Table Of Contents

Configuration Limits

Configuration Limits

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Table 16-1 Configuration Limits for Cisco Nexus 1000V  

Component	Supported Limits for Cisco Nexus 1000V in the Same Datacenter		Supported Limits for Cisco Nexus 1000V Across Two Datacenters
Maximum Modules	66		34
Virtual Ethernet Module(VEM)	64		32
Virtual Supervisor Module (VSM)	2 in an HA Pair (active-standby hosted in the same datacenter)		2 in an HA Pair (active-standby hosted in the same datacenter)
vCenter Server Datacenters per VSM	1		1
Hosts	64		32
Active VLANs across all VEMs	2048		1024
MACs per VEM	32000		32000
MACs per VLAN per VEM	4000		4000
vEthernet interfaces per port profile	1024		1024
PVLAN	512		128
Distributed Virtual Switches (DVSes) per vCenter	12		12
vCenter Server connections	1 per VSM HA Pair1		1 per VSM HA Pair1
Maximum latency between VSMs and VEMs	—		5 ms
	Per DVS	Per Host	Per DVS	Per Host
Virtual Service Domains (VSDs)	64	6	32	3
VSD interfaces	2048	216	1024	108
vEthernet interfaces	2048	216	1024	108
Port profiles	2048	—	1024	—
System port profiles	32	32	16	16
Port channels	256	8	128	4
Physical trunks	512	—	256	—
Physical NICs	—	32	—	16
vEthernet trunks	256	8	128	4
ACLs	128	162	64	82
ACEs per ACL	128	1282	64	642
ACL instances	2048	256	1024	128
NetFlow policies	32	8	16	4
NetFlow instances	256	32	128	16
SPAN/ERSPAN sessions	64	64	32	32
QoS policy maps	128	128	64	64
QoS class maps	1024	1024	512	512
QoS instances	2048	256	1024	128
Port security	2048	216	1024	108
Multicast groups	512	512	256	256
DHCP snoop binding entries (static + dynamic)	2048	2048	1024	1024

1 Only one connection to vCenter server is permitted at a time. 2 This number can be exceeded if VEM has available memory.