Cisco Switching/Routing :: Adding New Switch To Existing C3750x Stack?
Dec 6, 2012
I am having an issue with adding a c3750x switch to an existing switch stack Currently there is 2 x WS-C3750X-48P and I am trying to add another WS-C3750X-48P to this switch I have cabled the switch to the stack using the stack cables and added the command to provision the switch on the exisitng stack. However when I turn the switch on it just goes on its own stack.
I noticed the new switch had a later version of IOS so have downgraded this to the same version as the other switches but still no joy Here is the sh ver from the exisitng stack
uptime is 4 weeks, 4 days, 23 hours, 30 minutes
System image file is "flash:/c3750e-universalk9-mz.122-53.SE2/c3750e-universalk9-mz.122-53.SE2.bin"
License Level: ipbaseLicense Type: PermanentNext reload license Level: ipbase
cisco WS-C3750X-48P (PowerPC405) processor (revision A0) with 262144K bytes of memory.Processor board ID FDO1448Z0FJLast reset from power-on21 Virtual Ethernet interfaces1 FastEthernet interface156 Gigabit Ethernet interfaces6 Ten Gigabit Ethernet interfacesThe password-recovery mechanism is enabled.
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Mar 25, 2012
in our network we were using three 3750-48-s switches with stacking one of the switch due to some hardware failure power problem,
now i want to add a new switch 3750-48-s in the existing Stack two switches , the old two switches ios version is = 12.2(25r)SEC the new Catalyst 3750 io verion is = 12.2(35)SE5
how to add this switch in the existing two stack switches , with documentation
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Nov 23, 2011
I am looking to add a new 3750 Switcch to an existing stack shown below
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 26 WS-C3750-24P 12.2(35)SE5 C3750-IPBASE-M
2 26 WS-C3750-24P 12.2(35)SE5 C3750-IPBASE-M
3 26 WS-C3750-24P 12.2(35)SE5 C3750-IPBASE-M
[code]....
I have looked on notes to add a switch to an existing stack and haven’t identified answers on how the IOS will be affected on the new switch – will it downgrade to the current stack version or will the current stack upgrade to its version. At this moment in time I would prefer if the new switch IOS downgraded to the current stack IOS version.The new switch is a 3750V2 – will this affect how it joins the stack?The new switch has the image of IPBASEK9-M – again will this affect how it joins the stack?
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Oct 16, 2012
I am attempting to add and Catalyst 3750 - 12 port Gigabit switch to an existing stack of 3750 48 port switches (non-X fabric). I am not sure how to proceed. These are the two questions/thoughts I have. Any additional perspective I should have before proceeding.
What kind of configuration should I apply to the Gig switch before adding it to the stack?I am sure I will need to assign priority to the new switch, ideally, it will act as master.
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Oct 1, 2012
I need to add two additional 2960S switches to my stack. I saw a diagram that showed how a 4 switch stack can be connected, but I couldn't find much detail on adding a switch to an existing stack (besides master election). The output below shows how the existing stack is connected and its state
SW#sh switch detail
Switch/Stack Mac Address : 0011.2222.3333
H/W Current
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I will need to break one of the stack rings between SW1 and SW2 in order to connect the new switches. Does it really matter which ring I break to connect the additional switches? Does one ring act as primary? If so, I'd rather not break that ring so this process is transparent as possible. Also, is there any benefit to disabling the stack port vs just disconnecting the cable?
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Feb 27, 2013
I have to add a 2960s PoE switch to an existing stack of two 2960s PoE switches. If The new switch has no configuration on it and the existing stack is broken by pulling te stack cables and then new cables are added and everything re-cabled correctly will the new switch assume the configuration from the stack without any issues?
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Mar 27, 2013
Which is the best and advanced IOS for c3750x-48P-E stack switch among below listed IOS.
c3750e-universalk9-mz.122-58.SE2 ?
or
c3750e-universalk9-mz.122-55.SE6..??
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May 16, 2013
Recently one of our stack switch got failed, Rma raised but we received some different part number.The dobut is like can we stack the below switches.
ws-c3750x-48p-l v02 (old switch)
ws-c3750x-48pf-s v04 (RMA switch)
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Jan 8, 2012
Can we use WS-C3750X-12S-S and WS-C3750X-24T-S in a single stack?
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Sep 12, 2012
We have a WS-C3750G-24PS switch running 12.2(50)SE , C3750-IPBASEK9-M in production & stand alone and we want to ask a new Cisco WS-C3750-24P running 12.2(55)SE3 , C3750-IPBASEK9-M into the stack with the 1st one.
Just want to know if it is possible and are there any problems with the IOS being different version.
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Jan 23, 2013
We have a cisco stack with 5 ws-c3750-24p 12.2)55)SE3 c3750-ipbasek9-m switches. Can i add a switch to the stack that is the following model: ws-c3750g-48ts 12.2(25)see3 c3750-ipbase-m
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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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Dec 18, 2011
Can a WS-C3750X-12S coexist in an existing stack made up of a WS-C3750G-12S and a WS-C3750G-24TS?
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Feb 3, 2012
can 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?
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Oct 26, 2011
Any issues are reported while configuring power stack ? We did several times with 12.2.58SE1 and SE2, sometimes the power stack is created automatically, sometimes needs to be configured manually. Looks like the behavior is not the same. Maybe it depends on the number/type of switches and number/type of power supplies.
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Oct 26, 2011
Does the color strips on C3750X stack power cables mean anything, I mean the green and yellow ones. On all Cisco pictures the green one seems to be plugged in the upper ports. I asked local Cisco representative, but he seems not to be sure. We tried to try different scenarios, and it looks like it does not matter what cable end we use. We do not have any external power supply, only interconnecting C3750Xs.
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Aug 9, 2012
We 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?
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Mar 15, 2013
I have two WS-C3750X-48T-S which is "IP BASE" licensed, which are connected as stack.I need to use Policy Based Routing (PBR) to direct Vlans to two different gateways, and command "ip policy route-map" which is supported only in C3750-IPSERVICES license.Do I need upgrade only master switch with Cisco IOS IP Services - product upgrade licenseMfg. Part#: L-C3750X-48-S-E, or both switches need to be upgraded?
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Dec 26, 2011
Cisco let us try a CISCO C3750X- 24T-S Stack (2 switches) ->> IpBase Sofware licence We've 2 Hyper-v 2008 R2 and one SAN Netapp FAS2040 connected via Iscsi.All was working well with this stacks.Hyper-V see Nas Iscsi interface without problem. Even with basic stack config (no Vlan, ect...).Then, after this test period, we bought a C3750X-24T-L stack (2 switches) to replace the stack lent by Cisco.This one is LanBase Software.
With this stack, hyper-v work very bad ! We've got a lot of Iscsi error in the eventvwr.I can't access luns.So, is there a difference between LanBase and IpBase for a iscsi use ?I put the 24T-S config on the 24T-L switch without pb. So config is the same on both stacks...Also i've got a "TestPortAsicLoopback" = "Failed" on the new stack...I've tried with other stack cables. Not better.
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Jun 11, 2013
I'm trying to stack 3750G & 3750X. As discussed in previous threads I am aware of that the version need to match.
Here the switch details:
Switch Ports Model SW Version SW Image
------ ----- -------------- ----------
* 1 24 WS-C3750G-24T 12.2(55)SE7 C3750-IPBASEK9-M
---------------------------------------------------------------------------------------------------------------
* 1 54 WS-C3750X-48 12.2(55)SE7 C3750E-IPBASEK9-M
I have changed the universal IOS on the 3750X to IP base..but they still wont come up as a stack. On the 3750X I don't see any log entry, on 3750G (major version mismatch).
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Feb 12, 2012
I have a couple of WS-C3750X-48T-L and a couple of WS-C3750X-12S-S, I want to stack all four of them together into a single stack. WS- C3750X-12S-S are running c3750e-universalk9-mz.122-58.SE2 whereas WS-C3750X-48T-L are running c3750e-universalk9-mz.122-55.SE3.I have got a couple of queries as under:What are the options to achieve putting all these 4 switches into a single stack? Can the LAN Base switches upgraded to IP Base?
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Mar 3, 2013
I need your input on how to appropriately introduce an N5K with Jumbo enanbled to a prexisting Core Network (Stack of Cisco 3750G Switches) without making any major alteration on the Core configs (everything is happy). The idea is to move two High I/O servers to the N5K during a transitional phase. I already have a fair understanding of what Jumbo-Frames are and what it does. Keep Jumbo-Frames within the N5K ONLY.
Conditions:
- Traffic is Data traffic, not storage/iSCSI
- The servers host our ERP applications and MySQL that is accessed heavily by users
- N5K to C3750G connectivity is a Port-Channel consisting of 4x1GB ports
- The servers are to remain on VLAN 2 (Data VLAN)
- The Core Switch is L3 and the boundaries reside here
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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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Sep 22, 2012
I have 3 3750 staking switch with the following configuration:
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member 442b.0350.9400 1 1 Ready
2 Member 442b.0357.8780 2 1 Ready
3 Master 442b.036f.a800 3 1 Ready
The new switch is installed to be wired to the master switch. the swtich 3 (* 3 Master Ready 442b.036f.a800)my question is: if you disconnect the wiring from the master stack to connect to the new switch, it is possible that the new switch change the current configuration of stacking.
-Can I just add the new switch with clean configuration without changing the current configuration ?
-How is assigned the stack number? i need the new switch be with the GI4 / x?. I can I manually by assigning ports?
-If I want to the new 3750 member witch lower prioridad, can I change priority before adding to stack?
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Jan 29, 2013
I need to tear down an existing port-channel on a 3750X running c3750e-universalk9-mz.150-1.SE3.bin. This port channel is currently down down. It has three ports in it that will be added one each to three existing port-channels, I am assuming as long as the "channel-group" command is exactly the same as it is on the three existing port-channels I should be ok just adding the new port. One point to note is that the three existing port-channels all have three ports so this will be adding the fourth port to each port-channel. I know after reading that it is a best practice for load balancing to use either 2, 4, or 8 ports for a port-channel. Also what is the command to see all ports that are in a port channel?
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Apr 3, 2013
current topology is build from 4 6500 switches connected in a ring topology. Using Port channel (2x 10Gbit) links to connect left side top and bottom 6500's (DC1), 10 G bit link to connect right side 6500's (DC2) In between a 1 G bit link is used to connect top 6500's (DC1-DC2) and the same for bottom 6500's (DC1-DC2).
Path costs are 5 and 6 so the T5/4 from bottom right is blocking. Bandwidth demands are increasing, so thinking about adding extra 1 G bit links to the existing ones and create ether channels. Path costs here are 4 and 5, so T5/4 from bottom right is still blocking, but when the bottom 2 G bit port-channel is loosing one 1 G bit link the path costs of both directions become equal. So I am worried that STP will not re converge and leave me with a congested 1 G bit link. I cannot test this setup in a lab, are there any options for STP to re-converge here?
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Mar 7, 2013
On first floor, I have two stack switches and each stack has got 4 switches. they all are working fine.Now the client would like to add one more stack on the 2nd floor. But the second floor switches are different when compared to the 1st floor switches.
can you have differnt IOS among different stacks. I knew in a stack we need all the switches should have same IOS version. But in between two stacks to communicate do we need same IOS or they can be on differnet IOS?
1st floor switches have 15.0 version and 2nd floor new switches has 12.2.58. Is this ok ?
1st floor switches are 3500 series ( Note: only one one Vlan 20 we are using on the both stack switches and we would like add same Vlan 20 on to the new stack)
2nd floor switches aew 2 catalyst 2960 switches.
Note: on the second floor switches one is 24 port switch and the other one is 48 port switch. so can i make them as a stack?
We have already done cabling from 1st floor to second floor. So no problem with that at all.
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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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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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Jul 17, 2012
I am getting a version mismatch when adding the following 3750X to the 3750 stack:
WS-C3750X-48 12.2(55)SE3 C3750E-UNIVERSALK9-M
2 0 WS-C3750-24TS 12.2(25)SEA C3750-I9K91-M
Can I upgrade the 3750's to be able to correct this? Which version does this require?
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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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Apr 2, 2012
The company I work for owns a remote manufacturing facility that houses a stack of five 3750 switches that function as the core switching system for the plant. DHCP services are configured on the 3750 stack.
There are currently three VLANs configured, one for data and one for voice (144 and 244 respectively) and one for UCM servers (200), with corresponding subnets of 10.44.32.0 /19, 10.44.0.0 /19 and 10.44.100.0 /24.
The current DHCP scope configurations are as follows:
ip dhcp pool Plant-44_DHCP
network 10.44.32.0 255.255.224.0
default-router 10.44.33.254
[Code].....
My question is will the addition of this scope in the manner presented cause any problems with PCs or IP phones outside the targeted recepents receiving the wrong IP information from this scope?
I plan to identify the users that should be members of this VLAN 444 and change the switchport mode access configuration on the corresponding switch ports from VLAN 144 to VLAN 444. The voice VLAN 244 will remain the same.
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Nov 7, 2012
Can i put in stack the ws-c3750X-12S-E and ws-c3750X-48P-E? considering the follow features:
WS-C3750X-48P-E (Catalyst 3750X 48 Port PoE IP Services)
S375XVK9T-12253S
CAT 3750X IOS UNIVERSAL WITH WEB BASE DEV MGR
WS-C3750X-12S-E (Catalyst 3750X 12 Port GE SFP IP Services)
C3KX-NM-10G
S375XVK9T-12255SE
CAT 3750X IOS UNIVERSAL WITH WEB BASE DEV MGR
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