NetFlow

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| Welcome to '''NetFlow DocWiki'''.  
| Welcome to '''NetFlow DocWiki'''.  
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Cisco IOS NetFlow efficiently provides a key set of services for IP applications, including network traffic accounting, usage-based network billing, network planning, security, Denial of Service monitoring capabilities, and network monitoring. NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Cisco invented NetFlow and is the leader in IP traffic flow technology.
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Cisco IOS NetFlow efficiently provides a key set of services for IP applications, including network traffic accounting, usage-based network billing, network planning, security, Denial of Service monitoring capabilities, and network monitoring. NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Cisco invented NetFlow and is the leader in IP traffic flow technology. <br> NetFlow version 9, the latest Cisco IOS NetFlow innovation, is a flexible and extensible method to record network performance data. It is the basis of a new IETF standard. Cisco is currently working with a number of partners to provide customers with comprehensive solutions for NetFlow-based, planning, monitoring and billing.  
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<br>
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NetFlow version 9, the latest Cisco IOS NetFlow innovation, is a flexible and extensible method to record network performance data. It is the basis of a new IETF standard. Cisco is currently working with a number of partners to provide customers with comprehensive solutions for NetFlow-based, planning, monitoring and billing.
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!!!!!!!!! DRAFT !!!!!!!!!!!!
 
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__TOC__
 
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<br>
 
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= NetFlow DocWiki Navigation =
 
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*[http://www.cisco.com/en/US/technologies/tk648/tk362/technologies_white_paper09186a00800a3db9.html  NetFlow Version 9 Flow-Record Format]
 
-
*[[NetFlow:PfR | Performance Routing NetFlow]]
 
-
 
-
<br>
 
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<br>
 
-
 
-
= Summary =
 
-
 
-
* IDs <128 : specific to Cisco and NetFlow v9
 
-
* IDs Range 128 - 32767 : allocated by IANA for IPFIX, in NetFlow v9 for parity
 
-
* IDs > 32768 : IPFIX Enterprise Specific
 
-
 
-
<br>
 
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<br>
 
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= Fields 1-128 (Specific to Cisco) =
 
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<br>
 
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<br>
 
-
 
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{| width="800" border="1" cellpadding="1" cellspacing="1"
 
-
|-
 
-
! scope="col" bgcolor="#FFE0C8" | Field Type
 
-
! scope="col" bgcolor="#FFE0C8" | Value
 
-
! scope="col" bgcolor="#FFE0C8" | Len (bytes)
 
-
! scope="col" bgcolor="#FFE0C8" | Description
 
-
|-
 
-
| IN_BYTES
 
-
| 1
 
-
| N (default is 8)
 
-
| Incoming counter with length N x 8 bits for number of bytes associated with an IP  Flow.
 
-
|-
 
-
| IN_PKTS
 
-
| 2
 
-
| N (default is 8)
 
-
| Incoming counter with length N x 8 bits for the number of packets associated with an IP Flow
 
-
|-
 
-
| FLOWS
 
-
| 3
 
-
| N
 
-
| Number of flows that were aggregated; default for N is 4
 
-
|-
 
-
| PROTOCOL
 
-
| 4
 
-
| 1
 
-
| IP protocol byte
 
-
|-
 
-
| SRC_TOS
 
-
| 5
 
-
| 1
 
-
| Type of Service byte setting when entering incoming interface
 
-
|-
 
-
| TCP_FLAGS
 
-
| 6
 
-
| 1
 
-
| Cumulative of all the TCP flags seen for this flow
 
-
|-
 
-
| L4_SRC_PORT
 
-
| 7
 
-
| 2
 
-
| TCP/UDP source port number e.g. FTP, Telnet, or equivalent
 
-
|-
 
-
| IPV4_SRC_ADDR
 
-
| 8
 
-
| 4
 
-
| IPv4 source address
 
-
|-
 
-
| SRC_MASK
 
-
| 9
 
-
| 1
 
-
| The number of contiguous bits in the source address subnet mask i.e. the submask in slash notation
 
-
|-
 
-
| INPUT_SNMP
 
-
| 10
 
-
| N
 
-
| Input interface index; default for N is 4 but higher values could be used
 
-
|-
 
-
| L4_DST_PORT
 
-
| 11
 
-
| 2
 
-
| TCP/UDP destination port number e.g. FTP, Telnet, or equivalent
 
-
|-
 
-
| IPV4_DST_ADDR
 
-
| 12
 
-
| 4
 
-
| IPv4 destination address
 
-
|-
 
-
| DST_MASK
 
-
| 13
 
-
| 1
 
-
| The number of contiguous bits in the destination address subnet mask i.e. the submask in slash notation
 
-
|-
 
-
| OUTPUT_SNMP
 
-
| 14
 
-
| N
 
-
| Output interface index; default for N is 4 but higher values could be used
 
-
|-
 
-
| IPV4_NEXT_HOP
 
-
| 15
 
-
| 4
 
-
| IPv4 address of next-hop router
 
-
|-
 
-
| SRC_AS
 
-
| 16
 
-
| N (default is 2)
 
-
| Source BGP autonomous system number where N could be 2 or 4
 
-
|-
 
-
| DST_AS
 
-
| 17
 
-
| N (default is 2)
 
-
| Destination BGP autonomous system number where N could be 2 or 4
 
-
|-
 
-
| BGP_IPV4_NEXT_HOP
 
-
| 18
 
-
| 4
 
-
| Next-hop router's IP in the BGP domain
 
-
|-
 
-
| MUL_DST_PKTS
 
-
| 19
 
-
| N (default is 8)
 
-
| IP multicast outgoing packet counter with length N x 8 bits for packets associated with the IP Flow
 
-
|-
 
-
| MUL_DST_BYTES
 
-
| 20
 
-
| N (default is 8)
 
-
| IP multicast outgoing byte counter with length N x 8 bits for bytes associated with the IP Flow
 
-
|-
 
-
| LAST_SWITCHED
 
-
| 21
 
-
| 4
 
-
| System uptime at which the last packet of this flow was switched
 
-
|-
 
-
| FIRST_SWITCHED
 
-
| 22
 
-
| 4
 
-
| System uptime at which the first packet of this flow was switched
 
-
|-
 
-
| OUT_BYTES
 
-
| 23
 
-
| N (default is 8)
 
-
| Outgoing counter with length N x 8 bits for the number of bytes associated with an IP Flow
 
-
|-
 
-
| OUT_PKTS
 
-
| 24
 
-
| N (default is 8)
 
-
| Outgoing counter with length N x 8 bits for the number of packets associated with an IP Flow.
 
-
|-
 
-
| MIN_PKT_LNGTH
 
-
| 25
 
-
| 4
 
-
| Minimum IP packet length on incoming packets of the flow
 
-
|-
 
-
| MAX_PKT_LNGTH
 
-
| 26
 
-
| 4
 
-
| Maximum IP packet length on incoming packets of the flow
 
-
|-
 
-
| IPV6_SRC_ADDR
 
-
| 27
 
-
| 16
 
-
| IPv6 Source Address
 
-
|-
 
-
| IPV6_DST_ADDR
 
-
| 28
 
-
| 16
 
-
| IPv6 Destination Address
 
-
|-
 
-
| IPV6_SRC_MASK
 
-
| 29
 
-
| 1
 
-
| Length of the IPv6 source mask in contiguous bits
 
-
|-
 
-
| IPV6_DST_MASK
 
-
| 30
 
-
| 1
 
-
| Length of the IPv6 destination mask in contiguous bits
 
-
|-
 
-
| IPV6_FLOW_LABEL
 
-
| 31
 
-
| 4
 
-
| IPv6 flow label as per RFC 2460 definition
 
-
|-
 
-
| ICMP_TYPE_CODE
 
-
| 32
 
-
| 2
 
-
| Internet Control Message Protocol (ICMP) packet type; reported as ((ICMP Type * 256) + ICMP code)
 
-
|-
 
-
| MUL_IGMP_TYPE
 
-
| 33
 
-
| 1
 
-
| Internet Group Management Protocol (IGMP) packet type
 
-
|-
 
-
| SAMPLING_INTERVAL
 
-
| 34
 
-
| 4
 
-
| When using sampled NetFlow, the rate at which packets are sampled e.g. a value of 100 indicates that one of every 100 packets is sampled
 
-
|-
 
-
| SAMPLING_ALGORITHM
 
-
| 35
 
-
| 1
 
-
| The type of algorithm used for sampled NetFlow: 0x01 Deterministic Sampling ,0x02 Random Sampling
 
-
|-
 
-
| FLOW_ACTIVE_TIMEOUT
 
-
| 36
 
-
| 2
 
-
| Timeout value (in seconds) for active flow entries in the NetFlow cache
 
-
|-
 
-
| FLOW_INACTIVE_TIMEOUT
 
-
| 37
 
-
| 2
 
-
| Timeout value (in seconds) for inactive flow entries in the NetFlow cache
 
-
|-
 
-
| ENGINE_TYPE
 
-
| 38
 
-
| 1
 
-
| Type of flow switching engine: RP = 0, VIP/Linecard = 1
 
-
|-
 
-
| ENGINE_ID
 
-
| 39
 
-
| 1
 
-
| ID number of the flow switching engine
 
-
|-
 
-
| TOTAL_BYTES_EXP
 
-
| 40
 
-
| N (default is 8)
 
-
| Counter with length N x 8 bits for bytes for the number of bytes exported by the Observation Domain
 
-
|-
 
-
| TOTAL_PKTS_EXP
 
-
| 41
 
-
| N (default is 8)
 
-
| Counter with length N x 8 bits for bytes for the number of packets exported by the Observation Domain
 
-
|-
 
-
| TOTAL_FLOWS_EXP
 
-
| 42
 
-
| N (default is 8)
 
-
| Counter with length N x 8 bits for bytes for the number of flows exported by the Observation Domain
 
-
|-
 
-
| IPV4_ROUTER_SC
 
-
| 43
 
-
| 4
 
-
| The router shortcut address i.e. address of router bypassed by a switch (specific for Catalyst architecture)
 
-
|-
 
-
| IPV4_SRC_PREFIX
 
-
| 44
 
-
| 4
 
-
| IPv4 source address prefix (specific for Catalyst architecture)
 
-
|-
 
-
| IPV4_DST_PREFIX
 
-
| 45
 
-
| 4
 
-
| IPv4 destination address prefix  (specific for Catalyst architecture)
 
-
|-
 
-
| MPLS_TOP_LABEL_TYPE
 
-
| 46
 
-
| 1
 
-
| MPLS Top Label Type: 0x00 UNKNOWN 0x01 TE-MIDPT 0x02 ATOM 0x03 VPN 0x04 BGP 0x05 LDP
 
-
|-
 
-
| MPLS_TOP_LABEL_IP_ADDR
 
-
| 47
 
-
| 4
 
-
| Forwarding Equivalent Class corresponding to the MPLS Top Label
 
-
|-
 
-
| FLOW_SAMPLER_ID
 
-
| 48
 
-
| 1
 
-
| Identifier shown in "show flow-sampler"
 
-
|-
 
-
| FLOW_SAMPLER_MODE
 
-
| 49
 
-
| 1
 
-
| The type of algorithm used for sampling data: 0x02 random sampling. Use in connection with FLOW_SAMPLER_MODE
 
-
|-
 
-
| FLOW_SAMPLER_RANDOM_INTERVAL
 
-
| 50
 
-
| 4
 
-
| Packet interval at which to sample. Use in connection with FLOW_SAMPLER_MODE
 
-
|-
 
-
| MIN_TTL
 
-
| 52
 
-
| 1
 
-
| Minimum TTL on incoming packets of the flow
 
-
|-
 
-
| MAX_TTL
 
-
| 53
 
-
| 1
 
-
| Maximum TTL on incoming packets of the flow
 
-
|-
 
-
| IPV4_IDENT
 
-
| 54
 
-
| 4
 
-
| The IPv4 identification field
 
-
|-
 
-
| DST_TOS
 
-
| 55
 
-
| 1
 
-
| Type of Service byte setting when exiting outgoing interface
 
-
|-
 
-
| IN_SRC_MAC
 
-
| 56
 
-
| 6
 
-
| Incoming source MAC address
 
-
|-
 
-
| OUT_DST_MAC
 
-
| 57
 
-
| 6
 
-
| Outgoing destination MAC address
 
-
|-
 
-
| SRC_VLAN
 
-
| 58
 
-
| 2
 
-
| Virtual LAN identifier associated with ingress interface
 
-
|-
 
-
| DST_VLAN
 
-
| 59
 
-
| 2
 
-
| Virtual LAN identifier associated with egress interface
 
-
|-
 
-
| IP_PROTOCOL_VERSION
 
-
| 60
 
-
| 1
 
-
| Internet Protocol Version Set to 4 for IPv4, set to 6 for IPv6. If not present in the template, then version 4 is assumed.
 
-
|-
 
-
| DIRECTION
 
-
| 61
 
-
| 1
 
-
| Flow direction: 0 - ingress flow, 1 - egress flow
 
-
|-
 
-
| IPV6_NEXT_HOP
 
-
| 62
 
-
| 16
 
-
| IPv6 address of the next-hop router
 
-
|-
 
-
| BPG_IPV6_NEXT_HOP
 
-
| 63
 
-
| 16
 
-
| Next-hop router in the BGP domain
 
-
|-
 
-
| IPV6_OPTION_HEADERS
 
-
| 64
 
-
| 4
 
-
| Bit-encoded field identifying IPv6 option headers found in the flow
 
-
|-
 
-
| MPLS_LABEL_1
 
-
| 70
 
-
| 3
 
-
| MPLS label at position 1 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_2
 
-
| 71
 
-
| 3
 
-
| MPLS label at position 2 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_3
 
-
| 72
 
-
| 3
 
-
| MPLS label at position 3 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_4
 
-
| 73
 
-
| 3
 
-
| MPLS label at position 4 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_5
 
-
| 74
 
-
| 3
 
-
| MPLS label at position 5 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_6
 
-
| 75
 
-
| 3
 
-
| MPLS label at position 6 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_7
 
-
| 76
 
-
| 3
 
-
| MPLS label at position 7 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_8
 
-
| 77
 
-
| 3
 
-
| MPLS label at position 8 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_9
 
-
| 78
 
-
| 3
 
-
| MPLS label at position 9 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| MPLS_LABEL_10
 
-
| 79
 
-
| 3
 
-
| MPLS label at position 10 in the stack. This comprises 20 bits of MPLS label, 3 EXP (experimental) bits and 1 S (end-of-stack) bit.
 
-
|-
 
-
| IN_DST_MAC
 
-
| 80
 
-
| 6
 
-
| Incoming destination MAC address
 
-
|-
 
-
| OUT_SRC_MAC
 
-
| 81
 
-
| 6
 
-
| Outgoing source MAC address
 
-
|-
 
-
| IF_NAME
 
-
| 82
 
-
| N (default specified in template)
 
-
| Shortened interface name e.g. "FE1/0"
 
-
|-
 
-
| IF_DESC
 
-
| 83
 
-
| N (default specified in template)
 
-
| Full interface name e.g. "'FastEthernet 1/0"
 
-
|-
 
-
| SAMPLER_NAME
 
-
| 84
 
-
| N (default specified in template)
 
-
| Name of the flow sampler
 
-
|-
 
-
| IN_PERMANENT_BYTES
 
-
| 85
 
-
| N (default is 8)
 
-
| Running byte counter for a permanent flow
 
-
|-
 
-
| IN_PERMANENT_PKTS
 
-
| 86
 
-
| N (default is 8)
 
-
| Running packet counter for a permanent flow
 
-
|-
 
-
| FRAGMENT_OFFSET
 
-
| 88
 
-
| 2
 
-
| The fragment-offset value from fragmented IP packets
 
-
|-
 
-
| FORWARDING STATUS
 
-
| 89
 
-
| 1
 
-
| Forwarding status. See note below.
 
-
|-
 
-
| MPLS_PAL_RD
 
-
| 90
 
-
| 8
 
-
| MPLS PAL Route Distinguisher.
 
-
|-
 
-
| MPLS_PREFIX_LEN
 
-
| 91
 
-
| 1
 
-
| Number of consecutive bits in the MPLS prefix length.
 
-
|-
 
-
| SRC_TRAFFIC_INDEX
 
-
| 92
 
-
| ?
 
-
| ?
 
-
|-
 
-
| DST_TRAFFIC_INDEX
 
-
| 93
 
-
| ?
 
-
| ?
 
-
|-
 
-
| APP_DESCRIPTION
 
-
| 94
 
-
| N
 
-
| Application description.
 
-
|-
 
-
| CLASSIFICATION TAG
 
-
| 95
 
-
| 1 + n
 
-
| 8 bits of engine ID, followed by n bits of classification.
 
-
|-
 
-
| CLASSIFICATION NAME
 
-
| 96
 
-
| N
 
-
| Name associated with a classification.
 
-
|-
 
-
| postipDiffServCodePoint
 
-
| 98
 
-
| 1
 
-
| The value of a Differentiated Services Code Point (DSCP) encoded in the Differentiated Services Field, after modification.
 
-
|-
 
-
| replication factor
 
-
| 99
 
-
| 4
 
-
| Multicast replication factor.
 
-
|-
 
-
| layer2packetSectionOffset
 
-
| 102
 
-
| ?
 
-
| Layer 2 packet section offset. Potentially a generic offset.
 
-
|-
 
-
| layer2packetSectionSize
 
-
| 103
 
-
| ?
 
-
| Layer 2 packet section size. Potentially a generic size.
 
-
|-
 
-
| layer2packetSectionData
 
-
| 104
 
-
| ?
 
-
| Layer 2 packet section data.
 
-
|-
 
-
| subApplicationName
 
-
| 109
 
-
| ?
 
-
| Name of a sub app. See #109.
 
-
|-
 
-
| subApplicationDescr
 
-
| 110
 
-
| ?
 
-
| Descr of a sub app. See #109.
 
-
|-
 
-
| rangeEnd
 
-
| 111
 
-
| 8
 
-
| Range end for describing the parameters needed to interpret a field.
 
-
|-
 
-
|
 
-
|
 
-
|
 
-
|
 
-
|-
 
-
| Reserved
 
-
| 112 - 127
 
-
| ?
 
-
| Reserved for future use by Cisco
 
|}
|}
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<br>
+
<br>  
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<br>
+
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= Fields > 32768 (Enterprise Specific Fields) =
+
*[[AVC:Home|AVC Home Page]]
-
<br>
+
<br>  
-
The values of the fields listed below are set for compatibility with IPFIX Enterprise Specific numbering. The IPFIX enterprise specific field encoding includes 1 Enterprise Specific bit + 15 bits of identifier, for simplicity we can consider this as a single 16 bit ID starting with 0x8001 or 32769.
+
== NetFlow Child Pages  ==
-
<br>
+
*[[NetFlow:IDs|NetFlow Element IDs]]
-
<br>
+
 +
<br><br>
-
== General ==
+
[[Category:AVC]] [[Category:NetFlow]]
-
 
+
-
 
+
-
<br>
+
-
<br>
+
-
 
+
-
== Performance Routing ==
+
-
 
+
-
<br>
+
-
 
+
-
Refer to: [[NetFlow:PfR | Performance Routing NetFlow]] for information regarding the use of the fields.
+
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+
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<br>
+
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+
-
{| width="800" border="1" cellpadding="1" cellspacing="1"
+
-
|-
+
-
! scope="col" bgcolor="#FFE0C8" | Field Type
+
-
! scope="col" bgcolor="#FFE0C8" | Value
+
-
! scope="col" bgcolor="#FFE0C8" | Len (bytes)
+
-
! scope="col" bgcolor="#FFE0C8" | Description
+
-
|-
+
-
| IPV4_BR_ADDR
+
-
| 39000
+
-
| 4
+
-
| IPv4 border router (BR) address
+
-
|-
+
-
| PFR_STATUS
+
-
| 39001
+
-
| 2
+
-
| state code (state_type: 1 Byte, state_subtype: 1 Byte)
+
-
|-
+
-
| REASON_ID
+
-
| 39002
+
-
| 4
+
-
| reason ID
+
-
|-
+
-
| Threshold
+
-
| 39003
+
-
| 4
+
-
| policy threshold to which PfR thinks In-Policy
+
-
|-
+
-
| Priority
+
-
| 39004
+
-
| 2
+
-
| policy priority settings.
+
-
|-
+
-
| LongTermRTT
+
-
| 39006
+
-
| 4
+
-
| average round-trip-time for long-term period
+
-
|-
+
-
| BelowMOSPercentage
+
-
| 39007
+
-
| 4
+
-
| average percentage value below the MOS threshold
+
-
|-
+
-
| RSVPBandWidthPool
+
-
| 39008
+
-
| 8
+
-
| bandwidth pool reserved by RSVP
+
-
|-
+
-
| RollupCounter
+
-
| 39009
+
-
| 2
+
-
| rollup counter which is expired when it becomes zero.
+
-
|-
+
-
| BandWidthPercentage
+
-
| 39010
+
-
| 2
+
-
| bandwidth percentage against the maximum bandwidth
+
-
|-
+
-
| BandWidthFee
+
-
| 39011
+
-
| 4
+
-
| fee for a specific bandwidth
+
-
|-
+
-
| L4_SRC_PORT_MIN
+
-
| 39012
+
-
| 2
+
-
| TCP/UDP source minimum port number
+
-
|-
+
-
| L4_SRC_PORT_MAX
+
-
| 39013
+
-
| 2
+
-
| TCP/UDP source maximum port number (we will request a standard number to IANA later)
+
-
|-
+
-
| L4_DST_PORT_MIN
+
-
| 39014
+
-
| 2
+
-
| TCP/UDP destination minimum port number (we will request a standard number to IANA later)
+
-
|-
+
-
| L4_DST_PORT_MAX
+
-
| 39015
+
-
| 2
+
-
| TCP/UDP destination maximum port number (we will request a standard number to IANA later)
+
-
|-
+
-
| CAPACITY
+
-
| 39016
+
-
| 8
+
-
| Link capacity – egress link capacity (kbps)
+
-
|-
+
-
| INGRESS_BW
+
-
| 39017
+
-
| 8
+
-
| Current ingress bandwidth (kbps)
+
-
|-
+
-
| MAX_INGRESS_BW
+
-
| 39018
+
-
| 8
+
-
| Max ingress bandwidth (kbps)
+
-
|-
+
-
| EGRESS_BW
+
-
| 39019
+
-
| 8
+
-
| Current egress bandwidth (kbps)
+
-
|-
+
-
| MAX_EGRESS_BW
+
-
| 39020
+
-
| 8
+
-
| Max egress bandwidth (kbps)
+
-
|-
+
-
| INGRESS_ROLLUP_BW
+
-
| 39021
+
-
| 8
+
-
| Ingress rollup bandwidth (kbps)
+
-
|-
+
-
| EGRESS_ROLLUP_BW
+
-
| 39022
+
-
| 8
+
-
| Egress rollup bandwidth (kbps)
+
-
|-
+
-
| KTH_ROLLUP_BW
+
-
| 39023
+
-
| 8
+
-
|-
+
-
| LINK_GROUP_NAME
+
-
| 39024
+
-
| 48
+
-
| Link group name assigned to an external interface in the MC configuration
+
-
|-
+
-
| BGP_COMMUNITY
+
-
| 39025
+
-
| 4
+
-
| Used for ingress load-balancing using BGP
+
-
|-
+
-
| BGP_PREPEND
+
-
| 39026
+
-
| 1
+
-
| Used for ingress load-balancing using BGP
+
-
|-
+
-
| ENTRANCE_DOWNGRADE
+
-
| 39027
+
-
|
+
-
|
+
-
|-
+
-
| DISCARD_ROLLUP_COUNT
+
-
| 39028
+
-
| 2
+
-
|
+
-
|-
+
-
|}
+
-
 
+
-
<br>
+
-
<br>
+

Revision as of 23:26, 28 February 2013



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Cisco IOS NetFlow efficiently provides a key set of services for IP applications, including network traffic accounting, usage-based network billing, network planning, security, Denial of Service monitoring capabilities, and network monitoring. NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Cisco invented NetFlow and is the leader in IP traffic flow technology.
NetFlow version 9, the latest Cisco IOS NetFlow innovation, is a flexible and extensible method to record network performance data. It is the basis of a new IETF standard. Cisco is currently working with a number of partners to provide customers with comprehensive solutions for NetFlow-based, planning, monitoring and billing.



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