Cisco Cisco Nexus 5010 Switch

 shows the configuration limits in topologies that include Cisco Nexus 5000 series dual homed 

fabric extender configurations.

Member interfaces per EtherChannel

16

16

IGMP snooping groups

8000

7

8000

Maximum FEXs per Cisco Nexus 5500 Series 
Switch

24

24

Maximum FEXs dual homed to a vPC Cisco 
Nexus 5500 Series switch pair

24

24

MAC table size

25000 unicast entries and 

4000 multicastentries

32000

Number of Switch port EtherChannels

48- Nexus 5548 or Nexus 
5548UP switch

48-Nexus 5548 or Nexus 
5548UP switch
96- Nexus 5596 switch

Number of FEX port channels/vPCs (across 
maximum number of FEXs)

576

1152

Number of SVIs

2

256

FabricPath VLANs

1000

8

4000

FabricPath Switch IDs

128

128

FabricPath multicast tree

2

2

Number of FabricPath topologies

2

2

Number of FabricPath core port channels

4 core links with 4 ports 
each

16 

1.

Verified Topology—Indicates the verified scaling capabilities with all listed features enabled at the same time. The 
numbers listed here exceed that used by most customers in their topologies. The scale numbers listed here are not the 
maximum verified values if each feature is viewed in isolation.

2.

Maximum Limits—Indicates the maximum scale capability tested for the corresponding feature individually. This number 
is the absolute maximum currently supported by Cisco NX-OS Release 5.1(3)N1(1) software for the corresponding feature. 
If the hardware is capable of a higher scale, future software releases may increase this maximum limit.

3.

4013 VLANs have been verified in Layer 2 switching, Fibre Channel and FCoE topology configuration limits

4.

Logical interfaces are a product of the number of VLANs times the number of ports. This parameter reflects the load of 
handling port programming, and is not dependent on the spanning-tree mode or configuration.

5.

32,000 STP logical interfaces has been verified in topology.

6.

32,000 PV scaling number applies to PVST, MST, and non STP modes.

7.

The default max-limit of IGMP Snooping groups is 4000 but it can be increased to 8000 using the hardware multicast 
snooping group-limit 8000 command.

8.

4000 FabricPath VLANs have been tested in the unified fabric topology.