Extreme Networks BlackDiamond 6804 Troubleshooting Manual page 73

To clarify the relationship between MSM ports, the backplane links, and the I/O module slots shown in
Example 1, consider the following annotated adaptation of the example's output (not command output;
for instructional purposes only):
MSM
Port Channel
------- -------
Port 1: (chan0,
Port 2: (chan0,
Port 3: (chan0,
Port 4: (chan0,
Port 5: (chan0,
Port 6: (chan0,
Port 7: (chan0,
Port 8: (chan0,
Port 9: (chan1,
Port 10: (chan1,
Port 11: (chan1,
Port 12: (chan1,
Port 13: (chan1,
Port 14: (chan1,
Port 15: (chan1,
Port 16: (chan1,
Port 17: (chan2,
Port 18: (chan2,
Port 19: (chan2,
Port 20: (chan2,
Port 21: (chan2,
Port 22: (chan2,
Port 23: (chan2,
Port 24: (chan2,
Port 25: (chan3,
Port 26: (chan3,
Port 27: (chan3,
Port 28: (chan3,
Port 29: (chan3,
Port 30: (chan3,
Port 31: (chan3,
Port 32: (chan3,
The report in Example 1 shows 32 ports from the MSM switch fabric to the backplane; four channels;
four MSM ports to each BlackDiamond 6808 I/O module slot.
In this example, chassis slots 1, 7, and 8 are populated with I/O modules capable of responding to the
backplane health check packets from the system health checker. Tx and Rv packet values indicate the
presence of a module, so—for example—MSM ports 1, 9, 17, and 25 are the MSM ports to I/O module
slot 1, MSM ports 7, 15, 23, and 31 are the MSM ports to I/O module slot 7, and MSM ports 8, 16, 24,
and 32 are the MSM ports to I/O module slot 8.
MSM ports 1 through 8 are the first channel (channel0) to each I/O module slot, MSM ports 9 through
16 are the second channel (channel1) to each I/O module slot, and so forth. In this example, no failures
appear for any of these channels.
In this example, I/O module slot 1 has fewer reported diagnostics packets sent because it recently had
extended diagnostics run against it, which reset the counter.
Advanced System Diagnostics and Troubleshooting Guide
Module
Slot
------
slot1) 6140
slot2) 0
slot3) 0
slot4) 0
slot5) 0
slot6) 0
slot7) 214020 214020...
slot8) 214010 214010...
slot1) 6140
slot2) 0
slot3) 0
slot4) 0
slot5) 0
slot6) 0
slot7) 214020 214020...
slot8) 214010 214010...
slot1) 6140
slot2) 0
slot3) 0
slot4) 0
slot5) 0
slot6) 0
slot7) 214020 214020...
slot8) 214010 214010...
slot1) 6140
slot2) 0
slot3) 0
slot4) 0
slot5) 0
slot6) 0
slot7) 214020 214020...
slot8) 214010 214010...
System (CPU and Backplane) Health Check
6140...
0...
0...
0...
0...
0...
6140...
0...
0...
0...
0...
0...
6140...
0...
0...
0...
0...
0...
6140...
0...
0...
0...
0...
0...
73