This soft copy for use by IBM employees only.
If one of the LECs that is unable to communicate is the IBM 8285′s, check to
see if the IP interfaces, CIP, Ethernet LEC and token-ring LEC, have been
defined with different subnetworks. If the IP interfaces are on the same
subnetwork, only the CIP interface is used.
144 ATM Workgroup Solutions: Implementing the 8285 ATM Switch