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Flow - Wikipedia, the free encyclopedias. Flow, short for "sampled flow", is an industry standard for packet export at Layer 2 of the OSI model. It provides a means for exporting truncated packets, together with interface counters.

PDF files have become very common in everyday work. It’s hard to imagine business proposals without PDFs. The PDF format is used in almost all companies to share. Schneider Electric proposes security guidelines to ensure their customers systems are protected from attack. Obsolete-Variable Speed Curves 2007 Goulds Pumps 4' Submersibles used with Variable Speed Pump Controllers such as the Balanced Flow or Aquavar CPC.

Maintenance of the protocol is performed by the s. Flow. org consortium,[1] the authoritative source of the s.

Flow protocol specifications. The current version of s.

Flow is v. 5. Operation[edit]s. Flow uses sampling to achieve scalability[2] and is, for this reason, applicable to high speed networks (gigabit per second speeds and higher).[3] s. Flow is supported by multiple network device manufacturers[4] and network management software vendors.[5]An s. Flow system consists of multiple devices performing two types of sampling: random sampling of packets[6] or application layer operations,[7] and time- based sampling of counters.[6] The sampled packet/operation and counter information, referred to as flow samples and counter samples respectively, are sent as s.

Flow datagrams to a central server running software that analyzes and reports on network traffic; the s. Flow collector.[8]Flow samples[edit]Based on a defined sampling rate, an average of 1 out of n packets/operations is randomly sampled. This type of sampling does not provide a 1. Counter samples[edit]A polling interval defines how often the network device sends interface counters.

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Flow counter sampling is more efficient than SNMP polling when monitoring a large number of interfaces.[1. Flow datagrams[edit]The sampled data is sent as a UDP packet to the specified host and port. The official port number for s. Flow is port 6. 34.

The lack of reliability in the UDP transport mechanism does not significantly affect the accuracy of the measurements obtained from an s. Flow agent. If counter samples are lost then new values will be sent when the next polling interval has passed. The loss of packet flow samples results in a slight reduction of the effective sampling rate. The UDP payload contains the s. Flow datagram. Each datagram provides information about the s. Flow version, the originating device’s IP address, a sequence number, the number of samples it contains and one or more flow and/or counter samples.

Flow versions[edit]Version. Commentv. 1Initial versionv. Unknown)v. 3Adds support for extended_url information.[1. Adds support BGP communities.[1. Several protocol enhancements.[1.

This is the current version, which is globally supported. Related technologies[edit]There are several other technologies that appear to be similar to s. Flow, usually due to the word "flow" in their name, such as Net. Flow and Open. Flow. These technologies are however fundamentally different from s. Flow and several key differences can be identified: [1. Net. Flow, IPFIX[edit]Net.

Flow and IPFIX are flow export protocols that aim at aggregating packets into flows. After that, flow records are sent to a collection point for storage and analysis.[1. Flow, however, has no notion of flows or packet aggregation at all. Flow allows for exporting packet data chunks and interface counters, which are non- typical features of flow export protocols. Note however that (recent) IPFIX developments provide a means for exporting SNMPMIB variables[1. While flow export can be performed with 1: 1 sampling (i.

Flow, as it was not designed to do so. Sampling forms an integral part of s. Flow, aiming to provide scalability for network- wide monitoring.[1. See also[edit]References[edit]^"s. Flow. org - Making the Network Visible".

Flow. org. Retrieved 2. Jedwab, Jonathan; Phaal, Peter; Pinna, Bob (March 1. Traffic Estimation for the Largest Sources on a Network, Using Packet Sampling with Limited Storage"(PDF).

HP Labs. Retrieved 2. Jasinska, Elisa (December 2. Flow, I can feel your traffic"(PDF). Amsterdam Internet Exchange (AMS- IX). Retrieved 2. 01. 6- 0. Flow Products: Network Equipment". Flow. org. Retrieved 2.

Flow Products: s. Flow Collectors". Flow. org. Retrieved 2.

Phaal, Peter; Lavine, Marc (July 2. Flow Version 5". s. Flow. org. Retrieved 2. Phaal, Peter; Jordan, Robert (July 2.

Flow Host Structures". Flow. org. Retrieved 2. Traffic Monitoring using s.

Flow"(PDF). s. Flow. Retrieved 2. 01. 0- 1. Phaal, Peter; Panchen, Sonia (2. Packet Sampling Basics". Flow. org. Retrieved 2. Liu, G.; Neufeld, N. December 2. 00. 9).

Management of the LHCb network based on SCADA system"(PDF). CERN. Retrieved 2. Port Numbers". IANA. Retrieved 2. 01. 0- 1. Phaal, Peter; Panchen, Sonia; Mc.

Kee, Neil (September 2. Flow Datagram Format". In. Mon Corporation's s. Flow: A Method for Monitoring Traffic in Switched and Routed Networks. IETF. RFC 3. 17. 6. Retrieved 2. 01. 4- 0. Flow Version 5". s.

Flow. org. Retrieved 2. Hofstede, Rick; Celeda, Pavel; Trammell, Brian; Drago, Idilio; Sadre, Ramin; Sperotto, Anna; Pras, Aiko.

Flow Monitoring Explained: From Packet Capture to Data Analysis with Net. Flow and IPFIX". IEEE Communications Surveys & Tutorials (IEEE Communications Society) 1. COMST. 2. 01. 4. 2.

Exporting MIB Variables using the IPFIX Protocol". IETF. Retrieved 2. IP Flow Information Export (IPFIX) Entities". IANA. Retrieved 2. Scalability and accuracy of packet sampling". Flow. org. Retrieved 2. External links[edit].

MGVCL Tenders. MADHYA GUJARAT VIJ COMPANY LTD. Regd. Office: Sardar Patel Vidyut Bhavan, Race Course, Vadodara - 3.

Phone No. 0. 26. 5- 2. Fax No. 0. 26. 5- 2.

E- mail : ceproj. TENDER NO : MGVCL/RAPDRP/SIA/1. Dated    2. 9 - 0. SUB : - Notice for Inviting “Request For Proposal for Appointment of SCADA/DMS Implementation Agency (SIA) for implementation of SCADA under Part- A of R- APDRP from Empanelled list of SCADA/DMS Implementation Agency (SIA) by PFC under GOI’s R- APDRP”. The power distribution company(DISCOM) of Gujarat viz Madhya Gujarat Vij Company Ltd.(MGVCL), Uttar Gujarat Vij Company Ltd.(UGVCL), Paschim Gujarat Vij Company Ltd.(PGVCL) & Dakshin Gujarat Vij Company Ltd.(DGVCL) under the holding company Gujarat Urja Vikas Nigam Ltd.(GUVNL) propose to implement Restructured Accelerated Power Development and Reforms Programme (R- APDRP) Part A of Ministry of Power ,Govt.

India. In order to implement the R- APDRP , MGVCL invites limited tender on behalf of all four DISCOMs from the SCADA/DMS Implementation Agency (SIA) empanelled by nodal agency i. PFC and published on their website (www. RFP for implementation of R- APDRP Part- A scheme. Sealed tenders are invited in quadruplicate in hard copy and one soft copy for Appointment of SCADA/DMS Implementation Agency (SIA) for implementation of SCADA under Part- A of R- APDRP from the empanelled list of SCADA/DMS Implementation Agency (SIA) under R- APDRP. Interested bidders are requested to download tender documents from MGVCL Website WWW. GSEB. COM WWW. GUVNL.

COMWWW. MGVCL. COM  TENDER DOCUMENTS WILL NOT BE ISSUED IN PHYSICAL FORM. The offers complete in all respect should be submitted, superscripting the main cover as " Appointment of SCADA/DMS Implementation Agency (SIA) for implementation of SCADA under Part- A of R- APDRP against MGVCL Tender Enquiry No “MGVCL/ RAPDRP/SIA/1.

Office of Chief Engineer (Project), MGVCL, Vadodara as per the address given above. After downloading the tender documents from the website, the same should be submitted duly completed in scheduled time superscripting Tender cover by “Tender No. MGVCL/RAPDRP/SIA/1. Chief Engineer (Project), MGVCL, Corporate Office, Sardar Patel Vidhyut Bhavan, Race Course, Vadodara- 3. The tender documents should reach latest by 1.

No tender shall be accepted /opened after the due date and time of receipt of tender irrespective of delay due to postal services or any other reasons. MGVCL shall not be responsible for any late receipt of the tender. In case the due date happens to be a holiday, the bids shall be received/opened on the next working day at the same time & place.

Interested bidders may submit the bid document in quadruplicate in hard copy and one soft copy by Registered A. D. Or by Speed Post ONLY (No Courier Service will be allowed). Those who want to submit by hand delivery shall submit only at Common Registry Branch, 6. TH Floor,Sardar Patel Vidhyut Bhavan,Race Course, Vadodara and not to the department. The bid document should superscripting Tender cover by “Tender No. MGVCL/RAPDRP/SIA/1.

Chief Engineer(Project), MGVCL, Corporate Office, Sardar Patel Vidhyut Bhavan, Race Course, Vadodara- 3. In this regard, no follow up should be done by any bidder regarding delivery of the bid. The canvassing of the bid will be out rightly rejected. The brief details regarding tender are as under: Sr.

No. EVENT DESCRIPTION Particular 1 Estimated Cost To be submitted by the Bidder. Download of RFP / Bid Document. Date : 2. 9. 0. 8.

Cost of Bid Document (non Refundable)Tender cost Rs 1. Ten Thousand) by Demand Draft and drawn on a Nationalized bank, in favor of Madhya Gujarat Vij Co. Ltd. Payable at Vadodara. The interested empanelled SIs may download the tender document from website (www.

Bid. 4 Date of Pre- Bid Conference Dt. Hrs. at 3rd Floor, GUVNL Conference Room, Vadodara. Bid Security(EMD)INR Rs.

One Crore & Forty Lacs) in the form of Bank Guarantee from a Scheduled Indian Bank, in favor of Madhya Gujarat Vij Co. Ltd. Payable at Vadodara. Last date for submission of Bids.

Place and time of Opening of the Technical. Bids. Date : 2. 8. Hrs. at 3rd Floor ,MGVCL IT Conference Room, Vadodara(if possible)GENERAL REQUIREMENTS: The Technical cum Commercial and Price bid along with specified Bid Security and cost of Tender documents should reach the office of the Chief Engineer (Project), MGVCL, Corporate Office, Sardar Patel Vidhyut Bhavan, Race Course, Vadodara- 3. Documents towards payment of TENDER FEE AND EARNEST MONEY DEPOSIT (EMD) should be kept in the Bid Security /EMD cover only. First the Bid Security cover will be opened in the presence of the authorized representative of bidders and if the documents towards payment of Tender fee and EMD are found in order then only Cover Containing Technical Bid will be opened . All those who are found technically competent to carry out the job will be considered as qualified bidders and only their financial bid will be opened thereafter.

The sealed envelope containing the price bid will be opened in the presence of the representative of the qualified bidders and the sealed envelopes of financial bid of the non qualified bidders will not be returned. It should be clearly understood that the MGVCL will not reimburse any cost incurred by the bidders for the preparation of offer, site visit, collection of information, signing of contract or negotiations. Bidders should observe a high standard of ethic during the selection process and in the execution of this contract. Any bid i. e. Technical, price or Bid Security cover received after the due date and time will not be accepted and the offer will be categorically ignored without any communication. Bidders have to submit their offer in line with the requirements as specified in the RFP/Bid Document. The bid, even though fulfilling the specified qualifying requirements/criteria as specified in the RFP bid document, are liable to be disqualified in case of non- compliance to the followings by the bidders : - ï‚· The bidder shall not be in litigation with MGVCL. Any litigation against MGVCL shall out rightly disqualify the bidder.ï‚· The bidder should not make misleading or false representations in the forms, statements and attachments submitted in proof of the qualifying requirements.

The Bidder should not have a record of poor performance such as abandoning the works, not properly completing the contract, inordinate delays in completions, litigation history, or financial failures etc. MGVCL or any other utility. The Bidders should not be blacklisted by any company, Board, organization or Government body.

MGVCL reserves all rights to reject any or all tenders without assigning any reasons thereof. Bidders are advised to visit our website www. Bid for any updates.

The Bidder should give a declaration that its bid does not deviate from the RFP , the RFP and any addendum to RFP of PFC as also any modification / elaboration added by MGVCL in the bid document. If the Mo. P, PFC or MGVCL issue any amendment to the RFP / Bid document till the date of opening of this bid document, those amendments will become a part of this document and no separate intimation will be given to empanelled SIAs. This, however, will be no reason for any extension of bid submission date. The bidders are advised to remain updated with the latest amendments issued by Mo. P, PFC & MGVCL.

The directives and amendments issued by Mo. P, PFC & MGVCL will have a superseding effect to the corresponding sections of the RFP. The SIAs are also advised to check Mo. P, PFC & MGVCL websites regularly for any amendment or addendum. After finalization of bidding process, the issuance of Work Order/ Purchase Order and signing of agreement will be done by the individual DISCOMs i: e MGVCL,UGVCL,DGVCL, PGVCL. While the agreement shall be for the entire scope of work for all the DISCOMs, delivery of equipment shall be as per the delivery instructions of the respective DISCOMs.

The respective DISCOMs shall give the delivery instructions depending on the requirement and the expected delivery lead times but within the schedule time line of project. Bidders shall provide cost for each of the Project Area in the bid formats. Thefinancial evaluation of the bid will be done after aggregating the total price quoted for all the four DISCOMs. This aggregated total price will be considered as final quote and will be the basis for financial evaluation. The cost of FMS charges shall be quoted DISCOM wise for all the R- APDRP covered towns of concerned DISCOMs.

The unit prices mentioned for various components should be the same for all Project Areas. In case of any variance in unit prices for different Project Areas, the lowest unit price of equipment mentioned for any Project Area shall be payable.

Seal and signature at all Annexures & all tender documents/specification etc. MUST. On and Behalf of Madhya Gujarat Vij. CO. Ltd. CHIEF ENGINEER (Project) MGVCL, Corporate Office, VADODARATo view the PDF file please use “Acrobat Reader” soft ware which can be downloaded from “Adobe” website For Download Tender Please Click on Below Links.