I guess you mean IP alias instead of "virtual IP address".
It depends in which state the cluster node is and if RGs are up. Usually production addresses are configured as alias when RGs are started. Else a cluster node has it's boot addresses configured which are usually permanent addresses, no aliases.
To get a glimpse at current active IP configuration, use:
Not sure if there is an easier way to distinguish what is an alias and what not, you can check with ifconfig -a, which adapter has more than 1 IP configured, example:
Ok, en5 has 2 addresses; let's check the ODM:
As you can see the address 10.10.29.111 showing up with ifconfig is not in the ODM. So this is the alias which is only configured on this cluster node, when the related RG (Resource Group) is activated.
Last edited by zaxxon; 04-22-2009 at 02:58 AM..
Reason: Added Info
Hi,
I bound a virtual IP to a network card on my E450 server and I am getting this error when I reboot the server, saying, " retrying host, RPC time out. I had to break this sequence and allow other services to load. Of course they didn't load properly. Please how can I sort this out? I do need... (8 Replies)
How do I get a pointer to any 32 bit address on my hard drive, in which I then could read that memory or write to that memory address?
And, while the subject is on, how do get a 32 bit pointer in RAM also, in which I can do the same?
I'm using C and Objective-C with gcc on an iBook G4.
A... (9 Replies)
We currently have a Solaris Wks that is being used as an "ftp server" and
it routinely accepts data each night that if ftp'd to it from off site. In the event that this "ftp server" should fail (crash, die, whatever) we would like to have an automatic fail over to a second Solaris Wks as the "ftp... (2 Replies)
Hi, I try to understand how to configure my ethernet network in a hacmp cluster.
I have 2 nodes, 3 lan port on each node, and 1 service ip to cluster.
I don't have any serial o iscsi heartbeat.
Do you suggest me a possibile ip address configuration? I've many error whene I verify it from hacmp... (3 Replies)
Hello,
I would like to know if anyone has faced this problem. Whenever there is a duplicate IP address, HACMP goes down infact HACMP ( PowerHA ) takes the whole system down.
Does anyone know how to solve this problem ? (3 Replies)
Hi All
I am having a solaris 10 virtual machine on vista (using vmware 7) laptop.
Now i want to access virtual machine from vista using putty.
Problem is that i insalled the solaris machine as dhcp. and whenever i connect to internet or reboot my system the IP address of solaris... (1 Reply)
Hi guys,
I got one problem which I definetily no idea.
What would the physical address be for virtual address?
1) 2ABC
2) 3F4B
Here is the page table:see attached
Thank you sos sososososso much!! (0 Replies)
hi all
i want to set ip address to a vitrual machine i am using following command.
but it is not ifconfig -a command output.
what is wrong i dont know
bash# ifconfig interfacename plumb
bash# ifconfig interfacename auto-dhcp
Please use code tags next time for your code and data. (4 Replies)
Hi,
I just want to know whether two MAC address can exist in a adapter..
I mean one there will be mandatory one
And another as user defined one..
Any replies will be more helpful..
Please help..
:wall: (0 Replies)
Discussion started by: Priya Amaresh
0 Replies
LEARN ABOUT FREEBSD
if_vxlan
VXLAN(4) BSD Kernel Interfaces Manual VXLAN(4)NAME
vxlan -- Virtual eXtensible LAN interface
SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:
device vxlan
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_vxlan_load="YES"
DESCRIPTION
The vxlan driver creates a virtual tunnel endpoint in a vxlan segment. A vxlan segment is a virtual Layer 2 (Ethernet) network that is over-
laid in a Layer 3 (IP/UDP) network. vxlan is analogous to vlan(4) but is designed to be better suited for large, multiple tenant data center
environments.
Each vxlan interface is created at runtime using interface cloning. This is most easily done with the ifconfig(8) create command or using
the cloned_interfaces variable in rc.conf(5). The interface may be removed with the ifconfig(8) destroy command.
The vxlan driver creates a pseudo Ethernet network interface that supports the usual network ioctl(2)s and is thus can be used with
ifconfig(8) like any other Ethernet interface. The vxlan interface encapsulates the Ethernet frame by prepending IP/UDP and vxlan headers.
Thus, the encapsulated (inner) frame is able to transmitted over a routed, Layer 3 network to the remote host.
The vxlan interface may be configured in either unicast or multicast mode. When in unicast mode, the interface creates a tunnel to a single
remote host, and all traffic is transmitted to that host. When in multicast mode, the interface joins an IP multicast group, and receives
packets sent to the group address, and transmits packets to either the multicast group address, or directly the remote host if there is an
appropriate forwarding table entry.
When the vxlan interface is brought up, a UDP(4)socket(9) is created based on the configuration, such as the local address for unicast mode
or the group address for multicast mode, and the listening (local) port number. Since multiple vxlan interfaces may be created that either
use the same local address or join the same group address, and use the same port, the driver may share a socket among multiple interfaces.
However, each interface within a socket must belong to a unique vxlan segment. The analogous vlan(4) configuration would be a physical
interface configured as the parent device for multiple VLAN interfaces, each with a unique VLAN tag. Each vxlan segment is identified by a
24-bit value in the vxlan header called the ``VXLAN Network Identifier'', or VNI.
When configured with the ifconfig(8) vxlanlearn parameter, the interface dynamically creates forwarding table entries from received packets.
An entry in the forwarding table maps the inner source MAC address to the outer remote IP address. During transmit, the interface attempts
to lookup an entry for the encapsulated destination MAC address. If an entry is found, the IP address in the entry is used to directly
transmit the encapsulated frame to the destination. Otherwise, when configured in multicast mode, the interface must flood the frame to all
hosts in the group. The maximum number of entries in the table is configurable with the ifconfig(8) vxlanmaxaddr command. Stale entries in
the table periodically pruned. The timeout is configurable with the ifconfig(8) vxlantimeout command. The table may be viewed with the
sysctl(8) net.link.vxlan.N.ftable.dump command.
MTU
Since the vxlan interface encapsulates the Ethernet frame with an IP, UDP, and vxlan header, the resulting frame may be larger than the MTU
of the physical network. The vxlan specification recommends the physical network MTU be configured to use jumbo frames to accommodate the
encapsulated frame size. Alternatively, the ifconfig(8) mtu command may be used to reduce the MTU size on the vxlan interface to allow the
encapsulated frame to fit in the current MTU of the physical network.
EXAMPLES
Create a vxlan interface in unicast mode with the vxlanlocal tunnel address of 192.168.100.1, and the vxlanremote tunnel address of
192.168.100.2.
ifconfig vxlan create vxlanid 108 vxlanlocal 192.168.100.1 vxlanremote 192.168.100.2
Create a vxlan interface in multicast mode, with the local address of 192.168.10.95, and the group address of 224.0.2.6. The em0 interface
will be used to transmit multicast packets.
ifconfig vxlan create vxlanid 42 vxlanlocal 192.168.10.95 vxlangroup 224.0.2.6 vxlandev em0
Once created, the vxlan interface can be configured with ifconfig(8).
SEE ALSO inet(4), inet6(4), ifconfig(8), sysctl(8), vlan(8)
M. Mahalingam and et al, Virtual eXtensible Local Area Network (VXLAN): A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3
Networks, August 2014, RFC 7348.
AUTHOR
The vxlan driver was written by Bryan Venteicher <bryanv@freebsd.org>.
BSD December 16, 2014 BSD