Reference Guide
Stacking S-Series Switches | 975
Recover from a Card Mismatch State on an S-Series Stack
A card mismatch occurs if the stack has a provision for the lowest available stack number which does not
match the model of a newly added unit . To recover, disconnect the new unit. Then, either:
• remove the provision from the stack, then reconnect the standalone unit, or
• renumber the standalone unit with another available stack number on the stack.
---------------------------STANDALONE UNIT BEFORE------------------------------------
Standalone#show system brief
Stack MAC : 00:01:e8:d5:ef:81
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
---------------------------------------------------------------------------
0 Management online S50V S50V 7.8.1.0 52
1 Member not present S50N
2 Member not present S50V
3 Member not present S50V
4 Member not present
5 Member not present
6 Member not present
7 Member not present
-------------------------------STACK BEFORE------------------------------------------
Stack#show system brief
Stack MAC : 00:01:e8:d5:f9:6f
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
---------------------------------------------------------------------------
0 Member not present S25N
1 Management online S50N S50N 7.8.1.0 52
2 Standby online S50V S50V 7.8.1.0 52
3 Member not present
4 Member not present
5 Member not present
6 Member not present
7 Member not present
----------------------------STANDALONE UNIT AFTER------------------------------------
01:38:34: %STKUNIT0-M:CP %POLLMGR-2-ALT_STACK_UNIT_STATE: Alternate Stack-unit is pres-
ent
01:38:34: %STKUNIT0-M:CP %CHMGR-5-STACKUNITDETECTED: Stack unit 1 present
Going for reboot. Reason is Stack merge
01:38:34: %STKUNIT0-M:CP %CHMGR-5-STACKUNITDETECTED: Stack unit 2 present
--------------------------------STACK AFTER------------------------------------------
23:11:25: %STKUNIT1-M:CP %CHMGR-5-STACKUNITDETECTED: Stack unit 0 present
23:11:40: %STKUNIT1-M:CP %CHMGR-2-STACKUNIT_DOWN: Stack unit 0 down - card removed
23:12:25: %STKUNIT1-M:CP %CHMGR-5-STACKUNITDETECTED: Stack unit 0 present
23:12:34: %STKUNIT1-M:CP %CHMGR-5-CHECKIN: Checkin from Stack unit 0 (type S50V, 52
ports)
23:12:34: %STKUNIT1-M:CP %CHMGR-3-STACKUNIT_MISMATCH: Mismatch: Stack unit 0 is type
S50V - type S25N required
Stack#show system brief
Stack MAC : 00:01:e8:d5:f9:6f
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
---------------------------------------------------------------------------
0 Member type mismatch S25N S50V 7.8.1.0 52