RE: NetFlow ?
NetFlow switching is supported by IOS 11.1 (7200, 7500, and RSP7000 hardware), 11.2 and 11.2P (7200, 7500, and RSP7000), 11.3 and 11.3T (7200, 7500, and RSP7000), 12.0 (1720, 2600, 3600, 4500, 4700, AS5800, 7200, uBR7200, 7500, RSP7000, and RSM), 12.0(3)T and later (1600, 1720, 2500, 2600, 3600, 4500, 4700, AS5300, AS5800, 7200, uBR7200, 7500, RSP7000, RSM, MGX8800 RPM, and BPX 8650). But...Cisco tells me you must have and pay for the Enterprise IOS plus buy a license for each NetFlow collector you export netflow cache data to. Basically, they told me it's illegal to have netflow switching enabled without purchasing the license for it! Yet it's a feature on straight IP IOS! The feature improves (speeds) packet switching and on routers with significantly large acl's can reduce CPU utilization by 50% or more... NetFlow Packaging: "Cisco 7200/7500/RSM---Although NetFlow functionality is physically included in all software images for these platforms, customers must purchase a NetFlow Feature License in order to be licensed for its use. NetFlow licenses are sold on a per-node basis. "Cisco 1000/1600/2500/2600/3600/4000/AS5800 Series--- NetFlow functionality is supported only in Plus images for these platforms. Customers are required to purchase an appropriate Plus image in order to utilize NetFlow functionality on these platforms. If you would like to review the entire Netflow White Paper, you can see it on-line at : http://www.cisco.com/warp/public/cc/pd/iosw/ioft/neflct/tech/napps_wp.htm Roger Gore CCNA CONUS TNOSC Ft Huachuca, AZ [EMAIL PROTECTED] DSN 879-1237 COM 520 538-1237 -Original Message- From: andre F [mailto:[EMAIL PROTECTED]] Sent: Friday, April 06, 2001 13:28 To: [EMAIL PROTECTED] Subject: NetFlow ? Hello, I'm trying to find out about NetFlow. In the past NetFlow was only supported in the higher end routers like the 7000 series. I've noticed that the feature called CEF has enabled NetFlow on lower end routers and switches. Does anyone know if NetFlow or CEF with NetFlow is supported on the 3600 series routers? If so, what are the drawbacks of using it on it? I'm not sure why it was only supported on the higher end equipment, so I'm curious what problems I might run into running it on a lower end router? Or if it's not supported on the 3600 series any suggestions would be appreciated! I don't want to put the money out for something high end like a 7000 series. Thank You, Andre _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Netflow course ???
Why do you require training in a product that you can download, and of which the documentation is 20 pages long? There might be some classes which cover Netflow (and possibly the analyzer and collector tools), for example DCIINS or ATECH, but I don't know anyone who is offering these courses yet. While there is no official training, Cisco (even EMEA) will do personal training for you if you ask your AM or SE. This is probably a question you should be asking them in the first place. -dre ""Jorge Hurtado Antón"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hello all. > Does anybody know if Cisco gives training to use Netflow (Analyzer) ??? > If yes, where in Europe and how much ??? > (If someone knows courses in Spain or can give me a clue, it would be great) > Thanks in advance. > Jorge H. > > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Netflow switching caveats?
I don't think netflow switching is supported on any platform lower that the 7000 series routers - Original Message - From: John Neiberger <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, June 29, 2000 12:00 PM Subject: Netflow switching caveats? > I've never had a chance to play with netflow switching and I'd like to > enable it on a production 2611. Are there any caveats or cautions that I > should be aware of? I've searched CCO and didn't see any warnings regarding > this, but I'd hate to enable it and watch something very unexpected happen, > especially considering the size of the branch that this router services. > :-) I've been down that road before, and I didn't like the trip! > > TIA, > John Neiberger, CCNA/CCDA > > > > > > ___ > Get 100% FREE Internet Access powered by Excite > Visit http://freelane.excite.com/freeisp > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Netflow switching caveats?
CEF is supported on all platforms from version 12, perhaps netflow as well? Should I enable CEF on my 2600s? What do you think? Francisco Muniz. Chris Nwanonyiri <[EMAIL PROTECTED]> escribió en el mensaje de noticias 01e901bfe1e9$7f705100$[EMAIL PROTECTED] > I don't think netflow switching is supported on any platform lower that the > 7000 series routers > > > > - Original Message - > From: John Neiberger <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, June 29, 2000 12:00 PM > Subject: Netflow switching caveats? > > > > I've never had a chance to play with netflow switching and I'd like to > > enable it on a production 2611. Are there any caveats or cautions that I > > should be aware of? I've searched CCO and didn't see any warnings > regarding > > this, but I'd hate to enable it and watch something very unexpected > happen, > > especially considering the size of the branch that this router services. > > :-) I've been down that road before, and I didn't like the trip! > > > > TIA, > > John Neiberger, CCNA/CCDA > > > > > > > > > > > > ___ > > Get 100% FREE Internet Access powered by Excite > > Visit http://freelane.excite.com/freeisp > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Netflow switching caveats?
Actually - I think it's possible on everything from the 2600 up. I *think* the GSR's only support CEF though.. I've personnaly used it on 3600, 4000, and all 7000. Can't remember using it on 2600's but I'm sure you can. May even be available on the 1600 and 1700 series. Though I don't think you'll have any problems, one thing to make sure you have if enabling it remotely - console connectivity!!! Just in case. Remember if you run a "debug ip packet" with fast/netflow switching, you will not see anything. For debug to work, the packets must be process switched. Kenny - Original Message - From: "Chris Nwanonyiri" <[EMAIL PROTECTED]> To: "John Neiberger" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, June 29, 2000 9:45 AM Subject: Re: Netflow switching caveats? > I don't think netflow switching is supported on any platform lower that the > 7000 series routers > > > > - Original Message - > From: John Neiberger <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, June 29, 2000 12:00 PM > Subject: Netflow switching caveats? > > > > I've never had a chance to play with netflow switching and I'd like to > > enable it on a production 2611. Are there any caveats or cautions that I > > should be aware of? I've searched CCO and didn't see any warnings > regarding > > this, but I'd hate to enable it and watch something very unexpected > happen, > > especially considering the size of the branch that this router services. > > :-) I've been down that road before, and I didn't like the trip! > > > > TIA, > > John Neiberger, CCNA/CCDA > > > > > > > > > > > > ___ > > Get 100% FREE Internet Access powered by Excite > > Visit http://freelane.excite.com/freeisp > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Netflow switching caveats?
I have been at Networks 2000 all week. They have done nothing but tout CEF everywhere - turn it on everywhere. My personal experience is that it greatly improved the performance on a 7206. We turned it on in every router in this class. I have not tried it on smaller routers - though I dont see why it would hurt. I would make sure that the CPU and memory on your routers is currently running at a decent level before turning something new on. If you are using access lists, it will really help the performance. Only the 1st packet in a flow goes through process switching - instead of each one. -Original Message- From: Francisco Muniz [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 29, 2000 11:20 AM To: [EMAIL PROTECTED] Subject: RE: Netflow switching caveats? CEF is supported on all platforms from version 12, perhaps netflow as well? Should I enable CEF on my 2600s? What do you think? Francisco Muniz. Chris Nwanonyiri <[EMAIL PROTECTED]> escribió en el mensaje de noticias 01e901bfe1e9$7f705100$[EMAIL PROTECTED] > I don't think netflow switching is supported on any platform lower that the > 7000 series routers > > > > - Original Message - > From: John Neiberger <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, June 29, 2000 12:00 PM > Subject: Netflow switching caveats? > > > > I've never had a chance to play with netflow switching and I'd like to > > enable it on a production 2611. Are there any caveats or cautions that I > > should be aware of? I've searched CCO and didn't see any warnings > regarding > > this, but I'd hate to enable it and watch something very unexpected > happen, > > especially considering the size of the branch that this router services. > > :-) I've been down that road before, and I didn't like the trip! > > > > TIA, > > John Neiberger, CCNA/CCDA > > > > > > > > > > > > ___ > > Get 100% FREE Internet Access powered by Excite > > Visit http://freelane.excite.com/freeisp > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Netflow switching caveats?
i agree with the previous message. i don't think it is supported anything under 7000. however, you will not see the command that is not supported in the config mode. i should not be 100% sure but i think it has been the tendancy. besides running netflow on 2XXX, you wnat to run netflow on core and possibly on distribution. not access-layer. read document man. everything is there. --- FREE! The World's Best Email Address @email.com Reserve your name now at http://www.email.com ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NetFlow Error [7:9491]
Dude, this is really something for CCO bugfinder or cisco TAC to handle... Anyone else seen it? - Original Message - From: "Sergey Konovalov" To: Sent: Friday, June 22, 2001 5:56 AM Subject: NetFlow Error [7:9491] > Hi 2 All > > We have received a abnormal situation, when we try to > use NetFlow feature with external receiver: > > ip route-cache flow > ip flow-export > > After that, router has been restarted with error > message: > > signal= 0xb, code= 0x1200, context= 0x80931ef8 > PC = 0x80150b74, Vector = 0x1200, SP = 0x809bb380 > > Some of tech-support: > > > show version > - > System restarted by error - a SegV exception, PC > 0x80150B74 at 16:09:27 EET Wed Jun 20 2001 > > > > > -- show stacks -- > Minimum process stacks: > Free/Size Name > 5644/6000 CDP Protocol > 9880/12000 Init > 5380/6000 RADIUS INITCONFIG > 7872/9000 DHCP Client > 9988/12000 Exec > 9100/12000 Virtual Exec > 10464/12000 TCP Remote Shell > > Interrupt level stacks: > LevelCalled Unused/Size Name > 140977623 7632/9000 Network interfaces > 2 0 9000/9000 Timebase Reference > Interrupt > 3 0 9000/9000 PA Management Int Handler > 62292 8884/9000 16552 Con/Aux Interrupt > 736547843 8916/9000 MPC860 TIMER INTERRUPT > > System was restarted by error - a SegV exception, PC > 0x80150B74 > C2600 Software (C2600-I-M), Version 12.0(2)XC2, EARLY > DEPLOYMENT RELEASE SOFTWARE (fc1) > > >What kind of problem it is? And how we can fixed it? > > ___ > Do You Yahoo!? > Get your free @yahoo.ca address at http://mail.yahoo.ca Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=9559&t=9491 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: netflow services [7:35199]
Hi Ramesh, this is what Cisco says about Netflow: ´What Is a Flow? A flow is identified as a unidirectional stream of packets between a given source and destination—both defined by a network-layer IP address and transport-layer source and destination port numbers. Specifically, a flow is identified as the combination of the following seven key fields: Source IP address Destination IP address Source port number Destination port number Layer 3 protocol type ToS byte Input logical interface (ifIndex) These seven key fields define a unique flow. If a flow has one different field than another flow, then it is considered a new flow. A flow contains other accounting fields (such as the AS number in the NetFlow export Version 5 flow format) that depend on the version record format that you configure for export. Flows are processed in a NetFlow cache. NetFlow only supports accounting for IP unicast traffic flow.´ That means that even one packet that travels between a source and a destination device is considered a flow. Netflow is only supported on routers, since it needs to look at IP information in the packets. The following platforms support Netflow: Cisco 7000 series VIP Cisco 7500 series VIP Cisco 7000 series Cisco 1400 series Cisco 1600 series Cisco 2500 series Cisco 2600 series Cisco 3600 series Cisco 4000 series Cisco AS5800 There is a really good article on the Cisco site about Netflow, go to: http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/netflsol/nfwhite.htm#xtocid286794 Regards, Georg Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35207&t=35199 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: NetFlow Technology [7:70725]
Do you want it for your wan/accounting or lan/security? Try fprobe, a free ntop clone. http://fprobe.sourceforge.net/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=70859&t=70725 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Netflow, IP Accounting and RMON [7:62489]
www.google.ca -- Regards, Steve ""Ivan Yip"" wrote in message news:[EMAIL PROTECTED] > Dear All, > > Can anyone share some useful links for me to explain the above items? > I am quite confused about them. > > Thanks in advance. > > rgds, > Ivan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66030&t=62489 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
