12-09-2005
RedHat Cluster Suite - multicast problem
Hi,
I have a Redhat Cluster Suite with 2 nodes, using option "Multicast HeartBeating" on clumembd, whith default IP: 225.0.0.11
The cluster member names are:
[root@rhcs1 root]# grep node /etc/hosts
192.168.100.1 node1
192.168.100.2 node2
My problem is that the Multicast IP is relating to other network addresses:
See:
[root@rhcs1 root]# ping 225.0.0.11
PING 225.0.0.11 (225.0.0.11) 56(84) bytes of data.
64 bytes from 10.20.178.241: icmp_seq=0 ttl=64 time=0.115 ms
64 bytes from 10.20.178.242: icmp_seq=0 ttl=64 time=0.353 ms (DUP!)
How to relate Multicast 225.0.0.11 to cerrect IPs (192.168.100.1 and 192.168.100.2) ?
Thanks.
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LEARN ABOUT PHP
socket-context-options
SOCKET-CONTEXT-OPTIONS(3) 1 SOCKET-CONTEXT-OPTIONS(3)
Socket context options - Socket context option listing
Socket context options are available for all wrappers that work over sockets, like tcp, http and ftp.
o $bindto
- Used to specify the IP address (either IPv4 or IPv6) and/or the port number that PHP will use to access the network. The syntax
is ip:port for IPv4 addresses, and [ip]:port for IPv6 addresses. Setting the IP or the port to 0 will let the system choose the IP
and/or port.
Note
As FTP creates two socket connections during normal operation, the port number cannot be specified using this option.
o $backlog
- Used to limit the number of outstanding connections in the socket's listen queue.
Note
This is only applicable to stream_socket_server(3).
+--------+-----------------+
|Version | |
| | |
| | Description |
| | |
+--------+-----------------+
| 5.3.3 | |
| | |
| | Added backlog. |
| | |
| 5.1.0 | |
| | |
| | Added bindto. |
| | |
+--------+-----------------+
Example #1
Basic $bindto usage example
<?php
// connect to the internet using the '192.168.0.100' IP
$opts = array(
'socket' => array(
'bindto' => '192.168.0.100:0',
),
);
// connect to the internet using the '192.168.0.100' IP and port '7000'
$opts = array(
'socket' => array(
'bindto' => '192.168.0.100:7000',
),
);
// connect to the internet using the '2001:db8::1' IPv6 address
// and port '7000'
$opts = array(
'socket' => array(
'bindto' => '[2001:db8::1]:7000',
),
);
// connect to the internet using port '7000'
$opts = array(
'socket' => array(
'bindto' => '0:7000',
),
);
// create the context...
$context = stream_context_create($opts);
// ...and use it to fetch the data
echo file_get_contents('http://www.example.com', false, $context);
?>
PHP Documentation Group SOCKET-CONTEXT-OPTIONS(3)