Switch ordering in a 3750x stack
Hello,
Does it matter which switch in a 3750x stack is the master (switch1)? I have two 3750x's, one a 48 port poe and another a 24 port poe. They are in a stack. Now the 48 port is on top and stacking cables connected to the 24 port on bottom. Of course the bottom switch becomes switch 1 and has interfaces Gi1/0/1 through 1/0/24.
They are both running 12.2(55)SE8 C3750E-UNIVERSALK9-M (ipbase). They are in staging now going to a new remote branch office.
I guess it really doesn't matter which switch is 1 and which is 2 does it? When we get into the new office and I break this equipment down, then I will rack the 24 port on top and the 48 port on bottom then if that makes more sense.
Or I could change it, I guess by altering this line in the config right
switch 1 provision ws-c3750x-24p
switch 2 provision ws-c3750x-48p
to
switch 1 provision ws-c3750x-48p
switch 2 provision ws-c3750x-24p
Or do you think a 24 port as the master would be better. If it has less ports to manage, maybe more CPU cycles to do master stack related things?
Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Cisco recommends the stack master not host stack uplinks. As best as I can tell, this is to try to keep some CPU processing off the stack master. So, in theory, having the master on the switch with the fewer ports might be "better" too. (Also if only one uplink, keep it off the stack master.)
As higher stack priority doesn't preempt (when a member joins a stack), you cannot guarantee which switch is the stack master unless you manually oversee the stack election. So, personally, I don't try to control it. Also, if the switch stack is forwarding in hardware, as it should, I wouldn't expect such forwarding to matter much to the switch running as master, i.e. available CPU cycles, for master needs, should be the about the same on any stack unit.
Similar Messages
-
CISCO 3750X stacking for 5 switches , only 4 switches are coming in stack
Dear All,
I have 5 cisco 3750X switches ,but only 4 switches coming up 5 switches i am unable to see .
Connection for the switch :Please find the attached snapshot for the stack data connection .
Also find the snapshot for the stack power connection .
Please provide your assistance and support to overcome this issue .Dear Marvin,
Thanks for your reply.
is my connection provided in attachment for data stack are ok .
i login to Switch # 5 through console
following is the result :--
switch: ?
? -- Present list of available commands
arp -- Show arp table or arp-resolve an address
boot -- Load and boot an executable image
cat -- Concatenate (type) file(s)
copy -- Copy a file
delete -- Delete file(s)
dir -- List files in directories
flash_init -- Initialize flash filesystem(s)
format -- Format a filesystem
fsck -- Check filesystem consistency
help -- Present list of available commands
memory -- Present memory heap utilization information
mgmt_clr -- clear management port statistics
mgmt_init -- initialize management port
mgmt_show -- show management port statistics
mkdir -- Create dir(s)
more -- Concatenate (display) file(s)
ping -- Send ICMP ECHO_REQUEST packets to a network host
rename -- Rename a file
reset -- Reset the system
rmdir -- Delete empty dir(s)
set -- Set or display environment variables
set_bs -- Set attributes on a boot sector filesystem
set_param -- Set system parameters in flash
sleep -- Pause (sleep) for a specified number of seconds
type -- Concatenate (type) file(s)
unset -- Unset one or more environment variables
version -- Display boot loader version
switch: version
C3750E Boot Loader (C3750X-HBOOT-M) Version 12.2(58r)SE, RELEASE SOFTWARE (fc1)
Compiled Tue 26-Apr-11 06:59 by abhakat
switch: boot
Loading "flash:/c3750e-universalk9-mz.122-58.SE2/c3750e-universalk9-mz.122-58.SE2.bin"...flash:/c3750e-universalk9-mz.122-58.SE2/c3750e-universalk9-mz.122-58.SE2.bin: no such file or directory
Error loading "flash:/c3750e-universalk9-mz.122-58.SE2/c3750e-universalk9-mz.122-58.SE2.bin"
Interrupt within 5 seconds to abort boot process.
Boot process failed...
switch:
All other 4 switches i can see in stack but not these switches and also the status light for this switches is blinking green please provide your assistance . -
Few questions about 3750X stack switch
Dear,
I have just joined this helpful community. Since I am still a newbie, it is my hope to comprehend through our discussions. I would like to ask few questions about 3750X stack switch:
What kind of switches are considered as provisioned switch?
What is the purpose of using provision switch?
Which advantages does a provision switch provide? If we don't use provision feature, what would be happened?
Thank you very much. Look forward to reading your replies.Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Ivan's reference provides the details, but in real world where provisioned switches are nice include: if a switch member fails, that's switch member's configuration is still present and can be used on a like model replacement.
Also: for new stack members, being able to provision the new switch stack, before you add it to the stack, save a little time when you add the stack member to the stack. I.e. you can provision the stack member ahead of time, and then when you add the stack member, as soon as it joins the stack, it has the desired configuration. -
I installed a new 3750x stack today, 3 members. I found that one of the stack cables is too short, so I just plugged two of the 3 in and fired them up.
I expected them to form a single stack, but ended up with a stack of 2 and 1. Is this expected behavior? It's pretty much what what it would look like with a failed cable...
And no, I just powered them on and left for the day...didn't have an day time to console in.Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
I would also recommend getting the top and bottom switches connected, both for redundancy and performance. If the standard cable is too short, you can order a longer cable. -
3750x stack issue adding additional unit
I have a 3750X stack with 2 48 port members that have been up and running for over a year without issue.
I'm trying to add a new 24 port 3750X. I've made sure the priority is correct, and I've added a provision for the new member in the stack.
they are all running the exact same version of IOS.
I think the problem is, the version of the stack. the existing stack states it is version 1.45, while the new member states it is version 6.45
According to what I've read, the way to upgrade the stack version is to upgrade the IOS, but the IOS is already at the version of the new member.
I've not tried to reboot the existing stack because it's in high usage production.
here's the data I think is relevant. if anyone has a clue or needs more info, let me know.
Here's the existing stack:
The System image file is "flash:/c3750e-universalk9-mz.122-55.SE5/c3750e-universalk9-mz.122-55.SE5.bin"
BOOTLDR: C3750E Boot Loader (C3750X-HBOOT-M) Version 12.2(53r)SE2, RELEASE SOFTWARE (fc1)
Stack State Machine View
==============================================================
Switch Master/ Mac Address Version Current
Number Member (maj.min) State
1 Master 7cad.74eb.3300 1.45 Ready
2 Member bc16.656a.5a80 1.45 Ready
Here's the new Member:
System image file is "flash:/c3750e-universalk9-mz.122-55.SE5/c3750e-universalk9-mz.122-55.SE5.bin"
BOOTLDR: C3750E Boot Loader (C3750X-HBOOT-M) Version 12.2(58r)SE1, RELEASE SOFTWARE (fc1)
Stack State Machine View
==============================================================
Switch Master/ Mac Address Version Current
Number Member (maj.min) State
3 Master e4c7.22a1.f400 6.45 ReadyI actually need the IP Base because this stack does routing.
I think I need a license upgrade on the new switch.
I'm looking into it now. -
Good Morning,
I have a 3750x stack running 15.0(2)SE6.
Today I started seeing some weird problems in the logs
" %ADJ-3-RESOLVE_REQ : Adj resolve request: Failed to resolve <IP Address> <vlan ID>..
To my knowledge no changes have been made except updating the NTP and Timezone settings of the switch.
The problems is that before I rebooted a vmWare - Host all communication with said host worked like a champ. After reboot of said host, the only communications that work are from the host outward. Anyone have any ideas? I would love to reboot, but as this is production hours that is not an option.Seems that if your logged in you can't search this bug. If you google it while your logged out google will come up with a hit and you can read the bug.
The the text under conditions does not make any sense to me. Nobody wants to see a log message every time the device needs to resolve an arp entry. You shouldn't have to disable something the makes the switch perform better just to avoid filling up the log with garbage.
The message interpreter tells you
Explanation An internal software error occurred.
The details tell you to open a tac case.
Bottom line is..Will it be fixed, and in what code level will it be fixed. -
Upgrading 3750X Stack IOS (suggestions)
I'm reading all sorts of problematic issues with upgrading the 3750X stack IOS on the internet. I have never performed this before and would like anyone'e suggestion on how I should do this and what I should be looking for. I will be upgrading from 12.2(53r)SE2 to 12.2.(55)SE8.
Let's say you have three 3750X in a stack. OK?
So before you even begin to push the IOS to your switch, you need to download the correct IOS for each member of your stack. Make sure each member of your switch is found in the Supported Hardware list.
Download the "universal" TAR file. Next, once you've downloaded the IOS, make sure you verify the MD5 hash value against the value found in the Cisco website. The MD5 hash value must match.
Make sure that all members of your switch stack have the same licenses and feature set.
Ok, now you've got the preparatory set, you do the actual command to push the IOS into your stack. The command is very simple. Remember, I presume that you have three switches in a stack.
The command is: archive download-sw /destination 1 /destination 2 /destination 3 tftp:///filename.tar
Using the simplified command above, this will instruct the switch to download the IOS from your TFTP server into the switch stack master's memory. The "/destination X" means it will be pushed out to each member one-at-a-time. The boot statement will also be changed so the stack will know what IOS to use.
Hope this helps. -
%PLATFORM-1-CRASHED on 3750X stack
I have a stack of two 3750X's (WS-C3750X-24P-S) running c3750e-universalk9-mz.150-1.SE3.bin.
One of them (the master at the time) crashed on 27/28th Feb & appears to have kept restarting and crashing again.
Here is the syslog...
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: System previously crashed with the following message: (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.0(1)SE3, RELEASE SOFTWARE (fc1) (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: Technical Support: http://www.cisco.com/techsupport (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: Copyright (c) 1986-2012 by Cisco Systems, Inc. (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: Compiled Wed 30-May-12 13:41 by prod_rel_team (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: (QG-BLUECP-
Feb 28 04:11:28.770: %PLATFORM-1-CRASHED: ESR: 0x00000000 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: SRR0: 0x01B97A9C SRR1: 0x00029230 SRR2: 0x01B80DAC SRR3: 0x00029230 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: BESRA: 0x00000000, BESRB: 0x00000000, BEAR: 0x00000000 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: CPU Register Context: (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Vector = 0x00000200 PC = 0x01B80DAC MSR = 0x00029230 CR = 0x30009005 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: LR = 0x01B80C90
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R0 = 0x00000000 R1 = 0x06341CC8 R2 = 0x00000000 R3 = 0x00000001 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R4 = 0x045A18E8 R5 = 0x00008002 R6 = 0x00000000 R7 = 0x0F000000 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R8 = 0x00000000 R9 = 0x01B7AB64 R10 = 0x00000000 R11 = 0x00178298 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R12 = 0x30000003 R13 = 0x0D98279C R14 = 0x00000000 R15 = 0x00000000 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R16 = 0x01E8078C R17 = 0x03C00000 R18 = 0x00000000 R19 = 0x00000000 (QG-BLUECP-3750X-01-1)
Feb 28 04:11
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R24 = 0x045A1BB0 R25 = 0x045A1DCC R26 = 0x00000350 R27 = 0x045A18E8 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: R28 = 0x00008002 R29 = 0x00000001 R30 = 0x045A18E8 R31 = 0x0ED0FAA8 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Stack trace: (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: PC = 0x01B80DAC, SP = 0x06341CC8 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 00: SP = 0x06341CE0 PC = 0x045A18E8 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 01: SP =
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 03: SP = 0x06341DF0 PC = 0x01E80790 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 04: SP = 0x06341E10 PC = 0x01E80E5C (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 05: SP = 0x06341E58 PC = 0x01E7DB4C (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 06: SP = 0x06341EC0 PC = 0x022DF73C (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 07: SP = 0x06341F20 PC = 0x022E00E8 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 08: SP = 0x06341F40 PC = 0x022E0218 (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: Frame 10: SP = 0x00000000 PC = 0x028478FC (QG-BLUECP-3750X-01-1)
Feb 28 04:11:28.778: %PLATFORM-1-CRASHED: (QG-BLUECP-3750X-01-1)
Mar 3 08:38:41.986: %SYS-5-PRIV_AUTH_FAIL: Authentication to privilege level 15 failed by admin on vty0 (10.191.6.1)
The following files were created in flash...
QG-BLUECP-3750X-01-1#dir
Directory of flash:/crashinfo_ext/
475 -rwx 329296 Feb 27 2014 23:41:04 +00:00 crashinfo_ext_1
476 -rwx 260421 Feb 28 2014 03:07:18 +00:00 crashinfo_ext_2
477 -rwx 320129 Feb 28 2014 03:12:33 +00:00 crashinfo_ext_3
478 -rwx 290248 Feb 28 2014 03:16:54 +00:00 crashinfo_ext_4
479 -rwx 284496 Feb 28 2014 03:21:18 +00:00 crashinfo_ext_5
480 -rwx 65 Feb 28 2014 03:25:34 +00:00 crashinfo_ext_6
481 -rwx 276767 Feb 28 2014 03:29:52 +00:00 crashinfo_ext_7
482 -rwx 271592 Feb 28 2014 03:34:18 +00:00 crashinfo_ext_8
483 -rwx 65 Feb 28 2014 03:39:26 +00:00 crashinfo_ext_9
484 -rwx 65 Feb 28 2014 03:43:49 +00:00 crashinfo_ext_10
485 -rwx 65 Feb 28 2014 03:48:14 +00:00 crashinfo_ext_11
486 -rwx 65 Feb 28 2014 03:52:33 +00:00 crashinfo_ext_12
487 -rwx 65 Feb 28 2014 03:56:47 +00:00 crashinfo_ext_13
488 -rwx 65 Feb 28 2014 04:01:29 +00:00 crashinfo_ext_14
489 -rwx 65 Feb 28 2014 04:06:30 +00:00 crashinfo_ext_15
57671680 bytes total (13599744 bytes free)
QG-BLUECP-3750X-01-1#cd ..
QG-BLUECP-3750X-01-1#cd crashinfo
QG-BLUECP-3750X-01-1#dir
Directory of flash:/crashinfo/
491 -rwx 1761 Mar 1 1993 00:00:08 +00:00 crashinfo_1
492 -rwx 1446 Mar 1 1993 00:00:08 +00:00 crashinfo_2
493 -rwx 1761 Mar 1 1993 00:00:08 +00:00 crashinfo_3
494 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_4
495 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_5
496 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_6
497 -rwx 1761 Mar 1 1993 00:00:08 +00:00 crashinfo_7
498 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_8
499 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_9
500 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_10
501 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_11
502 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_12
503 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_13
504 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_14
505 -rwx 1671 Mar 1 1993 00:00:08 +00:00 crashinfo_15
57671680 bytes total (13599744 bytes free)
The second switch took over as the stack master as expected...
QG-BLUECP-3750X-01#sh switch
Switch/Stack Mac Address : 4403.a727.4980
H/W Current
Switch# Role Mac Address Priority Version State
1 Member 6c41.6a05.c780 15 1 Ready
*2 Master 4403.a727.4980 1 1 Ready
I have attached the crashdump files from flash1 that I listed above.
Is it possible for anyone to decode why the switch crashed both initially and then repeatedly when trying to come back up.
btw, It has been up for three days now since these events, but I would like to get to the root cause.
Many thanks
SteveHi,
It will be hard for someone on this forum to have the proper tools to the decode the crash files, that said my suggestion will be to reach out TAC for the proper assistance.
Regards, -
Switch 2 was removed from stack unexpectedly and again joined stack
Hello,
we have 2 switches in stack, last night switch 2 was removed from stack and got rebooted and again it got back in stack.
Switch -2 entered into the provisioned mode for certain span of time. snap shot is attached .
Apr 9 02:36:25.266 IST: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state DOWN
Apr 9 02:36:25.837 IST: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack
Apr 9 02:36:27.850 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to down
Apr 9 02:36:27.850 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/3, changed state to down
Apr 9 02:36:27.850 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/4, changed state to down
Apr 9 02:36:27.850 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/5, changed state to down
Apr 9 02:36:28.857 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down
Apr 9 02:36:28.857 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/3, changed state to down
Apr 9 02:36:28.857 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/4, changed state to down
Apr 9 02:36:28.857 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/5, changed state to down
Apr 9 02:48:37.111 IST: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state UP
Apr 9 02:49:08.048 IST: %STACKMGR-4-SWITCH_ADDED: Switch 2 has been ADDED to the stack
Apr 9 02:49:20.170 IST: %STACKMGR-5-SWITCH_READY: Switch 2 is READY
Apr 9 02:49:20.170 IST: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to state DOWN
Apr 9 02:49:20.170 IST: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 2 has changed to state UP
*Mar 1 00:01:02.738: %STACKMGR-4-SWITCH_ADDED: Switch 1 has been ADDED to the stack (Switch-2)
*Mar 1 00:01:02.738: %STACKMGR-4-SWITCH_ADDED: Switch 2 has been ADDED to the stack (Switch-2)
*Mar 1 00:01:07.024: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan (Switch-2)
*Apr 9 02:49:18.979 IST: %SYS-6-CLOCKUPDATE: System clock has been updated from 21:19:18 UTC Wed Apr 8 2015 to 02:49:18 IST Thu Apr 9 2015, configured from console by console. (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:19.382 IST: %SYS-5-CONFIG_I: Configured from memory by console (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:19.482 IST: %STACKMGR-5-SWITCH_READY: Switch 1 is READY (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:19.818 IST: %STACKMGR-5-MASTER_READY: Master Switch 1 is READY (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:20.053 IST: %STACKMGR-5-SWITCH_READY: Switch 2 is READY (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:20.178 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback99, changed state to up (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:20.178 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback999, changed state to up (Cochin-GMSC-SWTCH-2)
*Apr 9 02:49:20.321 IST: %SYS-5-RESTART: System restarted -- (Cochin-GMSC-SWTCH-2)
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(44)SE2, RELEASE SOFTWARE (fc2) (Cochin-GMSC-SWTCH-2)
Copyright (c) 1986-2008 by Cisco Systems, Inc. (Cochin-GMSC-SWTCH-2)
Compiled Thu 01-May-08 15:00 by antonino (Cochin-GMSC-SWTCH-2)
Apr 9 02:49:24.222 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to up
Apr 9 02:49:24.264 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/3, changed state to up
Apr 9 02:49:24.281 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/4, changed state to up
Apr 9 02:49:24.314 IST: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/5, changed state to up
Apr 9 02:49:25.228 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up
Apr 9 02:49:25.270 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/3, changed state to up
Apr 9 02:49:25.287 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/4, changed state to up
Apr 9 02:49:25.321 IST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/5, changed state to up
Apr 9 02:49:39.959 IST: %PLATFORM-6-MODULE_INSERTED: TwinGig Converter module inserted in slot 1 in Switch 2 (Cochin-GMSC-SWTCH-2)
Apr 9 02:49:42.106 IST: %PLATFORM-6-MODULE_INSERTED: TwinGig Converter module inserted in slot 2 in Switch 2 (Cochin-GMSC-SWTCH-2)
Switch 02
Switch Uptime : 5 hours, 38 minutes
Base ethernet MAC Address : 00:23:04:19:9A:00
Motherboard assembly number : 73-10313-11
Motherboard serial number : FDO12320AH4
Model revision number : A0
Motherboard revision number : A0
Model number : WS-C3750E-24TD-SD
Daughterboard assembly number : 800-28590-01
Daughterboard serial number : FDO123305QU
System serial number : FDO1234V07K
Top assembly part number : 800-28443-01
Top assembly revision number : A0
Version ID : V01
CLEI Code Number : COMVC00ARA
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(44)SE2, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 01-May-08 15:00 by antonino
Image text-base: 0x00003000, data-base: 0x02000000
Please help to find reason behind this unexpected reboot.
Regards
Jatinderwhat is use of session 2 command ,is this service impacting command
sh ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(44)SE2, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 01-May-08 15:00 by antonino
Image text-base: 0x00003000, data-base: 0x02000000
ROM: Bootstrap program is C3750E boot loader
BOOTLDR: C3750E Boot Loader (C3750E-HBOOT-M) Version 12.2(35r)SE1, RELEASE SOFTWARE (fc2)
******* uptime is 11 weeks, 2 days, 8 hours, 40 minutes
System returned to ROM by power-on
System restarted at 01:41:48 IST Wed Jan 21 2015
System image file is "flash:c3750e-universalk9-mz.122-44.SE2/c3750e-universalk9-mz.122-44.SE2.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
[email protected].
License Level: ipbase
License Type: Permanent
Next reload license Level: ipbase
cisco WS-C3750E-24TD (PowerPC405) processor (revision A0) with 0K/16376K bytes of memory.
Processor board ID FDO1234V07J
Last reset from power-on
3 Virtual Ethernet interfaces
1 FastEthernet interface
56 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 00:22:BE:95:35:80
Motherboard assembly number : 73-10313-11
Motherboard serial number : FDO12340H8F
Model revision number : A0
Motherboard revision number : A0
Model number : WS-C3750E-24TD-SD
Daughterboard assembly number : 800-28590-01
Daughterboard serial number : FDO123305LA
System serial number : FDO1234V07J
Top Assembly Part Number : 800-28443-01
Top Assembly Revision Number : A0
Version ID : V01
CLEI Code Number : COMVC00ARA
Hardware Board Revision Number : 0x01
Switch Ports Model SW Version SW Image
* 1 30 WS-C3750E-24TD 12.2(44)SE2 C3750E-UNIVERSALK9-M
2 30 WS-C3750E-24TD 12.2(44)SE2 C3750E-UNIVERSALK9-M
Switch 02
Switch Uptime : 1 day, 7 hours, 35 minutes
Base ethernet MAC Address : 00:23:04:19:9A:00
Motherboard assembly number : 73-10313-11
Motherboard serial number : FDO12320AH4
Model revision number : A0
Motherboard revision number : A0
Model number : WS-C3750E-24TD-SD
Daughterboard assembly number : 800-28590-01
Daughterboard serial number : FDO123305QU
System serial number : FDO1234V07K
Top assembly part number : 800-28443-01
Top assembly revision number : A0
Version ID : V01
CLEI Code Number : COMVC00ARA
License Level : ipbase
License Type : Permanent
Next reboot licensing Level : ipbase
Configuration register is 0xF -
3750X stack with broken 715W power supply
I have a stack of 2 WS-C3750X-48P 15.0(2)SE6 C3750E-IPBASEK9-M
Each switch has two 715W power supplies.
It happened one power supply is broken and stuck all stack. Why ?
Thanks to all
AlbertoHi Charles, yes the 2 switches act like one stand alone sw
Switch 1 connected to Switch 2
and with the second cable,
Switch 2 connected to Switch 1
There are no stack power cables.
IOS c3750e-ipbasek9-mz.150-2.SE6.bin
Log now is 000455: Apr 21 11:00:31.065 UTC: %PLATFORM_ENV-1-FRU_PS_ACCESS: FRU Power Supply is not responding
I have only one electrical line to the rack
The problem is that a broken power supply caused to switch off all the rack.
In fact the master electrical switch of all the rack went down.
Last 3 months the same problem happened twice to two different stacks.
Is it possible a firmware bug ?
Tell me if you need further info. Thanks a lot
Alberto -
3750 and Provisioning a Switch to become Member of Stack
Since the documentation does not make it clear imo - I assume when preparing a switch to join an existing stack, the provision command must be applied to the master, and not on the switch to be added?
thanks
Ajaz NawazStack Offline Configuration
You can use the offline configuration feature to provision (to configure) a new switch before it joins the stack. You can configure the member number, the switch type, and the interfaces associated with a switch that is not yet part of the stack. That configuration is the provisioned configuration. The switch to be added to the stack and to get this configuration is the provisioned switch.
The provisioned configuration is automatically created when a switch is added to a that is running Cisco IOS Release 12.2(20)SE or later stack and when no provisioned configuration exists. You can manually create the provisioned configuration by using the switch stack-member-number provision type global configuration command.
When you configure the interfaces for a provisioned switch (for example, as part of a VLAN), the information appears in the stack running configuration whether or not the provisioned switch is part of the stack. The interface for the provisioned switch is not active and does not appear in the display of a specific feature (for example, in the show vlan user EXEC command output). Entering the no shutdown interface configuration command has no effect.
The startup configuration file ensures that the stack can reload and can use the saved information whether or not the provisioned switch is part of the stack.
yes thanks. I have read all the documentation as I stated in my original post.
so Reza... perhaps you can explain from the link you posted where does it make it clear that the provision command must be configured on the master of existing stack, or switch yet to be provisioned ??? -
2960S PoE switch into a non-PoE stack
I have two 2960 Stacks
Stack # 1 is a PoE stack with two WS-C2960S-48FPD-L with TenGig uplinks running c2960s-universalk9-mz.152-1.E.bin.
Stack #2 is Non PoE stack with three WS-C2960S-48TS-L running c2960s-universalk9-mz.150-2.SE2.bin.
I need to add an WS-C2960S-24PS-L for additional PoE port capacity. If I add it to Stack #1 I will have three switches in both stacks, and all PoE switches will be part of the same stack. I am just wondering If I can have disparate switch models in the same stack running the same IOS? If I add the new WS-C2960S-24PS-L to Stack #2 I will end up making this stack a 4 switch stack with three non-PoE switches and one PoE switch. If I add the PoE switch to this stack will I have access to the PoE capabilities of that one switch. Again with the question can I have disparate switch models in the same stack running the same IOS?I am just wondering If I can have disparate switch models in the same stack running the same IOS
Yes. You can have a different models of 2960S in a single stack. The main important thing is all members of the stack should have the same IOS version. -
Hi,
I have a customer who is having 3750X Switch with IP Base Image.They are planning to add a new switch and these two switches will be stacked.
Could you please recommend a cost effective switch that can be stacked with existing 3750X Switch(IP Base Image).And also what all modules i need to add other than stacking cable?
RegardsDisclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Do i need to order network module (C3KX-NM-1G) to stack two 3750X Switch other than stacking cable?
No. The network module, in the -X series, it to allow differ uplink ports.
What you might need to order it a stacking cable of a longer length. From Cisco, stacking cables come in three lengths. Don't know if still true, but it used to be, I believe, that a 3750 would come standard with the shortest stacking cable which is long enough to go between nearby units when physically stacked vertically together. In larger physically stacks, you would often need to order the longer cable to go between top and bottom stack units. -
A Cisco Stack 3750X switch report the following error message:
%UTIL-3-TREE: Data structure error--attempt to remove an unthreaded node from a tree.
every minute +-20 sec
Cisco IOS Software, C3750E Software (C3750E-IPBASEK9-M), Version 15.0(2)SE4, RELEASE SOFTWARE (fc1)
analog bug: https://tools.cisco.com/bugsearch/bug/CSCsz93221WS-C3750G-24PS-E C3750-IPBASEK9-M version 12.2(53)SE2
After implementing 802.1x with Avaya IP phones
%UTIL-3-TREE: Data structure error--attempt to remove an unthreaded node from a tree
Port then fails authentication and goes into vl-err-dis -
Macbook Pro switches order of letters when typing fast
Attention: If you seem to make more mistakes when typing on a macbook pro, it's probably not your fault. Letters get switched around.
This is a problem that has been exhibited in macbook pros as early as 2007 and still apparent today. I could never prove for sure it wasn't me making the mistakes, but today I came up with a consistent test case to prove I'm right. Right now using macbook pro retina display. I noticed this today when every time I typed the word "front" it would come out wrong and I'd have to correct it.
How to reproduce:
-In an extremely swift, rolling motion (lasting no more than a tenth of a second), type the letters "fron". The left index finger goes on the f, the left middle finger goes on the r, the right ring finger goes on the o, and the right index finger goes on the n. Since all the fingers are different, it is easy to type the 4 letters extremely fast. You might notice that conventionally the left index finger is supposed to type the letter "r", but people who are good at typing always subconsciously make small adjustments to fingering which improve typing speed/efficiency, so this is a common practice. In this case, I always automatically use my left middle finger for the r in "front" without even thinking, because optimization of typing speed has become second-nature to me, just like you would type "lol" with two fingers rather than cumbersomely all 3 letters with the right ring finger.
-The fingers should all stay on the keys and keep them depressed throughout this 1/10 of a second typing motion; this is very common in fast typing and has never been an issue in other computers (it would be ludicrous to expect fast typers to meticulously lift their finger up after every letter and make sure there were never 2 keys depressed simultaneously. If there is ever any overlap between keys being pressed, the key that was pressed first should appear first on the screen, not randomly jumbled order)
-You will notice that even though your fingers landed in the order of "fron", what comes out is usually "fnor" or may even be missing some letters.
-This is reproducible while typing inside any applicationThat is normal. You have to keep objects that have magnets out pf the palm rest area of the computer.
From Apple:
Macbook Pro goes to sleep when stacked.
“Placing a device that contains a magnet (such as an iPhone) under your computer or on its palm rests can cause the computer to sleep unexpectedly. This can also appear to cause the computer to have difficulties starting up”.
http://support.apple.com/kb/TS2917
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