RE: bandwidth [7:61552]

2003-02-10 Thread Larkin, Richard
I would bundle the two serial interfaces together using Multilink PPP, then place access control on the router so customer's can't talk to each other, then apply rate limiting to each customer with guaranteed 64k, burst additional 64k and do rate limiting on bundle (if that's possible). This is ge

4 Port Serial Interface on 2600 [7:66518]

2003-03-30 Thread Larkin, Richard
I note the 4-port serial interface (NM-4T) is not supported on the 2600, but I recall having an older image which did list the interfaces, but I can't recall the image version. Does anyone know what version of IOS will support this module? Rik Message Posted at: http://www.groupstudy.com/form

OT - comparing tcpdump files to identify packet loss [7:55749]

2002-10-16 Thread Larkin, Richard
OT but - Anyone know a useful tool to compare two tcpdump files and show the "difference". I have tried using the diff command on the text output of the files (print the packet header minus the timestamp) and this generally works but is not the nicest due to only comparing the header information.

Software for Statistical Profiling [7:58277]

2002-11-29 Thread Larkin, Richard
I recall in Uni that we used te Poisson distribution and some mathematical formulae to say that if we have x people arrive per hour at a phone booth, and the average phone call is y minutes, we would need z phone booths to ensure that 95% of the time, people don't have to wait (or only have to wait

RE: Software for Statistical Profiling [7:58277]

2002-12-01 Thread Larkin, Richard
>campus? > >Chuck > >-- >TANSTAAFL >"there ain't no such thing as a free lunch" > > > > >""Larkin, Richard"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > >>I recall in Uni that we used te

Traffic Shaping and Queuing [7:59258]

2002-12-15 Thread Larkin, Richard
I want to be able to allocate min guaranteed bandwidth per application as well as use priority queuing for Voice on an edge router. Shall I use Custom queuing, which assigns min bandwidth per application, or CBWFQ (with Traffic Shaping if necessary)? I understand that LLQ (PQ+CBWFQ) is the best ch

RE: CCIE Written Exam [7:59332]

2002-12-17 Thread Larkin, Richard
Why be so pedantic - we should be congratulating the guy on qualifying for the lab not shooting him down with "details". By saying he got his written, he is in no way implying that it is a certification, as you have incorrectly asserted. I would imply that what he "got" is his piece of paper whic

RE: Perhaps O/T: Window TCP Rcv Window [7:59400]

2002-12-17 Thread Larkin, Richard
A much much much easier way is to use a PC, load the dummynet image on a floppy disk, then in about 5 minutes with the right configuration, you have a simulated WAN, including bandwidth and delay. Dummynet works on FreeBSD or, as we do, you can download the version that fits on a floppy and boot f

RE: FR Low Latency Queuing (LLQ) [7:59820]

2002-12-29 Thread Larkin, Richard
This is something I am researching currently. I believe LLQ is CBWFQ+PQ and the PQ is strict. This means that anything above the allocated rate is dropped. This is fine for voice traffic where you reserve say 200kbps for 8 voice calls, and anything more than that is dropped, but not suitable for da

RE: simple network setup [7:59937]

2002-12-29 Thread Larkin, Richard
Yes you can load share - but it wouldn't load share any individual flow - I believe this ensures the order of packet arrival is correct. If a link went down, I'm not sure about the packets in the interface queue (ie, those that had been placed on the outbound interface queue) but I would suspect t

RE: Loading IOS [7:61413]

2003-01-20 Thread Larkin, Richard
I recall years ago that 3Com had a utility that allowed you to place the card in your laptop, reformat the filesystem, then copy the image to it. If there is there a similar utility for Cisco, I'd be interested to know. Rik -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECT

RE: QOS on 2621xm [7:61353]

2003-01-20 Thread Larkin, Richard
What would he do if he had a FR link to a remote site and he wanted to ensure his high priority traffic was sent without DE, whilst low priority traffic can burst and be sent as DE - does FRTS (for Telnet only) solve this problem (if that can be done)? Rik -Original Message- From: mjans00

RE: Policy Routing Question [7:51689]

2002-08-19 Thread Larkin, Richard
You are right in that you are missing the point. The statement is correct - you can decide that voice traffic to the next AS should take path A, and all other traffic take path B (and you do this with multiple route-maps within each router), but once you deliver the datagram to the next AS, it is

RE: Filtering [7:51667]

2002-08-19 Thread Larkin, Richard
NBAR should do this -Original Message- From: Chris Sweeting [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 20 August 2002 4:27 AM To: [EMAIL PROTECTED] Subject: Filtering [7:51667] What is the best tools for fiterring mp3's on a 2600 router in general Message Posted at: http://www.group

RE: Stuck in rxboot mode on 2524 [7:51780]

2002-08-21 Thread Larkin, Richard
We had the same problem last month on an old 4000. The solution, from memory, was to use the config register or boot system command in the conf t global mode. I remember we did o/r 0x2102 and the next boot showed the config reg at 0x2102, but it was still in rxboot mode. I think the next step was

RE: OT: 2 questions [7:51751]

2002-08-21 Thread Larkin, Richard
The real question is how to do all that you mention below AND get paid for it; meaning, what about the other policy development, group meetings, proposal writing, etc, that happen along the way Rik -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Wednesda

RE: Help, Switching Solution with 4006 [7:51799]

2002-08-21 Thread Larkin, Richard
I was told by Cisco that Sup III didn't support IPX routing! Rik -Original Message- From: Wayne Jang [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 21 August 2002 8:29 AM To: [EMAIL PROTECTED] Subject: Help, Switching Solution with 4006 [7:51799] Hi, I am proposing the following LAN sol

RE: Passing Score for MCAST+QOS [7:52470]

2002-09-01 Thread Larkin, Richard
I found it challenging, but certainly not as difficult as the MPLS exam which has a much higher pass mark and I have failed twice to date. For the QoS+Multicast exam, I didn't read the Multicast Cisco Press book, only the IP QoS book, plus some whitepapers/documentation - and I struggled - so I wo

RE: QOS ?? help needed [7:52961]

2002-09-11 Thread Larkin, Richard
Quick question - where does traffic shaping fit into all this. If I do traffic shaping on outbound traffic from a 3640, I presume that occurs AFTER the classification (ie, the shaping is the last step)? Richard Larkin -Original Message- From: Tom Scott [mailto:[EMAIL PROTECTED]] Sent: T

RE: MPLS for 2500 [7:53353]

2002-09-17 Thread Larkin, Richard
Definitely yes with PPP - a new NCP (MPLSCP) provides indication that the frame is an MPLS frame instead of an IP or IPX frame. MPLS is treated as just another network layer protocol. Not sure about HDLC though. Richard Larkin -Original Message- From: Tom Scott [mailto:[EMAIL PROTECTED]

RE: Passed CCIP [7:53549]

2002-09-19 Thread Larkin, Richard
I used the book you are referring too and have failed twice. I have now gone out and bought the Sybex MPLS book and will have another go once my collegue has finished with it. The answer is definitely no - the book is not enough - it only takes a handful of questions to get wrong and you're a gone

RE: CCIE written "revised" [7:53972]

2002-09-25 Thread Larkin, Richard
Yeah I hear you brother. Our company reimburses successful tests and I've just bombed MPLS twice. Every time I bomb, the wife gets to go on a shopping spree worth $AUD190 to balance the equation. Certainly the best incentive to pass I ever had! Rik -Original Message- From: Theodore Stout