Configuration Limits

Table Of Contents

Configuration Limits for Cisco NX-OS Layer 3 Unicast Features, Release 5.x

Configuration Limits for Cisco NX-OS Layer 3 Unicast Features, Release 5.x

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The features supported by Cisco NX-OS have maximum configuration limits. For some of the features, we have verified configurations that support limits less that the maximum. Table B-1 lists the Cisco verified limits and maximum limits for switches running Cisco NX-OS Release 5.x.

Table B-1 Cisco NX-OS Release 5.x Configuration Limits 

Feature	Verified Limit	Maximum Limit
Layer 3 subinterfaces	1000
BGP		1000 peers
		150,000 prefixes per peer
		20 million paths total
GLBP	1000 GLBP groups per system, with 3s/10s timers, 500 GLBP groups with 1s/3s timers.	1024 GLBP groups.
	200 GLBP groups per interface.
HSRP	2000 IPv4 groups per system, with 3s/10s timers. 1000 IPv4 groups plus 1000 IPv6 groups, with 3s/10s timers.	2048 HSRP groups.
	500 HSRP groups per physical interface or VLAN interface. 100 HSRP groups per port-channel interface.
Object tracking	500 objects.
OSPF	—	200 interfaces
	—	1000 routers
	—	300 adjacencies
	—	200,000 LSAs
	—	4 instances per VDC
	—	Up to the system maximum VRFs in an OSPF instance.
VRFs	1000 per system
	250 maximum on each VDC (with 4 VDCs)
	994 on one VDC (with 4 VDCs)
VRRP	255 groups