Port Traffic Controls

Jumbo Frames

Jumbo Frames

Feature

Default

Menu

CLI

Web

display VLAN jumbo status

n/a

—

13-33

—

configure jumbo VLANs

Disabled

—

13-35

—

 

 

 

 

 

The Maximum Transmission Unit (MTU) is the maximum size IP frame the switch can receive for Layer 2 frames inbound on a port. The switch drops any inbound frames larger than the MTU allowed on the port. Ports operating at a minimum of 10 Mbps on the ProCurve 3500 switches and 1 Gbps on the other switches covered in this guide can accept forward frames of up to 9220 bytes (including four bytes for a VLAN tag) when configured for jumbo traffic. You can enable inbound jumbo frames on a per-VLAN basis. That is, on a VLAN configured for jumbo traffic, all ports belonging to that VLAN and operating at a minimum of 10 Mbps on the ProCurve 3500 switches and 1 Gbps on the other switches covered in this guide allow inbound jumbo frames of up to 9220 bytes.

Switch Model

Minimum Speed for Jumbo

 

Traffic

 

 

3500

10 Mbps

All others in this guide

1 Gbps

 

 

Terminology

Jumbo Frame: An IP frame exceeding 1522 bytes in size. The maximum Jumbo frame size is 9220 bytes. (This size includes 4 bytes for the VLAN tag.)

Jumbo VLAN: A VLAN configured to allow inbound jumbo traffic. All ports belonging to a jumbo and operating at 1 Gbps or higher can receive jumbo frames from external devices. If the switch is in a meshed domain, then all meshed ports (operating at 1 Gbps or higher) on the switch will accept jumbo traffic from other devices in the mesh.

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