In case of VMware I see it setting to 200 Mbps for guest traffic but in case of Xen it is setting to ~25 Mbps
uuid ( RO) : dbc7e0fc-1e2b-a331-788a-ded5aa2b7a6e vm-uuid ( RO): 442056e0-0bff-5977-93fc-a986993cfe87 vm-name-label ( RO): i-2-14-VM allowed-operations (SRO): attach current-operations (SRO): device ( RO): 0 MAC ( RO): 02:00:7e:09:00:0c MAC-autogenerated ( RO): false MTU ( RO): 1500 currently-attached ( RO): true qos_algorithm_type ( RW): ratelimit qos_algorithm_params (MRW): kbps: 25600 qos_supported_algorithms (SRO): other-config (MRW): nicira-iface-id: 49fda265-88b7-46d3-94bd-69ec50a3f2c5; nicira-vm-id: 442056e0-0bff-5977-93fc-a986993cfe87 network-uuid ( RO): 60179f2f-3835-6c83-af18-3d6bc6a50f7b network-name-label ( RO): VLAN-4fca9336-d655-bb55-5c4a-42f56350f194-707 io_read_kbs ( RO): <expensive field> io_write_kbs ( RO): <expensive field> locking-mode ( RW): network_default ipv4-allowed (SRW): ipv6-allowed (SRW): Thanks, SWAMY From: Venkata SwamyBabu Budumuru Sent: Wednesday, September 12, 2012 11:26 AM To: cloudstack-users@incubator.apache.org Subject: qos_algorithm_params (MRW): kbps: 25600 for Guest VMs? Hi, Any reason why we by default limit network rate to 25600 kbps (~25Mbps) on guest VMs? Which parameter controls this setting? This is going to even control guest to guest traffic as well. Why do we do this by default? It makes sense to rate limit public but, unsure about guest traffic. I see the following global params but they are meant to set this value to 200 Mbps | Network | DEFAULT | management-server | network.throttling.rate | 200 | Default data transfer rate in megabits per second allowed in network. | | Network | DEFAULT | management-server | vm.network.throttling.rate | 200 | Default data transfer rate in megabits per second allowed in User vm's default network. | +----------+----------+-------------------------+----------------------------+-------+-----------------------------------------------------------------------------------------+