Advanced Traffic Management Guide K/KA/KB.15.15

attempts to “plug-and-go” to add the switch, however, since the maximum number of membership
has already been reached, the switch cannot join the stack.
The following example shows the show stacking output before the switch attempts to join.
Example 208 Viewing stack members before the join
HP Stack 3800(config)#: show stacking
Stack ID : 00031cc1-de4d87c0
MAC Address : 1cc1de-4dc765
Stack Topology : Mesh
Stack Status : Active
Uptime : 0d 1h 27m
Software Version : KA.15.05.0000x
Mbr
ID Mac Address Model Pri Status
--- ------------- -------------------------------------- --- ---------------
1 1cc1de-4d87c0 HP J9573A 3800-24G-PoE+-2SFP+ Switch 200 Standby
2 1cc1de-4dc740 HP J9573A 3800-24G-PoE+-2SFP+ Switch 128 Commander
3 1cc1de-4dbd40 HP J9575A 3800-24G-2SFP+ Switch 128 Member
4 1cc1de-4d79c0 HP J9576A 3800-48G-4SFP+ Switch 175 Member
5 1cc1de-000005 HP J9576A 3800-48G-4SFP+ Switch 128 Not Joined
6 1cc1de-000006 HP J9576A 3800-48G-4SFP+ Switch 128 Not Joined
7 1cc1de-000007 HP J9573A 3800-24G-PoE+-2SFP+ Switch 128 Not Joined
8 1cc1de-000008 HP J9573A 3800-24G-PoE+-2SFP+ Switch 128 Not Joined
9 1cc1de-000009 HP J9574A 3800-48G-PoE+-4SFP+ Switch 128 Not Joined
10 1cc1de-00000a HP J9574A 3800-48G-PoE+-4SFP+ Switch 128 Not Joined
When a switch that does not match the MAC addresses attempts to join, that switch reboots when
the maximum configuration is detected. The active stack logs the following:
W 10/07/00 06:01:11 03253 stacking: ST3–CMDR: Maximum number of switches in the stack has been
reached. Cannot add 1cc1de-4da900 type J9576A
The failure can be due to one of the strictly provisioned entries being incorrect. To correct this
entry, reboot the switch. If there are already 10 switches in the stack, you cannot add additional
switches at this time.
Troubleshooting a bad cable
Bad cables can cause the stack port to flap or go down completely. If there are an excessive
number of port flaps, the port is disabled and the following log message appears:
W 10/06:00 23:23:16 03260 chassis: ST4–CMDR: Stack port 1 disabled due to excessive errors.
Check cable. To reenable use 'stacking member 4 stack-port 1 enable'.
When this occurs, the show stacking stack-ports command shows the port with a status
of “Disabled”.
Troubleshooting stacking 313