Region properties
Every region maintains a set of properties that are shared by all intents within that region. Region properties lists these properties.
| Property | Description |
|---|---|
| Name | The text string that identifies this fabric in the UI. |
| Description | The text string that is displayed in the Additional information panel for a region. |
| Location | The physical location represented by the region. |
| System IP Pool | Pool name: set as "default" and cannot be changed. |
| IP Type: set as "IPv4" and cannot be changed. | |
|
IP Blocks: Contains one or more CIDR blocks representing IP addresses that can be assigned to the management interfaces of devices managed by the system. Enter these blocks using CIDR notation; for example, 192.0.2.0/24. If you need more IP addresses for devices in your fabrics than the current CIDR blocks support, you can modify the region to add more CIDR blocks to the System IP pool. |
|
| Inter Switch Link IP Pool | Pool name: set as "default" and cannot be changed. |
| IP Type: set as "IPv4" and cannot be changed. | |
| IP Blocks: Contains one or more CIDR blocks
representing IP addresses that can be assigned to inter-switch links
between devices in real (not Digital Sandbox) fabric intents throughout
this region. Enter these blocks using CIDR notation. For example:
192.0.2.0/24. Note: Each link within a fabric
intent requires two IP addresses from this block; one for each
endpoint. From the set of links that are possible with the IP addresses in the specified CIDR block, two are reserved for use by the system to represent the network IP address and the broadcast address. These are unavailable for inter-switch links. For example, a CIDR block ending in /26 that can support up to 32 links actually supports only up to 30 links within the fabric intents in this region. If you create a fabric intent that requires more links than are available with the current pool, fabric generation fails. The event log for the fabric intent indicates that there are insufficient IP addresses for the required links, and shows the number of addresses required versus the number available. If you need more IP addresses available to your fabrics than the current CIDR blocks support, you can modify the region to add more CIDR blocks and thereby support additional links. |
|
| Out of Band Management IP Pool | Pool name: set as "default" and cannot be changed. |
| IP Type: set as "IPv4" and cannot be changed. | |
| IP Blocks: Contains a CIDR block representing
the IP addresses that will be assigned to the management interfaces of
devices. Enter these blocks using CIDR notation; for example:
192.0.2.0/24. Note: From the set of links that
are possible with the IP addresses in the specified CIDR block, two
are reserved for use by the system to represent the network IP
address and the broadcast address. These are unavailable for the
out-of-band management IP pool. If you need more links in your fabrics than the CIDR blocks you specified here support, you can modify the region to add more CIDR blocks to this pool. |
|
| BGP ASN Numbers | The Fabric Services System can maintain a pool of Autonomous System
Numbers (ASNs) consisting of multiple blocks of numbers. ASNs are used to uniquely identify a network with a unique routing policy. The ASN must be unique so that IP address blocks appear to originate from a unique location to which BGP can determine a route. The single pool of numbers is assigned the label "default", and this cannot be altered.Within the pool, you can define one or more blocks of contiguous ASNs by providing a start and end number for each block. ASNs can be any number from 0 to 4294967295. Blocks of numbers within the same pool cannot contain overlapping values. As one block of ASNs is exhausted, the system begins assigning values from whichever remaining, unexhausted block contains the highest available values. Even if some numbers from the first block become available, the system continues allocating numbers from this second block until the second block is exhausted. Then the system again looks for the block with the highest available values from which to allocate new ASNs, and so on. Start: the lowest permissible value in a range of a single block of ASNs. |
| End: the highest permissible value within a block of ASNs. | |
| Digital Sandbox DHCP Configuration | Digital Sandbox DHCP CIDR: the CIDR block use to assign IP addresses
for the SR Linux container nodes within the Fabric Services System
Digital Sandbox. You can create both IPv4 and IPv6 CIDR blocks for use by Digital Sandbox fabric intents. For more information about the Digital Sandbox, see Digital Sandbox. |
| Route Target | Global Index: an underlay service parameter set when workloads are created, which ensures that services created as part of a workload are unique within a region and across multiple regions. |
| EVPN Profile | Control Plane: the control plane type to use
throughout the region. Supported values are:
Default value: None |
| Protocol authentication | BGP: Enabled or Disabled Enabling BGP protocol authentication causes the Fabric Services System to create a unique MD5 authentication key. This encrypted key is required to authenticate communication between eBGP peers. No user action is required to create the authentication key or to incorporate eBGP authentication requiring this key into subsequent node configurations. These actions are handled internally by the system. |
| EVI | The range of the EVI pool: Start: the lowest value in the range of EVI values End: the highest value in the range of EVI values |
| VNI | The range of the VNI pool: Start: the lowest value in the range of VNI values End: the highest value in the range of VNI values |