Lenovo Flex System Fabric CN4093, Инструкция по применению

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© Copyright Lenovo 2017 Chapter 16: VMready
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Bandwidth Policies vs. Bandwidth Shaping
VM Profile Bandwidth Shaping differs from VM Policy Bandwidth Control.
VM Profile Bandwidth Shaping (see “VM Profiles” on page 282 ) is configured per
VM group and is enforced on the server by a virtual switch in the hypervisor.
Shaping is unidirectional and limits traffic transmitted from the virtual switch to
the CN4093. Shaping is performed prior to transmit VM Policy Bandwidth
Control. If the egress traffic for a virtual switch port group exceeds shaping
parameters, the traffic is dropped by the virtual switch in the hypervisor. Shaping
uses server CPU resources, but prevents extra traffic from consuming bandwidth
between the server and the CN4093.
VM Policy Bandwidth Control is configured per VE, and can be set independently
for transmit and receive traffic. Bandwidth policies are enforced by the CN4093.
VE traffic that exceeds configured levels is dropped by the switch upon ingress (for
txrate
) or before egress (for
rxrate
). Setting
txrate
uses ACL resources on the
switch.
Bandwidth shaping and bandwidth policies can be used separately or in concert.
VMready Information Displays
The CN4093 can be used to display a variety of VMready information.
Note:
Some displays depict information collected from scans of a VMware vCenter
and may not be available without a valid vCenter. If a vCenter is assigned (see
“Assigning a vCenter” on page 288 ), scan information might not be available for up
to two minutes after the switch boots or when VMready is first enabled. Also, any
major changes made through the vCenter may take up to two minutes to be
reflected on the switch unless you force an immediate vCenter scan (see “vCenter
Scans” on page 289 ).
Local VE Information
A concise list of local VEs and pre ‐ provisioned VEs is available with the following
ISCLI privileged EXEC command:
Note:
The Index numbers shown in the VE information displays can be used to
specify a particular VE in configuration commands.
CN 4093# show virt vm
Virtual MAC addresses information:
IP Address VMAC Address Index Port VM Group (Profile) Check status
---------- ----------------- ----- ------- ------------------ ------------
0.0.0.0 00:00:00:00:11:11 0 UNKNOWN 100
VMReady ports: INTA1-INTC14
Number of entries: 1
0.0.0.0 indicates IP address not yet available
EVB Virtual Station Interface Information:
Total number of VM Association entries : 0