3850 Stack EIGRP Problem

I am seeing strange behavior from a 3850 stack running EIGRP to a couple of 4507's. Let me start out by saying that over the past couple of weeks, we have replaced 5 stacks using the same configuration template, code version, etc. with no issues. Before we execute the change to install these switches, we always run failover testing to prove routing. Last night, on the 6th switch stack, failover testing did not succeed. Maybe you can help me figure out why.
Here is what happened. I have a loopback configured on the stack. We connect the stack to each of the 4507's at the distribution layer and bring up an eigrp adjacency. I start a continuous ping from another site to the loopback. Then we pull the first link and the ping continues successfully. Plug it back in, bring up the adjacency. Then we pull the second uplink and the ping begins failing (TTL Lost in transit). The route at the source of the ping was lost so it was using the default route which led to nowhere. When I check the route against the table on the 4507's the subnet is not in the table but the adjacency is up.
I have attached a topology drawing of the relevant devices (as I see it). Again, we never experienced this issue with the 5 previous stacks which are all connected to the 4507's the same way.

Joshua
So you have equal cost paths on the 4507 to the loopback. You pull the first link and the ping continues because it still has one route. You reconnect the link and an adjacency is formed but no routes are passed from the 3850 to the 4500 and then when you pull the second link the only remaining routes is lost on the 4507 ?
When you plug the first link back in -
1) what do you see in the EIGRP topology tables on the 4507
2) You may need to run debugging on EIGRP to see what is happening from the 4500 and 3850 end
Jon

Similar Messages

3850 stack problem - duplicate IP

I have a 3850 stack running ip services on version 03.02.03.SE of IOS-XE. I have multiple SVI's on the stack and getting duplicate ip address messages in the logs.
I have checked that the stack has come up properly and they are both reporting ready and are active/standby. I have recreated the stack a couple of times and each time its the same.
Any ideas? Bug maybe?

I have added this command on all the physical ports on both stacks. Still getting the duplicate address messages in the log.
Anything else I can look at? As I say, the stack looks fine and the IP addresses it is complaining about only exist on the SVI on the ipservices stack.
There is a newer version of IOS-XE that is recommended on the Cisco site. Should I go for this?

3850 Stack not displayed correctly in CiscoView 6.1

HI,
our customer installed lms 4.2, updated it to 4.2.5 and applied the Maintenance_Release_4_2_5_01_LNX. Its a fresh installation, so there are no previous data. After a discovery via SNMPv3 the 3850 (stacks with 2 or 3 units) show up in CiscoView but only one unit, the others are missing. When I take a look in the fan status, it displays the fan status of the other stack members, so the stack is recognized, but not displayed...
Installed Packages:
CiscoView version is 6.1.156
Cat3850.cv50.v1-0.zip (installed with the 4.2.5 update)
Anybody got an idea how to fix this?
Thanks!

The reason why the C3850 switch stack is showing as standalone in LMS CiscoView is because
it's returning sysObjectID as standalone.
It should return as 1.3.6.1.4.1.9.1.1745 --cat38xxstack
While, if you poll it for sysObjectID, the Catalyst 3850 stack switches will be returning OID 1.3.6.1.4.1.9.1.1641.
This is an IOS bug "CSCul00003 - Incorrect Sys OID for Cat3850 Stack device".
Unless this bug is fixed, LMS will not be able to show it as stack device.
You can try to check if you can manually change the device identity to cat38xxstack from Inventory > add/edit device > edit identity.
Else we need to wait for the fix of this bug.
-Thanks
Vinod

Hosts no longer obtaining ip address on switch in 3850 stack

I have a six switch 3850 stack that has been in production for over a month now, and everything is running normal. Last week, hosts plugged into one of the switches stopped working, the hosts are not getting an IP address (this is access layer so PC's and phones). In addition, if I look at the MAC address table for a port, I am not seeing a MAC address.
All of them are running 03.03.03SE cat3k_caa-universalk9 .
I am thinking this is hardware related, only because on occasion I see the following messages in the logs:
Dec 17 12:21:18.052: %IOSXE-3-PLATFORM: MEMBER: 5 process fed: : -Traceback=1#88b11e4e26f5ac75f4f2f18f023e5220 :550E7000+3B9240 ngwcutils:2AF2C000+BE94 ngwcutils:2AF2C000+DA9C pthread:2E3C2000+5DC8
Also, I have a phone in a port on this switch for troubleshooting. When I removed the service-policy from the port to rebuild the port configuration, I received this message:
%FED_QOS_ERRMSG-3-QUEUE_BUFFER_HW_ERROR: MEMBER: 5 fed: Failed to allocate buffers for Gi5/0/1: code 18.

It could also be a software issue (bug). Open a ticket with TAC and send them the logs so they can help you resolve the issue.
HTH

3850 stack member has no mac address.

I have a strange issue where a member in my 3850 stack has no mac address. This occurred after at duplicate address was discovered on the management interface. We have reboot the switch but no luck. still the same. see below:
BTRBRGBB1535A_Stack1#sho sw de
Switch/Stack Mac Address : 5ca4.8a0c.2d80 - Local Mac Address
Mac persistency wait time: Indefinite
                                             H/W   Current
Switch#   Role    Mac Address     Priority Version State
*1       Active   5ca4.8a0c.2d80     1      V02     Ready
2       Member   0000.0000.0000     0      0       Provisioned
         Stack Port Status             Neighbors
Switch# Port 1     Port 2           Port 1   Port 2
1       DOWN       DOWN             None     None
Any help would be appriciated.

2 Member 0000.0000.0000 0 0 Provisioned
It's not "strange". It's a normal behaviour because the 2nd stack member hasn't joined the stack yet. It could be the that the 2nd stack member isn't powered up or it's not cabled properly.

4500 R+E with sup 8 vs. (3850 stack + 5508 WLC)

I got into discussion about upgrade our 3750 stack, 4404 WLC, less than 50 APs (APs spread out over MPLS WAN). I'm planning to get 4510 R+ E with 2 sup 8, but another opinion talked me down to 3850 stack with 5508 WLC. Basically, his argument is 3850 stack can do everything 4500 R+E can do, plus it's not hulky as 4500. My argument is I like unify access since sup 8 built in WLC and we don't have to get 5508. I know there're more 4500 R+E and respect his argument. Does anyone has input on these setup giving pricing is not much different between setup.
Thanks
Kevin

In my honest opinion, if you are posted this solution here, you are smelling something is off. I hate to be a bearer of bad news. It is.
We went through the same exercise 2 years ago. We wanted to upgrade our legacy 3750/3750G to 3750X and we found out that if we were to get a stack of four (or more ) 3750X, it is cheaper (much, much cheaper) to get a 4510R+E bundle (with Sup7E included) and associated line cards on top. Just to note, the 3750X and 3850 have the same price. The Sup7E and Sup8E have the same price.
Don't ask me why your consultant wanted you to get 3850. I am refraining myself putting two theories in here.

3850 Stack and Stack Priority

Hi,
Question regarding a Cisco 3850 & Stack .
I´ve two 3850 switches stacked.
sh switch
Switch/Stack Mac Address : c025.5cb9.1b80 - Local Mac Address
Mac persistency wait time: Indefinite
                                             H/W   Current
Switch#   Role    Mac Address     Priority Version State
*1       Active   c025.5cb9.1b80     1      J0      Ready
2       Standby c025.5cb7.c480     1      J0      Ready
Now I will change the priority from switch 1 from 1 to 15 but I can´t do this:
(config)#switch 1 ?
provision Configure Switch provision / offline confi NMTSL3CORE1
I can´t use the command : switch 1 priority 15 as exmaple . Why ?
Thanks for help.
Cheers

See below :
sh ver
Cisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 03.03.01SE RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Thu 05-Dec-13 10:15 by prod_rel_team
ROM: IOS-XE ROMMON
BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 1.2, RELEASE SOFTWARE (P)
NMTSL3CORE1 uptime is 2 hours, 57 minutes
Uptime for this control processor is 2 hours, 59 minutes
System returned to ROM by reload at 11:53:48 CET Mon Dec 16 2013
System image file is "flash:packages.conf"
Last reload reason: reload
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
[email protected].
License Level: Ipbase
License Type: Permanent
Next reload license Level: Ipbase
cisco WS-C3850-24P (MIPS) processor with 4194304K bytes of physical memory.
Processor board ID FOC1737X0T4
4 Virtual Ethernet interfaces
56 Gigabit Ethernet interfaces
8 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
250456K bytes of Crash Files at crashinfo:.
250456K bytes of Crash Files at crashinfo-2:.
1609272K bytes of Flash at flash:.
1609272K bytes of Flash at flash-2:.
0K bytes of Dummy USB Flash at usbflash0:.
0K bytes of Dummy USB Flash at usbflash0-2:.
0K bytes of at webui:.
Base Ethernet MAC Address          : c0:25:5c:b9:1b:80
Model Revision Number              : J0
Motherboard Revision Number        : C0
Model Number                       : WS-C3850-24P
Switch Ports Model              SW Version        SW Image              Mode
*    1 32    WS-C3850-24P       03.03.01SE        cat3k_caa-universalk9 INSTALL
     2 32    WS-C3850-24P       03.03.01SE        cat3k_caa-universalk9 INSTALL
Switch 02
Switch uptime                      : 58 minutes
Base Ethernet MAC Address          : c0:25:5c:b7:c4:80
Model Revision Number              : J0
Motherboard Revision Number        : C0
Model Number                       : WS-C3850-24P
Configuration register is 0x102
Cheers

Up-link 2 x 3750 Stack to 4 x 3850 stack

All -
Sorry is this is a rather simple question but I’ve never worked with Stack switches before? I have a remote office that has 3 floors. On one floor we have a 2 3750s in a stack. On another we have a single 3560 and I’m going to be installing a new 3850 stack – the new stack will have 4 x 3850’s...
My question is how should I uplink the other switches to the new stack? In the new stack I have a master a slave and two member switches. Should I create a port channel from the 3750’s and use all available links and spread them across all switches in the new stack, and then do the same with the single switch on the other floor? Or should I create two port-channels from the 3750 and the 3560 to the new 3850 stack?
My thought is that if I create a single port channel form each switch to the new stack I would be basically be removing spanning tree from the environment and basically daisy chaining the switches? Is this a valid solution? Also does the stack act like a chassis where the control plan would be on the master – if so can I spread a interfaces in a port channel across all members in the stack?
Thanks in advance
Mike

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To take advantage of fewest (logical) devices and redundancy, run a dual Etherchannel from your new 3850 to the 3750 stack and the 3650. On both the 3850 and 3750 stacks, insure the same Etherchannel links are on different stack members.
Logically, you would no longer need STP, but keep in running in case anyone accidentally creates a L2 loop.
As to what stack members to terminate uplinks/downlinks on, on 3750s, Cisco recommends avoiding the stack master (not possible on your dual 3750 stack). I don't know what Cisco's recommendations, if any, is for 3850 stacks.
Yes, stacks "appear" much like chassis devices, i.e. stack member ports "appear" like chassis line cards ports.

3850 stack IOS upgrade

Hi,
Is it possible to upgrade the IOS on a cisco 3850 stack in a non disruptive way?
Reloading 1 switch at a time?
Or do you need to reload the entire stack at once, like a 3750 stack?

"And repeat the same command for the second switch"
You actually dont have to do this. First verify that you are in "INSTALL" mode by issuing a "show version." Once you have this file in your local flash, just run the following:
Switch#software install file flash:cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin switch 1-2
**This will expand the .bin file onto your switch and ask you to reload. After reload, you will be on new version
+++++++++++++++++++++++++++
Here is a snippet from my lab – I ran through a quick upgrade from 3.2.0 to 3.2.2
+++++++++++++++++++++++++++
F340.04.23-3850-8#show ver
OS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 03.02.00SE <-------- Version currently running
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Wed 09-Jan-13 21:50 by prod_rel_team
ROM: IOS-XE ROMMON
BOOTLDR: C3850 Boot Loader (C3850-HBOOT-M) Version 1.1, RELEASE SOFTWARE (P)
F340.04.23-3850-8 uptime is 1 minute
Uptime for this control processor is 4 minutes
System returned to ROM by reload
System image file is "flash:packages.conf"
Last reload reason: Reload command
License Level: Ipservices
License Type: Permanent
Next reload license Level: Ipservices
cisco WS-C3850-48P (MIPS) processor with 4194304K bytes of physical memory.
Processor board ID FOC1705V0T8
1 Virtual Ethernet interface
52 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
250456K bytes of Crash Files at crashinfo:.
1609272K bytes of Flash at flash:.
0K bytes of Dummy USB Flash at usbflash0:.
0K bytes of at webui:.
Base Ethernet MAC Address          : 24:01:c7:23:20:00
Motherboard Assembly Number        : 73-12241-08
Motherboard Serial Number          : XXXXXXXX
Model Revision Number              : A0
Motherboard Revision Number        : C0
Model Number                       : WS-C3850-48P
System Serial Number               : XXXXXXXX
Switch Ports Model              SW Version        SW Image              Mode
     1 56    WS-C3850-48P       03.02.00SE        cat3k_caa-universalk9 INSTALL <--- Mode
F340.04.23-3850-8#show flash
-#- --length-- ---------date/time--------- path
2   74410468 Feb 23 2013 21:42:02 +00:00 cat3k_caa-base.SPA.03.02.00SE.pkg
3    2773680 Feb 23 2013 21:42:02 +00:00 cat3k_caa-drivers.SPA.03.02.00.SE.pkg
4   32478044 Feb 23 2013 21:42:02 +00:00 cat3k_caa-infra.SPA.03.02.00SE.pkg
5   30393116 Feb 23 2013 21:42:02 +00:00 cat3k_caa-iosd-universalk9.SPA.150-1.EX.pkg
6   18313952 Feb 23 2013 21:42:02 +00:00 cat3k_caa-platform.SPA.03.02.00.SE.pkg
7   63402700 Feb 23 2013 21:42:02 +00:00 cat3k_caa-wcm.SPA.10.0.100.0.pkg
8       1218 Feb 23 2013 21:42:12 +00:00 packages.conf
9    2097152 Aug 28 2013 17:39:17 +00:00 nvram_config
10        616 Jul 30 2013 05:32:53 +00:00 vlan.dat
11 223734376 Aug 24 2013 08:30:12 +00:00 cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin <--- IOS downloaded from cisco.com
1089032192 bytes available (450543616 bytes used)
F340.04.23-3850-8#software install file flash:cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin switch 1-2 <---add as many switches as you have in the stack here
Preparing install operation ...
[1]: Starting install operation
[1]: Expanding bundle flash:cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
[1]: Copying package files
[1]: Package files copied
[1]: Finished expanding bundle flash:cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin
[1]: Verifying and copying expanded package files to flash:
[1]: Verified and copied expanded package files to flash:
[1]: Starting compatibility checks
[1]: Finished compatibility checks
[1]: Starting application pre-installation processing
[1]: Finished application pre-installation processing
[1]: Old files list:
    Removed cat3k_caa-base.SPA.03.02.00SE.pkg
    Removed cat3k_caa-drivers.SPA.03.02.00.SE.pkg
    Removed cat3k_caa-infra.SPA.03.02.00SE.pkg
    Removed cat3k_caa-iosd-universalk9.SPA.150-1.EX.pkg
    Removed cat3k_caa-platform.SPA.03.02.00.SE.pkg
    Removed cat3k_caa-wcm.SPA.10.0.100.0.pkg
[1]: New files list:
    Added cat3k_caa-base.SPA.03.02.02.SE.pkg
    Added cat3k_caa-drivers.SPA.03.02.02.SE.pkg
    Added cat3k_caa-infra.SPA.03.02.02.SE.pkg
    Added cat3k_caa-iosd-universalk9.SPA.150-1.EX2.pkg
    Added cat3k_caa-platform.SPA.03.02.02.SE.pkg
    Added cat3k_caa-wcm.SPA.10.0.111.0.pkg
[1]: Creating pending provisioning file
[1]: Finished installing software. New software will load on reboot.
[1]: Committing provisioning file
[1]: Do you want to proceed with reload? [yes/no]: yes
[1]: Reloading
///////////// Reload
F340.04.23-3850-8#show ver
Cisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 03.02.02.SE RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Fri 14-Jun-13 19:24 by prod_rel_team
ROM: IOS-XE ROMMON
BOOTLDR: C3850 Boot Loader (C3850-HBOOT-M) Version 1.1, RELEASE SOFTWARE (P)
         F340.04.23-3850-8 uptime is 1 minute
Uptime for this control processor is 7 minutes
System returned to ROM by reload
System image file is "flash:packages.conf"
Last reload reason: Reload command
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
[email protected].
License Level: Ipservices
License Type: Permanent
Next reload license Level: Ipservices
cisco WS-C3850-48P (MIPS) processor with 4194304K bytes of physical memory.
Processor board ID FOC1705V0T8
1 Virtual Ethernet interface
52 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
250456K bytes of Crash Files at crashinfo:.
1609272K bytes of Flash at flash:.
0K bytes of Dummy USB Flash at usbflash0:.
0K bytes of at webui:.
Base Ethernet MAC Address          : 24:01:c7:23:20:00
Motherboard Assembly Number        : 73-12241-08
Motherboard Serial Number          : XXXXXXXXXX
Model Revision Number              : A0
Motherboard Revision Number        : C0
Model Number                       : WS-C3850-48P
System Serial Number               : XXXXXXXXX
--More--                           Switch Ports Model              SW Version        SW Image              Mode
     1 56    WS-C3850-48P       03.02.02.SE       cat3k_caa-universalk9 INSTALL
+++++++++++++++++++++++++
Updating Cisco IOS XE Software
When the switch is in install mode, you can install any new Cisco IOS XE Software bundle by using the software Installcommand.
Note: This command works only when the Cisco Catalyst 3850 Switch is booted in install mode.
Reference:
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12686/deployment_guide_c07-727067.html#wp9000183

Catalyst 3850 Stack VLANs, layer 2 vs. layer 3 design question

Hello there:
Just a generic, design question, after doing much reading, I am just not clear as when to use one or the other, and what the benefits/tradeoffs are:
Should we configure the switch stack w/ layer 3, or layer 2 VLANs?
We have a Catalyst 3850 Stack, connected to an ASA-X 5545 firewall via 8GB etherchannel.
We have about 100 servers (some connected w/ bonding or mini-etherchannels), and 30 VLANs.
We have several 10GB connections to servers.
We push large, (up to) TB sized files from VLAN to VLAN, mostly using scp.
No ip phones, no POE.
Inter-VLAN connectivity/throughput and security are priorities.
Originally, we planned to use the ASA to filter connections between VLANs, and VACLs or PACLs on the switch stack to filter connections between hosts w/in the same VLAN.
Thank you.

If all of your servers are going to the 3850 then I'd say you've got the wrong switch model to do DC job. If you don't configure QoS properly, then your servers will start dropping packets because Catalyst switches have very, very shallow memory buffers. These memory buffers get swamped when servers do non-stop traffic.
Ideally, Cisco recommends the Nexus solution to connect servers to. One of the guys here, Joseph, regularly recommends the Catalyst 4500-X as a suitable (and financial) alternative to the more expensive Nexus range.
In a DC environment, if you have a lot of VM stuff, then stick with Layer 2. V-Motion and Layer 3 don't go hand-in-hand.

[Cisco ISE 1.2 with 3850 - Trunk AP] Problem with MAB

Hi everyone,
After reading some documentation about using MAB in a trunk port with the 3850 I would like to know if someone has implemented ISE policies with a 3850 interface in trunk mode. My problem is that when I try using MAB in a trunk port the mac address of the AP it´s no visible in the "show mac address interface" and because of that the AP is not authenticated in ISE. The thing is that if I use a 2960 everything goes smoothly with no problems!
Let me show you what I have,
interface GigabitEthernet1/0/3
description AP
switchport trunk native vlan 999
switchport mode trunk
trust device cisco-phone
authentication event fail action next-method
authentication host-mode multi-host
authentication order mab dot1x
authentication priority dot1x mab
authentication port-control auto
mab
snmp trap mac-notification change added
snmp trap mac-notification change removed
dot1x pae authenticator
dot1x max-req 4
auto qos voip cisco-phone
service-policy input AutoQos-4.0-CiscoPhone-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
############################################# switch model - 3850 ##################################################
SW1#sh mac address-table interface GigabitEthernet1/0/3
          Mac Address Table
Vlan    Mac Address       Type        Ports
SW1#sh dot1x interface Gi1/0/3
Dot1x Info for GigabitEthernet1/0/3
PAE                       = AUTHENTICATOR
QuietPeriod               = 60
ServerTimeout             = 0
SuppTimeout               = 30
ReAuthMax                 = 2
MaxReq                    = 4
TxPeriod                  = 30
Switch Ports Model              SW Version        SW Image              Mode
*    1 56    WS-C3850-48P       03.03.03SE        cat3k_caa-universalk9 INSTALL
############################################# Different switch model - 2960 ##################################################
interface GigabitEthernet1/0/1
description AP
switchport trunk native vlan 999
switchport mode trunk
srr-queue bandwidth share 1 30 35 5
priority-queue out
authentication event fail action next-method
authentication host-mode multi-host
authentication order mab dot1x
authentication priority dot1x mab
authentication port-control auto
mab
snmp trap mac-notification change added
snmp trap mac-notification change removed
mls qos trust device cisco-phone
mls qos trust cos
dot1x pae authenticator
dot1x max-req 4
auto qos voip cisco-phone
service-policy input AUTOQOS-SRND4-CISCOPHONE-POLICY
SW1#$cation sessions interface GigabitEthernet1/0/1
            Interface: GigabitEthernet1/0/1
          MAC Address: xxxx.xxxx.4a38
           IP Address: 172.18.1.170
            User-Name: xx-xx-xx-xx-4A-38
               Status: Authz Success
               Domain: DATA
       Oper host mode: multi-host
     Oper control dir: both
        Authorized By: Authentication Server
          Vlan Policy: N/A
      Session timeout: N/A
         Idle timeout: N/A
    Common Session ID: 0A18129D000060E39DAE8A8A
      Acct Session ID: 0x0000725D
               Handle: 0x0F00028C
Runnable methods list:
       Method   State
       mab      Authc Success
       Switch Ports Model              SW Version            SW Image
     1 28    WS-C2960X-24PS-L   15.0(2)EX5            C2960X-UNIVERSALK9-M
SW2#sh dot1x interface Gi1/0/1
Dot1x Info for GigabitEthernet1/0/1
PAE                       = AUTHENTICATOR
QuietPeriod               = 60
ServerTimeout             = 0
SuppTimeout               = 30
ReAuthMax                 = 2
MaxReq                    = 4
TxPeriod                  = 30
Am I doing something wrong?
BR,

I know what you mean and I agree with what you are saying :) Nonetheless, at the moment, the official stance from Cisco on this is that 802.1x is not supported on trunk ports. Now one can argue that MAB is different but I think we are just splitting hairs here :)
Like I said, I have gotten stuff to work before but always had some goofy things happening so in general I have stayed away from doing it.
Now in your situation, if your configuration is working fine on the 2960 but not on the 3850, then most likely the issue is with the XE code running on the 3850s. The XE code has been very problematic until recently so you are probably hitting some sort of a defect. As a result, I recommend that you upgrade the switch(es) to 3.3.5 or 3.6.1. Version 3.7.x is also out but it just came out 8 days ago so I would not recommend going to it.
Thank you for rating helpful posts!

MjSip stack UDPDatagramConnection problem

Hi,
I am using mjsip stack on S60 FP3 SDK. The mjsip stack uses UDPDatagramConnection to establish socket connection for sending and receiving sip messages. The problem here is, it reads only 512 content length even though the size of buffer is set properly. What would be the reason. Can any one help me???
Venkat

!!!!!!!!*********UPDATE***********!!!!!!!!!
SUCCESS! Without going into a great deal of detail - and believe me there are plenty. In order to send SIP messages using the MJSIP stack, as well as any JAVA sip stack - I would imagine. You must implement the proper INTERFACES as outlined in the API (JavaDoc)... in mjsip you will use interfaces associated with messageFactory.createRequest & BaseMessageFactory.createMessageRequest then use a couple of methods to modify headers....ex: message.setbody(...) ... INFO messaging can be achieved ...and someone who knows very little JAVA will learn a LOT before accomplishing the task!!!

Stacked plots problem in exe

Hi,
Ive got a problem with creating .exe application where 2nd chart functioning properly.
2nd chart is in subpanel as a stacked plot. I pass via main form numbers of stacked plots. In builder it works perfectly, in .exe not at all..
Any ideas?
Attachments:
WykresOnlineCAN.zip ‏73 KB

Ok sorry I didnt explain well whats the point.
There is no problem with properly "refreshing" of subplot - works fine even without static reference(but thanks anyway, I missed that).
I cannot changed the number of staked plots in the screen(constanly 1) - in editor mode it changes according as number of flaged plots.
The problem is show in the pictures below.
Attachments:
editor mode.png ‏60 KB
in exe.png ‏57 KB

3850 Stack - "Authorization Failed" from Console

Hello,
I have a stack of 3 x 3850s. All connected up via the stack cables. I have the Primary Active Switch, The Standby and Member.
When I connect a console cable into the Primary Active I get access to the stack. If I connect to any of the other 2 switches in the stack via console I just keep seeing authorization failed.
I disconnected all the switches from the stack (it's a lab environment) and was then able to access each switch via console. The issue with Authorization Failed only seems to be apparent when they are stacked. I have another stack of 3850s which allows me access to the CLI from any of the stack members.
Anyone came across this slight issue?

Hi,
Try these commands:
Switch(config)# redundancy
Switch(config-red)# main-cpu
Switch(config-r-mc)# standby console enable
Switch(config-r-mc)#
You need Cisco IOS XE 3.2SE or later.
Link:
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/ha_stack_manager/command_reference/b_hastck_3se_3850_cr/b_hastck_3se_3850_cr_chapter_010.html#wp2758849103
HTH

3850 Stack Question. I'm new to stacks

So, I have two 3850's I want to put in a closet. Do I stack them or just leave them stand alones... My plan was to connect each to the core switch using fiber and users on each switch.
When I conenct the switches using the stackwise cable, I have an active and standby... Is there a way to make the standby a member? is the standby in true "standby" mode? Can I use the ports on the standby switch?
SO many questions Apppriecte any help..
Thanks

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BTW, when you stack your pair, ideally, you still want an uplink from each switch. Depending on L2/L3 configuration, on both your stack and core device, you should be able to use the bandwidth from both links to/from the stack too. Also, if possible, try not to have the two links terminate on same line card on your core device, to avoid that also being a single point of failure.

3850 Stack EIGRP Problem

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