XEN Virtualization Set The MTU For xenbr0 Interface

Posted on in Categories CentOS, Debian Linux, fedora linux, Gentoo Linux, High performance computing, kernel, Linux, Linux Virtualization, Networking, RedHat/Fedora Linux, xen last updated December 31, 2008

I’ve already written about setting the MTU (Maximum Transmission Unit) under Linux including Jumbo frames (FreeBSD specific MTU information is here).

With this quick tip you can increase MTU size to get a better networking performance.

Configure Static Routes In Debian or Red Hat Enterprise Linux

Posted on in Categories CentOS, Debian Linux, Linux, Networking, RedHat/Fedora Linux, Suse Linux, Ubuntu Linux last updated January 22, 2010

Static routes improves overall performance of your network (especially bandwidth saving). They are also useful in stub networks (i.e. there is only one link to the network). For example, each LAN (located at different offices) is connected to HQ IDC (Internet data center) using single T1/LL/Wan links.

For example under Red Hat/Fedora Linux you can add static router for eth0 network interface by editing /etc/sysconfig/network-scripts/route-eth0 file. Under Debian Linux add static route by editing /etc/network/interface file.