ATM Configuration and Troubleshooting Guide

Troubleshooting
Troubleshooting MPOA
Chapter 9 253
Figure 9-14 Flowchart for Troubleshooting MPOA
Start
OK?
OK?
Yes
No
No
Yes
Yes
No
OK?
No
No
OK?
Yes
Run ping from local MPOA-capable LEC to any target on local ELAN.
Run ping from local MPOA-capable LEC to the “real” MPOA destination.
Check the MPOA-specific
Run atmmgr to check the MPOA VCs.
Run mpcarp to see if the MPS was discovered.
Check to see if the MPC-MPS VC exists.
Lower the threshold.
Troubleshoot the routing configuration.
Contact HP.
part of the router configurations.
A
B
D
C
Troubleshoot your LAN Emulation (see the
section earlier in this chapter).
Contact HP.
No
MPOA is correctly set up.
E
OK?
No
F
Check mpcstat output for Resolve Reply Acks.
OK?
G
H
I
No
Yes
Check all MPOA devices from the
“problem” router to the destination.
Check the MTU size of local I/F and destination I/F.
Yes
Yes
Changes
made?
Contact HP.
No
Yes
Yes
J
K
Changes
made?
Contact
No
Yes
Changes
made?
HP.
Changes
made?