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Configuration Guide - Virtualization
CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of virtualization, including stack and VS.

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VS Resource Allocation

VS Resource Allocation

The PS administrator can allocate resources on a PS to VSs. Resources allocated to a VS are exclusively used by the VS. A VS administrator can check and manage only local VS resources after logging in to the VS.

Allocatable resources on the PS include physical and logical resources.

Physical Resources

Only physical Ethernet interfaces on interface cards can be allocated to VSs. Physical interfaces can be allocated in two modes:
  • Port mode: All interfaces on an interface card can be allocated to any VS, as shown in Figure 2-4.

    Figure 2-4 Port mode
  • Group mode: All interfaces in the same group must be allocated to the same VS, as shown in Figure 2-5.

    Figure 2-5 Group mode
Interface resource allocation has the following characteristics:
  • Both VSs in port mode and VSs in group mode can be created on a PS.

  • By default, all interfaces on an interface card belong to the Admin-VS.

  • The PS administrator can assign interfaces in the Admin-VS to VSs, but an interface can be allocated to only one VS.

  • Interfaces on different interface cards can be allocated to the same VS.

  • After an interface is allocated to a VS, original configurations on the interface are deleted.

  • A VS administrator can check and configure only interfaces in the local VS.

Logical Resources

Table 2-1 lists logical resources that can be allocated to VSs.
Table 2-1 Logical resources and specifications of a VS

Resource

Default VS Specifications

Group Mode Port Mode

IPv4 unicast routing entries

60000

60000

IPv4 multicast routing entries

1000

1000

IPv6 unicast routing entries

16000

16000

IPv6 multicast routing entries

100

The CE12800E does not support this resource.

100

The CE12800E does not support this resource.

VLANs

CE12800E: 4094

CE12800: 4063

200

VPN instances

CE12800E: 16000

CE12800: 4063 when the card interoperability mode is non-enhanced mode or 16384 when the card interoperability mode is enhanced mode

256

MPLS

Supported

The CE12800E does not support MPLS.

Not supported

TRILL

Supported

The CE12800E does not support TRILL.

Not supported

Multicast

Supported

Not supported

Weight of the maximum CPU usage

5

5

The CPU usage weight of the Admin-VS is 10.

Maximum memory usage

100

100

Maximum percentage of the occupied storage space (disk ratio-threshold)

100

100

Logical resource allocation has the following characteristics:
  • A new VS has the default logical resource specifications. The PS administrator can change the specifications in the VS.

  • Logical resources of two VSs can have the same name. For example, VS1 and VS2 can both have a VLAN named VLAN 10.

  • VSs in port mode share service specifications configured on a PS. For example, a PS supports a maximum of service 4063 VLANs, and interfaces are assigned to VS1 and VS2 in port mode. If VS1 and the Admin-VS are allocated a total of 3000 VLANs (the Admin-VS is in port mode), VS2 can only use the remaining 1063 VLANs.

  • Service specifications are exclusive to VSs in group mode. For example, if a PS supports a maximum of 4063 VLANs, and interfaces are assigned to VS1 and VS2 in group mode, VS1 and VS2 each can have a maximum of 4063 VLANs. Note that resource allocation is restricted by the system specifications. For example, if a PS supports a maximum of 28441 VLANs, and seven VSs in group mode occupy a total of 28441 (7 x 4063) VLANs, the remaining VLAN resources are insufficient for the other VSs in group mode.

    To view the system resource specifications and VS resource specifications, run the display virtual-system resource command.

  • The maximum CPU usage of a VS is calculated based on the weight using the following formula:

    (Weight of the VS/Total weight of all VSs) * 100%

  • A VS administrator can check and manage only logical resources in the local VS.

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Updated: 2019-03-21

Document ID: EDOC1000166610

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