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## Oracle Database Appliance Networks

FAQs on Oracle Database Appliance networks.

Can a mix of 10 Gb Base-T and 10 Gb SFP+ network adapters be used on Oracle Database Appliance X8-2-HA?

Yes. For the detailed configuration options and instructions, refer to the chapter Managing Networks in the Oracle Database Appliance Deployment and User’s Guide for your hardware model.

What is the odacli command in this release to set the Broadcom NIC speed to either 10Gb or 25Gb?

For 10Gb or dual-mode transceivers for the Oracle Dual Port 25 Gb Ethernet Adapter Whitney+ network controller, you can use the `odacli configure-firstnet -o` command to set the speed of the network card manually.

What are the supported network cables for Oracle Dual Port 25 Gb Ethernet Adapter SFP Ports?

The adapter supports cables and transceivers that align to the SFP28 and SFP+ MSAs. These include Direct Attach Copper (DAC) cables for shorter lengths as well as discrete transceivers and fiber cables for longer lengths. For the details, refer to the section Ethernet Transceivers and Cables Supported in the Oracle Dual Port 25 Gb Ethernet Adapter Product Notes.

For Oracle Database Appliance X8-2-HA systems, what is the order in which to install additional network cards?

For Oracle Database Appliance X8-2-HA and X8-2M, the additional network cards can be installed in the order of slot 2 and 10. For Oracle Database Appliance X8-2S, it might be in the order of slot 8 and 10.

Can the Net0 (on-board 1Gbps port) in Oracle Database Appliance X7-2 be used?

Yes, it can be configured using ODACLI or the Browser User interface (BUI).

How do I change from SFP28 Copper to SPF28 Fiber in Oracle Database Appliance X7-2?

Shut down the server, install the appropriate transceivers, swap cables, and restart the server. There are no changes necessary in the host operating system.

How can I disable DCB (Data Center Bridging) and LLDP (Link Layer Discovery Protocol) on the Oracle Dual Port 25 Gb Ethernet Adapter?

In the BIOS setup, select Oracle Dual 25Gb Ethernet Adapter in the Advanced tab. In the Device Configuration menu, disable LLDP Nearest Bridge and DCB Protocol.

Does Oracle Database Appliance support IPv6?

Currently IPv6 is not supported.

Does Oracle Database Appliance support Link Aggregation Control Protocol (LACP) or trunk mode?

Starting with Oracle Database Appliance release 19.18, you can configure LACP when you run the `odacli configure-firstnet` while deploying the appliance. You can also use the `-o` option with the `odacli configure-firstnet` command to enable or disable LACP on a bonding interface after deployment.

Can I create network bonding across two physically separated NICs?

Yes. Starting with Oracle Database Appliance release 19.15, Oracle Database Appliance X9-2 supports creation of network bonding across two physically separated NICs is supported.

Can I configure Oracle Database Appliance to break the network bonding?

Breaking network bonding feature is available only for Oracle Database Appliance X7-2.

Are there any issues when configuring the same subnet on two different bonding interfaces?

There is no assurance to which interface will be used to transmit traffic. The wrong interface may be used or one of IP addresses may become non-reachable.

How can I resolve the Multi-Homed Routing issue?

Refer to the Oracle blog Advanced Routing for Multi-Homed Hosts at https://blogs.oracle.com/networking/advance-routing-for-multi-homed-hosts.

Is bonding or HAIP used for private interconnect on bare metal systems?

Starting with Oracle Database Appliance release 18.7, the bonding interface is used instead of the HAIP on two network interfaces.

How can I disable Network Manager in Oracle Database Appliance release 19.x?

By default, the "NM_CONTROLLED=No” is set on the `ifcfg` files provided by Oracle Database Appliance. If you have networking issues, contact Oracle Support to get instructions on how to address your issue.

What is the default firewall on Oracle Database Appliance releases 18.x and 19.x?

The iptables is default for Oracle Linux 6 and firewalld is the default for Oracle Linux 7. By default, both iptables and firewalld are not running on Oracle Database Appliance. When the iptables or firewalld need to run, ensure that your rules do not affect the cluster interconnect interfaces, protocols and network address space. If iptables are already running in pre-19.x systems, refer to the My Oracle Support note Oracle Linux: Migrate OL6 iptables(8) Rules To OL7 firewalld(1) (Doc ID 2518939.1) or Oracle Linux 7: How to Replace firewalld with iptables (Doc ID 2620399.1).

How do I change the public IP or network for an existing Oracle Database Appliance after deployment?

Refer to the My Oracle Support note How To Change the Public IP / Network For an Existing ODA HA After Deployment (DCS) (Doc ID 2638458.1) and How To Change the Public IP / Network For an Existing ODA M/L After Deployment (DCS) (Doc ID 2638331.1).

How to change the DNS and NTP settings after deployment?

Refer to the My Oracle Support note How To Change DNS and NTP Settings On an ODA Post-install for DCS Stack 18.3 to 18.6 (Doc ID 2680182.1) and ODA:Changing NTP server Does Not Change Output Of odacli describe-system (Doc ID 2675635.1).

How can I update the NTP server information on Oracle Database Appliance registry after deployment?

Refer to the My Oracle Support note ODA:Changing NTP server Does Not Change Output Of odacli describe-system (Doc ID 2675635.1).

Which SNMP version is supported for Oracle ASR on Oracle Database Appliance?

The SNMP v3 is supported on the host.

Is NTP supported in Oracle Database Appliance release 19.x?

By default, NTP is not running in Oracle Linux 7. To start NTP, refer to the My Oracle Support note Oracle Linux: NTP Does Not Start Automatically After Server Reboot on OL7 (Doc ID 2422378.1).

Is enabling the FTP daemon supported on Oracle Database Appliance?

It is not recommended to enable the FTP due to security reasons. If you enable the FTP daemon for some reason, you must ensure that security is considered and that installation and configuration is done properly.

How can I use Oracle Database Appliance as an NFS server?

Refer to the My Oracle Support Note ODA (Oracle Database Appliance): How To export ACFS (cloudfs) using HANFS (Doc ID 1934030.1) or ODA (Oracle Database Appliance): How to export ACFS using Samba-CIFS to MS Windows (Doc ID 1634154.1).

Can I change the VLAN ID of the default public VLAN configured by odacli configure-firstnet?

It is not possible to change the VLAN ID without redeploying the appliance.

How do I use native VLAN?

To use the native VLAN, do not choose the `VLAN` feature in the `odacli configure-firstnet` command.

Is the policy-based routing supported in Oracle Database Appliance?

The policy-based routing could be configured on non-NM_CONTROLLED interfaces. When setting your policy, be aware that there are reserved subnets for the HAIP, HAVIP, private interconnect, and 169.254.0.0 on Oracle Database Appliance. When patching your appliance to the latest release, you must set these settings again.

Is the VRF (Virtual Routing and Forwarding) supported in Oracle Database Appliance?

The layer 2 tagged VLAN is supported. Regarding VRF in layer 3 settings, you must set these settings again when patching your appliance to the latest release.

How do I resolve the subnet conflict with Oracle Database Appliance private network 192.168.16/17.xxx?

The 192.168.16.0/24 and 192.168.17.0/24 subnet are reserved for private network communications.

Is it possible to separate the networks used by the two databases?

Starting with Oracle Database Appliance release 19.7, a network can be attached or detached with the database with the `odacli modify-database` command.

Can I modify the network script under `/etc/sysconfig/network-scripts` manually?

It is not recommended to modify the `ifcfg-*` network script file manually, because these changes may get lost when you upgrade to a new Oracle Database Appliance release. If you modify these files, then you may need to reconfigure these settings when you patch the appliance to the latest release.

Parent topic: Oracle Database Appliance Frequently Asked Questions