Fixing A Bad Connection Between Stack Ports - Cisco Catalyst 3560-X Software Configuration Manual
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Also See for Catalyst 3560-X:
- Command reference manual (1188 pages) ,
- Software configuration manual (1438 pages) ,
- Manual (276 pages)
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Chapter 1
Managing Switch Stacks
This is now the port status:
Switch# show switch stack-ports summary
Switch#/
Port#
--------
1/1
1/2
2/1
2/2
Only one end of the cable connects to a stack port, Port 1 on Switch 2.
•
•
Diagnosing the problem:
•
•
Fixing a Bad Connection Between Stack Ports
Stack cables connect all members. Port 2 on Switch 1 connects to Port 1 on Switch 2.
This is the port status:
Switch# show switch stack-ports summary
Switch#/
Port#
--------
1/1
1/2
2/1
2/2
Diagnosing the problem:
•
•
•
The connection between Port 2 on Switch 1 and Port 1 on Switch 2 is unreliable on at least one of the
connector pins.
OL-25303-03
Stack
Neighbor
Port
Status
------
--------
OK
2
Absent
None
Down
None
OK
1
The Stack Port Status value for Port 2 on Switch 1 is Absent, and the value for Port 1 on Switch 2 is
Down.
The Cable Length value is No cable.
Verify the cable connection for Port 2 on Switch 1.
Port 2 on Switch 1 has a port or cable problem if
The In Loopback value is Yes.
–
or
The Link OK, Link Active, or Sync OK value is No.
–
Stack
Neighbor
Port
Status
------
--------
OK
2
Down
None
Down
None
OK
1
The Stack Port Status value is Down.
Link OK, Link Active, and Sync OK values are No.
The Cable Length value is 50 cm. The switch detects and correctly identifies the cable.
Cable
Link
Link
Length
OK
Active
--------
----
------
50 cm
Yes
Yes
No cable
No
No
50 cm
No
No
50 cm
Yes
Yes
Cable
Link
Link
Length
OK
Active
--------
----
------
50 cm
Yes
Yes
50 cm
No
No
50 cm
No
No
50 cm
Yes
Yes
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
Troubleshooting Stacks
Sync
#
In
OK
Changes
Loopback
To LinkOK
----
---------
--------
Yes
1
No
No
2
No
No
2
No
Yes
1
No
Sync
#
In
OK
Changes
Loopback
To LinkOK
----
---------
--------
Yes
1
No
No
2
No
No
2
No
Yes
1
No
1-39
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Table of Contents
Troubleshooting
