Cisco 3850 Power Stack

Hi
We recently purchased four Cisco 3850 switches (WS-C3850-48P-S) which comes with 715WAC power supply. We have also purchased additional four 1100WAC power supplies.
Our requirements are:
Configure four switches in stack
Use power stack feature
All 192 ports in Stack should be POE enabled
Questions:
Can we use both 715WAC and 1100WAC power supplies in same switch
Can we have all ports POE enabled with having both 715WAC and 1100WAC power supplie
Thanks
Muhammad Ibrahim

Hi,
See this information below:
24-Port PoE Switch
48-Port PoE Switch
PoE on all ports (15.4W per port)
One PWR-C1-715WAC
One PWR-C1-1100WAC or two PWR-C1-715WAC
PoE+ on all ports (30W per port)
One PWR-C1-1100WAC or two PWR-C1-715WAC
Two PWR-C1-1100WAC or one PWR-C1-1100WAC and one PWR-C1-715WAC
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3850-series-switches/data_sheet_c78-720918.html
Hope this helps.

Similar Messages

Looking for Cisco 3850 power-stack OID

Hi all,
Does anyone know the OID for the Powerstack interfaces of the Cisco 3850?
It is not the normal ifentry like the data-stacking cables!
Thanks
Willem

Hi,
See this information below:
24-Port PoE Switch
48-Port PoE Switch
PoE on all ports (15.4W per port)
One PWR-C1-715WAC
One PWR-C1-1100WAC or two PWR-C1-715WAC
PoE+ on all ports (30W per port)
One PWR-C1-1100WAC or two PWR-C1-715WAC
Two PWR-C1-1100WAC or one PWR-C1-1100WAC and one PWR-C1-715WAC
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3850-series-switches/data_sheet_c78-720918.html
Hope this helps.

Cisco 3850 Redundant Power Supply Reporting Issue

We have deployed several Cisco 3850's. Several are showing the following symptom
ont2-tc3-es01#sh env power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
1A PWR-C1-715WAC DCB1702G0QU OK Good Good 715
1B PWR-C1-715WAC DCB1702G0G6 No Response Good Good 715
Every single switch at this particular location has the same status on the B power supply. The problem was there on the previous code level (3.2.2) and we recently upgraded to 3.3.5 to resolve some SNMP bugs on the switches we also expected the latest Assurewave version to fix this issue also. So couple questions:
1. Anyone else seeing this?
2. Anyone found a fix for it?
Thanks!
Marty

Hi Zabeel,
                   I did talk with TAC - per the engineer there are two bugs that cause the issue and one was fixed in 3.3.5 - so we upgraded all our 3850's to that code level. Unfortunately for us, that still didn't fix the issue. TAC suggested that it may be fixed in rev 3.7.0, but that has not officially been confirmed by Cisco's developers.
         We're waiting for the official "fix" before going through another round of switch upgrades.
        TAC did suggest reseating the power supply if you still have the issue after the upgrade to 3.3.5 - but that's not really an option for me since my switches are geographically spread out.
   HTH
             Marty

Cisco 3850 Dual Power Supply - One No Response

Hey Guys,
I am getting multiple switches on my network showing "power supply failure" from Solarwinds.
I am running Cisco 3850s running v 03.02.03.SE cat3k_caa-universalk9 iOS, and they all have dual power supplies. When i do the sh env power, I get this output.
SWITCH1#sh env power
SW PID Serial#     Status Sys Pwr PoE Pwr Watts
1A PWR-C1-715WAC       xxxx OK Good     Good 715
1B PWR-C1-715WAC       xxxx No Response   Good     Good 715
SWITCH2#sh env power
SW PID Serial#     Status           Sys Pwr PoE Pwr Watts
1A PWR-C1-715WAC xxxx   OK Good     Good 715
1B PWR-C1-715WAC xxxx No Response     Good     Good 715
When I physically go down to look at the switches, they have green lights, so they are receiving power, but I keep getting the PSU failure alerts.
Do you think it is an iOS issue, and should I upgrade? Or has anyone else seen this?

Hi,
I think below Bug could match with your issue.
"power supply B is not responding" reoccurring on Catalyst switches
https://tools.cisco.com/bugsearch/bug/CSCun41735/?reffering_site=dumpcr
And we can see workaround of this issue is HW workaround.
Thanks,
Jack

Cisco 3850 Switch and Windows 7 IP Conflicts

Team,
Last evening (Christmas eve) we setup a pair of Cisco 3850 with IP Base version 3.3.35SE (recommended) and 3.7.0E (very latest).
We got these to replace a very old switch that had died. Attached to this network are windows 7 PC's with all the standard patches, service packs, etc.
with standard port configs - no PC would work - and in fact on each screen we got the windows 7 IP Conflict pop up box.
This seemed very odd to us, as we know these IP's are all static (no dhcp on this segment at all)
we went with a very vanilla config on each port
interface g1/0/1
switchport host
that is it - nothing special at all.
well, after hours of research we found the 3850 has a problem where its "ip device tracking" (even though disabled, by way of NOT being enabled on any interface) will effect the windows 7 PC's ip address in use detection port start up phase!
This is a very big problem. I am frankly SHOCKED Cisco would release a major switch that is going to not work when connected to the average network with windows 7 PC's.
we tried 3+ hours of prescribed work-arounds found when researching this issue -
ip device tracking probe delay 10 (global config)
ip device tracking max 0 (disabed, on interface)
finally,
nmsp attach suppress (interface, however this appears to be a default command in all IOS-XE versions we tried, as the command did NOT show in the show run) . this effected many different nic card vendors (laptops, desktops) and nic card drivers levels from old to very recent.
Finally,
we compared a 3850 in another location to this one - and we never got HIT by this problem before because that 3850 only as TRUNK ports and no windows 7 hosts directly attached.
Doing more research, I found out this also can effect vmware guests running windows SERVER.
this is now a huge issue as we have a scheduled deployment of 3850's throughout our network which is going to be put on hold.
the work-around I came up with which is not great is -
Make ALL the "access" ports connected to PC TRUNK ports and leave the NATIVE vlan (untagged) as the vlan you want the PC's to be in
interface g1/0/1
switchport mode trunk
switchport trunk native vlan 1
this is NOT an acceptable workaround as this presents security issues even with
switchport trunk allowed vlan 1, etc. as the only allowed vlan.
Note: this issue manifested itself and windows 7 PC's were UNABLE to use the network. if you do "ipconfig /all | more" you would see
192.168.0.140(duplicate) and the interface would actually use 169.254.0.239(duplicate) so the duplicate message appeared twice in the output.
1) With and without an SVI interface on each 3850 for the vlan where the windows 7 machines had a duplicate
2) when we had an SVI and the command ip device tracking probe use-svi (or whatever the hidden command is I forget now, but it took it)
3) when we had aaa new-model configured - and not configured - thinking this was some artifact of having aaa turn on something like 802.1x port state
4) when could confirm NO DHCP SNOOPING
5) when we DID not use static IP's - and had the switch assign DHCP addresses - the Windows 7 PC's STILL had duplicates and didnt work for their "Just leased" ip's.
6) when we could confirm ios-xe ip device tracking = disabled with show ip device tracking status, etc.
This is a major problem for this 3850 and unless we get a definitive answer on why this is happening and how we can rectify we are going to have to return our 3850's and get HP Procurve's something I would rather avoid doing. There is NO REASON I can imagine other than older switches who's ports default to ROUTED ports (i.e.. no ip switchport) where a switch should not at least function as a bare switch with essentially a default configuration out of the box.
Any ideas? I'm working well now with the ports ALL in trunking mode with vlan 1 native, but this is not a scalable workaround we can live with as we have security risks of a port not blocking certain vlans from going out ports to pc's, etc. that attackers could send tags on at that point, etc.
thanks,
Joe Brunner
#19366

thanks for replying - i'm not onsite (its a standalone network) - but here is what it is -
Answers in line -
This all stems from a switch replacement correct?
yes a 10 year old Allied Telesyn switch was replaced that had no config - like a hub, just used for connectivity.
Are these 3850's in a stack?
>yes, tested all aspects of the stack many times.
Does it have a managment ip address -If so, is it using the old switch ip address
>old switch had no ip - i made a "management interface" on vlan 1 - BUT no ip on the built-in management interface on the switch.
What are they connecting to? (a router/L3 switch/anohter switch- cisco-HP etc..)
>various other devices - only 1 link back to a single 3750x stack. that switch is "hardened" so to speak to reveal or propagate very little by design.
How are they connected( L3 interface/L2 trunk/access port)
>all ports are left in trunk mode with vlan 1 as the active and untagged port. this was the workaround done to ever get the switch going. in "out of the box" or default mode as we initially wanted (no config) links to windows 7 PC's didnt work. links to linux or other devices non-windows did work!
Are thse switches performing inter-vlan routing or just acting as host switches?
>dumb flat network, no routing.
Is ip routing enabled?
>not unless enabled on 3850 by default. I didnt type "ip routing"
Do you have multiple vlans in your network and if so ar ethe being propergated to these new switches?
Your 7 pcs = are they just client pcs not servers?
client PC's - no servers OS per say.
can you confirm something like ICS isnt enabled (Internet connection sharing) on any of them?
>yes not enabled.
Are the just using one NIC each?
> one machine is dual homed - but we know where its "second nic" goes - to another cisco network which is NOT connected back to this one. we traced all our ports a few times thinking even perhaps some small hub was "reflecting" traffic back to us - like a blackbox. Strangest thing -
default config out of the box - with ALL ports SHUTDOWN EXCEPT the single windows 7 facing port - the windows 7 machine STILL registered an IP CONFLICT when connected to the 3850 - even when it had NO SVI's!!! (i know mind numbing). if you disconnected the pc and connected it to an old cisco switch - it worked fine!!! wow.
sh switch
2 identical 3850's in working stack. power and network stacked. both at same version, etc - upgraded each time with "software install file flash:<long ios name>.bin
tested all power and general 3850 stacking. saw no issues.
sh int trunk
>all ports are now trunks (hence the workaround used to get it up).
has 20 trunks to PC's and some single connected switches (far away on fiber) - all allow only vlan 1 - no other vlans were created - very very simple network. vlan 1 is native
sh vlan brief
>just vlan 1 - no vlans created, checked this many times - had vlan 100 at one point - made sure it was gone over a period of hours.
sh vtp status
not setup - left complete default; no vtp domain set - connected to all switches in transparent model if a switch connection exists.
sh cdp neighbours
cant post (for god and country LOL) but there is one link back to our "core" so to speak - that switch is hardened not to allow any settings to slip over to new switches so hence no vtp, cdp is one to help troubleshooting.
sh ip route
just the L and C routes for the vlan 1 ip address 192.168.17.1/24
no static routes
no vlan interfaces other than int vlan 1
no ip address on g0/0/0 -> the default 3850 management interface hard assigned to the 3850 VRF you cant remove.
int g0/0/0
ip vrf forwarding Switch_Mgmt
i can get over there if you think of anything else key to show the group.
thanks,
Joe

Unable to change boot file on Cisco 3850

I was working on a Cisco 3850 24 port switch today and I read that it doesn't use the normal "boot system flash:XYZ.bin" but instead it's something like this:
"software install file flash:XYZ.bin new"
That changes the install package or something which makes it boot in the newly selected package which contains the new IOS. Anyway, when i put in that command I get something about "Failed to ...." or something. I'm sorry but I'm at home now and I don't have the device with me and it just occured to me to post this on the forum for possible help. Either way, it's specifically says "Failed..." as the first word which is not what it should normally say.
I used these directions:
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12686/deployment_guide_c07-727067.html#wp9000169
I am in Install mode. Can anyone help me figure out why this is happening before my outage window on Sunday night? I've downloaded the new version of the IOS from Cisco.com and verified it is currently located in the flash of this device.
Thanks for any help you can provide!

Joshua,
Plesae find quick guide on upgrading and booting, see below as a reference.
Recovering from a 3850 boot failure.
There are multiple reasons a 3850 may fail to boot correctly including a corrupt boot image, a corrupt packages.conf file, missing files, etc. Below are a few different possible recovery methods to try. I will also explain the two possible mode options, Install and bundle and why you might want to use one or the other.
Install vs. Bundle Mode
There are a few difference in the two modes, I would recommend reading over the config guide for more in-depth details. The recommended mode during operation is INSTALL mode because it allows for more features and requires fewer resources when booting.
++Install Mode
This is the out-of-the-box mode that your switch will be in. INSTALL mode uses a package provisioning file named packages.conf to boot the switch.
If you happen to be in bundle mode upon boot, you can simply boot your switch in install mode by booting the software package provisioning file that resides in flash. If packages.conf doesn�t exist in flash, you need to expand the bundle into the flash file system by running
Switch# software expand file flash: cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin to flash:
Once this completes, you will have all the needed files in flash. You can then change the boot statement to boot to packages.conf
Switch#Config t
Switch(config)# no boot system
Switch(config): boot system switch all flash:packages.conf (do not modify this file, unless necessary)
Switch#write memory
The provisioning file contains a list of software packages to boot, mount, and run. The ISO file system in each installed package is mounted to the root file system directly from flash.
NOTE **Auto-upgrade is disabled, by default. (once in install mode - execute the following command in global config: software auto-upgrade enable )
NOTE **Auto-upgrade includes an auto-copy process and an auto-extract process.
++Bundle Mode
As noted previously, bundle mode consumes more memory than booting in install mode because the packages are extracted from the bundle and copied to the RAM. If you decide to convert to bundle mode, you will first need to download the .bin file from CCO if you don�t already have it in flash. Once in flash, you can simply change your boot statement to point to the (.bin) file:
Switch#Config t
Switch(config)# no boot system
Switch(config): boot system switch all flash: cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
Switch#write memory
The provisioning file contained in a bundle is used to decide which packages to boot, mount, and run. Packages are extracted from the bundle and copied to RAM.
NOTE **Auto install and smart install functionality is not supported in bundle boot mode.
Recovery Methods
USB
The 3850 has a USB port on the front that can be used for both console access and also the ability to utilize a flash drive for image backup and recovery.
If you happen to be stuck at the switch: prompt with a corrupt image or .conf file, you can easily boot to a file stored on the USB drive.
1. Verify that the flashdrive is recognized and the .bin file exists
switch: dir usbflash0:
Directory of usbflash0:/
74 -rw- 223734376 cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
2. Boot to the USB image
switch: boot usbflash0:cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
Corrupt packages.conf
I�ve seen instances in which packages.conf continually calls files that no longer exist in flash. You can boot to an image from ROMMON just fine, however upon reload it will call packages.conf again and fail to boot. If this happens, I recommend backing up the existing packages.conf file by renaming it or deleting all together. NOTE: The previous step is mandatory as the next step will fail if a .conf file already exists. You can then run an BUNDLE extract which will create a new packages.conf file.
1. Once booted up (in BUNDLE mode) verify the files in flash
Switch#dir flash:
Directory of flash:/
15500 -rwx        1243   Aug 1 2013 07:04:02 +00:00 packages.conf
2. Copy or rename the existing packages.conf file
Switch#cp flash:packages.conf flash:packages.conf.badop flash:packages.conf flash:packages.conf.bad
Destination filename [packages.conf.bad]?
Copy in progress...C
1243 bytes copied in 0.140 secs (8879 bytes/sec)
Switch#dir flash:
Directory of flash:/
15500 -rwx        1243   Aug 1 2013 07:04:02 +00:00 packages.conf
15502 -rw-        1243   Aug 1 2013 11:53:51 +00:00 packages.conf.bad
3. Delete packages.conf
Switch#del flash:packages.conf
Delete filename [packages.conf]?
Delete flash:/packages.conf? [confirm]
4. Expand BUNDLE to create new packages.conf
Switch#software expand running switch 1 to flash:
Preparing expand operation ...
[1]: Expanding the running bundle
[1]: Copying package files
[1]: Package files copied
[1]: Finished expanding the running bundle
5. Verify boot
Switch#show boot
Switch 1
Current Boot Variables:
BOOT variable does not exist
Boot Variables on next reload:
BOOT variable = flash:packages.conf;
Manual Boot = no
Enable Break = no
6. Reload Switch
switch#reload
Reload command is being issued on Active unit, this will reload the whole stack
Proceed with reload? [confirm]
Emergency Recovery
If all else fails, the 3850 has a �trap door� method of recovering the system. All you need is a terminal connected to the management port of the 3850 running a tftp server. Download a valid image file from CCO and store it in the root of the tftp server.
On the switch, you are most likely stuck at the switch: prompt. If however you are in some sort of boot loop, you can use the �mode� button on the front of the switch to break the cycle. Simply hold the button for roughly 10 seconds and the switch should react by breaking the cycle and stopping at a switch: prompt. The following steps will walk you through the recovery:
1. Set the switch IP
switch: set IP_ADDR 192.0.2.123/255.255.255.0
2. Set the default gateway
switch: set DEFAULT_ROUTER 192.0.2.1
3.Test connectivity by pinging terminal (that contains the tftp server)
switch: ping 192.0.2.1
ping 192.0.2.1 with 32 bytes of data ...
Host 192.0.2.1 is alive.
4. Verify that the emergency files exist in the switches file system
switch: dir sda9:
Directory of sda9:/
    2 drwx 1024       .
    2 drwx 1024       ..
   11 -rwx 18958824   cat3k_caa-recovery.bin
36903936 bytes available (20866048 bytes used)
5. Run the emergency install feature
switch: emergency-install tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
The bootflash will be erased during install operation, continue (y/n)?Y
Starting emergency recovery (tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin)...
Reading full image into memory......................done
Nova Bundle Image
Kernel Address    : 0x6042f5d8
Kernel Size       : 0x317ccc/3243212
Initramfs Address : 0x607472a4
Initramfs Size    : 0xdc6546/14443846
Compression Format: .mzip
Bootable image at @ ram:0x6042f5d8
Bootable image segment 0 address range [0x81100000, 0x81b80000] is in range [0x80180000, 0x90000000].
File "sda9:cat3k_caa-recovery.bin" uncompressed and installed, entry point: 0x811060f0
Loading Linux kernel with entry point 0x811060f0 ...
Bootloader: Done loading app on core_mask: 0xf
### Launching Linux Kernel (flags = 0x5)
Initiating Emergency Installation of bundle tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
Downloading bundle tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin...
Validating bundle tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin...
Installing bundle tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin...
Verifying bundle tftp://192.0.2.1/cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin...
Package cat3k_caa-base.SPA.03.02.02.SE.pkg is Digitally Signed
Package cat3k_caa-drivers.SPA.03.02.02.SE.pkg is Digitally Signed
Package cat3k_caa-infra.SPA.03.02.02.SE.pkg is Digitally Signed
Package cat3k_caa-iosd-universalk9.SPA.150-1.EX2.pkg is Digitally Signed
Package cat3k_caa-platform.SPA.03.02.02.SE.pkg is Digitally Signed
Package cat3k_caa-wcm.SPA.10.0.111.0.pkg is Digitally Signed
Preparing flash...
Syncing device...
Emergency Install successful... Rebooting
Restarting system.
Please let me know if you have any further questions.
HTH
Regards
Inayath

Cisco 3850 SSO and NSF failover time

Dear Member,
I m trying to setup a network with few second fail-over with Cisco 3850 stack, C3850 support SSO and NSF on OSPF.
However, when the Master fails, Slave take up the role and re-learn routing information and around 10 sec to fail-over.
May any brothers have this experience and 10 sec fail-over should be the normal behavior or can be enhance?
Attach diagram for reference.
Regards
Russ

Great, adding the following command and only have 1 ping loss with end to end.
=========================
Stack-mac persistent timer 0
router ospf 1
nsf cisco enforce global
========================

Cisco 3850 stackpower issue

Hello.
I have 5 switches 3850. I want to powerstack it. I read currently only 4 switches are allowed((( I upgraded switches to Version 03.03.03.SE. I tried to set stack of 5 switches but log was generated:
%PLATFORM_STACKPOWER-3-INVALID_TOPOLOGY: Invalid power stack topology observed by switch 4. More than four switches are connected in ring topology
Can anyone say whether I connect switches incorrectly or I can do nothing for now?
Thanks

You can either leave it at stand-alone or break up your power stack into two: power stack three together and power stack the last two together.
The decision is all yours. I present you the options. :D

CISCO 3850 PoE+ SWITCHES

Hi,
I have a device which work on PoE (IEEE802.3af).
Is it possible to sent the data + power to the PoE device by use of Cisco PoE+ (IEEE802.3at) i.e Could PoE+ Switches (IEEE802.3at) support the PoE Devices (IEEE802.3af).
Please help.
Thanks
Amey

See this:
3850 PoE, PoE+, and Cisco UPOE Ports
The PoE+ and Cisco Universal Power Over Ethernet (Cisco UPOE) ports use the same connectors as described in the "10/100/1000 Ethernet Ports" section.
They provide:
•PoE+ ports: Support for IEEE 802.3af-compliant powered devices (up to 15.4 W PoE per port) and support for IEEE 802.3at-compliant powered devices (up to 30 W PoE+ per port). The maximum total PoE power in a 1RU switch is 1800 W.
•Cisco UPOE ports: Support for powered devices on all four Ethernet signal pairs (up to 60 W Cisco UPOE per port).
•Support for Cisco-enhanced PoE.
http://www.cisco.com/en/US/docs/switches/lan/catalyst3850/hardware/installation/guide/HIGOVERV.html#wp1351798

CISCO 3850 PoE+ SWITCH

Hi,
I have a device which is a PoE device (IEEE802.3af). Can Cisco 3850 PoE+ (IEEE802.3at) support both data and power to Normal PoE (IEEE802.3af) devices.
Please confirm.
Thanks
Amey

Hi,
See this:
3850 PoE, PoE+, and Cisco UPOE Ports
The PoE+ and Cisco Universal Power Over Ethernet (Cisco UPOE) ports use the same connectors as described in the "10/100/1000 Ethernet Ports" section.
They provide:
•PoE+ ports: Support for IEEE 802.3af-compliant powered devices (up to 15.4 W PoE per port) and support for IEEE 802.3at-compliant powered devices (up to 30 W PoE+ per port). The maximum total PoE power in a 1RU switch is 1800 W.
•Cisco UPOE ports: Support for powered devices on all four Ethernet signal pairs (up to 60 W Cisco UPOE per port).
•Support for Cisco-enhanced PoE.
http://www.cisco.com/en/US/docs/switches/lan/catalyst3850/hardware/installation/guide/HIGOVERV.html#wp1351798
Regards,

Catalyst 3850 Cross-Stack EtherChannel

On 3850 configuration guide, I came across PAgP desirable mode is not supported in the switch stack (cross-stack EtherChannel).
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/layer2/configuration_guide/b_lay2_3se_3850_cg/b_lay2_3se_3850_cg_chapter_0101.html
But on Q&A document, it mentioned 3850 supports PAgP.
Q. What cross-stack EtherChannel link bundling protocols are supported?
A. The Cisco Catalyst 3850 supports Cisco Port Aggregation Protocol (PAgP) and industry-standard IEEE 802.3ad Link Aggregation Control Protocol (LACP). Other 3750 Series Switches support only LACP for cross-stack EtherChannel.
Seems like both statements are contradicting.
Can someone shed some light on this?
Thank you.

Hi, adimakmur
Cisco Catalyst 3850 Cross-Stack EtherChannel can be PAgP+ and can be used for VSS dual active detection.
In last deployment of 3850 we use Cross-Stack EtherChannel and use it as trusted for VSS dual active detection.
c6500-V#sh switch virtual dual-active pagp
PAgP dual-active detection enabled: Yes
PAgP dual-active version: 1.1
----skiped----
Channel group 106 dual-active detect capability w/nbrs
Dual-Active trusted group: Yes
Dual-Active Partner Partner Partner
Port Detect Capable Name Port Version
Te1/7/7 Yes c3850-307 Te1/1/3 1.1
Te2/7/7 Yes c3850-307 Te2/1/3 1.1
---skiped----
c6500-V#sh etherchannel 106 protocol
Protocol: PAgP
c3850-307#sh etherchannel port-channel
Channel-group listing:
Group: 1
Port-channels in the group:
Port-channel: Po1
Age of the Port-channel = 235d:20h:50m:10s
Logical slot/port = 12/1 Number of ports = 2
GC = 0x00010001 HotStandBy port = null
Port state = Port-channel Ag-Inuse
Protocol = PAgP
Port security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Te1/1/3 Desirable-Sl 0
0 00 Te2/1/3 Desirable-Sl 0
Time since last port bundled: 169d:04h:58m:49s Te1/1/3
Time since last port Un-bundled: 169d:05h:00m:47s Te1/1/3

Cisco 3850 SSID qos

Hello all)
I have the task to configure QoS for SSID. I have 1602E points and 4 SSIDs per point. I want to priorities one of them. APs are connected to cisco 3850. Please help me how can I do it?

Bandwidth and Priority Management at SSID Level
The next step is to take care of the QoS policy at the SSID level. This step applies to both the Catalyst 3850 switch and to the 5760 controller. This configuration assumes that voice and video traffic is identified through the use of class-map and access-lists and is tagged properly. However, some incoming traffic that is not targeted by the access-list may not display its QoS marking. In that case, you can decide if this traffic should be marked with a default value or left untagged. The same logic goes for traffic already marked but not targeted by the class-maps. Use the default copy statement in a table-map in order to ensure that unmarked traffic is left unmarked and that tagged traffic keeps the tag and it not remarked.
Refer the link for the Complete Configuration : www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/116479-configure-qos-00.html#anc15

Cisco 3850 Mobility Agent unable to connect clients

Hi
We are trying to use Cisco 3850 as Mobility agents with 5760. We can't seem to get the clients to authenticate to the radius server. We don't even see them appear in the radius logs.
We have defined the radius server and the profile
wlan Wireless 2 WAP
aaa-override
accounting-list Radius
client vlan wireless
security dot1x authentication-list Radius
session-timeout 1800
no shutdown
radius server Primary
address ipv4 x.x.x.x auth-port 1812 acct-port 1813
timeout 5
retransmit 2
key 7 ........
radius server Primary
address ipv4 x.x.x.x port 1812 acct-port 1813
timeout 5
retransmit 2
key 7 .........
The client appears to connect to the AP but can't authenticate so gets kicked off
If we do a test aaa group username password then it says that it's sucessful.
In the debug we get 802.1X required but then it never seems to get any further.

Alright, so I finally figured out the issue with this. I had a Mobility Anchor set on the guest WLAN and once I removed that all started working again.
What is Mobility Anchor?
A. Mobility Anchor, also referred to as Guest tunneling or Auto Anchor Mobility, is a feature where all the client traffic that belongs to a WLAN (Specially Guest WLAN) is tunneled to a predefined WLC or set of controllers that are configured as Anchor for that specific WLAN. This feature helps to restrict clients to a specific subnet and have more control over the user traffic. Refer to the Configuring Auto-Anchor Mobility section of Cisco Wireless LAN Controller Configuration Guide, Release 7.0 for more information on this feature.

Cisco 3850 and Licences for WLC??

Hello
We have a client who needs a new switch which is capable of intervlan routing and also a WLC.
I am thinking a 48 port 3850 with IP Base which gives intervlan routing and WLC support.
However I am not sure if we need to purchase additional AP licences or whether they are built in?
Cheers

In 3850 WLC functionality, your switch stack could act as MA (Mobiity Agengt) or MC (Mobility Controller). AP license required for your 3850, only if it is acting as MC. (for MA you do not require any AP licenses). Max 50 AP can handle by given 3850 switch stack. For MC functionality minimum you required IPbase image. (not LANbase)
So it is based on your design you need to purchase 3850 AP license. In your case if it is for a single switch where client want WLC functionality (with no other controller available) then you have to go with AP license depend on how many AP they want to deploy.
BRKCRS-2889 CiscoLive material will give you good overview of this new Converged Access Deployment model & MA/MC functionalilty & few design options.
HTH
Rasika
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How can i configure hsrp in cisco 3850 switch please guide me

how can i configure hsrp in cisco 3850 switch please guide me

Hi Mauleshg,
Please the below mention link to configure Hsrp hope this will help you.
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/ip/configuration_guide/b_fhrp_3se_3850_cg/b_fhrp_3se_3850_cg_chapter_010.html
Br.
Mohseen Patel

Cisco 3850 Power Stack

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