Known product limitations
6
Red Hat Linux may occasionally change the order of the Ethernet ports
CPM Ethernet ports may occasionally be renumbered with Red Hat Enterprise Linux.
The order that Ethernet ports are named (eth0, eth1, etc.) is dependent on the driver
initialization order. For Red Hat systems, the device order can change between boots because
the igb and ixgbe drivers are kernel modules that can race with each other to initialize.
Kernels with the igb and ixgbe drivers compiled in (not kernel modules) initialize based on the
order that the busses are scanned, so the naming appears static. AMC cards and USB devices
can still cause the device naming to change based on where in the bus the devices appear
when the system boots up.
Workaround: The udev device manager can assign static names based on other device
properties (such as the MAC address) for this type of naming issue. Refer to
the Red Hat OS documentation for udev usage.
Resolution: This issue may be addressed in a future release of the Red Hat operating
system.
Issue No: RSYS00048898
CPM DHCP client identifier has a different format than other nodes on MV 4 and MV 5
When an ATCA-4500 CPM is inserted into a chassis slot, its DHCP client identifier specified in
the dhcpd.conf file requires a different format than other modules inserted in the same slot.
This only occurs on MontaVista 4 and MontaVista 5.
If the CPM is inserted in slot 4 of chassis 5_2, the dhcpd.conf file matches only when it uses
either of these identifier specifications:
option dhcp-client-identifier 00:30:30:3a:33:32:3a:32:64:3a:33:34;
option dhcp-client-identifier "\00000:32:2d:34";
If an ATCA-7220, ATCA-9100, or ATCA-4310 is installed in the same location, dhcpd.conf
requires one of these specifications in order to match:
option dhcp-client-identifier 00:32:2d:34;
option dhcp-client-identifier "\0002-4";
Workaround: None.
Resolution: This issue may be addressed in a future release.
Issue No: RSYS00048746
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