display ipv6 netstream cache [ verbose ] [ type { ip | ipl2 | l2 | mpls [ label-position1 label-value1 [ label-position2 label-value2 [ label-position3 label-value3 ] ] ] } ] [ destination destination-ip | destination-port destination-port | interface interface-type interface-number | protocol protocol | source source-ip | source-port source-port ] * [ arrived-time start-date start-time end-date end-time ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

verbose: Displays detailed information about IPv6 NetStream entries. If you do not specify this keyword, this command displays brief information about IPv6 NetStream entries.

type: Specifies the IPv6 NetStream entry type. If you do not specify this keyword, this command displays information about all types of IPv6 NetStream entries.

ip: Specifies IP NetStream entries.

ipl2: Specifies IPv6 NetStream entries for Layer 2 flows with IPv6 protocol information.

l2: Specifies Layer 2 NetStream entries.

mpls: Specifies MPLS NetStream entries.

label-position1 label-value1: Specifies a label by its position and value. The value range for the label-position1 argument is 1 to 10, representing labels from the innermost to the outermost. The value range for the label-value1 argument is 0 to 1048575.

label-position2 label-value2: Specifies a label by its position and value. The value range for the label-position2 argument is 1 to 10 except for specified labels, representing labels from the innermost to the outermost. The value range for the label-value2 argument is 0 to 1048575.

label-position3 label-value3: Specifies a label by its position and value. The value range for the label-position3 argument is 1 to 10 except for specified labels, representing labels from the innermost to the outermost. The value range for the label-value3 argument is 0 to 1048575.

destination destination-ipv6: Specifies a destination IPv6 address. If you specify this option, this command does not display Layer 2 NetStream entries.

destination-port destination-port: Specifies a destination port number in the range of 0 to 65535. If you specify this option, this command does not display Layer 2 NetStream entries.

interface interface-type interface-number: Specifies an interface by its type and number.

protocol protocol: Specifies a protocol by its number in the range of 0 to 255 or by its name such as GRE, OSPF, TCP, or UDP. If you specify this option, this command does not display Layer 2 NetStream entries.

source source-ipv6: Specifies a source IPv6 address. If you specify this option, this command does not display Layer 2 NetStream entries.

source-port source-port: Specifies a source port number in the range of 0 to 65535. If you specify this option, this command does not display Layer 2 NetStream entries.

arrived-time: Specifies an arrived time range to display IPv6 NetStream entries. If you do not specify this keyword, the arrived time is not used as a criterion for filtering the IPv6 NetStream entries to be displayed.

start-date: Specifies the start date in the format of MM/DD/YYYY or YYYY/MM/DD, where MM is in the range of 1 to 12 and YYYY is in the range of 2000 to 2035. The value range for DD varies by the value of MM.

start-time: Specifies the start time in the format of HH:MM:SS, where HH is in the range of 0 to 23, MM and SS are in the range of 0 to 59. The SS element can be omitted if its value is 00. Both the SS and MM elements can be omitted if their values are 0. For example, the start time of 0 indicates 00:00:00.

end-date: Specifies the end date in the format of MM/DD/YYYY or YYYY/MM/DD, where MM is in the range of 1 to 12 and YYYY is in the range of 2000 to 2035. The value range for DD varies by the value of MM.

end-time: Specifies the end time in the format of HH:MM:SS, where HH is in the range of 0 to 23, MM and SS are in the range of 0 to 59. The SS element can be omitted if its value is 00. Both the SS and MM elements can be omitted if their values are 0. For example, the end time of 0 indicates 00:00:00.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about IPv6 NetStream entries on all cards.

Examples

# Display detailed information about IPv6 NetStream entries.

<Sysname> display ipv6 netstream cache verbose

IPv6 NetStream cache information:

Active flow timeout : 60 min

Inactive flow timeout : 10 sec

Max number of entries : 1000

IPv6 active flow entries : 1

MPLS active flow entries : 0

IPL2 active flow entries : 0

IPv6 flow entries counted : 10

MPLS flow entries counted : 20

IPL2 flow entries counted : 20

Last statistics resetting time : 01/01/2000 at 00:01:02

IPv6 packet size distribution (1103746 packets in total):

1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480

.249 .694 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000

512 544 576 1024 1536 2048 2560 3072 3584 4096 4608 >4608

.000 .000 .027 .000 .027 .000 .000 .000 .000 .000 .000 .000

Protocol Total Packets Flows Packets Active(sec) Idle(sec)

Flows /sec /sec /flow /flow /flow

--------------------------------------------------------------------------

TCP-Telnet 2656855 372 4 86 49 27

TCP-FTP 5900082 86 9 9 11 33

TCP-FTPD 3200453 1006 5 193 45 33

TCP-WWW 546778274 11170 887 12 8 32

TCP-other 49148540 3752 79 47 30 32

UDP-DNS 117240379 570 190 3 7 34

UDP-other 45502422 2272 73 30 8 37

ICMP 14837957 125 24 5 12 34

IP-other 77406 5 0 47 52 27

Type DstIP(Port) SrcIP(Port) Pro TC FlowLbl If(Direct) Pkts

DstMAC(VLAN) SrcMAC(VLAN)

TopLblType(IP/MASK) Lbl-Exp-S-List

--------------------------------------------------------------------------

IP 2001::1(1024) 2002::1(21) 6 0 0x6000 XGE3/0/1(I) 42996

TCPFlag: 27 TTL: 64

DstMask: 24 SrcMask: 24 NextHop: 0.0.0.0

DstAS: 0 SrcAS: 0 BGPNextHop: 0.0.0.0

InVRF: mvpn

Bgp-community1: 0

Bgp-community2: 0

Bgp-community3: 0

Bgp-community4: 0

SamplerMode:Random SamplerInt: 256

Active: 120.600 Bytes/Pkt: 152

First packet arrived: 10/28/2013, 14:10:03

Last packet arrived: 10/28/2013, 14:21:03

SRv6 policy NID: 2150629379

Table 1 Command output

Field	Description
Active flow timeout	Aging timer for active flows, in minutes.
Inactive flow timeout	Aging timer for inactive flows, in seconds.
Max number of entries	Maximum number of IPv6 flows allowed in the cache.
IPv6 active flow entries	Number of active IPv6 flows in the cache.
MPLS active flow entries	Number of active IPv6 MPLS flows in the cache.
IPL2 active flow entries	Number of active Layer 2 flows with IPv6 protocol information.
IPv6 flow entries counted	Number of IPv6 flows that have been counted.
MPLS flow entries counted	Number of MPLS flows that have been counted.
IPL2 flow entries counted	Number of Layer 2 flows (with IPv6 protocol information) that have been counted.
Last statistics resetting time	Last time the reset ipv6 netstream statistics command was executed. This field displays Never if you have never executed this command.
IPv6 packet size distribution (1103746packets in total):	Distribution of IPv6 packets by packet size, and the bracketed number is the total number of IPv6 packets. The value is displayed in the proportion of the number of IPv6 packets of the specified sizes to the total number of IPv6 packets. The value is displayed with three decimal places.
1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480 512 544 576 1024 1536 2048 2560 3072 3584 4096 4608 >4608	Range of IPv6 packet length (excluding data link layer header). · For the values in the range of 1 to 576 bytes, the range increases in the step of 32 bytes. For example, 1-32 shows the number of packets with the size of 1 to 32 bytes. 64 shows the number of packets with the size of 33 to 64 bytes. · For the values greater than 1024 bytes, the range increases in the step of 512 bytes. For example, 1536 shows the number of packets with the size of 1025 to 1536 bytes. · Packets with the size of 577 to 1024 bytes are recorded in the 1024 entry.
Protocol Total Flows Packets/Sec Flow/Sec Packets/flow Active(sec)/ flow Idle(sec)/flow	Statistics of packets by protocol type: · Protocol type. · Total number of flows. · Number of packets per second. · Number of flows per second. · Number of packets per flow. · Active time (in seconds) of each flow. · Inactive time (in seconds) of each flow.
Type DstIP(Port) SrcIP(Port) Pro TC FlowLbl If(Direct) Pkts	Statistics of the active flows in the current cache: · Flow type. Flows are classified into the following types: ¡ IP flows. ¡ Layer 2 flows with IPv6 protocol information (IPL2). ¡ MPLS flows without IP options (MPLS). ¡ MPLS flows with IP options (IP&MPLS). · Destination IPv6 address (destination port). · Source IPv6 address (source port). · Protocol number. · Traffic classification. · Flow label. · Interface name (direction). · Number of packets. ICMPv6 packets do not contain port number fields, so the type and code fields are captured. The value for the destination port represents these two fields: · The highest 8 bits represent the type field. · The lowest 8 bits represent the code field. The value for the source port is set to 0 and does not indicate any statistics. NetStream sampling based on an SRv6 TE policy collects the destination IP address (destination port), source IP address (source port), protocol number, traffic classification, and flow label in the inner header of packets.
DstMAC(VLAN) SrcMAC(VLAN)	Layer 2 information for the active flows in the current cache: · Destination MAC address, followed by the destination VLAN ID in parenthesis. · Source MAC address, followed by the source VLAN ID in parenthesis.
TopLblType(IP/MASK) Lbl-Exp-S-List	Information about the active MPLS flows in the current cache: · TopLblType—Type of the labels at the top of the label stack. · IP/Mask—IP address and mask associated with the label. · Lbl—20-bit label value. · EXP—3-bit field for implementing QoS. · S—1-bit bottom of stack flag. The S field is set to 1 if the label is the bottom label and set to 0 if not. · List—Label list. Up to three labels can be listed in one label list. Use the mpls-position argument to specify the label position.
TcpFlag: TTL: DstMask: SrcMask: DstAS: SrcAS: NextHop: BGPNextHop: OutVRF: InVRF: Bgp-community1: Bgp-community2: Bgp-community3: Bgp-community4: SamplerMode: SamplerInt: Active: Bytes/Pkt: First packet arrived: Last packet arrived: SRv6 policy NID:	Other information about the active flows in the cache: · TCPFlag—TCP flag. · TTL. · DstMask—Destination mask. · SrcMask—Source mask. · DstAS—Destination AS. · SrcAS—Source AS. · NextHop—Routing next hop. · BGPNextHop—BGP next hop. · OutVRF—VPN to which the outbound packets belong. · InVRF—VPN to which the inbound packets belong. · Bgp-community—BGP community attribute value. · SamplerMode—Sampling mode. IPv6 NetStream supports the following sampling modes: ¡ N/A—No sampling. ¡ Fixed—Fixed sampling. ¡ Random—Random sampling. · SamplerInt—Sampling interval. · Active—Flow's active time. · Bytes/Pkt—Number of bytes per packet. · First packet arrived—Arrival time of the first packet of the flow. · Last packet arrived—Arrival time of the last packet of the flow. · SRv6 policy NID—NHLFE entry index for the SRv6 TE policy. NetStream sampling based on an SRv6 TE policy displays the following information in L3VPN service packets: · TCPFlag—TCP tag in the inner header. · TTL—TTL in the outer header. · DstMask—Destination mask in the outer header. · SrcMask—Source mask in the outer header. · NextHop—Routing next hop in the outer header. · DstAS—Destination AS in the outer header. · SrcAS—Source AS in the outer header. · BGPNextHop—BGP next hop in the outer header. · Bytes/Pkt—Number of bytes per original packet. NetStream based on an SRv6 TE policy displays only the TTL for L2VPN service packets. Interface-specific NetStream displays the following information for packets that match an SRv6 TE policy: · TCPFlag—TCP tag in the inner header. · TTL—TTL in the outer header. · DstMask—Destination mask in the outer header. · SrcMask—Source mask in the outer header. · NextHop—Routing next hop in the outer header. · DstAS—Destination AS in the outer header. · SrcAS—Source AS in the outer header. · BGPNextHop—BGP next hop, fixed at ::. · Bytes/Pkt—Number of bytes per original packet.

‌

display ipv6 netstream cache archive

Use display ipv6 netstream cache archive to display the locally archived NetStream entries.

Syntax

display ipv6 netstream cache archive [ verbose ] [ type { ip | ipl2 | l2 | mpls [ label-position1 label-value1 [ label-position2 label-value2 [ label-position3 label-value3 ] ] ] } ] [ destination destination-ip | destination-port destination-port | interface interface-type interface-number | protocol protocol | source source-ip | source-port source-port ] * [ arrived-time start-date start-time end-date end-time ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

verbose: Displays detailed IPv6 NetStream entry information.

type: Specifies the IPv6 NetStream entry type. If you do not specify this keyword, this commands displays information about all types of NetStream entries.

ip: Specifies Layer 3 NetStream entries.

ipl2: Specifies Layer 2 and Layer 3 NetStream entries.

l2: Specifies Layer 2 NetStream entries.

mpls: Specifies MPLS NetStream entries.

label-position1 label-value1: Specifies a label by its position and value. The value range for the label-position1 argument is 1 to 10, representing labels from the outermost to the innermost. The value range for the label-value1 argument is 0 to 1048575.

label-position2 label-value2: Specifies a label by its position and value. The value range for the label-position2 argument is 1 to 10, representing labels from the outermost to the innermost. The value range for the label-value2 argument is 0 to 1048575.

label-position3 label-value3: Specifies a label by its position and value. The value range for the label-position3 argument is 1 to 10, representing labels from the outermost to the innermost. The value range for the label-value3 argument is 0 to 1048575.

destination destination-ipv6: Specifies a destination IPv6 address. If you specify this option, this command does not display Layer 2 NetStream entries.

interface interface-type interface-number: Specifies an interface by its type and number.

source source- ipv6: Specifies a source IPv6 address. If you specify this option, this command does not display Layer 2 NetStream entries.

destination-port destination-port: Specifies a destination port number in the range of 0 to 65535. If you specify this option, this command does not display Layer 2 NetStream entries.

source-port source-port: Specifies a source port number in the range of 0 to 65535. If you specify this option, this command does not display Layer 2 NetStream entries.

arrived-time: Specifies an arrived time range to display IPv6 NetStream entries. If you do not specify this keyword, the arrived time is not used as a criterion for filtering the NetStream entries to be displayed.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about locally archived NetStream entries on all cards.

Examples

# Display information about the IPv6 NetStream entries archived between 14:10:03 and 14:23:03 on July 28, 2017.

<Sysname> display ipv6 netstream cache archive arrived-time 7/28/2017 14:10:03 7/28/2017 14:23:03

Type DstIP(Port) SrcIP(Port) Pro TC FlowLbl APPID If(Direct) Pkts

DstMAC(VLAN) SrcMAC(VLAN)

TopLblType(IP/Mask) Lbl-Exp-S-List

--------------------------------------------------------------------------

IP 2001::1(1024) 2002::1(21) 6 0 0x6000 0x0 XGE3/0/1(I) 42996

First packet arrived: 7/28/2017, 14:20:03

Last packet arrived: 7/28/2017, 14:21:03

Related commands

ipv6 netstream cache archive enable

display ipv6 netstream export

Use display ipv6 netstream export to display information about the IPv6 NetStream data export.

Syntax

display ipv6 netstream export [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays IPv6 NetStream data export information on all cards.

Usage guidelines

IP NetStream export information varies by aggregation mode. This command displays IPv6 NetStream export information for all the configured aggregation modes.

Examples

# Display information about the IPv6 NetStream data export.

<Sysname> display ipv6 netstream export

as aggregation export information:

Flow source interface : Ten-GigabitEthernet3/0/1

Flow destination VPN instance : VPN1

Flow destination DSCP : 0

Flow destination IPv6 address (UDP) : 40::1 (30000)

Version 9 exported flow number : 16

Version 9 exported UDP datagram number (failed) : 2 (0)

Version 10 exported flow number : 0

Version 10 exported UDP datagram number (failed) : 0 (0)

IPv6 export information:

Flow source interface : Ten-GigabitEthernet3/0/1

Flow destination VPN instance : VPN1

Flow destination DSCP : 0

Flow destination IPv6 address (UDP) : 40::1 (30000)

Version 9 exported flow number : 16

Version 9 exported UDP datagram number (failed) : 16 (0)

Version 10 exported flow number : 0

Version 10 exported UDP datagram number (failed) : 0 (0)

Table 2 Command output

Field	Description
as aggregation export information	Statistics of IPv6 NetStream AS aggregation in the version 9 format.
IPv6 export information	Information about the IPv6 NetStream data export.
Flow source interface	Source interface from which the IPv6 NetStream data is exported.
Flow destination VPN instance	VPN to which the destination address of the IPv6 NetStream data export belongs.
Flow destination DSCP	DSCP value in export traffic statistics.
Flow destination IP address (UDP)	Destination IPv4 address and UDP port number of the IPv6 NetStream data export.
Flow destination IPv6 address (UDP)	Destination IPv6 address and UDP port number of the IPv6 NetStream data export.
Version 9 exported flow number	Number of flows that are exported in the version 9 format.
Version 9 exported UDP datagram number (failed)	Number of UDP packets that are sent in the version 9 format. The value in the parentheses displays the number of UDP packets that failed to be sent.
Version 10 exported flow number	Number of flows that are exported in the version 10 format.
Version 10 exported UDP datagram number (failed)	Number of UDP packets that are sent in the version 10 format. The value in the parentheses displays the number of UDP packets that failed to be sent.

Related commands

ipv6 netstream export host (system view)

ipv6 netstream export host (IPv6 NetStream aggregation mode view)

display ipv6 netstream template

Use display ipv6 netstream template to display IPv6 NetStream template information.

Syntax

display ipv6 netstream template [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify a card, the command displays IPv6 NetStream template information on the active MPU.

Usage guidelines

IPv6 NetStream templates vary by aggregation mode. This command displays IPv6 NetStream template information for all the configured aggregation modes.

Examples

# Display NetStream template information. The template is in the version 10 format and is not compliant with the RFC 7011 template format.

<Sysname> display ipv6 netstream template

Flow template refresh frequency : 20

Flow template refresh interval : 30 min

Active flow templates : 2

Created flow templates : 4

L3 outbound template:

Template ID : 3282

Packets : 0

Last template export time : Never

Field count : 29

Field type Field length (bytes)

------------------------------------------------------------------------------

Out packets 8

Out bytes 8

First forwarded 4

Last forwarded 4

Input interface index 4

Output interface index 4

Source IPv6 address 16

Destination IPv6 address 16

Next hop IPv6 address 16

PAD 1

IPv6 flow label 3

Source AS 4

Destination AS 4

L4 source port 2

L4 destination port 2

IP protocol version 1

TCP flags 1

Protocol 1

Source ToS 1

Source address mask 1

Destination address mask 1

Direction 1

Forwarding status 1

Out VPN ID 2

Sampling algorithm 1

PAD 1

Sampling interval 4

App ID 4

VPN instance name 65535

Bgp-community1 4

Bgp-community2 4

Bgp-community3 4

Bgp-community4 4

Serial number 65535

L3 inbound template:

Template ID : 3281

Packets : 0

Last template export time : Never

Field count : 29

Field type Field length (bytes)

------------------------------------------------------------------------------

In packets 8

In bytes 8

First forwarded 4

Last forwarded 4

Input interface index 4

Output interface index 4

Source IPv6 address 16

Destination IPv6 address 16

Next hop IPv6 address 16

PAD 1

IPv6 flow label 3

Source AS 4

Destination AS 4

L4 source port 2

L4 destination port 2

IP protocol version 1

TCP flags 1

Protocol 1

Source ToS 1

Source address mask 1

Destination address mask 1

Direction 1

Forwarding status 1

In VPN ID 2

Sampling algorithm 1

PAD 1

Sampling interval 4

App ID 4

VPN instance name 65535

Bgp-community1 4

Bgp-community2 4

Bgp-community3 4

Bgp-community4 4

Serial number 65535

Table 3 Command output

Field	Description
Flow template refresh frequency	Refresh frequency at which the templates are sent, in packets.
Flow template refresh interval	Refresh interval at which the templates are sent, in minutes.
Active flow templates	Number of active IPv6 NetStream templates.
Created flow templates	Number of templates that have been created.
MPLS outbound template	Information of MPLS templates in the outbound direction. This field is displayed only when NetStream statistic collection is enabled for MPLS by using the ip netstream mpls command.
MPLS inbound template	Information of MPLS templates in the inbound direction. This field is displayed only when NetStream statistic collection is enabled for MPLS by using the ip netstream mpls command.
L3 outbound template	Information of the Layer 3 template in the outbound direction.
L3 inbound template	Information of the Layer 3 template in the inbound direction.
Packets	Number of packets sent by using the template.
Last template export time	Time when the template was exported most recently.
Field count	Total number of fields in the template.
Field type	Type of a field in the template.
Field length (bytes)	Length of the field, in bytes.
Out packets	Number of sent packets.
In packets	Number of received packets.
Out bytes	Number of sent bytes.
In bytes	Number of received bytes.
First forwarded	System time when the first packet was forwarded, accurate to milliseconds.
Last forwarded	System time when the last packet was forwarded, accurate to milliseconds.
BGP next hop IPv6 address	BGP next hop IPv6 address. If the traffic is not forwarded based on the BGP routing table, the system cannot identify the BGP next hop IPv6 address, and this field is not displayed.
PAD	Padding string.
TCP flags	TCP flag of the flow.
Protocol	Layer 4 protocol type.
Out VPN ID	Name of the VPN instance to which the egress interface of the packets belong.
In VPN ID	Name of the VPN instance to which the ingress interface of the packets belong.
Sampling interval	Sampling rate.
App ID	Application ID.
Bgp-community	BGP community attribute value. This feature is only supported in version 10. If you do not configure the RFC 7011 IPv6 NetStream template format, this field displays Bgp-community1, Bgp-community2, Bgp-community3, Bgp-community4 and is in a fixed length of 4 bytes. If you configure the format, this field displays Bgp-community and the length is changeable up to a maximum of 65535 bytes.
VPN instance name	VPN instance name. If the packets belong to the public network, this field displays N/A.
SRv6 policy color	Color for the SRv6 TE policy.
SRv6 policy endpoint	IPv6 address of the destination node for the SRv6 TE policy.
SRv6 policy name	Name of the SRv6 TE policy.
Serial number	Device serial number
MPLS label n	MPLS label position. The value range for the argument n is 1 to 10, representing label positions from the stack top to the tenth layer.

‌

enable

Use enable to enable an IPv6 NetStream aggregation mode.

Use undo enable to disable an IPv6 NetStream aggregation mode.

Syntax

enable

undo enable

Default

No IPv6 NetStream aggregation mode is enabled.

Views

IPv6 NetStream aggregation mode view

Predefined user roles

network-admin

Examples

# Enable IPv6 NetStream AS aggregation mode.

<Sysname> system-view

[Sysname] ipv6 netstream aggregation as

[Sysname-ns6-aggregation-as] enable

Related commands

ipv6 netstream aggregation

ipv6 netstream (interface view)

Use ipv6 netstream to enable IPv6 NetStream on an interface.

Use undo ipv6 netstream to disable IPv6 NetStream on an interface.

Syntax

ipv6 netstream { inbound | outbound } [ main ]

undo ipv6 netstream { inbound | outbound }

Default

IPv6 NetStream is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Parameters

inbound: Enables IPv6 NetStream for incoming traffic.

outbound: Enables IPv6 NetStream for outgoing traffic.

main: Enables IPv6 NetStream on the main interface. If you do not specify this keyword, this command enables IPv6 NetStream on the main interface and its subinterfaces.

Usage guidelines

Do not enable IPv6 NetStream on an interface that has been assigned to an MP group or HDLC link bundle.

You can enable both IPv4 and IPv6 NetStream on an interface. If you enable both IPv4 and IPv6 NetStream on an interface, either specify the main keyword or do not specify it for both IPv4 and IPv6 NetStream simultaneously. To change the configuration of main keyword, first disable NetStream. Enable NetStream again after the configuration change.

If you do not specify the main keyword, you cannot enable IPv6 NetStream on both a main interface and its subinterfaces.

The main keyword is available only for Layer 3 Ethernet interfaces and ATM interfaces on the device.

Examples

# Enable IPv6 NetStream for incoming traffic on Ten-GigabitEthernet 3/0/1.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 3/0/1

[Sysname-Ten-GigabitEthernet3/0/1] ipv6 netstream inbound

ipv6 netstream (system view)

Use ipv6 netstream to enable IPv6 NetStream.

Use undo ipv6 netstream to disable IPv6 NetStream.

Syntax

ipv6 netstream

undo ipv6 netstream

Default

IPv6 NetStream is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

Global IPv6 NetStream configuration takes effect only on NetStream flow mirroring. This command does not take effect on interface-specific NetStream and NetStream based on an SRv6 TE policy.

Examples

# Enable IPv6 NetStream.

<Sysname> system-view

[Sysname] ipv6 netstream

ipv6 netstream aggregation

Use ipv6 netstream aggregation to specify an IPv6 NetStream aggregation mode and enter its view.

Use undo ipv6 netstream aggregation to remove the configuration for an IPv6 NetStream aggregation mode.

Syntax

ipv6 netstream aggregation { as | bgp-nexthop | destination-prefix | prefix | protocol-port | source-prefix }

undo ipv6 netstream aggregation { as | bgp-nexthop | destination-prefix | prefix | protocol-port | source-prefix }

Default

No IPv6 NetStream aggregation mode is specified.

Views

System view

Predefined user roles

network-admin

Parameters

as: Specifies the AS aggregation mode. It aggregates flows by source AS number, destination AS number, input interface index, and output interface index.

bgp-nexthop: Specifies the BGP nexthop aggregation mode. It aggregates flows by BGP next hop IPv6 address and output interface index.

destination-prefix: Specifies the destination-prefix aggregation mode. It aggregates flows by destination AS number, destination address mask length, destination prefix, and output interface index.

prefix: Specifies the source and destination prefix aggregation mode. It aggregates flows by the following criteria:

· Source AS number.

· Destination AS number.

· Source address mask length.

· Destination address mask length.

· Source prefix.

· Destination prefix.

· Input interface index.

· Output interface index.

protocol-port: Specifies the protocol-port aggregation mode. It aggregates flows by protocol number, source port, and destination port.

source-prefix: Specifies the source-prefix aggregation mode. It aggregates flows by source AS number, source address mask length, source prefix, and input interface index.

Usage guidelines

In IPv6 NetStream aggregation mode view, you can perform the following tasks:

· Enable or disable the specified IPv6 NetStream aggregation mode.

· Configure source interface, destination IPv6 address, and destination port for the IPv6 NetStream data export.

A flow matching multiple aggregation modes is counted as multiple aggregate flows.

Examples

# Set the IPv6 NetStream aggregation mode to AS, and enter IPv6 NetStream AS aggregation mode view.

<Sysname> system-view

[Sysname] ipv6 netstream aggregation as

[Sysname-ns6-aggregation-as]

Related commands

enable

ipv6 netstream export host

ipv6 netstream export source

ipv6 netstream cache archive enable

Use ipv6 netstream cache archive enable to enable archiving of cached IPv6 NetStream entries.

Use undo ipv6 netstream cache archive enable to disable archiving of cached IPv6 NetStream entries.

Syntax

ipv6 netstream cache archive enable

undo ipv6 netstream cache archive enable

Default

Archiving of cached IPv6 NetStream entries is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This command enables local archiving of cached IPv6 NetStream entries when they are exported to NetStream servers.

This feature is applicable when a small number of IPv6 NetStream entries exist and no log server exists. If the device generates a large number of IPv6 NetStream entries, do not enable this feature. Otherwise, the device performance will be affected.

Examples

# Enable archiving of cached IPv6 NetStream entries.

<Sysname> system-view

[Sysname] ipv6 netstream cache archive enable

Related commands

display ipv6 netstream cache archive

ipv6 netstream export host (IPv6 NetStream aggregation mode view)

Use ipv6 netstream export host to specify a destination host for IPv6 NetStream aggregation data export in an IPv6 NetStream aggregation mode view.

Use undo ipv6 netstream export host to remove the specified destination host or all destination hosts that are configured in an IPv6 NetStream aggregation mode view.

Syntax

ipv6 netstream export host { ipv4-address | ipv6-address } udp-port [ vpn-instance vpn-instance-name ] [ dscp dscp-value ]

undo ipv6 netstream export host [ { ipv4-address | ipv6-address } [ vpn-instance vpn-instance-name ] ]

Default

No destination host is specified in an IPv6 NetStream aggregation mode view.

Views

IPv6 NetStream aggregation mode view

Predefined user roles

network-admin

Parameters

ipv4-address: Specifies the destination IPv4 address.

ipv6-address: Specifies the destination IPv6 address.

udp-port: Specifies the destination UDP port number in the range of 0 to 65535.

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance to which the destination host belongs. The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters. If the destination host is on the public network, do not specify this option.

dscp dscp-value: Specifies the DSCP value in export traffic statistics, in the range of 0 to 63. If you do not specify this option, the DSCP value in export traffic statistic is 0.

Usage guidelines

If an aggregation mode is not enabled, the display ipv6 netstream export command cannot display the destination host configuration for the mode.

If no destination host is specified in an IPv6 NetStream aggregation mode view, the destination host in system view applies. If destination hosts are specified in an IPv6 NetStream aggregation mode view and system view, the destination hosts in the aggregation mode view take effect.

You can specify the same destination IP address and UDP port in different IPv6 NetStream aggregation mode views. Each IPv6 NetStream aggregation mode view supports a maximum of four destination hosts. The device supports exporting IPv6 NetStream data to multiple destination hosts for backup. Each destination host is identified by the combination of IP address, UDP port number, and network identifier (VPN instance or public network).

· Destination hosts on different VPN instances can use the same IP address and UDP port number.

· Within the same VPN instance or on the public network, each destination host must use a unique IP address. If you specify a destination host with the same IP address but different UDP port numbers, the most recent configuration takes effect.

IPv6 NetStream aggregation data is exported to all destination hosts in the related IPv6 NetStream aggregation mode view.

Examples

# In AS aggregation mode view, specify 40::1 as the IPv6 address of the destination host and UDP port 5000 as the export destination port number, and set the DSCP value in export traffic statistics to 1.

<Sysname> system-view

[Sysname] ipv6 netstream aggregation as

[Sysname-ns-aggregation-as] ipv6 netstream export host 40::1 5000 dscp 1

Related commands

ipv6 netstream aggregation

ipv6 netstream export source

ipv6 netstream export host (system view)

display ipv6 netstream export

ipv6 netstream export host (system view)

Use ipv6 netstream export host to specify a destination host for IPv6 NetStream data export in system view.

Use undo ipv6 netstream export host to remove the specified destination host or all destination hosts that are specified in system view.

Syntax

ipv6 netstream export host { ipv4-address | ipv6-address } udp-port [ vpn-instance vpn-instance-name ] [ dscp dscp-value ] [ slot slot-number ]

undo ipv6 netstream export host [ {ipv4-address | ipv6-address } [ vpn-instance vpn-instance-name ] ] [ slot slot-number ]

Default

No destination host is specified for IPv6 NetStream data export in system view.

Views

System view

Predefined user roles

network-admin

Parameters

ipv4-address: Specifies the destination IPv4 address.

ipv6-address: Specifies the destination IPv6 address.

udp-port: Specifies the destination UDP port number in the range of 0 to 65535.

dscp dscp-value: Specifies the DSCP value in export traffic statistics, in the range of 0 to 63. If you do not specify this option, the DSCP value in export traffic statistic is 0.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command applies to all cards.

Usage guidelines

The system supports general and slot-specific destination hosts, and they can share the same IP address and port number. If both types of destination hosts are specified for one slot, the device prefers the slot-specific destination hosts for exporting NetStream data of that card. If no slot-specific destination host is specified for that slot, the device uses the general destination hosts for exporting IPv6 NetStream data of the card.

You can specify a maximum of four destination hosts in system view. The device supports exporting IPv6 NetStream traditional data to multiple destination hosts for backup. Each destination host is identified by the combination of the IP address, UDP port number, and network identifier (VPN instance or public network).

· Destination hosts on different VPN instances can use the same IP address and UDP port number.

In system view, the device supports a maximum of four destination hosts for each slot.

Examples

# In system view, specify 40::1 as the IPv6 address of the destination host and UDP port 5000 as the export destination port number, and set the DSCP value in export traffic statistics to 1.

<Sysname> system-view

[Sysname] ipv6 netstream export host 40::1 5000 dscp 1

Related commands

ipv6 netstream aggregation

ipv6 netstream export source

ipv6 netstream export host (IPv6 NetStream aggregation mode view)

display ipv6 netstream export

ipv6 netstream export rate

Use ipv6 netstream export rate to limit the IPv6 NetStream data export rate.

Use undo ipv6 netstream export rate to restore the default.

Syntax

ipv6 netstream export rate rate

undo ipv6 netstream export rate

Default

The export rate of IPv6 NetStream data is not limited.

Views

System view

Predefined user roles

network-admin

Parameters

rate: Specifies the export rate in the range of 1 to 1000.

Usage guidelines

This command sets the maximum number of IPv6 NetStream packets that can be exported per second. Packets that cannot be exported due to the export rate limit are buffered for later export. When the buffer is full, the system will temporarily invalidate the rate limit and export packets as fast as possible until the buffer has available free space.

Examples

# Allow a maximum of 10 packets to be exported per second.

<Sysname> system-view

[Sysname] ipv6 netstream export rate 10

ipv6 netstream export source

Use ipv6 netstream export source to specify the source interface for data packets sent to NetStream servers. The IPv6 address of the interface is used as the source IPv6 address of the data packets.

Use undo ipv6 netstream export source to restore the default.

Syntax

ipv6 netstream export source interface interface-type interface-number

undo ipv6 netstream export source

Default

The packets take the IPv6 address of the output interface as the source IPv6 address.

Views

System view

IPv6 NetStream aggregation mode view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies a source interface by its type and number for the IPv6 NetStream data export.

Usage guidelines

You can configure different source interfaces in different IPv6 NetStream aggregation mode views.

If no source interface is configured in IPv6 NetStream aggregation mode view, the source interface in system view applies.

As a best practice, connect the management Ethernet interface to a NetStream server, and configure the interface as the source interface.

Examples

# In system view, specify Ten-GigabitEthernet 3/0/1 as the source interface for IPv6 NetStream traditional data packets.

<Sysname> system-view

[Sysname] ipv6 netstream export source interface ten-gigabitethernet 3/0/1

# In AS aggregation mode view, specify Ten-GigabitEthernet 3/0/2 as the source interface for IPv6 NetStream aggregation data packets.

<Sysname> system-view

[Sysname] ipv6 netstream aggregation as

[Sysname-ns6-aggregation-as] ipv6 netstream export source interface ten-gigabitethernet 3/0/2

Related commands

ipv6 netstream aggregation

ipv6 netstream export template refresh-rate

Use ipv6 netstream export template refresh-rate to set the refresh rate for the IPv6 NetStream version 9 or version 10 template.

Use undo ipv6 netstream export template refresh-rate to restore the default.

Syntax

ipv6 netstream export template refresh-rate { packet packets | time minutes }

undo ipv6 netstream export template refresh-rate { packet | time }

Default

The packet count-based refresh rate is 20 packets, and the time-based refresh interval is 30 minutes.

Views

System view

Predefined user roles

network-admin

Parameters

packet packets: Specifies the number of packets that are sent before the template is sent. The value range is 1 to 600.

time minutes: Specifies the interval at which the template is sent, in the range of 1 to 3600 minutes.

Usage guidelines

Version 9 and version 10 are template-based and support user-defined formats. An IPv6 NetStream device must send the version 9 or version 10 template to NetStream servers regularly, because the servers do not permanently save templates.

The refresh rate can be packet count-based or time-based. If both settings are configured, the template is sent when either of the conditions is met.

Examples

# Configure the device to send the IPv6 NetStream version 9 or version 10 template every 100 packets.

<Sysname> system-view

[Sysname] ipv6 netstream export template refresh-rate packet 100

ipv6 netstream export version

Use ipv6 netstream export version 9 to export IPv6 NetStream data in the version 9 format and configure the AS, BGP next hop, and serial number export attributes.

Use ipv6 netstream export version 10 to export IPv6 NetStream data in the version 10 format and configure the AS, BGP next hop, and serial number export attributes.

Use undo ipv6 netstream export version to restore the default.

Syntax

ipv6 netstream export version { 9 | 10 } { origin-as | peer-as } [ bgp-nexthop ] [ serial-number ]

undo ipv6 netstream export version

Default

The version 9 format is used to export IPv6 NetStream data.

The peer AS numbers are recorded.

The BGP next hop and serial number information is not recorded.

Views

System view

Predefined user roles

network-admin

Parameters

origin-as: Records the original AS numbers for the flow source and destination.

peer-as: Records the peer AS numbers for the flow source and destination.

bgp-nexthop: Records the BGP next hop information.

serial-number: Records the device serial number.

Usage guidelines

Only one version format can take effect on the device. If you execute this command multiple times, the most recent configuration takes effect.

An IPv6 NetStream entry records the source IPv6 address, destination IPv6 address, and two AS numbers for each address. You can choose to configure which AS numbers are to be exported as the source AS and destination AS.

Only the version 9 and version 10 formats support recoding BGP next hop and serial number information.

Examples

# Configure the device to export IPv6 NetStream data in the version 9 format, specify the IPv6 NetStream data to include the source AS and destination AS, and record the BGP next hop and serial number information.

<Sysname> system-view

[Sysname] ipv6 netstream export version 9 origin-as bgp-nexthop serial-number

ipv6 netstream max-entry

Use ipv6 netstream max-entry to set the upper limit for IPv6 NetStream entries or specify the processing method when the upper limit is reached.

Use undo ipv6 netstream max-entry to restore the default.

Syntax

ipv6 netstream max-entry { max-entries | aging | disable-caching }

undo ipv6 netstream max-entry

Default

A maximum of 2048000 IPv6 NetStream entries can be cached. The system will age out the oldest entries when the number of cached entries reaches the upper limit.

Views

System view

Predefined user roles

network-admin

Parameters

max-entries: Specifies the upper limit for IPv6 NetStream entries that the cache can accommodate. The value range for this argument is 1024 to 2048000.

aging: Ages out the oldest entries when the upper limit is reached.

disable-caching: Disables creation of a new entry when the upper limit is reached.

Usage guidelines

The max-entries argument takes effect on each card.

If you execute the ipv6 netstream max-entry max-entries command multiple times, the most recent configuration takes effect.

If you execute the ipv6 netstream max-entry { aging | disable-caching } command multiple times, the most recent configuration takes effect.

Examples

# Set the upper limit to 5000 for IPv6 NetStream entries.

<Sysname> system-view

[Sysname] ipv6 netstream max-entry 5000

# Disable creation of a new entry when the upper limit is reached.

<Sysname> system-view

[Sysname] ipv6 netstream max-entry disable-caching

# Configure the device to age out the oldest entries when the upper limit is reached.

<Sysname> system-view

[Sysname] ipv6 netstream max-entry aging

ipv6 netstream outbound srv6-policy

Use ipv6 netstream outbound srv6-policy to enable IPv6 NetStream for an SRv6 TE policy.

Use undo ipv6 netstream outbound srv6-policy to disable IPv6 NetStream for an SRv6 TE policy.

Syntax

ipv6 netstream outbound srv6-policy end-point ipv6 ipv6-address color color-value

undo ipv6 netstream outbound srv6-policy end-point ipv6 ipv6-address color color-value

Default

IPv6 NetStream is disabled for an SRv6 TE policy.

Views

System view

Predefined user roles

network-admin

Parameters

end-point ipv6 ipv6-address: Specifies the IPv6 address of the destination node for an SRv6 TE policy.

color color-value: Specifies the color for an SRv6 TE policy, in the range of 0 to 4294967295.

Usage guidelines

Execute this command on the ingress node for an SRv6 TE policy to enable IPv6 NetStream to collect statistics about the outgoing traffic forwarded based on that SRv6 TE policy. For more information about SRv6 TE policies, see Segment Routing Configuration Guide.

Global IPv6 NetStream configuration does not take effect on NetStream based on an SRv6 TE policy.

Examples

# Enable IPv6 NetStream for the SRv6 TE policy whose destination node is at 1000::1 and color is 10.

<Sysname> system-view

[Sysname] ipv6 netstream outbound srv6-policy endpoint ipv6 1000::1 color 10

ipv6 netstream srv6 inner-packet

Use ipv6 netstream srv6 inner-packet to enable IPv6 NetStream statistics collection for the payload packets in SRv6-tunneled packets.

Use undo ipv6 netstream srv6 inner-packet to disable IPv6 NetStream statistics collection for the payload packets in SRv6-tunneled packets.

Syntax

ipv6 netstream srv6 inner-packet

undo ipv6 netstream srv6 inner-packet

Default

IPv6 NetStream statistics collection is enabled for the payload packets in SRv6-tunneled packets.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This feature enables IPv6 NetStream to collect statistics about the source IPv6 address, destination IPv6 address, protocol number, source port number, and destination port number of the payload packets in the SRv6-tunneled packets. When you disable the feature, IPv6 NetStream collects statistics about the source IPv6 address, destination IPv6 address, protocol number, source port number, and destination port number of the outer header packets in the SRv6-tunneled packets.

Examples

# Enable IPv6 NetStream statistics collection for the payload packets in SRv6-tunneled packets.

<Sysname> system-view

[Sysname] ipv6 netstream srv6 inner-packet

ipv6 netstream timeout active

Use ipv6 netstream timeout active to set the aging timer for active flows.

Use undo ipv6 netstream timeout active to restore the default.

Syntax

ipv6 netstream timeout active minutes

undo ipv6 netstream timeout active

Default

The aging timer is 30 minutes for active flows.

Views

System view

Predefined user roles

network-admin

Parameters

minutes: Sets the aging timer for active flows, in the range of 1 to 60 minutes.

Usage guidelines

A flow is considered active if packets for the IPv6 NetStream entry arrive before the timer set by this command expires.

Examples

# Set the aging timer to 60 minutes for active flows.

<Sysname> system-view

[Sysname] ipv6 netstream timeout active 60

Related commands

ipv6 netstream timeout inactive

Use ipv6 netstream timeout inactive to set the aging timer for inactive flows.

Use undo ipv6 netstream timeout inactive to restore the default.

Syntax

ipv6 netstream timeout inactive seconds

undo ipv6 netstream timeout inactive

Default

The aging timer is 30 seconds for inactive flows.

Views

System view

Predefined user roles

network-admin

Parameters

seconds: Sets the aging timer for inactive flows, in the range of 10 to 600 seconds.

Usage guidelines

A flow is considered inactive if no packet for the IPv6 NetStream entry arrives before the timer set by this command expires.

Examples

# Set the aging timer to 60 seconds for inactive flows.

<Sysname> system-view

[Sysname] ipv6 netstream timeout inactive 60

Related commands

ipv6 netstream timeout active

reset ipv6 netstream statistics

Use reset ipv6 netstream statistics to age out all flows in the cache and export IPv6 NetStream data.

Syntax

reset ipv6 netstream statistics

Views

User view

Predefined user roles

network-admin

Usage guidelines

It takes the system several minutes to execute the command. During this period, the system does not collect IPv6 NetStream data.

Examples

# Age out and export all IPv6 NetStream data.

<Sysname> reset ipv6 netstream statistics

This process may take a few minutes.

NetStream statistic function is disabled during this process.

14-Network Management and Monitoring Command Reference

ipv6 netstream (interface view)

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