3850 switch stack upgrade with minimum downtime

I was wondering if it is possible to do an upgrade of the individual stack members one at a time?
Is it possible to go from one major release to another doing this?
Is it possible to do this going from one minor release to another?
Is it possible to upgrade one stack member at a time within the maintenance release?
Thanks

I was wondering if it is possible to do an upgrade of the individual stack members one at a time?
Ans: Yes you can, but the switch will leave the stack
Is it possible to go from one major release to another doing this?
Is it possible to do this going from one minor release to another?
Is it possible to upgrade one stack member at a time within the maintenance release?
Ans for all above 3: For Stack configuration to work properly, switches must have the exactly same ISO
Recommendation: If they're many switches in stack,
1. upload the IOS file in all the switches
2. change the boot order in running config by:
boot system flash: <new ios fiile name>
boot system flash: <old ios fiile name>
3. take the reload one by one & copy the running config
4. in this case, basically you would be making the new parallel switch stack by adding the reloaded switch with same config but with new IOS image

Similar Messages

3850 switch stack rebooting

I have a stack with 3 ws-C3850-48T switches.
They are running 3.3.4SE firmware.
Installed 12 sept this year.
Yesterdag the stack suddently rebootet.
To day they have just rebootet Again.
Are there a more stable version ?

Since these are 3850s, I am assuming you have service contract. If yes, open a ticket with Cisco before upgrading the IOS as it can also be hardware related issue.
HTH

Error during Java Stack upgrade with SAPINST Tool for Netweaver 04

Hi,
I have updated all the ABAP stack support packages fine. But when i try to upgrade the Java Stack for the BW server using the SAPINST tool, i received an error in the 17th step "Starting J2EE Engine".
The error log says:
CJS-20057 Starting Java engine DVEBMGS05 of SAP system <SID> failed:
after 165 seconds the state of the engine changed from "Starting" to "Stopped".
Please help.
Thanks
Vijay

Hi Vijay,
Please check the link for some initial troubleshooting:
http://help.sap.com/saphelp_nw70/helpdata/en/69/430841a6e1ef6fe10000000a1550b0/frameset.htm
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Switching an upgrade with a phone from a soon to be deactivated device

So this is my situation, we have a MiFi device that is due for an upgrade. I have a phone that is not charging anymore and my upgrade isn't for a couple months. I know I can transfer the upgrade to another phone so that isn't my question. We finally have a reliable internet service and the contract for the mifi is up. We decided that we are going to get rid of the mifi since we no longer need it (we haven't done this yet). Can we use this upgrade on my phone without having to commit to another two year contract with the mifi? I'm guessing not but I want to know if its possible or not. Any input would be appreciated!

If you use the upgrade, you're still signing a two year contract on the line that had the upgrade available.

How many Cisco Catalyst 3850 switches can make up a Cisco StackPower stack?

I know the number of Cisco 3850 switches for stacking is 9, so, if I make up a Cisco StackPower stack, MAX is 9, too?

Hi, emma, only 4 switches can become part of the same Cisco StackPower stack in a ring topology.
For the Cisco 3850 switches stack number,there are two types:
Up to 9 Cisco Catalyst 3850 switches can be stacked together to build single logical StackWise-480 switch since Cisco IOS XE Release 3.3.0SE. Prior to Cisco IOS XE Release3.3.0SE, up to 4 Cisco Catalyst 3850 switches could be stacked together.

BI7 dual stack upgrade using 'resource minimised' method

Hi
I am upgrading a Windows 2003/MS SQL 2005 sandpit NW04 BI 350 dual stack (ABAPJAVA) to BI7 (NW04S ABAPJAVA) as a test before working on our actual landscape, I have started the ABAP upgrade and chose the 'resource minimised' method as downtime isn't an issue on the sandpit, I then started the upgrade on the Java stack, but then noticed in the documentation it states you should use 'downtime minimised' for a dual stack upgrade? the ABAP prepare recognised I had a dual stack and said it would be synchronised but never complained about the resource minimised choice ? the phases have been waiting for synchronisation so far without a problem.
Is this a problem? I can reset the upgrade, but its quite far through, so would rather not !
Thanks,
Paul.

Hello Paul
As you said, SAP state that you must perform a dual stack upgrade using strategy downtime - minimised. I had a problem when I used resource minimised but if your upgrade is running then donu2019t terminate it. If it works, thatu2019s great.
What I normally do is run strategy downtime minimised with an import time of zero hours.
Thank You
Anwar

Setting up VLANS for WAPS on 3850 switches

This may not be the right forum to ask, but I have asked under LAN switching and routing and have not gotten any help, so maybe posting here will help - here is what I need help with:
Set up two SSID's on four autonomous 1600 series WAPs - one for employees wireless network access and one for customer guest access, both password protected. We have two 3850 switches, stacked. The WAPS are plugged into ports 41 and 42 on each switch. I know I need two separate VLANs - one for each SSID, but don't know how to do this on the switches - can someone help me with the syntax of the commands to apply to the switch?
Here is the configuration of the port now:
interface GigabitEthernet1/0/41
switchport trunk allowed vlan 1,10,11,1001-1005
switchport mode trunk
switchport voice vlan 11
trust device cisco-phone
spanning-tree portfast
service-policy input AutoQos-4.0-CiscoPhone-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
Thank you

Hi Steve,
Here is the configs, try this & see. modify <> content as you want. I have shown one AP config. You can assign different IP/hostname to the 2nd AP. Make sure you erase AP current config & apply below.
conf t
hostname <AP-01>
dot11 ssid A4HS
vlan 10
authentication open
authentication key-management wpa version 2
mbssid guest-mode
wpa-psk ascii <A4HS_PASSWORD>
dot11 ssid A4HS-Guest
vlan 20
authentication open
authentication key-management wpa version 2
mbssid guest-mode
wpa-psk ascii <A4HS-Guest_PASSWORD>
interface Dot11Radio0
encryption vlan 10 mode ciphers aes-ccm
encryption vlan 20 mode ciphers aes-ccm
mbssid
ssid A4HS
ssid A4HS-Guest
no shut
interface Dot11Radio1
channel width 40-above
encryption vlan 10 mode ciphers aes-ccm
encryption vlan 20 mode ciphers aes-ccm
mbssid
ssid A4HS
ssid A4HS-Guest
no shut
interface Dot11Radio0.10
encapsulation dot1Q 10
bridge-group 10
interface Dot11Radio0.20
encapsulation dot1Q 20
bridge-group 20
interface Dot11Radio0.1
encapsulation dot1Q 1 native
bridge-group 1
interface Dot11Radio1.10
encapsulation dot1Q 10
bridge-group 10
interface Dot11Radio1.20
encapsulation dot1Q 20
bridge-group 20
interface Dot11Radio1.1
encapsulation dot1Q 1 native
bridge-group 1
interface GigabitEthernet0.10
encapsulation dot1Q 10
bridge-group 10
interface GigabitEthernet0.20
encapsulation dot1Q 20
bridge-group 20
interface GigabitEthernet0.1
encapsulation dot1Q 1 native
bridge-group 1
interface BVI1
ip address 192.168.0.31 255.255.255.0
ip default-gateway 192.168.0.2
end
write memory
Here is the switch configs. I hope you have defined DHCP pools for vlan 10/20 on your DHCP server (192.168.0.101).
interface GigabitEthernet1/0/41
Description AP-01
switchport trunk allowed vlan 1,10,20
switchport mode trunk
spanning-tree portfast trunk
interface GigabitEthernet1/0/42
Description AP-02
switchport trunk allowed vlan 1,10,20
switchport mode trunk
spanning-tree portfast trunk
interface Vlan10
ip address <x.x.x.x> 255.255.255.0
ip helper-address 192.168.0.101
interface Vlan20
ip address <x.x.x.x> 255.255.255.0
ip helper-address 192.168.0.101
**** Pls do not forget to rate our responses if you find them useful ****
HTH
Rasika

Cisco Catalyst 3850 switches

How many Cisco Catalyst 3850 switches can stack into a single logical entity?

Hi, emma, only 4 switches can become part of the same Cisco StackPower stack in a ring topology.
For the Cisco 3850 switches stack number,there are two types:
Up to 9 Cisco Catalyst 3850 switches can be stacked together to build single logical StackWise-480 switch since Cisco IOS XE Release 3.3.0SE. Prior to Cisco IOS XE Release3.3.0SE, up to 4 Cisco Catalyst 3850 switches could be stacked together.

Snmp for 3750 switch stack

Hi,
I have two 3750 switch stack together with one ip address mange the stack.
Can I monitor the memory and cpu for each individual switch? what is the oid then?
Thanks.
C.K.

Hello CK,
On the Catalyst 3750, the stack master handles the SNMP requests and traps for the whole switch stack.
The stack master transparently manages any requests or traps that are related to all stack members. When a new stack master is elected, the new master continues to handle SNMP requests and traps as configured on the previous stack master, assuming that IP connectivity to the SNMP management stations is still in place after the new master has taken control.
So to answer your question, with the OID for CPU and Mempory usage the switch will return only values for the active master. The other stack members are hot standby and do not produce SNMP information for CPU and/or Memory.
HTH
--Leon

Oracle Upgrade with no or minimum downtime.

Hi DBAs,
I have setup the R12 with 10g (10.2.0.3) on RHEL 5.2 - 1 apps node with 2 node RAC. The database is configured with physical standby (2 Node RAC Dataguard). I want to upgrade the database to version 10.2.0.4 and also want to apply the April 2009 CPU patch. I am also using ASM.
Please suggest any way that I can upgrade any one database and in the mean time the other one is avaialble for application and then I can upgrade the other. And after upgrade how to sync both.
Thanks
-Samar-

Samar,
The steps are outlined in the following documents.
MAA Best Practices -Reducing Downtime for Planned Maintenance Operations using Oracle Database 10g HA Features
http://www.oracle.com/technology/deploy/availability/pdf/oow06/S281209_To.pdf
Maximum Availability Architecture (MAA) Best Practices for Planned Maintenance: Online Patching and Rolling Upgrades with Oracle Database
http://www.oracle.com/technology/deploy/availability/pdf/webcasts/maa_planmaint.pdf
Regards,
Hussein

Has anyone deployed converged access with 3850 switches and 5760 WLCs?

Has anyone deployed a converged access network architecture with 3850 switches and 5760 WLCs? I have done lots of projects with the 5508 WLCs In a centralized deployment. Basically with this design, I manage 2 logical networks as the wireless network is an overlay over the wired network. I can design firewall to segregate traffic between the wired and wireless hence I can carry both staff and guest traffic.
Now Cisco is telling us that there is new design such that the dats plane traffic can be dropped locally through the 3850 switched. I am not sold on this and have not found any recommended best practices on when should we use a converged access architecture.
Pros
With converged access, data traffic is terminated at the MA which is on the switches, hence the WLC will not be a bottleneck? This is to prepare adoption for 802.11ac?
Less hops for voice calls from user A to user B as data control traffic is dropped locally.
Cons
Now how do I segregate guest and staff traffic if my security folks say I need a firewall?
Troubleshooting wireless client mobility will be a nightmare as the 3850 switches are MA.
Pushing and upgrading code for the Code will mean upgrading the stack of switches in the LAN riser. This will be painful in a huge campus environment like an university.
Can someone convince me why would a customer choose converged access?
Sent from Cisco Technical Support iPad App

They choose CA because of the capwap termination at the switch. You can still use a 5508 and tunnel guest to a DMZ segment if you wish. You will need a 5508 though is you want to tunnel traffic to an anchor WLC.
Sent from Cisco Technical Support iPhone App

Adding a 3850 to make a switch stack.

Hi all,
I would like to get opinions on how to setup a new 3850 to make it work in a stack. I will be replacing a 3550 in production with a new 3850. This is what I have:
Switch 1: 3850 [ws-c3850-24p] Lan base
Switch Ports Model              SW Version        SW Image              Mode
     1 32    WS-C3850-24P       03.02.02.SE       cat3k_caa-universalk9 BUNDLE
Switch 2: 3550 [ws-c3550-24-pwr]
C3550 Software (C3550-I5Q3L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
New switch: 3850 [ws-c3850-24p] Lan base
Switch Ports Model              SW Version        SW Image              Mode
*    1 32    WS-C3850-24P       03.03.01SE        cat3k_caa-universalk9 INSTALL
My goal is to pre-configure the new switch with the info from the 3550, send the switch to the site, and be able to make it work in a stack with the 3850 under production.
My thoughts:
- Change SW 1 priority to 15
- Change New switch priority to 12
- On SW 1: #switch 2 provision ws-c3850-24p
- On SW 1: configure switch 2 interfaces to match SW 2 after introducing the command above
- Upgrade IOS on SW 1 to match New switch
- Connect stack cables (New switch power OFF)
- Power ON New switch
- Get a drink
I did a #switch 1 renumber 2 on the New switch, but it didn't chage the switch number.
Will this work? Or should I
- Change SW 1 priority to 15
- Change New switch priority to 12
- On New switch: configure interfaces to match SW 2
- Upgrade IOS on SW 1 to match New switch
- Connect stack cables (New switch power OFF)
- Power ON New switch
- Get a drink
Regards,
G

Ok.. The new switch is pretty good. its running the recommended IOS-XE version(3.3.1) and is in recommended mode (Install).
1st you need to change the mode to "install" mode in the old switch and upgrade the IOS to 3.3.1.
this doc will help you.
https://supportforums.cisco.com/docs/DOC-39667
1. switch number will take effect once after the reload.
this will definately work.
- Upgrade IOS on SW 1 to match New switch
- Change SW 1 priority to 15
- Connect stack cables (New switch power OFF)
- Power ON New switch
- On SW 1: #switch 2 provision ws-c3850-24p
- On SW 1: configure switch 2 interfaces to match SW 2 after introducing the command above
- Get a drink
- update me in this thread.

Switch stack IOS upgrade

Hi,
I am planning on upgrading a 3750x switch stack to a slightly newer version.
My question is, would I have to load the new image onto each switch in the stack or just the master?
Thanks,
Waqas

I am planning on upgrading a 3750x switch stack to a slightly newer version
Specify the IOS so we can determine if you are going to a bad IOS version.
My question is, would I have to load the new image onto each switch in the stack or just the master?
1. Download the IOS file with the TAR filename from the Cisco website.
2. Compare the MD5 hash value of this file against the one in the Cisco website. The MD5 hash value must match.
3. Use the command to upgrade your IOS: archive download-sw /destination N tftp:///IOS.tar
NOTE: /destination N - The "N" means the switch members in a stack. If you have three switches in a stack then you use /destination 1 /destination 2 /destination 3.

Add 3850 Switch to existing Core Stack

Hello,
I need to add a 3850 to our collapsed core Current setup - 5-3850 stack switches with vlans and routing enabled.
We are in need of more ports and I purchased a 3850.
I will add the switch to the core via a trunk port
I will make vtp transparent
I will configure the magt vlan 10 with an IP addess.
QUESTION.
After this is done, do I make the switch VTP client?
Also, do I turn on IP routing? Or, with the trunk send all packets destined for other vlans over the trunk to the core, and the core will hanle routing?
I am talking about routing between vlans, so user vlan 64 can talk to vlan 64.
I have been doing routing on WAN so long I have forgotten best practices on the LAN and L3 Switching.
OR.....
Do I simply add this to the switch stack?
Thank you for any help!
-T
Any help is appreciated.

When you add a switch to an existing stack it gets all of its configuration from the stack master.
Just verify it has the same IOS version installed (and doesn't have switch priority set such that it takes over as master) and plug it in via the stacking cables.
If you're adding it as a new access switch then yes just trunk all the VLANs across the uplink to the core. If you have a VTP server setup then set your VTP domain and come up in client mode. If the routing is active on the core and your VLAN SVIs are all there, there's no need for routing on the access layer and the only SVI you need is for management (or use the dedicated management interface for out of band management in its own VRF).

Solarwinds Netflow products what will work with a 3850-switch

Does anybody know….what Solar winds product will do Net Flow with Cisco 3850-switches? I know Net Flow Configurator will not work….but what about Net Flow Real-time for a Cisco 3850 switch?

For a lot of people, it is not neccessary. I used to ask myself that question until I came across a need for things that iLife and the Finder would not do.
Toast is a great program with a lot of features that just are not standard on a Mac.
You can make music DVDs. You can span a HD backup over multiple disks. You can make hybrid PC/Mac disks. It has DVD compression tools to fit a 8.5GB dual-layer DVD onto a single layer 4.7GB DVD.It suppoprts OGG and FLAC audio formats. You can turn your iMovie and iDVD projects into DivX disks.
It also has lots of nice tools to clean up audio that is imported from a noisy source - like vinyl.
It is all in all a very useful program, but not unless you need any of those features of course.

3850 switch stack upgrade with minimum downtime

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