Cisco Nexus 7000 Series Installation manual

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Cisco Nexus 7000 Series NX-OS IP Service
Level Agreements (SLAs) Command
Reference
First Published: October 2008
Last Modified: August 2013
Text Part Number: OL-27555-03

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Cisco Nexus 7000 Series NX-OS IP Service Level Agreements (SLAs) Command Reference
© 2008-2013 Cisco Systems, Inc. All rights reserved.

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CONTENTS
New and Changed Information 17
Cisco Nexus 7000 Series IP SLAs Commands 11
clock-tolerance 12
data-pattern 13
frequency 14
history buckets-kept 15
history distribution-of-statistics-kept 16
history enhanced 18
history filter 110
history hours-of-statistics-kept 111
history lives-kept 112
history statistics-distribution-interval 114
icmp-echo 115
interface 116
ip access-list 117
ip address 118
ip sla 119
ip sla group schedule 121
ip sla schedule 124
match ip address 126
next-hop-address 128
operation-packet-priority 129
owner 130
permit ip 131
precision 132
request-data-size 133
route-map 134
set ip next-hop verify-availability 135
show ip sla application 136
show ip sla configuration 138

Contents
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show ip sla group schedule 140
show ip sla statistics 141
tag 145
tcp-connect 146
threshold 148
timeout 149
tos 151
track 152
udp-echo 153
udp-jitter 155
verify-data 158

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Preface
This preface describes the audience, organization, and conventions of the Cisco Nexus 7000 Series
NX-OS IP SLAs Command Reference and how to obtain related documentation.
This chapter includes the following sections:
•Audience, page 1
•Organization, page 1
•Document Conventions, page 1
•Related Documentation, page 2
•Documentation Feedback, page 4
•Obtaining Documentation and Submitting a Service Request, page 4
Audience
This publication is for experienced users who configure and maintain Cisco NX-OS devices.
Organization
This reference is organized as follows:
Document Conventions
Command descriptions use these conventions:
Chapter and Title Description
New and Changed Information Describes the Cisco NX-OS IP Service Level
Agreements (SLAs) commands.
Convention Description
boldface font Commands and keywords are in boldface.
italic font Arguments for which you supply values are in italics.

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Screen examples use these conventions:
This document uses the following conventions:
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.
Caution Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Tip Means the following information will help you solve a problem.
Related Documentation
Cisco NX-OS includes the following documents:
Release Notes
Cisco Nexus 7000 Series NX-OS Release Notes, Release 6.x
Cisco NX-OS Configuration Guides
Cisco Nexus 2000 Series Fabric Extender Software Configuration Guide
Cisco Nexus 7000 Series NX-OS Configuration Examples
Cisco Nexus 7000 Series NX-OS FabricPath Configuration Guide
Configuring Feature Set for FabricPath
Cisco Nexus 7000 Series NX-OS Fundamentals Configuration Guide
[ ] Elements in square brackets are optional.
[ x | y | z ] Optional alternative keywords are grouped in brackets and separated by vertical
bars.
string A nonquoted set of characters. Do not use quotation marks around the string or
the string will include the quotation marks.
screen font Terminal sessions and information that the switch displays are in screen font.
boldface screen
font
Information you must enter is in boldface screen font.
italic screen font Arguments for which you supply values are in italic screen font.
< > Nonprinting characters, such as passwords, are in angle brackets.
[ ] Default responses to system prompts are in square brackets.
!, # An exclamation point (!) or a pound sign (#) at the beginning of a line of code
indicates a comment line.

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Cisco Nexus 7000 Series NX-OS High Availability and Redundancy Guide
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide
Cisco Nexus 7000 Series NX-OS IP SLAs Configuration Guide
Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide
Cisco Nexus 7000 Series NX-OS LISP Configuration Guide
Cisco Nexus 7000 Series NX-OS MPLS Configuration Guide
Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide
Cisco Nexus 7000 Series NX-OS OTV Configuration Guide
Cisco Nexus 7000 Series OTV Quick Start Guide
Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide
Cisco Nexus 7000 Series NX-OS SAN Switching Configuration Guide
Cisco Nexus 7000 Series NX-OS Security Configuration Guide, Release
Cisco Nexus 7000 Series NX-OS System Management Configuration Guide
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide,
Cisco Nexus 7000 Series NX-OS Virtual Device Context Configuration Guide
Cisco Nexus 7000 Series NX-OS Virtual Device Context Quick Start
Cisco NX-OS FCoE Configuration Guide for Cisco Nexus 7000 and Cisco MDS 9500
NX-OS Command References
Cisco Nexus 7000 Series NX-OS Command Reference Master Index
Cisco Nexus 7000 Series NX-OS FabricPath Command Reference
Cisco Nexus 7000 Series NX-OS Fundamentals Command Reference
Cisco Nexus 7000 Series NX-OS High Availability Command Reference
Cisco Nexus 7000 Series NX-OS Interfaces Command Reference
Cisco Nexus 7000 Series NX-OS IP SLAs Command Reference
Cisco Nexus 7000 Series NX-OS Layer 2 Switching Command Reference
Cisco Nexus 7000 Series NX-OS LISP Command Reference
Cisco Nexus 7000 Series NX-OS MPLS Command Reference
Cisco Nexus 7000 Series NX-OS Multicast Routing Command Reference
Cisco Nexus 7000 Series NX-OS OTV Command Reference
Cisco Nexus 7000 Series NX-OS Quality of Service Command Reference
Cisco Nexus 7000 Series NX-OS SAN Switching Command Reference
Cisco Nexus 7000 Series NX-OS Security Command Reference
Cisco Nexus 7000 Series NX-OS System Management Command Reference
Cisco Nexus 7000 Series NX-OS Unicast Routing Command Reference
Cisco Nexus 7000 Series NX-OS Virtual Device Context Command Reference
Cisco NX-OS FCoE Command Reference for Cisco Nexus 7000 and Cisco MDS 9500

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Obtaining Documentation and Submitting a Service Request
Other Software Documents
Cisco NX-OS Licensing Guide
Cisco Nexus 7000 Series NX-OS MIB Quick Reference
Cisco Nexus 7000 Series NX-OS Software Upgrade and Downgrade Guide
Cisco NX-OS System Messages Reference
Cisco Nexus 7000 Series NX-OS Troubleshooting Guide
Cisco NX-OS XML Interface User Guide
Documentation Feedback
To provide technical feedback on this document, or to report an error or omission, please send your
comments to nexu[email protected]. We appreciate your feedback.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a
service request, and gathering additional information, see What’s New in Cisco Product Documentation.
To receive new and revised Cisco technical content directly to your desktop, you can subscribe to
the What’s New in Cisco Product Documentation RSS feed. The RSS feeds are a free service.

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New and Changed Information
This chapter provides release-specific information for each new and changed feature in the Cisco Nexus
7000 Series NX-OS IP Service Level Agreements Command Reference. The latest version of this
document is available at the following Cisco website:
http://www.cisco.com/c/en/us/support/switches/nexus-7000-series-switches/products-command-refere
nce-list.html
To check for additional information about this Cisco NX-OS Release, see the Cisco NX-OS Release
Notes available at the following Cisco website:
http://www.cisco.com/c/en/us/support/switches/nexus-7000-series-switches/products-release-notes-list
.html
The following table summarizes the new and changed features for the Cisco Nexus 7000 Series NX-OS
IP Service Level Agreements Command Reference.
Table 1 New and Changed Information
Feature Description Changed in Release
IPSLA Added the fabric-path echo command 7.2(0)D1(1)
Added the cmp-echo command. 6.2(2)
Added the ip access-list 6.2(2)
Added the match ip address command.6.2(2)
Added the track command. 6.2(2)
Added the route-map command. 6.2(2)
Added the permit ip command. 6.2(2)
Added the set ip next-hop verify-availability
command.
6.2(2)
Added the ip address command. 6.2(2)
Added the interface command. 6.2(2)
Added the udp-echo command. 6.1(1)
Added the udp-jitter command. 6.1(1)
Added the tcp-connect command. 6.1(1)
Added the ip sla command. 6.1(1)
Added the ip sla schedule command. 6.1(1)
Added the data-pattern command. 6.1(1)

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New and Changed Information
Added the verify-data command. 6.1(1)
Added the tos command. 6.1(1)
Added the timeout command. 6.1(1)
Added the threshold command. 6.1(1)
Added the tag command. 6.1(1)
Added the request-data-size command. 6.1(1)
Added the precision command. 6.1(1)
Added the owner command. 6.1(1)
Added the operation-packet-priority
command.
6.1(1)
Added the frequency command. 6.1(1)
Added the clock-tolerance command. 6.1(1)
Added the show ip sla configuration command. 6.1(1)
Added the show ip sla statistics command. 6.1(1)
Added the show ip sla application command. 6.1(1)
Added the ip sla group schedule command. 6.1(1)
Added the show ip sla group schedule
command.
6.1(1)
Added the history buckets-kept command. 6.1(1)
Added the history
distribution-of-statistics-kept command.
6.1(1)
Added the history enhanced command. 6.1(1)
Added the history filter command. 6.1(1)
Added the history hours-of-statistics-kept
command.
6.1(1)
Added the history lives-kept command. 6.1(1)
Added the history
statistics-distribution-interval command.
6.1(1)
Table 1 New and Changed Information
Feature Description Changed in Release

CHAPTER
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1
Cisco Nexus 7000 Series IP SLAs Commands
This chapter describes the Cisco NX-OS IP SLAs commands for the Cisco Nexus 7000 series devices.

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clock-tolerance
clock-tolerance
To set the acceptable Network Time Protocol (NTP) clock synchronization tolerance for a one-way Cisco
NX-OS IP Service Level Agreements (SLAs) operation measurement, use the clock-tolerance
command. To return to the default value, use the no form of this command.
clock-tolerance ntp oneway {absolute value | percent value}
no clock-tolerance ntp oneway
Syntax Description
Command Default The NTP clock synchronization tolerance is set to 0 percent.
Command Modes UDP jitter configuration mode (config-ip-sla-jitter)
Command History
Usage Guidelines You must configure the precession microseconds command before you use the clock-tolerance
command.
This command does not require a license.
Examples This example shows how to enable microsecond precision, configure the NTP synchronization offset
tolerance to 10 percent, and set the packet priority to high for IP SLAs UDP jitter operation 1:
switch(config)# ip sla 1
switch(config-ip-sla)# udp-jitter 205.199.199.2 1
switch(config-ip-sla-jitter)# clock-tolerance ntp oneway percent 10
%This configuration allowed only on microsecond precision probe
switch(config-ip-sla-jitter)#
Related Commands
absolute value Sets the NTP synchronization tolerance value to an absolute number, in
microseconds. The range is from 0 to 100000.
percent value Sets the NTP synchronization tolerance value as a percentage of the one-way
IP SLAs operation delay measurement. The range is from 0 to 100. The NTP
clock synchronization tolerance is set to 0 percent by default.
Release Modification
6.1(1) This command was introduced.
Command Description
show ip sla auto group Displays the configuration including default values of IP SLAs auto-measure
groups.

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data-pattern
data-pattern
To specify the data pattern in a Cisco NX-OS IP Service Level Agreements (SLAs) operation to test for
data corruption, use the data pattern command. To remove the data pattern specification, use the no
form of this command.
data-pattern hex-pattern
no data-pattern hex-pattern
Syntax Description
Defaults The default hex-pattern is ABCD.
Command Modes UDP echo configuration mode (config-ip-sla-udp)
Command History
Usage Guidelines The data-pattern command allows you to specify an alphanumeric character string to verify that the
operation payload does not get corrupted in either direction (source-to-destination or
destination-to-source.).
This command does not require a license.
Examples This example show how to specify 1234ABCD5678 as the data pattern in an IPv4 network:
switch(config)# ip sla 1
switch(config-ip-sla)# udp-echo 172.29.139.134 1
switch(config-ip-sla-udp)# data-pattern 1234ABCD5678
switch(config-ip-sla-udp)# ip sla schedule 1 life forever start-time now
switch(config)#
Related Commands
hex-pattern Hexadecimal string to use for monitoring the specified operation.
Release Modification
6.1(1) This command was introduced.
Command Description
filter-for-history Defines the type of information kept in the history table for the IP SLAs
operation.
ip sla monitor Begins the configuration for an IP SLAs operation and enters IP SLA
monitor configuration mode.
lives-of-history-kept Sets the number of lives maintained in the history table for the IP SLAs
operation.
samples-of-history-kept Sets the number of entries kept in the history table per bucket for the IP
SLAs operation.

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fabric-path echo
fabric-path echo
To configure a Cisco NX-OS IP Service Level Agreement (SLA) FabricPath echo probe operation, use
the fabric-patch echo command in the IP SLA sub-configuration mode.
fabric-path echo switch-id [profile profile-id [interface type number]]
Syntax Description
Command Default None.
Command Modes IP SLA sub-configuration (config-ip-sla)
Command History
Usage Guidelines Before starting the operation, install and enable the fabricpath feature set on the device.
Examples This example shows how to configure operation 6 as a Cisco NX-OS IP SLA FabricPath operation:
switch# configure terminal
switch(config)# feature sla sender
switch(config)# ip sla 6
switch(config-ip-sla)# fabric-path echo 1 profile 10 interface ethernet 1/0
switch(config-ip-sla-fabric)# exit
Related Commands
switch-id Identity of the destination device.
profile profile-id (Optional) Specifies the profile on the device. profile-id can range from 1
to 65536.
interface type number (Optional) Specifies the interface used. If no interface is selected, the
default interface on the device is used.
Release Modification
7.2(0)D1(1) This command was introduced.
Command Description
show ip sla statistics Displays the current operational status and statistics.

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frequency
frequency
To set the rate at which a specified IP Service Level Agreements (SLAs) operation repeats, use the
frequency command. To return to the default value, use the no form of this command.
frequency second
no frequency
Syntax Description
Command Default 60 seconds
Command Modes UDP echo configuration mode (config-ip-sla-udp)
UDP jitter configuration mode (config-ip-sla-jitter)
Command History
Usage Guidelines A single IP SLAs operation repeats at a given frequency for the lifetime of the operation. For example,
a User Datagram Protocol (UDP) jitter operation with a frequency of 60 sends a collection of data
packets (simulated network traffic) once every 60 seconds for the lifetime of the operation. The default
simulated traffic for a UDP jitter operation consists of ten packets sent 20 milliseconds apart. This
payload is sent when the operation is started and is sent again 60 seconds later.
If an individual IP SLAs operation takes longer to execute than the specified frequency value, a statistics
counter called “busy” is incremented rather than immediately repeating the operation.
This command does not require a license.
Examples This example shows how to configure an IP SLAs UDP echo operation (operation 10) to repeat every 90
seconds:
switch(config)# ip sla 1
switch(config-ip-sla)# udp-echo 205.199.199.2 1
switch(config-ip-sla-udp)# frequency 90
switch(config-ip-sla-udp)# ip sla schedule 10 life 300 start-time after 00:05:00
switch(config)#
Related Commands
seconds Number of seconds between the IP SLAs operations. The range is from 1 to
604800 seconds.
Release Modification
6.1(1) This command was introduced.
Command Description
show ip sla auto group Displays the configuration including default values of IP SLAs auto-measure
groups.

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history buckets-kept
history buckets-kept
To set the number of history buckets that are kept during the lifetime of a Cisco NX-OS IP Service Level
Agreements (SLAs) operation, use the history buckets-kept command. To return to the default value,
use the no form of this command.
history buckets-kept size
no history bucket-kept
Syntax Description
Command Default The default number of buckets kept is 15 buckets.
Command Modes TCP connect configuration mode (config-ip-sla-tcp)
UDP echo configuration mode (config-ip-sla-udp)
Command History
Usage Guidelines Each time that IP SLAs start an operation, a new bucket is created until the number of history buckets
that matches the specified size or the lifetime of the operation expires. History buckets does not wrap
(which means that the older information is not replaced by the newer information).
To define the lifetime of an IP SLAs operation, use the ip sla schedule command.
By default, the history for an IP SLAs operation is not collected. If history is collected, each bucket
contains one or more history entries from the operation.
The type of entry stored in the history table is controlled by the history filter command.
The total number of entries stored in the history table is controlled by the combination of the
samples-of-history-kept, history buckets-kept, and history lives-kept commands.
This command does not require a license.
Examples This example shows how to configure an UDP echo operation to keep 25 history buckets during the
operation lifetime:
switch(config)# ip sla 2
switch(config-ip-sla-udp)# history buckets-kept 25
switch(config-ip-sla-udp)#
size Number of history buckets kept during the lifetime of the operation. The
range is from 1 to 60.
Release Modification
6.1(1) This command was introduced.

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history distribution-of-statistics-kept
history distribution-of-statistics-kept
To set the number of statistics distributions kept per hop during a Cisco NX-OS IP Service Level
Agreements (SLAs) operation, use the history distributions-of-statistics-kept command. To return to
the default value, use the no form of this command.
history distributions-of-statistics-kept size
no history distributions-of-statistics-kept
Syntax Description
Command Default The default is 1 distribution.
Command Modes TCP connect configuration mode (config-ip-sla-tcp)
UDP echo configuration mode (config-ip-sla-udp)
UDP jitter configuration mode (config-ip-sla-jitter).
Command History
Usage Guidelines In most situations, you does not need to change the number of statistics distributions kept or the time
interval for each distribution. Change these parameters only when distributions are needed, for example,
when performing statistical modeling of your network.
To set the statistics distributions interval, use the history statistics-distribution-interval command.
When the number of distributions reaches the size specified, no further distribution-based information
is stored.
This command does not require a license.
Examples This example shows how to set the statistics distribution to five and the distribution interval to 10 ms for
an UDP echo operation. The first distribution contains statistics from 0 to 9 ms, the second distribution
contains statistics from 10 to 19 ms, the third distribution contains statistics from 20 to 29 ms, the fourth
distribution contain statistics from 30 to 39 ms, and the fifth distribution contains statistics from 40 ms
to infinity.
switch(config)# ip sla 1
switch(config-ip-sla)# udp-echo 172.16.161.21
switch(config-ip-sla-udp)# history distributions-of-statistics-kept 5
switch(config-ip-sla-udp)#
size Number of statistics distribution kept per hop. The size is from 1 to 20
characters.
Release Modification
6.1(1) This command was introduced.

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history distribution-of-statistics-kept
Related Commands Command Description
show ip sla auto group Displays the configuration including default values of IP SLAs auto-measure
groups.

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history enhanced
history enhanced
To enable enhanced history gathering for a Cisco NX-OS IP Service Level Agreements (SLAs)
operation, use the history enhanced command. To return to the default value, use the no form of this
command.
history enhanced [interval seconds] [buckets number-of-buckets]
no history enhanced
Syntax Description
Command Default Enhanced history gathering is disabled.
Command Modes TCP connect configuration mode (config-ip-sla-tcp)
UDP echo configuration mode (config-ip-sla-udp)
UDP jitter configuration mode (config-ip-sla-jitter)
Command History
Usage Guidelines This command enables enhanced history for the IP SLAs operation.
Performance statistics are stored in buckets that separate the accumulated data. Each bucket consists of
data accumulated over the specified time interval. When the interval expires, history statistics are
gathered in a new bucket. When the specified number of buckets is reached, statistic gathering for the
operation ends.
By default, IP SLAs maintain two hours of aggregated statistics for each operation. The value from each
operation cycle is aggregated with the previously available data within a given hour. The enhanced
history feature in IP SLAs allows for the aggregation interval to be shorter than one hour.
This command does not require a license.
Examples This example shows how to enable enhanced history gathering for a Cisco NX-OS IP Service Level
Agreements (SLAs) operation:
interval (Optional) Specifies the aggregation interval.
seconds Number of seconds (sec) that the enhanced history should be gathered in
each bucket. When this time expires, enhanced history statistics are
gathered in a new bucket. The range is from 1 to 3600 seconds.
buckets Specifies the number of buckets to collect data.
number-of-buckets Number of buckets that should be retained in the system memory. When
this number is reached, statistic gathering for the operation ends. The
default is 100.
Release Modification
6.1(1) This command was introduced.

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history enhanced
switch(config-ip-sla-udp)# history enhanced interval 900 buckets 100
switch(config-ip-sla-udp)#
Related Commands Command Description
show ip sla auto group Displays the configuration including default values of IP SLAs auto-measure
groups.