search for: atm

I am trying to replicate part of the EuropeanOptionExample using my date. I have a data.frame containing all my inputs atm.vols<-subset(data.vols,moneyness==min); #Some days have the abs(moneyness) exactly between two strike prices, #Traders will alway price an option at the higher vol when selling it, so we will too. atm.vols.max<-data.frame(vol.max=tapply(atm.vols$sigma,INDEX=factor(atm.vols$date),max)); #y&lt...

Hi, I use the patch (http://ace-host.stuart.id.au/russell/files/tc/tc-atm/) for accurate the packet scheduling on ATM/ADSL link and i think I''ve found a bug. I tried to write to the author but he didn''t answer me. I work on a Linux 2.6.17 with the iproute2-2.6.18-061002 package. I change the type of the cell_align char to short of the struct tc_ratespe...

I have been trying to optimise my ADSL connections for VOIP. Funny things were happening - for example increasing the ping packet size by 50% had no effect, but then adding one byte had a major effect. It took me a while to figure out that I was seeing the effects of the fixed ATM cell size. This is probably obvious to some of you. For the rest: ADSL uses ATM as its transport. An ATM "packet" is called a cell. A cell has a fixed length of 48 bytes of data, plus 5 bytes of header. If there is not enough data to occupy the cell, padding is added. Thus if you g...

I have a situation where this is fine: > if (length(x)>15) { clever <- rr.ATM(x, maxtrim=7) } else { clever <- rr.ATM(x) } > clever $ATM [1] 1848.929 $sigma [1] 1.613415 $trim [1] 0 $lo [1] 1845.714 $hi [1] 1852.143 But this variant, using ifelse(), breaks: > clever <- ifelse(length(x)>15, rr.ATM(x, maxtrim=7), rr.AT...

I had originally mentioned this only to 2 people, which was Jordan K. Hubbard and Paul Henning-Kemp, but since I have received a lot of queries on this, I thought I might as well post it on the FreeBSD announce groups. Included below is a posting done on the Linux-atm mailing group, by Pragnesh Sampat. I have just adapted for FreeBSD. RV -------------------------- Announcement ---------------------------------- Note: This posting is somewhat commercial in nature. FORE Systems is interested in enabling an ATM driver for FreeBSD. For the unfamiliar, FORE Syste...

Does anyone here have experience with an ATM connection from their ISP running into a linux based router? We have a DS3 circuit for which we we thought we could use an SBE wanpci-1t3 card. The isp verified the card would work with their network, but apparantly didn''t cross check the particular circuit they were providing us. Is it...

Hi all, I patch my kernel (2.6.17) and my tc (iproute2-2.6.18-061002) utilitie for an accurate packet scheduling on an ATM link. I configure my HTB hierarchy on the upload of the link and try with differents flows. It works correctly but in some of case I lose about 50% of my bandwith. I use the overhead (42) configuration for my link (PPPoE, VC/LLC) indicate in the documentation. My question is, how this hoverhead va...

I know there is that handy patch available to very efficiently use ATM bandwidth, but I was wondering what the best values to use with a non-patched iproute2 would be. Anyone here care to check my logic in coming up with these numbers and perhaps suggest better values? My transmit speed is 768kbps per ADSL line (I have two). This is the HTB shaping I do on the...

This patch fixes the following compile error with CONFIG_BRIDGE=y and CONFIG_ATM_LANE=m: <-- snip --> ... LD .tmp_vmlinux1 net/built-in.o(.init.text+0x3ad1): In function `br_init': : undefined reference to `br_fdb_get_hook' net/built-in.o(.init.text+0x3adb): In function `br_init': : undefined reference to `br_fdb_put_hook' net/built-in.o(.exit.t...

The Applied Research Lab (ARL) of Washington University and the ATOMIC-2 Project at USC/ISI are pleased to announce the availability of a BSD device driver for the Adaptec 590x series of PCI ATM host adaptors (eg ANA-5940) Written by Chuck Cranor of Washington University's ARL (chuck@ccrc.wustl.edu), the "MIDWAY" ATM device driver originally supported Efficient Network's PCI ATM 155Mbps cards under FreeBSD, NetBSD, and OpenBSD. Working with Anne Hutton of USC/ISI...

Is there any interest in having ATM support for the various digium T1 cards? dave -- Dave Weis "I believe there are more instances of the abridgment djweis@sjdjweis.com of the freedom of the people by gradual and silent encroachments of those in power than by violent...

Hi all, we have a very large customer (90'000 PCs) worldwide that has problems with a Samba server. Here are the details : platform : IBM 4-cpu server runing AIX 4.3 Samba : 2.2.7a compiled with gcc 2.95.3 clients : about 100-200, worldwide network : ATM, at least for the server (I don't have more details, sorry) samba config : pretty straightforward, security=server (might be changed to "domain" soon), a few shares, etc. The problem appeared since clents migrated to Windows XP. About every 2 days, the network receive queue overflow,...

Hi there.I''m Brenda from the Australia,I wanna work on a project relating to VOIP QoS.I wanna evaluate IP over ATM against IP over Ethernet on the following parameters relating to voice and video traffic; bandwidth consumption packet loss packet delay(latency) jitter traffic thoroughput Is this project feasible?Can I use NS to simulate the models?I hope you reply.Thanks. Best regards. _____________________...

...at 163.com QAContact: swfdec at lists.freedesktop.org When open www.youku.com, firefox will crash ,but enter to its sub pages, Everything seems all right. running from terminal ,it gives out Loading stream: http://static.youku.com/v1.0.0322/v/swf/qplayer.swf Loading stream: http://static.atm.youku.com/200808/0826/BJ194/banner3_300x100.swf?url=http%3A%2F%2Fvid.atm.youku.com%2Fhtmlclick%3Fp%3D25%26ca%3D4447%26ie%3D4429%26k%3D%26u%3Dhttp://adclk.thinkmedia.cn/adclick/pid=1116/media=YOUKU.CN/place=MAIN/size=300x100 Loading stream: http://static.atm.youku.com/200809/0903/Y104/280x30.swf?url...

Hi, I am trying to plot multiple lines on a graph. The function is particularly simple: sigma<-function(lambda) atm-2*rr*(lambda-0.5)+16*str*(lambda-0.5)^2 which uses the variables atm, rr and str... I define these as such: atm<-0.4 rr<-0.2 str<-0.1 and this plots fine: plot(seq(0.01,0.99,0.01),sigma(seq(0.01,0.99,0.01)),ylim=c(0,1)) Now, I want to plot the same function for different values of s...

...d download, but if there aren''t onbound traffic, who is doing a download will get 100% of bandwidh and if there aren''t inbound traffic, who is doing a upload will get 100%, but if there are both inbound and outbount traffic, each one get limited to 50%. I think this is similar to ATM classes _with a twist_. I could put download ATM traffic in VBR(Variable Bit Rate), and put upload in ABR (Available Bit Rate). If there aren''t VBR traffic, ABR could use the full bandwidth. Thanks, Tiago __________________________________________________ Do You Yahoo!? Tired of spam?...

It seems Andreas Klauer''s fairnat has experimental support for using HTB''s MPU and overhead options. fairnat.config: # Use MPU for HTB. From the LARTC Howto on MPU: # "A zero-sized packet does not use zero bandwidth. For ethernet, no packet # uses less than 64 bytes. The Minimum Packet Unit determines the minimal # token usage for a packet." HTB_MPU=0 # HTB_MPU=64

...e are my questions 1. what is the current state of these patches? are they in a specific version? do i have to patch myself? 2. how do i actually use this once patched in? an example script would work great! 3. is there a table for us mere mortals that describes how to figure out which type of adsl/atm i''m using so i can set the appropriate overhead? thanks for all the great work on QOS! nate

Hello, I'm having problems using SAMBA servers within an IP over ATM network. I'm using experimental IP addresses (net 192.168.28.0), Linux servers with the 2.2.1 kernel version and RedHat 5.2, Win95 and WinNt 4.0 client machines. The problem is, through Ethernet everything works the way it should. Using ATM and keeping the Ethernet cables connected somehow the...

I Patch the kernel and tc with ''Patches to Linux''s traffic control engineto allow it to accurately calculate ATM traffic rates'' I use a router with eth0 e adsl interface, i launch this script to have shaping on eth0 egress interface: tc qdisc add dev eth0 root tbf rate 10000000 burst 100k latency 20ms mtu 1500 mpu 64 i The traffic enters on adsl and go out on eth0 , but the problem is rate limit o...