Cisco Switching/Routing :: Mixed 3750-X And 3750G In A Stack?

Jul 17, 2012

Any one try to form a stack with mixed 3750-X and 3750G? Is there any prerequisites in hardware and software?

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Cisco Switching/Routing :: Upgrading Firmware On Mixed 3750G And 3750X Stack

Jul 3, 2012

I've got a mixed stack as follows:

Switch 1 - 3750X-24P
Switch 2 - 3750G-24TS
Switch 3 - 3750G-24T
 
Running 12.2(53)SE2, IP base.  Now I tried upgrading the firmware on the entire stack to 12.2(55)SE4 and ran into this error:(Command: archive download-sw /imageonly /overwrite /allow-feature-upgrade tftp://10.20.20.13/c3750e-universalk9-tar.122-55.SE4.tar)
 
 Error: The image in the archive which would to used to upgade system number 2 does not support that system type.I haven't as yet removed the "3750G-24TS" switch from the stack and re-tried as yet, however, is the expectation that without the 24TS, the upgrade should work?

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Cisco :: LMS 4.2.2 3750x And 3750 Mixed Stack Upgrade

Oct 10, 2012

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.

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Cisco WAN :: Mixed Feature Sets In 3750 Stack - Fully Supported?

Jun 21, 2011

What is supported in terms of running a mixed feature set in a Cisco 3750 switch stack.We are looking at setting up a stack consisting of 5 x 3750V2 and 2 x 3750G. Due to a requirement for full EIGRP we need the IP Services feature set. Is it a supported configuration to run with 2 or 3 switches running the IP Services feature set as stack masters and the others running IP Base? I understand that if stack master priorities were set these switches with the higher feature set could manage the stack and offer IP Services accross the stack. If we were to lose all of the switches running IP Services the stack would drop back to IP Base.I am looking for guidance as to if this is a supported configuration and not in breach of licensing? Is this likely to cause any problem other than above now and for future IOS releases?

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Cisco Switching/Routing :: Is It Possible To Stack A 3750G And 3750X

May 26, 2011

I have a 3750G and bought a new 3750X.  It possible to stack these two together?

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Cisco Switching/Routing :: 3750G Won't Join A Stack

Jan 29, 2013

I have a 3750G switch that can't detect another switch or be detected through its stack ports. I tried the recommended test; looping a cable between the ports and rebooting. I get the following message as the switch boots: SM:  Detected stack cables at PORT1 PORT2. However, if I connnect another switch, it won't detect it and can't form a stack.

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Cisco Switching/Routing :: Upgrade IOS On A 3750G-24T Stack?

Feb 20, 2012

I'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?

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Cisco Switching/Routing :: Switch 3750G Stack

Jun 17, 2012

have one 3750G stack with 4 switches and this stack is presenting the follow log message:
 
%PLATFORM_UCAST-4-PREFIX:  One or more, more specific prefixes could not be programmed into TCAM and are being covered by a less specific prefix, and the packets may be software forwarded.
 
In this stack we are using the layer 3 with OSPF routing, and the current sdm prefer is default:
 
switch-01-3750#sh sdm prefer
The current template is "desktop default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.(code)

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Cisco Switching/Routing :: 3750G Stack Slow Performance

Nov 19, 2012

I am currently having performance issues running a 3 x stack 3750G (different models) as a core for a network of roughly 12 x distribution switches. [code] As above, I have a 12 port Fibre switch and 2 x 3750G-48 port switches. [code] I tried to change the SDM to route but hit another issue where the 3750g-48 does not support SDM route so I had to revert back to desktop VLAN.Could the SDM Template be the reason for slow performance? If so which SDM Template should i use as this is the Core L3 switch.

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Cisco Switching/Routing :: Stack 3750G-12S-S With 3750X-48T Switch?

Apr 14, 2012

if we can stack the 3750G switch with a 3750X switch ?

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Cisco Switching/Routing :: Adding 3750X To 3750G Stack?

Jun 13, 2012

Our customer has a stack of 6 3750G switches.  They want to add another switch to the stack.  I tried to quote another G, but I got a warning that the G series is EOS January 30,2013.  Can I add a 3750X to the stack?  I know that no matter what switch I get, I will have to upgrade the IOS in the stack, as the stack is running 12.2(25)SEE2. 

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Cisco Switching/Routing :: Difference Between Stack 3750G And 3750X?

Jul 15, 2012

I have a cisco WS-C3750G-24TS with IOS flash :/ c3750-mz.122-ipservicesk9-25.SEB4.bin "
 
I purchased a new Cisco WS-C3750X-24 with the IOS flash :/ c3750e-universalk9-mz.150-1.SE/c3750e-universalk9-mz.150-1.SE.bin. ( NEW )
  
When i configured a stack between the two 3750,  the new switch restarted due the version mismatch (different IOS´s);
 
 We have two versions: 
 
WS-C3750G-24TS-ipservicesk9 flash :/ c3750-mz.122-25.SEB4.bin "
  
VS
 
WS-C3750X-24 flash :/ c3750e-universalk9-mz.150-1.SE/c3750e-universalk9-mz.150-1.SE.bin.
  
Is that possible to configure a stack between then?
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Tenho  um cisco WS-C3750G-24TS com o IOS flash:/c3750-ipservicesk9-mz.1
22-25.SEB4.bin"
Adquiri  um novo cisco WS-C3750X-24 com o IOS flash:/c3750e-universalk9-mz.150-1.SE/c3750e-universalk9-mz.150-1.SE.bin.

[code]...

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Cisco Switching/Routing :: 3750G - Stack Switching Priorities Not Correct

Mar 21, 2012

I got Two Distribution Switches of Cisco 3750G. Each Distribution have two 3750G switches stacked. I also have one Cisco 3750V2 Access Switch connected to both Distribution. When I am checking for redundancy, I can only get redundancy test pass for one link not atall for other. If I have a link up with Distribution 1 only then its fine; but disappointment with Distribution 2 link. I can see that the switch priorities of Dist 2 is not correct ie. Master's priority is 10 and Member's is 15.
 
My question is that due to misconfigured priorities on Distribution 2 stack switches I am failing with redundancy if ONLY Dist 2 is up and Dist 1 is down.

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Cisco Switching/Routing :: 3750G Spanning Tree On New Switch Stack

Nov 3, 2011

I am about rip and replace my current 3750G stack with a 3750X stack. I have trunked over vlan and vtp info and implemented a config so it should be ready to go other then moving cables onto it. However one thing I want to correct with our current setup is that the root bridge on our vlans including vlan 1 is on a separate set of switches that we control, however I would like this new stack to be the root bridge for all of our vlans. It will be the central set of switches that all other switches trunk into.  I have pre-set higher spanning-tree priorities for each vlan on the new stack so I expect as I move lines into it that the tree will be re-calculated with it as the root bridge. I've ensured that there are no root guards on any of the other switches trunks and priorities are all at default levels for each vlan. Should I enforce root guard on the trunk interfaces of the new master stack?  Most of the trunks are port-channels to the other switches - do I need to set root guard on the Port channel interface or on the individual ports that make up the Port channel? On both? Any other recommendations in regards to implementing spanning-tree with the new stack? I know using port channels eliminates a lot of potential for loops but not every trunk is and I'd still like to have spanning-tree on.

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Cisco Switching/Routing :: Can Stack 3750G-12S-S Switch With 3750E-24TD-S

Apr 22, 2012

Can we stack a 3750G-12S-S switch with a 3750-E-24TD-S switch?

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Cisco Switching/Routing :: EtherChannel Cross-Stack Between 3750g And 4507R?

Oct 23, 2012

I am running out of ports on a 4507R and would like to use a 3750G-24TS stack that I already have to expand capacity. Is it possible to configure EtherChannel between the 4507R and the 3750G stack and if so what is the best way to do it? without LACP, with active-active mode LACP or passive-active mode LACP...
 
This is what I have in mind:On the 4507R side I would like to use interface GigabitEthernet3/5 and interface GigabitEthernet4/5 where modules 3 and 4 on the 4507R are "6 1000BaseX (GBIC) (WS-X4306-GB)". On the 3750G side I would like to use ports 28 on both switches in the stack which are equipped with Cisco GLC-T= 1000BASE-T SFP transceiver module for Category 5 copper wire with RJ-45 connector. [URL] Cross-Stack EtherChannel Without PAgP or LACP should look like this:
 
3750switchstackA(config)#interface gigabitethernet 1/0/28
3750switchstackA(config-if)#channel-group 1 mode on
3750switchstackA(config-if)#switchport trunk encapsulation dot1q
3750switchstackA(config-if)#switchport mode trunk
3750switchstackA(config)#interface gigabitethernet 2/0/28
3750switchstackA(config-if)#channel-group 1 mode on

[code]....

is that what I should be doing? is there any benefit to the active-active mode LACP or passive-active mode LACP and which are applicable to the case above?

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Cisco Switching/Routing :: 3750G Stack-wise Port Error?

Aug 7, 2012

I have a stack of 3750G's where the connection between switch 1 port 1 and switch 2 port 2 are down
 
Stack Port Status             Neighbors
Switch#  Port 1     Port 2           Port 1   Port 2
--------------------------------------------------------
  1       Down        Ok              None       3
  2        Ok        Down                3      None
  3        Ok         Ok                   1        2
 
I have ruled out the stackwise cable as the problem but would like to know which switch has the problem

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Cisco Switching/Routing :: 3750G - Adding Additional Switch And Making It Stack

Feb 29, 2012

I currently have Cisco 3750G which is currently live and active and fully populated and only have remote access.
 
I have an additional same switch which I would like to stack. My initial plans were to have 2 GIbit etherchannels, but I came across the option to Stacks both switch with each other.
 
When I do a show switch on the live switch its set as a Member: [code]

I would like to add the new switch to the stack without losing the config for the switch which is live. I understand that the highest priority of the switches becomes the Master but as the live switch is Priority 1, would chancing this affect the switches config, or would it lose connection at all?
 
Also when I plug in the new switch and it reboot how do I ensure it becomes the slave without rebooting the live switch?The cables on the switch do they have to go to port1 on the live switch and port 1 on the new switch or can they be port 1 and port 2?

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Cisco Switching/Routing :: Adding 3750 To Stack?

Dec 6, 2011

I have two  3750s stacked and one 3750 standalone all in one data closet. The both have the same versions. I want to combine them to make one stack. How do I force the standalone to be the master? sw 1 priority XX(Higher then the existing stack)? Both the stack and the standalone have management addresses. Would it be ok to delete the stack ip address? That way, the standalone(master's address will be the only management address)?How should I connect the standalone 3750 to the stack? At present, the 3750 stack is connected via a cascade cable going from the stack 1 port of the top switch to the stack 2 port of the bottom switch.

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Cisco Switching/Routing :: 3750 Stack Port

May 19, 2013

I have a stack of 4 3750 Switches.
 
1. WS-C3750G-12S
2. WS-C3750G-12S
3. WS-C3750X-48P
4. WS-C3750X-48P
 
The stack cable connected to Switch 1 Port 1 and Switch 4 Port 2 will not come back online. The logs show that there was a Stack line change. I have replaced the 1 meter Stack cable from Switch 1 to Switch 4 three times and it still does not come back online. This is the part that is interesting.. I have disconnected Port 1 Switch 4 and connected it to Port 2 Switch 4 and then Switch 4 came back online. This made me think Port 2 on Switch 4 was working correctly. Then I disconnected Port 2 Switch 1 and connected it to Port 1 Switch 1 and then Switch 1 came back online.

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Cisco Switching/Routing :: 3750 Stack CPU Utilization?

Feb 20, 2013

i have two cisco 3750 in stack firts, master switch have all swports busy second have only 5 how can i see cpu utilizations of the second switch, and its reasonable to move somme devices from first switch to second for deacreases of cpu and memory utilisatio ns of the master? the stack tehnologies use both cpu as one? or its only for simple management ?

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Cisco Switching/Routing :: Stack Port Down On 3750

Mar 11, 2013

have a cable i think is bad, is it possiable to switch the cable out without causing any downtime to the switch or connected devices?
 
HQ-1st-Flr-Stack#show switch stack-ports summary
Switch#/  Stack   Neighbor   Cable    Link   Link   Sync      #         In 
Port#     Port              Length    OK   Active   OK    Changes   Loopback
Status                                          To LinkOK   

[Code].....

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Cisco Switching/Routing :: Upgrading A Stack Of 3750

Apr 29, 2012

I just need a little refreshing on upgrading a stack of 3750's.  This stack only has 2 switches: [code]

1.) If I remember correctly I simply tftp the IOS to the flash of each switch and then reload the master only?
2.) Can I safely assume these are the 2 flash locations:

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Cisco Switching/Routing :: 3750 / Add A New Switch In Stack?

Jun 21, 2012

i want to remove an access layer 3750 48 POE master switch and replace with a  new 3750 switch in the stack. i want to copy the same configuration to new switch since the old switch is having POE issue and I got replacement of the malfunctioned switch. we have VTP domain is configured in the network...

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Cisco Switching/Routing :: 3750 Add A Config To Stack?

Mar 15, 2012

I have been given 2 3750 switches and need to put a config onto it wuld is for 2 3750's in a stack, how should I put this on the 2 switches?  Is it bested to install it onto 1 switch first then physically attach the 2nd after?

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Cisco Switching/Routing :: Add Stack Member 3750?

Jul 10, 2012

One of the stack member has failed and we need to replace the same with the new one.
 
[code],....

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Cisco Switching/Routing :: 3750 12.2(46) WCCP Stack

Nov 21, 2011

I'm setting up a web cache using the wccp protocol on a Catalyst 3750 stack.
 
Probably missing something real simple here but when I from the global configuration mode are trying to enter the ip wccp command it just says "invalid input" from wccp. There is no such command.. should be supported on my device from IOS 12.2(37)

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Cisco Switching/Routing :: Etherchannel Does Not Go Up / Up From 3750 Stack To 6k5 Vss

May 19, 2012

We have two 6k5 configured as vss and it is working fine. For each floor we have a 3750 stack. In each 3750 stack we have 4 switches. From the first 3750 we have a fiber link to the first 6k5 and from the fourth switch we have another fiber link to the other 6k5 switch, for each floor/3750 stack, both configured as etherchannel. We installled each 3750 stack/floor in different maintenance windows; in all these installations we have problems configuring the etherchannel. After we configure the etherchannel on 3750 stack and in the vss, the etherchannel does not go up/up. We see the etherchannel up/down; after a lot off work, try and error, configuring shut/ no shut, adding and excluding links from the etherchannel; in any aleatory moment the etherchannel goes up/up and works fine. Is there any bug related with these IOS versions, or is there any right procedure to configure etherchannel from vss to 3750 stack?

3750 stack config (IOS
Cisco IOS Software, C3750 Software (C3750-IPBASEK9-M), Version 12.2(50)SE1, RELEASE SOFTWARE (fc2))
interface GigabitEthernet1/0/1switchport trunk encapsulation dot1qswitchport trunk allowed vlan 100,101,371,372switchport mode trunkchannel-group 1 mode on!interface GigabitEthernet4/0/1switchport trunk encapsulation dot1qswitchport trunk allowed vlan 100,101,371,372switchport mode trunkchannel-group 1 mode on!interface Port-channel1switchport trunk encapsulation dot1qswitchport trunk allowed vlan 100,101,371,372switchport mode trunk

[code]....

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Cisco Switching/Routing :: 3750 Stack And Trunking

Mar 5, 2012

I currently have 5 3750s connected via Stackwise. This stack is connected back to my core (6509s) via fiber (1Gig to Core1 & 1Gig to Core2). I want to move the 5th 3750 to another closet due to an addition of a new patch panel. Due to max length of 10 ft. for stackwise, my plan is to connect this 5th switch back to the stack using trunked fiber ports, with them being an etherchannel (2Gig). Also plan to use single fiber port form 2 different switches in the stack to provide some redundancy for the 5th switch. Should I be alert of any issues with this connection design? Do I need to properly remove the 5th switch from the stack using, no sw 5 provison sw-model or can I just disconnect stackwise and connect back with fiber?

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Cisco Switching/Routing :: Adding A New 3750 To Stack

May 29, 2012

I had 2 3750 stacked and one of them decided to die (power supply) cisco replaced it and now i want to re-add that switch to stack. I have already upgraded my replacement switch to the same IOS version.I was reading that i can do it without powering down operational 3750 so the action plan so far is:
 
-power down NEW member
-connect stacking cable
-power up
 
as you can see my switch 2 is now a master and it still holds config of all Gi ports for switch 1. If i connect my NEW switch without any config (vlan.dat and startup-config) will my existing switch 2 copy all ports config to new switch ?

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Cisco Switching/Routing :: 3750 Stack Crash

Oct 22, 2012

We had an "Event" on our process network at the mill yesterday.  I connected a new WS-C3560V2-48TS-S to our network and we lost communications with all of the other switches.
 
The core is a stack of 3 WS-C3750 switches, one is a -24TS-1U and the other two are -12S-S.  These connect to 10 WS-C3560G-24TS and 5 Rockwell Stratix 8000 (IE3000) over fiber.  I am planning on replaceing two 24 port switches with the new 48 port.  I had the switch configured and running at my work bench.  It was connected to the network with one sfp module and ran all weekend with no issues.  Yesterday afternoon I took it to the network cabinet and installed it.  I powered it up and connected two sfp modules to the fiber patch panel and made the connection at the core stack. 
 
Everything looked OK.  I had communication link lights working on everything.  Within minutes, we lost communication with every switch connected to the core stack.  I shut down the new 48 port switch and the network slowly came back up.
 
The new 48 port is configured with Flex Links for the fiber redundancy protocol and was connected to each of the 3750G-12S-S stack members.
 
I though it might have been a power issue but the stack is UPS protected and shows it has been up for over 10 weeks.  I'm not even sure "Crash" is the best decription for what happened.  The new switch has a high enough IP address that it would not take over as a IGMP Querier.

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Cisco Switching/Routing :: Add A New 3750x To Existing Stack Of 3750

Aug 2, 2012

I've a situation where I need to add a new 3750x to a existing stack of 3750. [code] When I tried to stack them together, I get a version mismatch error. Is this because of the difference in SW Image?  What are my options next ? My ultimate goal is to make the new switch stack correctly with the exisitng switches.

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Cisco Switching/Routing :: Stack Behaviour Of 3750 Switch

Nov 17, 2012

I configured 3750 A  switch with vlan 20 and its IP address 192.168.20.41Its default gateway was 192.168.20.3Then i configured 3750 B  switch with same default gateway and vlan 20 IP   192.168.20.43My question is now when we stack it becomes single switch and now vlan 20 ip address is 192.168.20.43 thats only IP i can see.So how does stack switch choose vlan 20 IP?Does it choose highest IP address between two switches if they have same vlan 20 as in my case?Also when i go to switch 3750 b by session command and do sh ip route  it does not show ip default gateway .Also it shows vlan 20 as admin down .

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