Correcting Marginal Links - HP AE370A - Brocade 4Gb SAN Switch 4/12 Administrator's Manual
Hp storageworks fabric os 5.2.x administrator guide (5697-0014, may 2009)
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Also See for AE370A - Brocade 4Gb SAN Switch 4/12:
- Installation instructions (2 pages) ,
- Administrator's manual (576 pages) ,
- Hardware reference manual (256 pages)
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Correcting marginal links
A marginal link involves the connection between the switch and the edge device. Isolating the exact cause
of a marginal link involves analyzing and testing many of the components that make up the link (including
the switch port, switch SFP, cable, the edge device, and the edge device SFP).
To troubleshoot a marginal link:
1.
Enter the portErrShow command.
switch:admin> porterrshow
frames
tx
sig=====================================================================
0:
22
1:
22
2:
0
3:
0
4:
149m
5:
149m
6:
147m
7:
150m
8:
0
9:
0
10:
0
11:
0
12:
0
13:
0
14:
0
15:
0
32:
0
33:
0
34:
0
35:
0
36:
0
37:
0
38:
0
39:
0
40:
99m 146m
41:
99m 149m
42:
99m 152m
43:
99m 147m
44:
0
45:
0
46:
0
47:
0
switch:admin>
2.
Establish if there are a relatively high number of errors (such as CRC errors or ENC_OUT errors), or if
there are a steadily increasing number of errors to confirm a marginal link.
3.
If you suspect a marginal link, isolate the areas by moving the suspected marginal port cable to a
different port on the switch. Re-seating of SFPs may also cure marginal port problems.
If the problem stop, the switch port or the SFP is marginal (proceed to
If the problem does not stop, refer to
4.
Replace the SFP on the marginal port.
enc
crc
too
too
rx
in
err shrt long
24
0
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99m
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99m
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99m
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99m
0
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0
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step
bad
enc disc link loss loss frjt fbsy
eof
out
c3 fail sync sig
0
1.5m
0
7
0
1.2m
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0
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448
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666
0
6
796
0
15k
0
2
303
0
665
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2
221
0
16k
0
2
144
0
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7.
Fabric OS 5.2.x administrator guide 299
3
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step
4)
- Quick Links:
- Configuring the Ethernet Interface
Hide quick links:
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Table of Contents
Troubleshooting
