IP address assignment – ThinkAgile CP internal networks

This section covers the guidelines when assigning IP addresses to ThinkAgile CP internal networks.

Take into account the following when filling out the worksheet table for ThinkAgile CP internal networks

• Hypervisor VLAN

  This VLAN is used for internal communication within the ThinkAgile CP stack and not customer accessible. The value assigned to this VLAN is used in the ThinkAgile CP Deployment Guide. We recommend using the default value 4091 for this VLAN. Nevertheless, its value can be configured during installation using the variable named hyp_vlan.

• Hypervisor IP Range

  This range is used to assign IP addresses to the operating systems of the compute and storage controllers. The network associated to this IP range must be unique and routable from the customer data center network. Under special circumstances, this range is used to assign IP addresses to the outside interface of the NFV VMs or application VMs as long as the corresponding vNICs are configured in VLAN mode and assigned to the default VLAN.

• Hypervisor IP Range Gateway

  The gateway for all hosts in the hypervisor IP range is the Hypervisor VLAN Virtual IP (hyp_vlan_vip).

• Hardware management network VLAN

  This VLAN is internal to ThinkAgile CP and not customer accessible.

• Hardware management network VLAN

  We recommend using the default value 4092 for this VLAN. Nevertheless, its value can be configured during installation using the variable named bmc_vlan.

• Hardware management network IP Range

  This IP range is used for internal communication within the ThinkAgile CP stack and not customer accessible. It is used to assign addresses to the BMC devices within the compute and storage controllers.

• Hardware management network IP Range Gateway

  The gateway for all hosts in this IP range is the hardware management network VLAN IP address (bmc_vlan_ip).

• MLAG Peer Link

  We recommend using the default values 100.64.253.1 and 100.64.253 for the MLAG Peer Link endpoint addresses. These IP addresses belong to the block 100.64.0.0/10, which was assigned by Internet Assigned Numbers Authority (IANA) to be used as shared address space range, typically for carried grade NAT. In the context of ThinkAgile CP, these IP addresses are private, and the MLAG network is completely isolated from the customer data center network. Although ThinkAgile CP uses these values by default, the user has the flexibility to modify them during installation using the variables named mlag_vlan_ip1, mlag_vlan_ip2 and mlag_vlan_prefix.

• MLAG VLAN

  We recommend using the default value 4093 for this VLAN. Nevertheless, its value can be configured during installation using the variable named mlag_vlan.

• MLAG VLAN Prefix

  We recommend using the default value 30 for this prefix. Nevertheless, its value can be configured during installation using the variable named mlag_vlan_prefix.

• Variable names

  Variable names are shown in italics in worksheet tables. Those names correspond to parameters that you need to specify when deploying the ThinkAgile CP solution (using the ThinkAgile CP Deployment Guide).

• Network masks

  In worksheet tables, network masks must be entered in the Netmask or Prefix column using dotted decimal format X.X.X.X (for example: 10.1.1.2).

• Network prefixes

  In worksheet tables, network prefixes must be entered in the Netmask or Prefix column in prefix format /<number of bits> (for example: /23).

The following are IP address assignment considerations for ThinkAgile CP internal networks:

Table 1. IP address assignment – ThinkAgile CP internal networks

Name	IP Range	Netmask or Prefix	Gateway	VRRP Virtual IP (VIP)	VLAN ID (Tag)
Hypervisor VLAN	hyp_vlan_ip	hyp_vlan_prefix	N/A	hyp_vlan_vip	hyp_vlan Default: 4091 (optional)
Hypervisor IP Range	hyp_range_subnet hyp_range_start hyp_range_end	hyp_range_netmask	hyp_vlan_vip	N/A
Hardware management network VLAN	bcm_vlan_ip	bmc_vlan_prefix	N/A	N/A	bmc_vlan Default: 4092 (optional)
Hardware management network IP Range	bmc_range_subnet bmc_range_start bmc_range_end	bmc_range_netmask	bmc_vlan_ip
MLAG Peer Link	mlag_vlan_ip1 mlag_vlan_ip2 Default: 100.64.253.1 and 100.64.253.2 (optional)	mlag_vlan_prefix Default: 30 (optional)	N/A	N/A	mlag_vlan Default: 4093 (optional)