sFlow.org                                                    Peter Phaal
http://www.sFlow.org/                                        InMon Corp.
info@sflow.org
                                                              Neil McKee
                                                             InMon Corp.


                                                           February 2015


                       sFlow Host TCP/IP Counters



Copyright Notice

Copyright (C) sFlow.org (2015). All Rights Reserved.

Abstract

This memo describes sFlow version 5 structures for exporting host IP,
ICMP, UDP and TCP counters.

Table of Contents

1. Overview ......................................................  1
2. sFlow Datagram Extension ......................................  1
3. References ....................................................  3
4. Author's Addresses ............................................  4

1. Overview

   This document describes additional structures that allow an sFlow
   agent to export information relating to Host IP, ICMP, TCP and UDP
   performance based on MIB-II [1].  sFlow version 5 is an extensible
   protocol that allows the addition of new data structures without
   impacting existing collectors. This document does not change the
   sFlow version 5 protocol [2], it simply defines an additional,
   optional, data structure that a host device can use to report IP
   related metrics.

2. sFlow Datagram Extension

   The sFlow version 5 specification already defines structures for
   reporting MIB-II ifTable statistics. This document defines structures
   for reporting statistics from the IP, ICMP, TCP and UDP groups. This
   information is particularly relevant to hosts exporting sFlow Host
   Structures [3].



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/* IP Group - see MIB-II */
/* opaque = counter_data; enterprise = 0; format = 2007 */

struct mib2_ip_group {
  unsigned int ipForwarding;
  unsigned int ipDefaultTTL;
  unsigned int ipInReceives;
  unsigned int ipInHdrErrors;
  unsigned int ipInAddrErrors;
  unsigned int ipForwDatagrams;
  unsigned int ipInUnknownProtos;
  unsigned int ipInDiscards;
  unsigned int ipInDelivers;
  unsigned int ipOutRequests;
  unsigned int ipOutDiscards;
  unsigned int ipOutNoRoutes;
  unsigned int ipReasmTimeout;
  unsigned int ipReasmReqds;
  unsigned int ipReasmOKs;
  unsigned int ipReasmFails;
  unsigned int ipFragOKs;
  unsigned int ipFragFails;
  unsigned int ipFragCreates;
}

/* ICMP Group - see MIB-II */
/* opaque = counter_data; enterprise = 0; format = 2008 */

struct mib2_icmp_group {
  unsigned int icmpInMsgs;
  unsigned int icmpInErrors;
  unsigned int icmpInDestUnreachs;
  unsigned int icmpInTimeExcds;
  unsigned int icmpInParamProbs;
  unsigned int icmpInSrcQuenchs;
  unsigned int icmpInRedirects;
  unsigned int icmpInEchos;
  unsigned int icmpInEchoReps;
  unsigned int icmpInTimestamps;
  unsigned int icmpInAddrMasks;
  unsigned int icmpInAddrMaskReps;
  unsigned int icmpOutMsgs;
  unsigned int icmpOutErrors;
  unsigned int icmpOutDestUnreachs;
  unsigned int icmpOutTimeExcds;
  unsigned int icmpOutParamProbs;
  unsigned int icmpOutSrcQuenchs;
  unsigned int icmpOutRedirects;



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  unsigned int icmpOutEchos;
  unsigned int icmpOutEchoReps;
  unsigned int icmpOutTimestamps;
  unsigned int icmpOutTimestampReps;
  unsigned int icmpOutAddrMasks;
  unsigned int icmpOutAddrMaskReps;
}

/* TCP Group - see MIB-II */
/* opaque = counter_data; enterprise = 0; format = 2009 */

struct mib2_tcp_group {
  unsigned int tcpRtoAlgorithm;
  unsigned int tcpRtoMin;
  unsigned int tcpRtoMax;
  unsigned int tcpMaxConn;
  unsigned int tcpActiveOpens;
  unsigned int tcpPassiveOpens;
  unsigned int tcpAttemptFails;
  unsigned int tcpEstabResets;
  unsigned int tcpCurrEstab;
  unsigned int tcpInSegs;
  unsigned int tcpOutSegs;
  unsigned int tcpRetransSegs;
  unsigned int tcpInErrs;
  unsigned int tcpOutRsts;
  unsigned int tcpInCsumErrs;
}

/* UDP Group - see MIB-II */
/* opaque = counter_data; enterprise = 0; format = 2010 */

struct mib2_udp_group {
  unsigned int udpInDatagrams;
  unsigned int udpNoPorts;
  unsigned int udpInErrors;
  unsigned int udpOutDatagrams;
  unsigned int udpRcvbufErrors;
  unsigned int udpSndbufErrors;
  unsigned int udpInCsumErrors;
}

3. References

[1]  McCloghrie, K. and Rose, M.  "Management Information Base for Net-
     work Management of TCP/IP-based internets: MIB-II", RFC 1213, March
     1991




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[2]  Phaal, P. and Lavine, M., "sFlow Version 5",
     http://www.sflow.org/sflow_version_5.txt, July 2006

[3]  Phaal, P. and Jordan, R., "sFlow Host Structures",
     http://www.sflow.org/sflow_host.txt July 2010

4. Author's Address

   Peter Phaal
   InMon Corp.
   1 Sansome Street, 35th Floor
   San Francisco, CA 94104

   Phone: (415) 946-8901
   EMail: peter.phaal@inmon.com

   Neil McKee
   InMon Corp.
   1 Sansome Street, 35th Floor
   San Francisco, CA 94104

   Phone: (415) 946-8902
   EMail: neil.mckee@inmon.com




























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