
Issue 11
© Solarflare Communications 2014
51
Solarflare Server Adapter
User Guide
Configuring Jumbo Frames
Solarflare adapters support frame sizes from 1500 bytes to 9216 bytes. For example, to set a new
frame size (MTU) of 9000 bytes, enter the following command:
ifconfig <ethX> mtu 9000
To make the changes permanent, edit the network configuration file for <
ethX
>; for example,
/etc/sysconfig/network-scripts/ifcfg-eth1
and append the following configuration
directive, which specifies the size of the frame in bytes:
MTU=9000
Standby and Power Management
Solarflare adapters support Wake on LAN and Wake on Magic Packet setting on Linux. You need to
ensure that Wake on LAN has been enabled on the BIOS correctly and your adapter has auxiliary
power via a separate cable before configuring Wake on LAN features.
In SUSE Linux Enterprise Server, you can use the YaST WOL module to configure Wake on LAN or you
can use the
ethtool wol g
setting.
In Red Hat Enterprise Linux you can use the
ethtool wol g
setting.
3.12 Setting Up VLANs
VLANs offer a method of dividing one physical network into multiple broadcast domains. In
enterprise networks, these broadcast domains usually match with IP subnet boundaries, so that
each subnet has its own VLAN. The advantages of VLANs include:
• Performance
• Ease of management
• Security
• Trunks
• You don't have to configure any hardware device, when physically moving your server to
another location.
To set up VLANs, consult the following documentation:
• To configure VLANs on SUSE Linux Enterprise Server, see:
http://www.novell.com/support/viewContent.do?externalId=3864609
• To configure tagged VLAN traffic only on Red Hat Enterprise Linux, see:
http://kbase.redhat.com/faq/docs/DOC-8062
• To configure mixed VLAN tagged and untagged traffic on Red Hat Enterprise Linux, see: