Port Status and Basic Configuration

Jumbo Packets on the Series 2800 Switches

traffic from devices on either VLAN. For a method to allow only some ports in a VLAN to receive jumbo traffic, refer to “Operating Notes for Jumbo Traffic-Handling” on page 10-22.

Configuring Jumbo Packet Operation

Command

Page

show vlans

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show vlans ports < port-list >

10-21

show vlans < vid >

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jumbo

10-22

 

 

Overview

1.Determine the VLAN membership of the ports or trunks through which you want the switch to accept inbound jumbo traffic. For operation with GVRP enabled, refer to the GVRP topic under “Operating Rules”, above.

2.Ensure that the ports through which you want the switch to receive jumbo packets are operating at least at gigabit speed. (Check the Mode field in the output for the show interfaces brief < port-list > command.)

3.Use the jumbo command to enable jumbo packets on one or more VLANs statically configured in the switch. (All ports belonging to a jumbo- enabled VLAN can receive jumbo packets.

4.Execute write memory to save your configuration changes to the startup­ config file.

10-19