Biggest frame an interface can carry. The physical fabric needs at least 1600 bytes for NSX overlay traffic, with 1700 recommended and 9000 preferred where jumbo frames run end to end.
Also called maximum transmission unit.
In the Ultra Transcenders books
Each book explains MTU in context, with comparison tables and the common traps.
Terms in this definition
- Physical
Describes the concrete, real-world parts that put a logical architecture into effect.
- LEAST
Pass up to 254 expressions to this T-SQL function and it hands back whichever is smallest. Both Fabric Warehouse and SQL analytics endpoints support it.
- NSX
Software that handles networking and security across VCF, covering firewalling, load balancing, NAT, VPCs, overlay segments and Tier-0/1 gateways.
- WHERE
Limits a SELECT, UPDATE or DELETE to just the rows meeting a condition. Omit it, and the statement hits every row.
Related terms
- intent
A rule in VCF Operations for networks stating how the network ought to behave (say, MTU consistency, reachability or segmentation), regularly tested against a model of everything the network could do. Custom or system-supplied.
- uplink profile
NSX settings applied to Edge and host transport nodes covering MTU, transport VLAN, teaming policy and which uplinks are active or standby.