HP 2600 - Manual (Page 183)

Port Status and Basic Configuration
Jumbo Packets on the Series 2800 Switches
Web: Viewing Port Status and Configuring Port
Parameters
In the web browser interface:
1. Click on the Configuration tab.
2. Click on Port Configuration.
3. Select the ports you want to modify and click on Modify Selected Ports.
4. After you make the desired changes, click on Apply Settings.
Note that the web browser interface displays an existing port trunk group.
However, to configure a port trunk group, you must use the CLI or the menu
interface. For more on this topic, see Chapter 12, “Port Trunking” .
Jumbo Packets on the Series 2800
Switches
This section applies only to the HP ProCurve Series 2800 switches.
Feature Default Menu CLI Web
display VLAN jumbo status n/a — 10-20 —
configure jumbo VLANs Disabled — 10-22 —
The Maximum Transmission Unit (MTU) is the maximum size IP packet the
switch can receive for Layer 2 packets inbound on a port. The switch drops
any inbound packets larger than the MTU allowed on the port. On ports
operating at 10 Mbps or 100 Mbps, the MTU is fixed at 1522 bytes. However,
ports operating at 1 Gbps or 10 Gbps speeds accept forward packets of up to
9220 bytes (including four bytes for a VLAN tag) when configured for jumbo
traffic. In the 2800 switches you can enable inbound jumbo packets on a per-
VLAN basis. That is, on a VLAN configured for jumbo traffic, all ports belong­
ing to that VLAN and operating at 1 Gbps or 10 Gbps allow inbound jumbo
packets of up to 9220 bytes. (Regardless of the mode configured on a given
jumbo-enabled port, if the port is operating at only 10 Mbps or 100 Mbps, only
packets that do not exceed 1522 bytes are allowed inbound on that port.)
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