- Not able to set network interface MTU above 1500 for KVM guests.
Getting following error when setting MTU for KVM guests.
# ifconfig eth0 mtu 8963 SIOCSIFMTU: Invalid argument
The network speed / performance of a RHEL 4 or 5 VM using kvm/libvirt is lower than expected.
A kickstart of a RHEL 4.6 guest on RHEL 6.0 KVM suffers from very very slow network performance during the Anaconda install. The same guest works fine with RHEL 5 and RHEL 6.
- Red Hat Enterprise Linux (RHEL) 5 or 6 kvm/libvirt host
- Red Hat Enterprise Linux 4 VM
- Red Hat Enterprise Linux 5 (prior to update 4) VM
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