I was thinking of upgrading the IOS of a number of c3750 stack (roughtly about 50-100 stacks around the country)...I would like to know is this feasible?
My CiscoWork NMS is connected with a low bandwidth (2Mbps) management link. I was thinking if I upgrade via CW2k, then RME will take "ages" to push the IOS to the stack, right? Is this feasbile for 100+ stack of switches?
Is it possible to upgrade a c3750-stack one member at a time to avoid downtime? I need to keep L3-functionality up.
If I have one etherchannel from access-switch (2 channel-ports in 3750, in different stack-members), my 3750-stack as a distribution layer switch, and another etherchannel (also spread over multiple stack members) to core, can I upgrade the entire stack without traffic interruption?
I have 2 switches c3750 which I want to install in stack to replace two Nortel switch that I have in production.
When connecting my new stack of cisco switches to a cisco router c3750 to 2600, they begin to restart by itself. I mean, There is a cisco router 2600. which I want to connect to the stack of switches. The problem is that when the switches connect to the router it begins to restart.
If you need to see the running config of the cisco Switches or the 2600 router.
We have existing stack of 3 units of WS-C3750-48TS-S ( 100 mbps ports with Gigabot uplinks). with IOS as follows, Can we add WS-C3750G-48PS-S in this same stack (this is 48 Gigabit ports)?
View 2 Replies View RelatedAccording to cisco manual in order to change SDM template i need to reboot switch, but when i have C3750-X stack do i need to reboot stack or maybe will be enough reboot in sequence the stack members?
View 3 Replies View RelatedI have 3 ws-c3750-48ps in a stack and i'd like to enable dot1x on the stack I entered the commands: [code] I also have dot1x enabled on several interface on the 2nd and 3rd switches in the stack with these commands [code] dot1x successfully works on these ports and I see the logs in acs, heres where the problem comes in when i try to enable dot1x using the above commands on any interface on the first switch in the stack it doesn't work its like the switch doesn't support dot1x. I'm assuming that there is a bug in version 3 but after googling I didn't come up with much.
View 6 Replies View Relatedcan i stack cisco (ws-c3750G-12s) with (ws-c3750X-24p-poe-s) with (ws-c3750-48p-10/100 poe) i mean even a switch is 10/100 and the other switch is 10/100/1000?
View 3 Replies View Relateda) I have three C3750-X switch stack together as my SAN switch and running on the new 15.0 release which is 15.0(1) SE.
b) Recently the master switch rebooted without any explanation. Create ticket with TAC and got an answer that it is due to a bug with ID: CSCtr31957.
My question is, which release that should i choose either the 15.0(1) SE3 or the latest 15.0(2)? Will it affect any of my configuration if i change to 15.0(2)?
Finally, what is the best practice to upgrade IOS in a stack whether to upgrade it 1 switch at a time or do it to all at once?
Is that possible add WS-C3750-48TS-E to ws-c3750e-48td stack?
View 4 Replies View RelatedI have 8 switch stack consisting of six WS-C3550-48P and two WS-C3750G-16TD running software vesrion 12.2(25) SEB1. When I added new C3750v2-24PS (running image 12.2(50) SE5) in stack so I up-graded the image of existing 8 switches with latest veriosn 12.2(50) SE5. Once I have done with the upgrade then all ports of my stack switches went down after around five minuts. Is it image compatibility issue with existing switches or something else?
View 7 Replies View RelatedWe have WS-C3750-24FS switches stacked supporting users on our LAN. I want take advantage of the netflow capabilities of the WS-C3750X using the C3KX-SM-10G card.
Would I be to see netflow data coming from the WS-C3750's if I stacked it with the WS-C3750X?
Also I read that the C3KX-SM-10G card would support a 1G SFP is that correct?
I am having an issue on a Cisco 3750 stack where when the stack master is rebooted, all my lacp port-channels drop and then come back up again. After doing some investigation It seems that it is happening because of lacp using the stack master mac-address as part of the system-id, so when the stack master reboots, the stack mac changes. I see that there is the command: stack-mac persistent timer 0
There is this warning about using this command:
When you configure this feature, a warning message displays the consequences of your configuration. You should use this feature cautiously. Using the old master MAC address elsewhere in the domain could result in lost traffic.
My question are:
Are there any other consequences to using this command (apart from moving the switch/mac to another location in the network)It mentions 'If the entire switch stack reloads, it acquires the MAC address of the master as the stack MAC address' Is this still the case if you have the stack-mac persistent timer to 0? Does using channel-group mode on for the port-channels still use the same mechanism of having a system-id? (Will the channels flap using 'mode on' when rebooting the stack master.
I am not on site and I have not seen a WS-C3750V2-24PS-S. Customer has a stack of 6 x WS-C3750V2-24PS-S and one unit has failed. We do not have a WS-C3750V2-24PS-S spare. Can we replace it with a standard WS-C3750-24PS-S (not V2) switch and be part ofthe stack.
1. Are there any traps gotchas?
2. What about IOS versions - aren't they different for V2 switches
3. Are the stack ports and stack cables same for both WS-C3750V2-24PS-S and WS-C3750-24PS-S
4. What is the main reason for bringing out the V2 switches. What features do they have extra?
Ciscowork 3.2.1 daemon manager is not working after patch installation
View 2 Replies View RelatedCiscowork 3.2.1 daemon manager is not working after patch installation.
C:Documents and SettingsAdministrator>net start crmdmgtdThe CiscoWorks Daemon Manager service is starting.The CiscoWorks Daemon Manager service could not be started. The service did not report an error. More help is available by typing NET HELPMSG 3534.
Also I checked syslog.log and it is showing below error an 17 14:39:34 127.0.0.1 100: <28> dmgt[1316]: 2507(W):Daemon manager anonymous user has not been set up: 00000569
I am trying to use Ciscoworks LMS3.2 with RME 4.3.1. to upgrade many, many Cat3750x stacks we have laying around. The problem I am having is that Ciscoworks downloads the new image to the Stack’s master switch only and not to all switches. When I reload the stack after the download, any switch could become the master. I already set up the priority to always have the same master, but the process is unreliable and more than once I ended up with another switch as a master. In any case if the master is not the switch with the new image, the stack will keep the old image as their running image and the switch with the newer image has problems joining the stack (after a while it downgrades and become stable)I know how to do it manually, but I was hoping Ciscoworks would be able to do this for me. It would make my life much easier.
View 1 Replies View RelatedI have 4 switches of 3750. I need toupgrade all the switches, but I can't to disconnect the stack cable.How I can to upgrade the version without to disconnect the stack cable?
View 2 Replies View RelatedI'm trying to upgrade the IOS ver on a 3750G stack (2 switches), but the img on the switch is too old.The stack is running IOS c3750-i9-mz.121-19.EA1d.bin, and when I tried to upgrade to a newer version, I tried to go to IOS ver c3750-advipservicesk9-mz.122-35.SE5.bin since I need to enable ssh on the switch, but the switch did not reload.
Here's a prtscreen of the switch ver:
Cisco Internetwork Operating System Software
IOS (tm) C3750 Software (C3750-I9-M), Version 12.1(19)EA1d, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Mon 05-Apr-04 22:40 by antonino
Image text-base: 0x00003000, data-base: 0x007CBC3C
[code]...
what IOS ver can I upgrade to that is not already deferred?
I'm trying to use LMS to upgrade a stack of switches that have 1 or more 3750x's and other 3750's. In Software Distribution, if I choose Distrube to devices, basic, it finds the x switch, which is the master but says the others are not candidates. I don't see a place where I can tell it it is a mixes stack and choose multiple IOS's.
View 2 Replies View RelatedSwitch 2 has an interface configured in RSU Standby.Switch 3 has an interface configured in RSU active. The upgrading sequence is : Switch 2, Switch 1, Switch3.The aim of the test is to prove that there is no loss of IP connectivity throught the RSU process.During the RSU process, there are ping between all the computers.
IOS starting version : 15.0-1.SE3
IOS upgrading version (with OVERWRITE) : 15.0-1.SE3 (same version)
1rst step : Switch 2 reboot and come back master but isolated from original stack (switch 1 and 3)
2nd step : Switch 1 reboot, and come back with switch 2 into the upgrading stack.
Issue : at this step :
- Switch 1 put its interface (IP 192.168.5.254) up :
- Switch 3 has not reboot and still has its interface (IP 192.168.5.254) up
=> we have some OSPF adjencies and mac flapping issues : switch 1 and 3 are trying to mount there OSPF adjencies on the same IP. We loss our IP connectivity since step 3 is not over.
3rd step : Switch 3 reboot and come back up in the upgrading stack. The IP connectivity is back, and the RSU process is done.Is that a normal behaviour ?How can we avoid to loose IP connectivity during RSU process ?
IOS upgrade tried on the stack of 2XWS-C3750X-24T-S , Upgrade was tried to support WCCP on the platform. Current version is Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(58)SE1, Not able find any IP Plus ios in the site ? Only available are IP base and Universal K9 , Tried upgrading to c3750e-universalk9-tar.122-58.SE2.tar by using stack upgrade method as per document [URL]
Upgrade fails with error :
%Error opening flash:update/info (No such file or directory)
ERROR: Image is not a valid IOS image archive.
Why current ios is not supporting WCCP , I hope it is there in the featureset. ( tried "sdm prefer routing" but no success) Does c3750e-universalk9-tar.122-58.SE2.tar will give me wccp support ? What is the issue with my upgrade and how do I do a successfull upgrade ?
Zero downtime 3750 stack upgrade?
View 1 Replies View RelatedI was just curious about something with upgrading a 2960s stack.
To copy the image to the switches in the stack I use: Switch# archive download-sw tftp://x.x.x.x/filename
Does this also set the image as the boot image or do I still need to issue the boot system flash command?
can I just issue this command on the master switch and reload and the new config will be pushed to the rest of the switches?
Zero downtime 3750 stack upgrade
View 3 Replies View RelatedI am trying to do ios upgrade on 5 stacked 3750 switches. All the switches have different model number, so i am wondering which image file i should download. As far as i understand all the stacked switches should have the same IOS, i may be wrong. The switches have the following model numbers and SW images;
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
1 28 WS-C3750G-24PS 12.2(35)SE5 C3750-IPSERVICESK9-M
* 2 28 WS-C3750G-24PS 12.2(35)SE5 C3750-IPSERVICESK9-M
3 52 WS-C3750G-48PS 12.2(35)SE5 C3750-IPSERVICESK9-M
4 30 WS-C3750E-24PD 12.2(35)SE5 C3750E-UNIVERSAL-M
5 30 WS-C3750E-24PD 12.2(35)SE5 C3750E-UNIVERSAL-M
which image file i should use as they all have different model numbers and Cisco provides different image files for each model.
I want to upgrade the IOS version of 3750 48PS switches. these stacks are located on different building some of the them having 2 members and some have 3 members in a stack.step by step to upgrade the IOS of these switches.
View 1 Replies View Relatedapplied an iOS update to a stack via tftp. I used the archive Download-sw tftp:// method. I rebooted the stack after complete and it never came back up. I discovered the master switch upgraded but not the member. The member was sitting there with all amber lights on and frozen after the iOS load. The master wouldn't finish boot until I removed the member from the stack. I had a version mismatch and they would not communicate.
View 2 Replies View RelatedI have Cisco Catalyst Stack structure that consist of;
3750E-48TD-S (MASTER) (UNIVERSAL Image)
3750G-48TS-S (IPBASE Image)
3750G-48TS-S (IPBASE Image)
3750G-48TS-S (IPBASE Image)
I want to upgrade their IOSs to k9 images.
I can not dowload Universal Image file from Cisco website because of the expired service contract. I have IPBASE IOS files for all switches,
Can it be a problem to upgrade master switch IOS from Universal to IPBASE image?
I want to run rolling-stack upgrades on several stacks containing Catalyst 3750X-switches. I have done as follows: Configured the redundant uplinks as active and stand-by.Started to upgrade by using archive download-sw /rolling-stack-upgrade /overwrite /reload The upgrade starts as expected BUT switch number 2 in the stack is reloaded BEFORE switch 1 is finnished, the result is of course downtime for the stack. The documentation says something about the command "boot time", but what is this command doing? The default seems to be 7 minutes, it this parameter the time the upgrade-process waits before booting the next switch in the stack? I would expect that switch number 2 is reloaded when switch 1 is up again after reload, and not after an absolute number of minutes, is the rolling-stack-upgrade not working this way ?
View 4 Replies View RelatedI have 2 Catalyst 2960S-switches configured in a stack. The uplink is configured as a cross-stack etherchannel. Now I want to upgrade the stack with a minimum of downtime for the connected hosts. The hosts are connected to the stack via cross-stack etherchannels. So my question is: How can I upgrade the stack and reboot the members with a minimum of downtime? If I use the archive download-sw command with the /reload-option, the stack is reloaded and the result will be downtime for the hosts while th stack is reloading. Is it possible to upgrade the stack and then reboot the members one by one in a controlled manner?
View 8 Replies View RelatedThis feature doesn't work as advertised on the Release Notes and other documentation. After 12 hrs of lab work and a tlwo day support call to TAC, they finally came back to me that:
IOS Upgrade works well if you use the command force-reload, without force-reload, it won't work. --"of course with this command the complete stack will go down and the purpose of RSU will not serve"
Then they pointed me to a bug that I could not find in the bug tracker unless I searched by the bug ID number ?? CSCua78897
Unfortunately this bug has a closed status and is not slated to be fixed ?
7x stack WS-C3750E-48TD-E orignal code 12.2.35...i wanted to get it to 15.0.1 so as a test i disconnected top switch (not the master ) and installed via archive download-sw /allow upgrade 15.0.1.tar. and it worked away fine...
so i moved onto the stack, issued the same command, image loaded rebooted and stack hung..Consoled in and switch was unable to boot..looping on trying to load flash. [code]
Are there issues with the auto upgrade feature for 3750X stacks, either historically or currently?
Some people prefer to upgrade switch stacks manually by disconnectiong the stack cables and uprading code on each switch.
I've done the manual procedure in the past and have not tried the auto upgrade (I have the procedure for the auto upgrade).