Support for Serial High Availability Appliances
In Release 2.4, Oracle has enhanced its HA support by expanding it to support the Serial Inline HA Topology. This allows a simple Fail-to-Wire based serial HA option that simplifies deployments for end users. The Serial Inline HA feature also includes supporting additional Fail-to-Block groups or nonHA traffic on the control segment. Figure 8 (below) shows an example of how Serial Inline HA could be configured.
Oracle Serial HA
Serial Inline HA can be enabled in the Oracle SD-WAN Edge configuration file using the Oracle SD-WAN Edge
Configuration Editor GUI (shown in Figure 9 below). For more information on the Oracle SD-WAN Edge Configuration Editor, please see the APN Configuration Editor User's Guide.
The Serial Inline HA feature may also be set in the Oracle SD-WAN Edge configuration file manually, using the use_ serial_ha parameter. The user would configure the HA in the standard method but select the option for “use_serial_ha.” This feature can also be added to the configuration manually. A sample of the configuration setting is shown below:
Define site name=NCN1
{
add appliance name=ncn1
{
...
} add ha_appliance name=ncn1
- HA; { add ha_service set properties primary_appliance_name=ncn1
HA secondary_appliance_name=ncn1 primary_reclaim=false
use_serial_ha=true; add interface_group
{
set interface_properties viprimary_ip_addr=10.40.10.13 rtual_interface_name=VLAN1
secondary_ip_addr=10.40.10.14; }
}
}
For more information on the Oracle SD-WAN Edge configuration file, please see the APN Configuration Reference.
Design Considerations:
- Keepalives must be configured on a Fail-To-Block (FTB) interface group
- FTB interface can be directly connected between appliances
- Supports untrusted interface groups for conduit traffic
- Link health not used for HA priority
- Must have a Fail to Wire bypass group defined for conduit traffic
- Standby appliance allows packet to pass through
- Spanning tree must be considered when deploying this topology
- Sends HA protocol across the FTB HA interface group only
- Configuration updates traverse the FTB HA interface group from active to backup appliance