Why we are unable to use 1/2 and 1/3 on fiber module in s3500? How do I verify which ports are being used for stacking?

Aruba Employee

Port 1/2 and 1/3 will not be seen on following commands:

# show port status
# show port stats

before they are removed from stacking.

Port lights start blinking but the link will not come up.

These ports are used for automatic stacking with other Aruba mobility switches.

 

By default ports 1/2 and 1/3 on the switch are set up for stacking.

(ArubaS2500-24P) #  show stacking interface

stack1/2
--------
stack1/2 is administratively Enabled, link is Down, line protocol is Down
Speed: N/A, MTU: 9216 bytes, Link flaps: 0
Last update of counters:        0d 00:00:00 ago
Last clearing of counters:      0d 00:00:00 ago
Link status last changed:       0d 00:00:00 ago
Statistics:
    Received 0 frames, 0 octets
    0 broadcasts, 0 runts, 0 giants, 0 throttles
    0 error octets, 0 CRC frames
    0 multicast, 0 unicast
    Transmitted 0 frames, 0 octets
    0 broadcasts, 0 throttles
    0 errors octets, 0 deferred
    0 collisions, 0 late collisions

stack1/3
--------
stack1/3 is administratively Enabled, link is Down, line protocol is Down
Speed: N/A, MTU: 9216 bytes, Link flaps: 0
Last update of counters:        0d 00:00:00 ago
Last clearing of counters:      0d 00:00:00 ago
Link status last changed:       0d 00:00:00 ago
Statistics:
    Received 0 frames, 0 octets
    0 broadcasts, 0 runts, 0 giants, 0 throttles
    0 error octets, 0 CRC frames
    0 multicast, 0 unicast
    Transmitted 0 frames, 0 octets
    0 broadcasts, 0 throttles
    0 errors octets, 0 deferred
    0 collisions, 0 late collisions

 

We can remove the stacking and use those as regular SFP ports if you want by entering the following commands.

(ArubaS3500-24-POE) #configure terminal
(ArubaS3500-24-POE) (config) #delete stacking interface stack 1/2
(ArubaS3500-24-POE) (config) #delete stacking interface stack 1/3
(ArubaS3500-24-POE) (config) #write mem

By default, port 1/2 and 1/3 are used for stacking on Aruba Mobility switches.

To use those ports as stacking ports, we need to remove stacking  from those ports.

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Last update:
‎08-06-2014 08:23 AM
Updated by:
 
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