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Cisco Nexus 1000V Resource Availability Reference,Release 4.2(1)SV2(2.1)

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Cisco Nexus 1000V Resource Availability Reference, Release 4.2(1)SV2(2.1)

Table Of Contents

Cisco Nexus 1000V Resource Availability Reference, Release 4.2(1)SV2(2.1)

Contents

Introduction to Resource Availability

Availability of the Resources

Examples of the Show Commands

Limitations and Restrictions

Configuration Limits

Related Documentation

Obtaining Documentation and Submitting a Service Request


Cisco Nexus 1000V Resource Availability Reference, Release 4.2(1)SV2(2.1)


Release Date: September 13, 2013
Part Number: OL-29179-01
Current Release: NX-OS Release 4.2(1)SV2(2.1)

This document describes the availability of the system-wide resources with respect to the supported configuration limits on the Cisco Nexus 1000V Release 4.2(1)SV2(2.1) software. The following is the change history for this document.

Part Number
Revision
Date
Description

OL-29179-01

A0

June 21, 2013

Created Cisco Nexus 1000V Resource Availability Document for Release 4.2(1)SV2(2.1).

OL-29179-01

B0

September 13, 2013

Updated the value of Active VLANs and VXLANs across all VEMs in Table 3.


Contents

This document includes the following sections:

Introduction to Resource Availability

Availability of the Resources

Examples of the Show Commands

Limitations and Restrictions

Introduction to Resource Availability

Starting with Release 4.2(1)SV2(1.1), the Cisco Nexus 1000V software is enhanced to keep a track of the usage of system-wide resources with respect to the supported configuration limits on Cisco Nexus 1000V. This enhancement to the NX-OS code base implements a series of show commands that display the current and maximum system limits for the various resources and their current availability.

The format for the command is show resource-availability [resource] [module <id>]. The resource is an optional argument that could either be a specific resource, for example, VLAN or all. The module is an optional keyword that is followed by a specific module number argument.

The show resource-availability <resource> command displays the availability information on the distributed virtual switch (DVS) and on each module for the specified resource. The show resource-availability <resource> module <id> command displays the availability information only for the specified module.

The command show resource-availability only displays the DVS-wide availability information about the key resources, for example, hosts, port-profiles, vEthernet ports, port-channels, and VLANs.

The show resource-availability all command prints the availability information on the DVS and each module for all the resources. The CLI is implemented as a sequence of show resource-availability <resource> commands iterating through all the resources.


Note You cannot generate xml output for show resource-availability all command.


The show resource-availability module <id> command displays the availability information for the specified module for all the resources that have a per-module configuration limit. The CLI is implemented as a series of show resource-availability <resource> module <id> commands.

Table 1 lists the resources and the corresponding aggregate commands.

Table 1 Resources and the Corresponding Aggregate Commands 

Resource
show resource-availability
show resource-availability all
show resource-availability module < mod >

Hosts

X

X

 

Port-profiles

X

X

 

vEthernet ports

X

X

X

Port-channels

X

X

X

VLANs

X

X

 

VXLANs (Bridge Domains)

X

X

 

ACL

 

X

X

Ethernet ports

 

X

X

MAC table entries

 

X

X

Multicast groups

 

X

 

Netflow

 

X

X

Port security

 

X

 

PVLANs

 

X

 

QoS

 

X

X

SPAN/ERSPAN

 

X

 

Availability of the Resources

Table 2 lists the resources and the corresponding aggregate commands.

Table 2 Availability of the Resources 

Resource
Command
Description

Hosts

show resource-availability hosts

Displays the maximum number of hosts that can be added to the DVS, the number of hosts that are currently powered up, the number of hosts that are currently absent, and the number of hosts that can be further added to the DVS.

Port-profiles

show resource-availability port-profile

Displays the number of port profiles and system port profiles that are currently created, and the number of port profiles and system port profiles that are available.

vEthernet ports

show resource-availability vethports

Displays the maximum number of vEthernet ports supported per DVS, their current usage, and availability.

Displays the maximum number of vEthernet ports per module, their current usage, and availability.

Port-channels

show resource-availability port-channel

Displays the number of port channels that are currently created, and the number of port channels that are available.

Displays the maximum number of port channels supported per module, their current usage, and the availability for each module.

VLANs

show resource-availability vlan

Displays the number of VLANs that are currently created, and the number of VLANs that are available.

VXLANs (Bridge Domains)

show resource-availability bridge-domain

Displays the maximum number of bridge-domains per DVS, the number of bridge-domains that are currently created, and the number of bridge-domains that are available.

ACL

show resource-availability acl

Displays the maximum number of ACLs per DVS, their current usage, and the availability.

Displays the maximum number of ACL instances per DVS, their current usage, and the availability.

Displays the maximum number of ACL instances per module and the ACL instance usage per module.

Ethernet ports

show resource-availability ethports

Displays the maximum number of physical NICs that can be added to a module, their current usage, and availability.

MAC table entries

show resource-availability mac-address-table

Displays the maximum number of MAC addresses supported per module, their current usage, and availability.

Netflow

show resource-availability netflow

Displays the maximum number of netflow monitors per DVS, their current usage, and availability.

Displays the maximum number of netflow instances per DVS, their current usage, and availability.

Displays the maximum number of netflow instances per module and the instance usage per module.

Port security

show resource-availability port-security macs

Displays the maximum number of secure MAC addresses that are allowed, their current usage, and availability.

Private VLANs

show resource-availability private-vlan

Displays the number of Private VLANs that are currently created, and the number of Private VLANs that are available.

Displays the maximum number of primary VLANs per promiscuous trunk port and the maximum number of Private VLAN associations.

QoS

show resource-availability qos-queuing

Displays the maximum number of classmaps per DVS, their current usage, and availability.

Displays the maximum number of policy maps per DVS, their current usage, and availability.

Displays the maximum number of instances per DVS, their current usage, and availability.

Displays the maximum number of instances per module and the instance usage per module.

SPAN/ERSPAN

show resource-availability monitor

Displays the following details:

The maximum number of monitor sessions supported on a DVS, current usage, and availability.

The maximum number of source interfaces per monitor session.

The maximum number of source VLANs per monitor session.

The maximum number of destination interfaces per local monitor session.

The maximum number of destination IP addresses per ERSPAN source session.


Examples of the Show Commands

Refer to this section for the examples of the show commands to display the availability of the resources.

n1000v# show resource-availability ?
<CR>
  >                  Redirect it to a file
  >>                 Redirect it to a file in append mode
  acl                Show resource information for Acl
  all                Show resource information for all resources
  bridge-domain      Show resource information for bridge-domains
  ethports           Show resource information for ethernet ports
  hosts              Show resource information for hosts
  ip                 Show resource information for IP
  mac-address-table  Show resource information for mac address table
  module             Show resource information for a specific VEM
  monitor            Show resource information for ethernet span
  netflow            Show resource information for Netflow
  port-channel       Show resource information for port channels
  port-profile       Show resource information for port-profiles
  port-security      Show resource information for port security
  private-vlan       Show resource information for private vlan
  qos-queuing        Show resource information for QoS and Queuing
  vethports          Show resource information for vethernet ports
  vlan               Show resource information for vlan
  |                  Pipe command output to filter
 
   
n1000v# show resource-availability acl
	Maximum number of access lists per DVS is 128
	The number of access lists created is 1
	The number of access lists available is 127
 
   
	Maximum number of ACL Instances per DVS is 4096
	The number of ACL Instances created is 0
	The number of ACL instances available is 4096
 
   
	Maximum number of ACL Instances per module is 300
 
   
	Following table shows the per module instance usage
 
   
	----------------------------------------------------------------
	Module  Used  Available
	----------------------------------------------------------------
 
   
n1000v# show resource-availability all ?
<CR>
  >      Redirect it to a file
  >>     Redirect it to a file in append mode
  |      Pipe command output to filter
 
   
n1000v# show resource-availability bridge-domain ?
<CR>
  >      Redirect it to a file
  >>     Redirect it to a file in append mode
  |      Pipe command output to filter
 
   
n1000v# show resource-availability bridge-domain
	Maximum number of bridge-domains per DVS: 2048
	Number of bridge-domains currently created: 2
	Number of bridge-domains available*: 2046
 
   
	* available bridge-domains do not account for created VLANs
 
   
n1000v# show resource-availability ethports
 
   
	Maximum number of Eth ports per module: 32
	
	--------------------------------------------------------------------------------
	Module  Used  Available
	--------------------------------------------------------------------------------
     3     1         31
     4     1         31
     5     2         30
     6     1         31
 
   
n1000v# show resource-availability hosts
	Maximum number of hosts that can be added to DVS: 128
	Number of hosts currently powered up: 4
	Number of hosts currently absent: 0
	Number of hosts that can be added further: 124
 
   
n1000v# show resource-availability ip igmp snooping
	Max number of IGMP groups supported: 512
	Number of IGMP groups in use: 0
	Number of IGMP groups available: 512
 
   
n1000v## show resource-availability mac-address-table
 
   
	Maximum MAC Addresses per module: 32000
	--------------------------------------------------------------------------------
	Module  Used  Available
	--------------------------------------------------------------------------------
     3    83      31917
	 4    78      31922
	 5    97      31903
	 6    86      31914
 
   
n1000v#k# show resource-availability mac-address-table module 3
 
   
	Maximum MAC Addresses per module: 32000
	--------------------------------------------------------------------------------
	Module  Used  Available
	--------------------------------------------------------------------------------
     3    80      31920
 
   
n1000v# show resource-availability module ?
	<3-130>  	Enter module number
 
   
n1000v# show resource-availability monitor
	Maximum number of monitor sessions per DVS: 64
	Number of monitor sessions in use: 0
	Number of monitor sessions available: 64
	Maximum number of source interfaces per session: 128
	Maximum number of source vlans per session: 32
	Maximum number of destination interfaces per local monitor session: 32
	Maximum number of destination IP addresses per erspan-src session: 1
 
   
	Ssn   Type 				Used Src  Avl Src   Used Src  Avl Src   Used Dst  Avl Dst
                  					Intf      Intf      Vlans     Vlans
	---  ----------  --------  --------  --------  --------  --------  --------
 
   
n1000v# show resource-availability netflow
	Maximum number of netflow monitors per DVS is 32
	The number of monitors created is 0
	The number of netflow monitors available is 32
 
   
	Maximum number of netflow instances per DVS is 256
	The number of netflow instances created is 0
	The number of netflow instances available is 256
 
   
	Maximum number of netflow instances per module is 32
 
   
	Following table shows the per module instance usage
	----------------------------------------------------------------
	Module  Used  Available
	---------------------------------------------------------------
 
   
n1000vk# show resource-availability netflow module 3
	Maximum number of netflow instances per host is 32
	Instances created is      0
	Instances available is     32
 
   
n1000v# show resource-availability port-channel ?
  <CR>
  >       	Redirect it to a file
  >>      	Redirect it to a file in append mode
  module  	Show VEM specific information
  |       	Pipe command output to filter
n1000v# show resource-availability port-channel
 
   
	Maximum number of port channels per DVS: 512
	Number of port channels currently created: 0
	Number of port channels available: 512
 
   
	Maximum number of port channels per module: 8
	--------------------------------------------------------------------------------
	Module  Used  Available
	--------------------------------------------------------------------------------
     3     1          7
     4     1          7
     5     2          6
     6     1          7
 
   
	Note: Modules not seen in above table are either not added to DVS or have all 8
	port channels available 
 
   
n1000v# show resource-availability port-channel module ?
  <3-66>  	Enter module number
 
   
n1000v# show resource-availability port-channel module 3 ?
	Maximum number of port channels per module: 8
	Number of port channels in module: 1
	Number of port channels available for module: 7
 
   
n1000v# show resource-availability port-security macs
 
   
	----------------------------------------------------
	Allowed Used    Avail
	----------------------------------------------------
	8192    0       8192
	----------------------------------------------------
 
   
n1000v# show resource-availability private-vlan
 
   
	Maximum number of Private VLANs per DVS: 512
	Number of used Private VLANs: 6
	Number of available Private VLANs : 506
	Maximum number of Primary VLANs per promiscuous trunk port: 64
	Maximum number of Private VLAN associations: 511
 
   
 
   
n1000v#k# show resource-availability qos-queuing
	Maximum number of classmaps per DVS is 1024
	The number of classmaps created is 171
	The number of classmaps available is 853
 
   
	Maximum number of policy maps per DVS is 128
	The number of policy maps created is 38
	The number of policy maps available is 90
 
   
	Maximum number of instances per DVS is 4096
	The number of instances created is 3
	The number of instances available is 4093
 
   
	Maximum number of instances per module is 300
 
   
	Following table shows the per module instance usage
	----------------------------------------------------------------
	Module  Used  Available
	----------------------------------------------------------------
	 4     		3 		297
n1000v# show resource-availability qos-queuing module 3
	Maximum number of instances per host is 300
	Instances created is      3
	Instances available is 297
 
   
n1000v#k# show resource-availability vethports
 
   
	Maximum number of Veth ports per DVS: 4096
	Number of Veth ports used: 7
	Number of Veth ports available : 4089
	Maximum number of Veth ports per module: 300
	--------------------------------------------------------------------------------
	Module  Used  Available
	--------------------------------------------------------------------------------
     3     3        297
     5     4        296
 
   
n1000v# show resource-availability vethports module 4
 
   
	Maximum number of Veth ports per module: 300
	Number of Veth ports in module: 0
	Number of Veth ports available for module: 300
 
   
n1000v# show resource-availability vlan
 
   
	Maximum number of user VLANs supported: 2048
	Number of user VLANs created          : 1035
	Total number of available user VLANs  : 1013
 
   
	Note: Total number of available user VLANs do not account for created bridge-domains.

Limitations and Restrictions

The Cisco Nexus 1000V has the following limitations and restrictions:

Configuration Limits

Configuration Limits

Table 3 shows the Cisco Nexus 1000V configuration limits:

Table 3 Configuration Limits for Cisco Nexus 1000V  

Component
Supported Limits for a Single Cisco Nexus 1000V Deployment Spanning up to 2 Physical Data Centers 

Maximum Modules

130

Virtual Ethernet Module (VEM)

128

Virtual Supervisor Module (VSM)

The VSMs can be placed in different physical data centers.

Note that the previous restrictions requiring the active-standby VSMs in a single physical data center do not apply anymore.

Hosts

128

Active VLANs and VXLANs across all VEMs

2048 VLANs and 2048 VXLANs (with a combined maximum of 4096)

MACs per VEM

32000

MACs per VLAN per VEM

4096

vEthernet interfaces per port profile

1024 (without static auto expand port binding)

Same as DVS maximum (with static auto expand port binding)

PVLAN

512

Distributed Virtual Switches (DVS) per vCenter with VMware vCloud Director (vCD)

32

Distributed Virtual Switches (DVS) per vCenter without VMware vCloud Director (vCD)

32

vCenter Server connections

1 per VSM HA Pair1

Maximum latency between VSMs and VEMs

100ms

 
Per DVS
Per Host

vEthernet interfaces

4096

3002

Port profiles

2048

System port profiles

32

32

Port channel

512

8

Physical trunks

512

Physical NICs

32

vEthernet trunks

256

8

ACL

128

163

ACEs per ACL

128

128

ACL instances

4096

300

NetFlow policies

32

8

NetFlow instances

256

32

SPAN/ERSPAN sessions

64

64

QoS policy map

128

16

QoS class map

1024

128

QoS instances

4096

300

Port security

2048

216

MultiCast groups

512

512

1 Only one connection to vCenter server is permitted at a time.

2 Upgrade from an earlier version of Cisco Nexus 1000V software to the current version of Cisco Nexus 1000V software displays the maximum vEth ports as 216. To get the current supported vEth limit, remove the host from DVS and add the host again.

3 This number can be exceeded if VEM has available memory.


Related Documentation

This section lists the documents used with the Cisco Nexus 1000V and available on Cisco.com at the following URL:

http://www.cisco.com/en/US/products/ps9902/tsd_products_support_series_home.html

General Information

Cisco Nexus 1000V Documentation Roadmap

Cisco Nexus 1000V Release Notes

Cisco Nexus 1000V Compatibility Information

Install and Upgrade

Cisco Nexus 1000V Installation and Upgrade Guide

Configuration Guides

Cisco Nexus 1000V High Availability and Redundancy Configuration Guide

Cisco Nexus 1000V Interface Configuration Guide

Cisco Nexus 1000V Layer 2 Switching Configuration Guide

Cisco Nexus 1000V License Configuration Guide

Cisco Nexus 1000V Network Segmentation Manager Configuration Guide

Cisco Nexus 1000V Port Profile Configuration Guide

Cisco Nexus 1000V Quality of Service Configuration Guide

Cisco Nexus 1000V REST API Plug-in Configuration Guide

Cisco Nexus 1000V Security Configuration Guide

Cisco Nexus 1000V System Management Configuration Guide

Cisco Nexus 1000V vCenter Plugin Configuration Guide

Cisco Nexus 1000V VXLAN Configuration Guide

Cisco Nexus 1000V vCenter Plugin Configuration Guide

Programming Guide

Cisco Nexus 1000V XML API User Guide

Reference Guides

Cisco Nexus 1000V Command Reference

Cisco Nexus 1000V MIB Quick Reference

Cisco Nexus 1000V Resource Availability Reference

Troubleshooting, Password Recovery, System Messages Guides

Cisco Nexus 1000V Troubleshooting Guide

Cisco Nexus 1000V Password Recovery Guide

Cisco NX-OS System Messages Reference

Virtual Services Appliance Documentation

The Cisco Nexus Virtual Services Appliance (VSA) documentation is available at

http://www.cisco.com/en/US/products/ps9902/tsd_products_support_series_home.html

Virtual Security Gateway Documentation

The Cisco Virtual Security Gateway documentation is available at

http://www.cisco.com/en/US/products/ps13095/tsd_products_support_series_home.html

Virtual Network Management Center

The Cisco Virtual Network Management Center documentation is available at

http://www.cisco.com/en/US/products/ps11213/tsd_products_support_series_home.html

Virtual Wide Area Application Services (vWAAS)

The Virtual Wide Area Application Services documentation is available at

http://www.cisco.com/en/US/products/ps6870/tsd_products_support_series_home.html

ASA 1000V Cloud Firewall

The ASA 1000V Cloud Firewall documentation is available at

http://www.cisco.com/en/US/products/ps12233/tsd_products_support_series_home.html

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see What's New in Cisco Product Documentation at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html.

Subscribe to What's New in Cisco Product Documentation, which lists all new and revised Cisco technical documentation, as an RSS feed and deliver content directly to your desktop using a reader application. The RSS feeds are a free service.

This document is to be used in conjunction with the documents listed in the "Related Documentation" section.