z**r
发帖数: 17771 | 1 only true when igmp snooping is enabled, otherwise, multicast will be
treated like broadcast, so one doens't have to join any mcat group to
receive ospf updates |
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s**u
发帖数: 17 | 2 So that is the key.
We must know the detail about how the igmp snooping works... what kind of
packet it tracks...
Any guy knows ?
thanks
a |
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s*****g
发帖数: 1055 | 3 来自主题: EmergingNetworking版 - DHCP问题 Rouge DHCP server is a very common problem in enterprise internal network,
so DHCP snooping is now a must have feature on access switches. |
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z**r
发帖数: 17771 | 4 有肯定还是有的，不管几G，从cell site总得出来吧，厚厚。而且这段是所有运营成本
里占最大头的一块儿，怎么可能没有了。4G里照样需要aggregation。
这段backhual可以是layer 2（比如纯carrier ethernet），也可以是layer 3（纯IP网
），也有layver 3 over carrier ethernet，最后这个可能在美国更加普遍些，因为不
管哪家的coverage都没有那么大，很多都要租用其他家的carrier ethernet。
不管哪种，都可以有multicast需求，纯layer 2（其实也是一张layer 3/mpls网，只不
过上面提供EVC而已）有IGMP Snooping的需求，layer3的就不用说了，现在新的cell
site router一个重要feature就是要支持PIM，不过大部分只需要static RP就可以，没
有auto-RP or BSR的需求。毕竟现在有刚性需求的BACKHUAL还很少很少，不代表1、2年
之后需求不强劲。而且现在好多项目都被IPV6给占了。
对于基于PON的backhaul，不是很熟悉... 阅读全帖 |
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z**r
发帖数: 17771 | 5 I cannot think of any problems for that, since MLD is layer 2 snooping? what
's your concern? |
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z**r
发帖数: 17771 | 6 I cannot think of any problems for that, since MLD is layer 2 snooping? what
's your concern? |
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he
发帖数: 2025 | 7 得问安全方面的大拿，电话这边99%不会考虑这些，剩下那个特例因为是业余黑客，
这个会上的几个人他都认识，嘎嘎。
午饭的时候问了下安装组，有没有IP source guard, DHCP snooping之类，回答很
干脆，从来没有过! |
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e*****n
发帖数: 109 | 8 IMO, DHCP snooping should be in place at a minimum. |
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t****t
发帖数: 6806 | 9 well, some switch may have igmp snooping function which is optimized for
multicasting. so there are some differences on hardware indeeed. but a
regular switch will just convert multicast to broadcast so that the network
will function anyway.
so i asked you what you meant by "multicast". in home usually multicast
means broadcast. |
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a*****a
发帖数: 1429 | 10 这个路由器的Firmware有基本的IPS/IDS功能，用的是Snoop。华硕称之为AiProtection
。这个打开的话，速度会降一些。最多20%速度
如果使用site-to-site VPN，这个路由器大概最大速度在150M 以下。
家用如果需要好的QoS，好点IPS/IDS，需要速度比较快的site-to-site VPN，得装软路
由。 |
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d*****e
发帖数: 7368 | 11 If your school use Layer 2 security, like dot1x, DHCP snooping,
then that rely on your MAC address. That is your ethernet card address,
not motherboard address. Most likely, it's in this situation.
Talk with your sys admin, and registry your laptop in. |
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l***y
发帖数: 791 | 12 not only that, but your voice&video goes to the internet, which
might not be a good idea if someone is snooping :0~ |
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w********e
发帖数: 557 | 13 以前用ethereal时做过类似的事。现在叫wireshark，你可以试试。 |
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a********7
发帖数: 72 | 14 这两个命令在Linux里能用吗?如果不同用的话,可以用什么代替?
谢谢啊
学校里负责装实验室的白人死活就说sock没办法用.... |
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x*z
发帖数: 1010 | 15 this is beyond linux and pretty much has nothing to do with linux at all.
snoop filter is mostly a hardware implementation to keep the coherency of
caches. |
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k***r
发帖数: 4260 | 16 There is a unix command that split text in columns and only
keep the columns you need but i forget what that is ...
Worst case is to write a simple python script. Probably
less than 10 lines.
200 |
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h**o
发帖数: 548 | 17 Thanks you are talking about
cut -d' ' -f |
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a*********a
发帖数: 3656 | 19 果蝇还是回去刷试管吧。你关家里啃一万年C++，对美国的贡献赶不上snoop dog一根阴
毛的。 |
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m*********a
发帖数: 3299 | 20 好像你的贡献对美国赶的上snoop dog一根阴毛的？
回你的地下室撸管去吧，别忘了吃脑残片。 |
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t*******g
发帖数: 89 | 22 snoop -v -o /tmp/test ? |
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z**********g
发帖数: 2 | 23 Hi, there.
Does anybody know how snoop into a system V message
queue?
What I hope to get is the actual info flow of that
queue but not the control info.
Thanks
James |
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u*********d
发帖数: 8 | 24 http://news.yahoo.com/news?tmpl=story&u=/nm/20040413/tc_nm/tech_microsoft_secu
rity_dc_2
Microsoft Warns of 3 'Critical' Flaws in Windows
Tue Apr 13, 3:47 PM ET Add Technology - Reuters to My Yahoo!
By Reed Stevenson
SEATTLE (Reuters) - Microsoft Corp. (NasdaqNM:MSFT - news), the world's
largest software maker, warned on Tuesday that three "critical"-rated flaws in
the Windows operating system and other programs could allow hackers to sneak
into personal computers and snoop on sensitive data.
T |
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m********a
发帖数: 239 | 25 See here:
"At its Dec. 2 meeting, the senate approved a four-year trial of a plan
to allow clinical fellows and postdoctoral scholars holding MD or MD/PhD
degrees to serve as principal investigators on grants awarded by the
National Institutes of Health."
http://med.stanford.edu/ism/2010/december/postdocs-1213.html
and here:
"Anyone who the submitting institution deems to be a PI can serve as the
PI. Job title or status is immaterial as far as the NIH is concerned."
"Point being that if you are ... 阅读全帖 |
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b*******n
发帖数: 8420 | 26 你把生物学的hypothesis的验证方法和统计学的hypothesis的验证方法混为一谈了。
data snooping的原因就是对于data的过分解释，这就是hypothesis driven的一个弊端。
另外没有你所说的这个flow，一样可以做出伟大的科学。不少药物在上市之后若干年都
不知道具体的作用机理如何，根本就不需要对它的作用机理提出任何hypothesis并进行
验证，但是这不影响这个药物的应用，比如aspirin.同样，流行病学调查也是可以没有
hypothesis的，但是这些调查数据一样可以提供有用的信息。
to
fabricating
conlusion |
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s*****w
发帖数: 2065 | 27 没看明白啊
世界总是多样化的，什么样的组合都有可能
选择合适自己的路走就好了
何必苛求统计规律
适合整体的不一定适合你个体啊
不要犯data snooping的错误 |
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d******x
发帖数: 44 | 28 碰到了第二个回帖的热心人,好感动!
我知道不应该按照统计规律的结果要求自己,因为如果统计的话那么这个世界上绝大多
数人都是创造巨额财富方面的失败者,任何一个不甘平庸的人是想创造奇迹,成为显然是
要努力逃出这样的统计律的.但是我是信仰客观规律的存在的,创造奇迹的人,不论是实
业方面还是政治军事科研学术等等方面的都没有违背而是遵循了某些客观规律和必然性
的,似乎每个那样的人成功的道路
都不同,但是既然是规律,那一定是具有普适性和重复性的,如果普适性和重复性比较小,
那至少说明还不是深刻的规律和本质.如果懂得了这些规律,那么就可以知道自己所选择
的道路是否愚蠢,是否真的适合自己,是否值得投入时间走下去.我觉得人生前行的路上
勇气和智慧都很重要,而且勇气似乎应该建立在智慧的基础上,否则只是蛮勇撞大运,会
把人引向毁灭的深渊.
谢谢你的DATA SNOOPING 的概念，孤陋寡闻，第一次听说，GOOGLE 一下给自己扫扫盲
：） |
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d******x
发帖数: 44 | 29 嘿嘿,WIKIPEDIA 上读了 DATA SNOOPING 的解释，感觉把概率论和统计学的概念吃透还
是很重要的，个人相信它是归纳逻辑的科学基础，而归纳逻辑则是整个近现代实证科学
（包括管理学经济学这样的社会科学）科研的严格基础，学好了应用于生活应用于科研
，可以更好的拥有CRITICAL THINKING， 可以少制造一些学术泡沫和垃圾，人生可以更
成功一些，因为与真理更接近一些 ：）我少的可怜的时间啊。。。 |
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u*****0
发帖数: 156 | 30 peak = peek = snoop = glimpse?
we
things
at |
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G*****3
发帖数: 71 | 31 How do you guys normally handle multi demensional optimisation on your modal
? If you have more than 2 parameters to snoop, how would you seperate them
and build a readable surface chart to do regression?
Thanks |
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z*******n
发帖数: 1034 | 33 Google argues it didn’t violate the U.S. Wiretap Act when it tapped into
unencrypted Wi-Fi networks to collect data for its Street View mapping
project. The highest court in the United States disagrees.
The Supreme Court today declined to hear Google’s challenge to a federal
appeals court ruling that the Wiretap Act covers data on unencrypted, in-
home Wi-Fi networks. That means Google must face the class-action lawsuit
alleging the company illegally snooped on people from 2008 to 2010 to
bolste... 阅读全帖 |
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w*******y
发帖数: 60932 | 34 Hi fellow 's,
I was at Sears last night picking up my MMA Red punching bag (THANK YOU SD!)
and my Gloves when I did a snooping around the fitness center and found
that a LOT of their items are on clearance right now. They had billiard pool
sticks which were going for 79.99 down to 17.88 or something like that. I
ended up getting a bunch of Yoga stuff as there were a lot of them on
clearance and got some good stuff. I wish I could provide the sku's to each
item but on the sales receipt that came ... 阅读全帖 |
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w*******y
发帖数: 60932 | 35 Pack includes the lip-dub versions of 8 music videos: 50 Cent "In Da Club,"
The All-American Rejects "Gives You Hell," Diddy-Dirty Money "Coming Home,"
Far East Movement "Rocketeer," Lady Gaga "Bad Romance," Maroon 5 "Makes Me
Wonder," Snoop Dogg "Drop It Like It's Hot" and Weezer "Pork and Beans."
Note: Yoostar scenes are often available both as single video clips and in
scene packs. Please consider your purchase carefully before downloading.
File will require extra time to download.
Link:
http... 阅读全帖 |
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w*******y
发帖数: 60932 | 37 Link:
http://www.42photo.com/pd-productid-97504-k-canon_eos_rebel_dig
Hey guys, I was snooping and found this deal from 42nd St Photo. I know they
are not an authorized canon dealer, but this seems like a really good deal
if you are willing to for go the warrenty.
Regular Price: $699.99
Sale: -$150
Sale Price: $549.99
Free Shipping, No Tax
Happy Hunting.
|
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w*******y
发帖数: 60932 | 38 Especially for those of us lucky enough to be in central Texas or those
enjoying north Georgia, GT Distributors has used Gen 2 Model 22 (.40cal)
Glocks for $289. If you snoop around the site, you'll find that GT is a
HUGE LE and Military showroom and distributor. New Glock sales are
restricted, but these trade-ins are available to us civilian types.
Even if you're not looking for this Glock, their catalog makes for some fun
'window' shopping. I went to their "Glock-tober Fest" back in the fal... 阅读全帖 |
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w*******y
发帖数: 60932 | 39 Saw this while browsing Groupon. I don't have any experience with this
particular tablet but it looks like it has decent specs, comes pre-rooted
and ready for ICS. Might be a decent tablet for someone looking for an
inexpensive tablet to play around with.
Overview
The Skypad Alpha2 races into action at the lightest touch, summoning the
Internet, movies, music, games, and Cthulhu with its 1.2-gigahertz ARM
Cortex-A8 processor. The tablet connects to WiFi connections, allowing
fingertips to per... 阅读全帖 |
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m**o
发帖数: 323 | 41 早
今天闹钟snoop了10次，经过40分钟斗争我才起来。。。 |
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w*****g
发帖数: 16352 | 42 时下美国流行rap, ssgg十分的不吃香.
比如backstreeboys, 以前我刚来美国时,还决的他们挺不错的.
现在很受不了他们. 不过有他们的一些老MTV.
再如N'SYNC, 整个一帮弱智猪头. 那首it's gotta be me简直是土的掉渣.
他们的MTV我是一个也不当的.
其他的ssgg嘛, ricky martin算一个. enrique Iglesias一般, 他脸上那个瘊子比较
刹风景. Mark Anthony声音可以,人长的太差.robblie williams是英国的吧, 也不
ss, 他的那个rock DJ倒是挺EE的. hoho
至于rap, 那要长的越难看,穿得越怪才有特色, 比如Jay-Z, 比如dr. Dre, 比如
snoop dogg. DMX算长的比较顺眼的. 我现在有时看看rap MTV, 以前是不能接受的.
现在taste变了.
不过,总的来说,我觉的现在美国歌坛挺萧条的,和TMD经济似的. 不知道夏天来了,
有没有新东西出来. 最近印象深点的就是faint hill那个珍珠港了. sigh. |
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