Dell Brocade G620 Brocade 8.0.1 Fabric OS Troubleshooting and Diagnostics Guid - Page 31

Restrictions, In TI Zones

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General Troubleshooting NOTE Superping provides an indication if all ISLs are covered. If all the ISLs are not covered, you can increase the coverage count and maximum retries to transmit, so that complete coverage of all ISLs is achieved. Consider the following example in which a few errors are recorded on ISLs 3/205-->2/25, 3/204-->2/27, 2/42-->101/3, and 2/1->101/8. The potential faulty link is internal port 0/284 on domain 2 with the maximum of 100 percent failure. ISL COVERAGE SNO ISL STATUS 1 3/123[128]--> 165/96[128] SUCCESS(5/5) 2 3/205[128]--> 2/25[128] FAILURE(7/50) 3 3/204[128--> 2/27[128] FAILURE(11/50) 4 165/99[128]--> 101/16[128] SUCCESS(5/5) 6 2/42[128]--> 101/3[128] FAILURE(10/67) 7 2/1[128]--> 101/8[128] FAILURE(8/33) INTERNAL PORT COVERAGE SNO DOMAIN INTRNL_PORT STATUS 1 2[128] 0/272 SUCCESS(40/40) 2 2[128] 0/276 SUCCESS(44/44) 3 2[128] 0/280 SUCCESS(30/30) 4 2[128] 0/284 FAILURE(20/20)

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NOTE
Superping provides an indication if all ISLs are covered. If all the ISLs are not covered, you can increase the coverage count and
maximum retries to transmit, so that complete coverage of all ISLs is achieved.
Consider the following example in which a few errors are recorded on ISLs 3/205-->2/25, 3/204-->2/27, 2/42-->101/3, and 2/1--
>101/8. The potential faulty link is internal port 0/284 on domain 2 with the maximum of 100 percent failure.
ISL COVERAGE
-------------
SNO
ISL
STATUS
-----------------------------------------------------------------------------
1
3/123[128]--> 165/96[128]
SUCCESS(5/5)
2
3/205[128]--> 2/25[128]
FAILURE(7/50)
3
3/204[128--> 2/27[128]
FAILURE(11/50)
4
165/99[128]--> 101/16[128]
SUCCESS(5/5)
6
2/42[128]--> 101/3[128]
FAILURE(10/67)
7
2/1[128]--> 101/8[128]
FAILURE(8/33)
INTERNAL PORT COVERAGE
-----------------------
SNO
DOMAIN
INTRNL_PORT
STATUS
-----------------------------------------------------------------------------
1
2[128]
0/272
SUCCESS(40/40)
2
2[128]
0/276
SUCCESS(44/44)
3
2[128]
0/280
SUCCESS(30/30)
4
2[128]
0/284
FAILURE(20/20) <== 100% failure
When an ECHO frame is dropped, all the ISLs in the path are marked as failed. It is not possible to determine the exact ISL link that
dropped the frame. Because of this, all the ISLs in the path record some failures. The ISL with the actual error has the maximum
percentage of failures, as this ISL, when selected in any possible path, causes the ECHO frame to be dropped and accumulates a higher
failure percentage.
Restrictions
∙
Fabric reconfiguration cannot occur while using the Superping feature. It is assumed that the fabric is stable before the
fcPing
--allpaths
command is executed.
∙
The control path for interswitch communication should be available, even if the data path for device-to-device communication
may have resource starvation.
∙
When executed in a fabric with trunk ports, only the trunk master index is output to the user (for example, individual coverage
statistics for each trunk-member are not available).
∙
All switches must have Fabric OS v6.3.0 or later.
∙
Superping requires that the FC ECHO ELS frame is supported by end-devices.
∙
In TI Zones, when failover is disabled and Superping is executed on a destination device included in the TI Zone, then
Superping displays failures on all ISLs that are not part of the TI Zone. Also, when Superping is executed on a device that is not
present in a TI Zone, failures are shown on all ISLs that are part of any TI Zone.
∙
This feature is not supported in interopMode 2 or 3.
∙
In frame redirection configurations, where there is a physical host, physical target, virtual initiator, and virtual target; Superping
only identifies the path from the physical host to the physical target regardless of whether the data path consists of the path
from the physical target to the virtual target through the virtual initiator.
General Troubleshooting
Brocade Fabric OS Troubleshooting and Diagnostics Guide
53-1004126-01
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