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This document describes the Cisco configuration limits for Cisco Nexus 5000 Series switches running Cisco NX-OS Release 4.2(1)N1(1) and Release 4.2(1)N2(1). Some of these limits apply only when one or more Cisco Nexus 2000 Fabric Extender units are attached to the switch.
The following tables list the Cisco verified limits for Cisco Nexus 5000 Series switches running Cisco NX-OS Release 4.2(1)N1(1) and Release 4.2(1)N2(1).
Parameter |
Limit |
---|---|
Active VLANs/VSANs per switch |
507 (505 when Fibre Channel over Ethernet is enabled). 31 are set aside for VSANs and the remaining are for VLANs. |
VLAN/VSAN ID Space |
4,096 |
STP Logical Interfaces |
12,0001 |
MST Instances per bridge topology per switch |
64 (IEEE Standard) |
VLAN ACLs (VACLs) per switch |
1,024 |
Port ACLs (PACLs) per switch |
2562 |
ACL Accounting |
32 |
Member interfaces per EtherChannel |
16 |
Parameter |
Limit |
---|---|
Device Aliases per fabric |
8,000 |
Switches per physical fabric or VSAN |
503 |
Domains per VSAN |
404 |
Native FC Links per switch |
16—Requires two N5K-M1008 expansion modules. |
FLOGIs or FDISCs per NPV port group |
255 |
Zones per virtual or physical F port (includes all VSANs) |
32 |
Zone sets per switch (includes all VSANs) |
5005 |
Zone members per physical fabric (includes all VSANs) |
8,0006 |
Zones per switch (includes all VSANs) |
8,000 |
Maximum diameter of a SAN Fabric |
3 hops7 |
FSPF interface instances per switch |
5128 |
ISL instances per switch |
2569 |
Virtual Fibre Channel interfaces |
16010 |
Max FCIDs allocated |
2,048 |
Fibre Channel Flows |
32 |
Parameter |
Limit |
---|---|
Maximum Fabric Extenders per Cisco Nexus 5000 Series switch |
12 units11 |
Maximum Fabric Extenders dual-homed to a vPC Cisco Nexus 5000 Series switch pair |
12 units12 |
Maximum vPCs per Fabric Extender | 576 vPCs with the Nexus 2148T Fabric Extender 576 vPCs with the Nexus 2248 Fabric Extender 384 vPCs with the Nexus 2232 Fabric Extender |
Maximum number of hosts connected to Cisco Nexus 2000 Fabric Extenders connected to Cisco Nexus 5000 Series switches |
576 hosts13 |
MAC Table Size |
16,000 entries14 |
Event Traps - forward via Email |
4 destinations15 |
QoS System Classes |
5 all user-configurable classes |
Port channels |
4 SAN port channels and 16 EtherChannels (with the combination not exceeding 16, and not more than a total of 16 ports per EtherChannels) |
SPAN Sessions |
2 active sessions |
Egress SPAN sources |
2 |