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C-1
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
APPENDIX
C
Configuration Limits for Cisco MDS SAN-OS
Release 3.x
The features supported by Cisco MDS SAN-OS have maximum configuration limits. For some of the
features, we have verified configurations that support limits less that the maximum. Table C-1 lists the
Cisco verified limits and maximum limits for switches running Cisco MDS SAN-OS Release 3.x.
Table C-1 Cisco MDS SAN-OS Release 3.x Configuration Limits
Feature Verified Limit Maximum Limit
Device alias 8K per fabric. 20K per fabric.
Event Traps - forward via Email 1 destination. Up to 10 destinations.
ISLB VRRP 20 per switch. 20 per switch.
NPV switches per NPV core switch 100 switches 100 switches
VSANs 80 VSANs per physical fabric. 4000 VSANs per physical fabric.
VSANs per NPV device 16 16
Switches in a single MDS physical fabric
or VSAN
55 switches.
1
239 switches.
Switches in a mixed or open physical
fabric or VSAN
32 switches. 239 switches.
Domains per VSAN 40 domains. 239 domains.
Zone members 16,000 zone members per physical
fabric (includes all VSANs).
20,000 zone members per Physical
Fabric (includes all VSANs).
Zones 8000 zones per switch (includes all
VSANs).
8000 zones per switch (includes all
VSANs).
Zone sets 500 zone sets per switch (includes all
VSANs).
1000 zone sets per switch (includes all
VSANs).
Supported hops for all major storage,
server, and HBA vendors
7 hops (diameter of the SAN fabric). 12 hops.
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