Red Hat Bugzilla – Bug 161773
Bad: "Error: IP Address not on same network as this host" when using Linux VLAN drivers
Last modified: 2009-04-16 16:09:55 EDT
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Description of problem:
We are using IBM blades to host a small cluster. The blades come with Broadcom's 5700 series network interfaces (can't remember the exact model). We can use either Broadcom's own bonding + VLAN drivers, or the ones that ship with the linux kernel. The Broadcom VLAN+bonding driveres experience a stability issue so we have to use the Linux standard drivers instead. However, using the linux drivers result in the NICs being named to bond0.4010, that is, bond0. + a VLAN ID appended to the bond0.
Problem: RHCS uses ifconfig to list the NICs, and ifconfig only doesn't show the full NIC name if it is too long. Thus the error message "Error: IP Address not on same network as this host". Another problem with RHCS is that the regex matching the interface names from ifconfig output doesn't match a dot in the NIC name...
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Use the bonding.o and 8021q.o modules on RHCS cluster members
2. Try to use one of the bond0.xxxx interfaces for the RHCS traffic, xxxx being a four-digit VLAN id
Actual Results: The mentioned error message
Expected Results: The cluster should properly have had the nodes set up
I *think* the option to use netlink as the service IP internals would fix this
corner case as far as the back-end is concerned.
At this point, this change will not be made to RHEL 3 clustering.