www.itprc.com/voice.htm
-Original Message-
From: Mari Misato [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 13, 2000 11:02 AM
To: [EMAIL PROTECTED]
Subject: VoIP Fundamentals (Cisco Press)
Hi Group
Has anyone got any recommendations about VoIP
other than the Cisco Press boo
Layer 4 switching means that a router can forward packets based on L4
information such as TCP port #. This can be used to prioritize specific
applications and is currently supported by most vendors. Products from
vendors such as Allot, Top Layer and others can even make decisions based on
higher
e=mc^2 has been my favorite, but now I'm hearing that one researcher has
exceeded the speed of light, so now I don't know what to believe anymore.
Irwin
-Original Message-
From: tazar Ing [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 12, 2000 4:29 PM
To: [EMAIL PROTECTED]
Subject: Genera
Try the following:
http://grouper.ieee.org/groups/802/index.html - IEEE 802 standards comittee
page
Alteon's web site has a lot of good resources as well.
Irwin
-Original Message-
From: Farooq Ali [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 14, 2000 10:21 AM
To: cisco GroupStudy
Yes. You do not need to take any prior exams before taking the CCIE (at
least not yet anyway, :-) )
All that you need to do to obtain the CCIE is to pass a written exam,
followed by a two-day lab exam at a Cisco facility. Sounds easy doesn't it?
Irwin
-Original Message-
From: Victor I
The 6500 is a pretty competent box, though it's a bit more expensive in
terms of price to performance compared with boxes from competitors such as
Extreme & Foundry.
Irwin
-Original Message-
From: BB [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 20, 2000 1:46 AM
To: [EMAIL PROTECTED]
Su
You can get visio icons at www.netcerts.com, you can also get a free
download of a pretty nice drawing package from pacestar software at
www.pacestar.com
irwin
-Original Message-
From: Brandon Carroll [mailto:[EMAIL PROTECTED]]
Sent: Saturday, June 17, 2000 6:29 PM
To: [EMAIL PROTECTED]
Outside of Raliegh. See: http://www.cisco.com/warp/public/687/rtp.html for
maps/directions.
-Original Message-
From: Joe Dewberry [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 22, 2000 12:29 AM
To: [EMAIL PROTECTED]
Subject: RTP, North Carolina
Where is the RTP located in North Carol
We're using 802.11b in our office and we love it. We use the Apple AirPort
base station, which is made by Lucent but sells for only $299. It supports
up to 10 users but you need a Macintosh to configure it (or a freeware Java
app). As far as NICs, we're using Lucent PCMCIA cards. We're getting
FYI:
Marconi's primary component is the former FORE systems.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 28, 2000 8:17 AM
To: [EMAIL PROTECTED]
Subject: Marconi Announces New Technical Education Certification Program
Marconi Annou
FYI:
http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml
Cisco Routers Vulnerable to Scanners
Monday, June 26, 2000 - Cisco Systems is reminding customers
that
its hardware may crash when certain vulnerability checks
are
Building Internet Firewalls by Chapman
http://www.itprc.com/security.htm
Irwin
-Original Message-
From: George Zhang [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 05, 2000 10:06 AM
To: [EMAIL PROTECTED]
Subject: Book + Resources about WEB security
I would like to know that best boo
T1 networking - by William Flanagan
Also see my web site at http://www.itprc.com/ for tons of resources on WANs
irwin
-Original Message-
From: Senthilvel Rangaswamy [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 06, 2000 3:39 PM
To: [EMAIL PROTECTED]
Subject: RESEND: WAN Books info req
Hi Guys,
Just as a side note to the current ACL discussions, I recently added a
section to my web site that contains a collection of articles and resources
that deal with Cisco ACL issues. See http://www.itprc.com/security.htm
The articles are:
Access Lists: Tricks of the Trade - CertificationZ
Hi Sanjay,
Could you post your list so we can take a look?
Irwin
-Original Message-
From: Sanjay.Padmanabhan
[mailto:[EMAIL PROTECTED]]
Sent: Friday, July 07, 2000 8:02 AM
To: [EMAIL PROTECTED]
Subject: Access-list
Hi all,
We have an access-list that has to allow ony DNS and SMTP
Not necessarily, you can use ISL to carry all three VLANs across a single
link.
You can also use an RSM in Cat5xxx and do the routing directly on the switch
via virtual router interfaces.
To answer your other questions, your default gateway is whatever IP address
in each subnet that you want it
Howdy,
Port 80 and if you are doing SSL, port 443.
Note that if you want to give remote Outlook clients access to an Exchange
Server, you can statically set the ports to use. There is a Microsoft
Technote on their web site as to how to do this, it involves editing the
registry a bit.
Irwin
---
There are several books on the topics and I maintain a list of on-line
resources at http://www.itprc.com/security.htm
Irwin
-Original Message-
From: Ronnie Toolte [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 12, 2000 1:26 PM
To: [EMAIL PROTECTED]
Subject: access-list ?
Does anyone
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