Joe Baker schrieb:
It is conceivable that in the instance of a nuclear power plant control
system or in a 911 emergency call center, etc that someone might want to
build in redundant Ethernet connections to the thin client.
Or in airtraffic control ...
In my experience, it is more likely that a network switch would fail to
service a port properly than for a NIC to fail, but perhaps having an
extra NIC would provide a workaround for a failing switch (especially if
there is also another switch).
Can we assume that the Ethernet connections would connect via different
switches?
Yes. The two client NICs are connected to two different switch.
Each server has two NICs. The two server NICs are also connected to the two
different switch.
Would they need the same IP address or different IP addresses?
Look, thats a bonding configuration mode 1 (/etc/sysconfig/network/ifcfg-bond0
on SLES 9):
BOOTPROTO='static'
BROADCAST='10.180.1.255'
IPADDR='10.180.1.2'
MTU=''
NETMASK='255.255.255.0'
NETWORK='10.180.1.0'
REMOTE_IPADDR=''
STARTMODE='onboot'
UNIQUE='Ccgx.RfYI5sfd_88'
BONDING_MASTER=yes
BONDING_SLAVE_0='bus-pci-0000:02:02.0'
BONDING_SLAVE_1='bus-pci-0000:07:01.0'
BONDING_MODULE_OPTS='miimon=100 mode=1 use_carrier=0'
The two BONDING_SLAVEs (the two ethernet cards) are both running with the same
IP-Address 10.180.1.2.
So you can pull one LAN cable. Or one ethernet card or one switch can fail. The
server is still availaible.
This is what we need for the clients.
Greetings
KP
--
Klaus-Peter Niedermann
Phone: +49 (0) 7541 / 282-470
+49 (0) 7531 / 696-355
Fax: +49 (0) 7531 / 696-315
E-mail: [EMAIL PROTECTED]
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