Vm Policy Bandwidth Control; Vm Policy Bandwidth Control Commands - Lenovo RackSwitch G8264CS Application Manual

VM Policy Bandwidth Control

VM Policy Bandwidth Control Commands

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G8264CS Application Guide for ENOS 8.4
In a virtualized environment where VEs can migrate between hypervisors and
thus move among different ports on the switch, traffic bandwidth policies must be
attached to VEs, rather than to a specific switch port.
VM Policy Bandwidth Control allows the administrator to specify the amount of
data the switch will permit to flow from a particular VE, without defining a
complicated matrix of ACLs or VMAPs for all port combinations where a VE may
appear.
VM Policy Bandwidth Control can be configured using the following configuration
commands:
RS 8264CS(config)# virt vmpolicy vmbwidth <VM MAC>|<index>|<UUID>| <IPv4
address>|<name>?
txrate <committed rate> <burst> [<ACL number>] (Set the VM transmit bandwidth –
rxrate <committed rate> <burst>
bwctrl
Bandwidth allocation can be defined for transmit (TX) traffic or receive (RX) traffic.
Because bandwidth allocation is specified from the perspective of the VE, the
switch command for TX Rate Control (txrate) sets the data rate to be sent from
the VM to the switch, and the RX rate sets the data rate to be received by the VM
from the switch.
The committed rate is specified in multiples of 64 kbps, from 64 to 40,000,000. The
maximum burst rate is specified as 32, 64, 128, 256, 1024, 2048, or 4096 kb. If both
the committed rate and burst are set to 0, bandwidth control will be disabled.
When txrate is specified, the switch automatically selects an available ACL for
internal use with bandwidth control. Optionally, if automatic ACL selection is not
desired, a specific ACL may be selected. If there are no unassigned ACLs available,
txrate cannot be configured.
ingress for switch)
(Set the VM receive bandwidth – egress
for switch)
(Enable bandwidth control)