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sachinraja Wed, 12/06/2006 - 15:37
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Not at all. If all the switches are connected to the same power source, they might reboot together.. but one switch going down on a stack will not ramper the stack's performance.... the master/slave relation is recalculated and assigned to the current switch which is up. you can read on the "stacking technology" on the CCO to know more about this...


Hope this helps.. all the best.. rate replies if found useful..


Raj

dan.larson Thu, 12/07/2006 - 13:49
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This is the part that confused me, they all report the same amount of uptime...


When the master moves does the uptime restart?


Cisco Internetwork Operating System Software

IOS (tm) C3750 Software (C3750-I9-M), Version 12.1(19)EA1c, RELEASE SOFTWARE (fc2)

Copyright (c) 1986-2004 by cisco Systems, Inc.

Compiled Tue 03-Feb-04 09:20 by yenanh

Image text-base: 0x00003000, data-base: 0x007C887C


ROM: Bootstrap program is C3750 boot loader

BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.1(14r)EA1a, RELEASE SOFTWARE (fc1)


HFMA-3750 uptime is 2 hours, 27 minutes

System returned to ROM by power-on

System restarted at 09:59:11 CST Wed Dec 6 2006

System image file is "flash:c3750-i9-mz.121-19.EA1c/c3750-i9-mz.121-19.EA1c.bin"


cisco WS-C3750G-24TS (PowerPC405) processor (revision D0) with 118776K/12288K bytes of memory.

Processor board ID CAT0815N2AD

Last reset from power-on

2 Virtual Ethernet/IEEE 802.3 interface(s)

84 Gigabit Ethernet/IEEE 802.3 interface(s)

The password-recovery mechanism is enabled.


512K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address : 00:0F:F7:2C:5E:00

Motherboard assembly number : 73-7058-10

Power supply part number : 341-0045-01

Motherboard serial number : CAT0815089H

Power supply serial number : LIT0813012S

Model revision number : D0

Motherboard revision number : A0

Model number : WS-C3750G-24TS-S

System serial number : CAT0815N2AD

Hardware Board Revision Number : 0x09



Switch Ports Model SW Version SW Image

------ ----- ----- ---------- ----------

* 1 28 WS-C3750G-24TS 12.1(19)EA1c C3750-I9-M

2 28 WS-C3750G-24TS 12.1(19)EA1c C3750-I9-M

3 28 WS-C3750G-24TS 12.1(19)EA1c C3750-I9-M



Switch 02

---------

Switch Uptime : 2 hours, 26 minutes

Base ethernet MAC Address : 00:0F:F7:38:61:80

Motherboard assembly number : 73-7058-10

Power supply part number : 341-0045-01

Motherboard serial number : CAT081507GE

Power supply serial number : LIT081300LV

Model revision number : D0

Motherboard revision number : A0

Model number : WS-C3750G-24TS-S

System serial number : CAT0815N3CE


Switch 03

---------

Switch Uptime : 2 hours, 26 minutes

Base ethernet MAC Address : 00:15:C6:32:FD:00

Motherboard assembly number : 73-7058-13

Power supply part number : 341-0045-01

Motherboard serial number : CAT09390T3S

Power supply serial number : PHI0931L0V1

Model revision number : M0

Motherboard revision number : B0

Model number : WS-C3750G-24TS-S

System serial number : CAT0939Z0GS


Configuration register is 0xF

glen.grant Thu, 12/07/2006 - 14:05
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Sure you don't have them all on the same power supply ?

sachinraja Thu, 12/07/2006 - 16:40
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hello larson,


If the master goes out, it does not restrat anything... If it does, there is no use of a technology like stacking.... just go to the child switches and see a "show version" and see the reason for a reboot... if it says the systems restarted by power-on, i guess all these switches are in the same power supply and it is manually rebooted.. take a note of this..


Hope this helps.. all the best. rate replies if found useful..


Raj

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