2960 Switch Console Hangs

I am having issues with Catalyst 2960 Switch Console. Switch boots up fine and the process shows up on the console. But after the boot-up, console stops responding. It also does not respond to Break sequence at the boot-up. Any solutions? I am using Putty with 9600 8n1 settings.
Thanks
Hassan

Check the settings:
Please confirm if it helps
Parvesh
Remember marking helpful posts.

Similar Messages

Can not administer Catalyst 2960 switch via console

Hello,
I want to configure my switch via console cable, the switch boots up normally, and there are no configurations present on the switch. However, anything I type does not appear on the terminal client. I used several terminal clients (TeraTerm, PuTTY, HyperTerminal), all latest versions as well as different PCs. I even forced the switch to rommon mode, still, anything I type does not appear on the terminal client.
Here's the output of TeraTerm:
Boot Sector Filesystem (bs) installed, fsid: 2
Base ethernet MAC Address: e8:40:40:06:f0:80
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash...
flashfs[0]: 542 files, 19 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 11565056
flashfs[0]: Bytes available: 20948992
flashfs[0]: flashfs fsck took 11 seconds.
...done Initializing Flash.
done.
Loading "flash:/c2960-lanbasek9-mz.122-50.SE5/c2960-lanbasek9-mz.122-50.SE5.bin"...@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
File "flash:/c2960-lanbasek9-mz.122-50.SE5/c2960-lanbasek9-mz.122-50.SE5.bin" uncompressed and installed, entry point: 0x3000
executing...
              Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
           cisco Systems, Inc.
           170 West Tasman Drive
           San Jose, California 95134-1706
Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(50)SE5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 28-Sep-10 13:44 by prod_rel_team
Image text-base: 0x00003000, data-base: 0x01400000
Initializing flashfs...
fsck: Disable shadow buffering due to heap fragmentation.
flashfs[1]: 542 files, 19 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 32514048
flashfs[1]: Bytes used: 11565056
flashfs[1]: Bytes available: 20948992
flashfs[1]: flashfs fsck took 2 seconds.
flashfs[1]: Initialization complete....done Initializing flashfs.
Checking for Bootloader upgrade.. not needed
POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed
POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed
POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed
POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed
POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed
POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed
Waiting for Port download...Complete
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].
cisco WS-C2960-24TT-L (PowerPC405) processor (revision J0) with 65536K bytes of memory.
Processor board ID FOC1510X4ZQ
Last reset from power-on
1 Virtual Ethernet interface
24 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : E8:40:40:06:F0:80
Motherboard assembly number     : 73-12600-05
Power supply part number        : 341-0097-03
Motherboard serial number       : FOC15094MZG
Power supply serial number      : DCA150583WQ
Model revision number           : J0
Motherboard revision number     : A0
Model number                    : WS-C2960-24TT-L
System serial number            : FOC1510X4ZQ
Top Assembly Part Number        : 800-32797-01
Top Assembly Revision Number    : F0
Version ID                      : V09
CLEI Code Number                : COM3L00BRE
Hardware Board Revision Number : 0x0A
Switch Ports Model              SW Version            SW Image
*    1 26    WS-C2960-24TT-L    12.2(50)SE5           C2960-LANBASEK9-M
Press RETURN to get started!
*Mar 1 00:00:31.381: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Mar 1 00:00:32.556: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Mar 1 00:00:35.802: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan99, changed state to down
*Mar 1 00:00:35.861: %SYS-5-CONFIG_I: Configured from memory by console
*Mar 1 00:00:36.012: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(50)SE5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 28-Sep-10 13:44 by prod_rel_team
*Mar 1 00:00:36.037: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Mar 1 00:00:37.060: %LINK-5-CHANGED: Interface FastEthernet0/6, changed state to administratively down
*Mar 1 00:00:37.094: %LINK-5-CHANGED: Interface FastEthernet0/7, changed state to administratively down
*Mar 1 00:00:37.127: %LINK-5-CHANGED: Interface FastEthernet0/8, changed state to administratively down
*Mar 1 00:00:37.161: %LINK-5-CHANGED: Interface FastEthernet0/9, changed state to administratively down
*Mar 1 00:00:37.195: %LINK-5-CHANGED: Interface FastEthernet0/10, changed state to administratively down
*Mar 1 00:00:37.228: %LINK-5-CHANGED: Interface FastEthernet0/11, changed state to administratively down
*Mar 1 00:00:37.262: %LINK-5-CHANGED: Interface FastEthernet0/12, changed state to administratively down
*Mar 1 00:00:37.362: %LINK-5-CHANGED: Interface FastEthernet0/13, changed state to administratively down
*Mar 1 00:00:37.362: %LINK-5-CHANGED: Interface FastEthernet0/14, changed state to administratively down
*Mar 1 00:00:37.362: %LINK-5-CHANGED: Interface FastEthernet0/15, changed state to administratively down
*Mar 1 00:00:37.404: %LINK-5-CHANGED: Interface FastEthernet0/16, changed state to administratively down
*Mar 1 00:00:37.446: %LINK-5-CHANGED: Interface FastEthernet0/17, changed state to administratively down
*Mar 1 00:00:37.488: %LINK-5-CHANGED: Interface FastEthernet0/18, changed state to administratively down
*Mar 1 00:00:37.497: %LINK-5-CHANGED: Interface FastEthernet0/19, changed state to administratively down
*Mar 1 00:00:37.539: %LINK-5-CHANGED: Interface FastEthernet0/20, changed state to administratively down
*Mar 1 00:00:37.572: %LINK-5-CHANGED: Interface FastEthernet0/21, changed state to administratively down
*Mar 1 00:00:37.606: %LINK-5-CHANGED: Interface FastEthernet0/22, changed state to administratively down
*Mar 1 00:00:37.639: %LINK-5-CHANGED: Interface FastEthernet0/23, changed state to administratively down
*Mar 1 00:00:37.673: %LINK-5-CHANGED: Interface FastEthernet0/24, changed state to administratively down
*Mar 1 00:00:37.690: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down
*Mar 1 00:00:37.715: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
After the last line, I can not type any command at all. I encountered this on three 2960 switches that we have here in our laboratory. Can anybody help me on how I can get access to the switch via console?
Thanks in advance.

Have You Check your console Cable.
also
If u are using USB to Serial check driver are properly installed.
else
See Helpful Cisco Documentation
http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008010ff7a.shtml
Do Rate Helpful Posts

802.1x caused Switch to hang - Memory too low

Hi all,
Anyone experienced this before while turning on flex authentication (802.1x, MAB, Web Auth), causing the switch too hang. When the switch hang, I can't even telnet to switch or even console into the switch. The message I am getting from the console is "Memory too low, please try again later".
It happens weeks after 802.1x was enable on the switch, can anyone share their experience on this? Thanks.

Any luck with this??
We have quite a few 4500's doing the same thing.

Aironet 1142 as supplicant to 2960 switch (NEAT/CISP/MAB)

Hello!
First, my configuration, (then the problem down below):
I have an Aironet 1142 with mulitple SSIDs [mapped to VLANs] connected to Gi1/0/2 on a 2960 switch in a user-accessible area. This switch is uplinked to another 2960 switch in a wiring closet, and the Microsoft NPS server is connected to the wiring closet 2960.
Aironet -- 2960 [user area] --- 2960 [closet] -- NPS RADIUS
I have the user-area 2960 configured as an authenticator switch for dot1x, and port Gi1/0/2 is authenticating the Aironet via MAB to RADIUS. RADIUS is sending VSA device-traffic-class=switch to the 2960. The closet-2960 has no special 802.1x configuration, nor is it an authenticator swtich; it just has a manually-configured trunk port to the user-area 2960 [for now; i'm trying to take this one step at a time!].
The user-area 2960 correctly converts port Gi1/0/1 to a trunk port when the Aironet is authenticated [via MAB]. The Aironet boots up, the port is opened, I can ping the Aironet on the native VLAN, and all is well [so it seems]. The Aironet's dot11Radio is configured for two SSIDs and mapped to VLANs, which are being spanned via STP thru the user-area 2960 and the closet-2960. STP is correct and verified on all switches.
I have DHCP snooping configured on the user-area 2960 but only for VLAN 1 [but NOT the wireless user VLANs], the trunk port to the closet 2960 is a trusted port. Hosts on the wired ports on the user-area 2960 are able to get DHCP IPs. On the Aironet, "show dot11 associations" shows hosts on the SSIDs are getting DHCP addresses. Again, I am *NOT* running dhcp snooping on wireless SSID VLANs [i read elsewhere that can cause problems as users roam between Aironets].
I do have CISP configured on the user-area 2960. I do not have CISP configured on the closet-2960 [best I can tell, that's not required at this stage, but I could be wrong].
Despite the alleged documentation, I could not get the Aironet to use a dot1x credentials profile to authenticate to NPS/RADIUS as an 802.1x supplicant, which is why I resorted to MAB for this exercise. The Aironet simply would not run dot1x [best I could tell]. The documentation and configuration didn't seem complex, so I was quite confused.
I have upgraded the Aironet to the latest 12.4(25d)JA2 software, and the 2960 is at 12.2(55)SE7 [i saw 12.2(58) has some issues, but i'm willing to be persuaded otherwise, based on sound advice].
Ok, now the problem:
Users on the guest wireless SSID (Vlan 20) say they cannot connect. Yep, classic. VLAN 20 is trunked and spanned to all the sufficient places. The Aironet shows users in the associations list for that SSID with IP addresses from the DHCP server! DHCP snooping is not configured on that VLAN.
I read another support forum post saying CISP and MAB could cause problems with "disappearing" ARP entries. I appear to have that problem. However, the user on the Staff wireless (VLAN 10) has full access. Am I running into a problem with "multi-host" authentication config? Via tcpdump on my firewall, I see nothing but broadcast and multicast traffic coming from a host on VLAN 20. What puzzles me is how I do see *SOME* traffic from a VLAN 20 host on this SSID, but no unicast traffic! Argh!
Since you're going to ask, here is my port config for this AP on the 2960 authenticator switch in the user-area, and the AAA config pieces:
#sh run br | in ip dhcp
ip dhcp snooping vlan 1
no ip dhcp snooping information option
ip dhcp snooping database flash:dhcp_snoop.txt
ip dhcp snooping
#sh ip dhcp snoop
Switch DHCP snooping is enabled
DHCP snooping is configured on following VLANs:
1
DHCP snooping is operational on following VLANs:
1
DHCP snooping is configured on the following L3 Interfaces:
Insertion of option 82 is disabled
   circuit-id default format: vlan-mod-port
   remote-id: ccd5.3947.7980 (MAC)
Option 82 on untrusted port is not allowed
Verification of hwaddr field is enabled
Verification of giaddr field is enabled
DHCP snooping trust/rate is configured on the following Interfaces:
Interface                  Trusted    Allow option    Rate limit (pps)
GigabitEthernet1/0/46      no         no              15
Custom circuit-ids:
GigabitEthernet1/0/48      yes        yes             unlimited
Custom circuit-ids:
GigabitEthernet1/0/52      yes        yes             unlimited
Custom circuit-ids:
#sh run br | incl aaa auth
aaa authentication login default local group rad_eap
aaa authentication dot1x default group radius
aaa authorization console
aaa authorization exec default local group rad_eap
aaa authorization network default group rad_eap local
#sh run int gi1/0/2
interface GigabitEthernet1/0/2
description Wireless Access Points
switchport mode trunk
switchport nonegotiate
srr-queue bandwidth share 1 30 35 5
srr-queue bandwidth limit 50
priority-queue out
authentication host-mode multi-host
authentication order mab dot1x
authentication port-control auto
authentication violation restrict
mab
mls qos trust cos
macro description CISCO_WIRELESS_AP_EVENT
auto qos trust
spanning-tree portfast
#sh int gi1/0/2 sw
Name: Gi1/0/2
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Protected: false
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Appliance trust: none
#sh auth sess int gi1/0/2
            Interface: GigabitEthernet1/0/2
          MAC Address: acf2.c5f2.8e27
           IP Address: 10.100.32.42
            User-Name: acf2c5f28e27
               Status: Authz Success
               Domain: DATA
       Oper host mode: multi-host
     Oper control dir: both
        Authorized By: Authentication Server
           Vlan Group: N/A
      Session timeout: N/A
         Idle timeout: N/A
    Common Session ID: 0A64200B00000CDA41AFBEDF
      Acct Session ID: 0x00000D00
               Handle: 0xDE000CDA
Runnable methods list:
       Method   State
       mab      Authc Success
       dot1x    Not run
#sh mab int gi1/0/2
MAB details for GigabitEthernet1/0/2
Mac-Auth-Bypass           = Enabled
#sh int trunk
Port        Mode             Encapsulation Status        Native vlan
Gi1/0/1     on               802.1q         trunking      1
Gi1/0/2     on               802.1q         trunking      1
Gi1/0/48    on               802.1q         trunking      1
Gi1/0/52    on               802.1q         trunking      1
Port        Vlans allowed on trunk
Gi1/0/1     1-4094
Gi1/0/2     1-4094
Gi1/0/48    1-2,10,20
Gi1/0/52    1-2,10,20
Port        Vlans allowed and active in management domain
Gi1/0/1     1-2,10,20
Gi1/0/2     1-2,10,20
Gi1/0/48    1-2,10,20
Gi1/0/52    1-2,10,20
Port        Vlans in spanning tree forwarding state and not pruned
Gi1/0/1     1-2,10,20
Gi1/0/2     1-2,10,20
Gi1/0/48    2
Gi1/0/52    1-2,10,20
Ok, what am I missing??

The problem lies in the wired Ethernet port on the Aironet. I did not submit that configuration because I thought it was simple and unrelated. Here is what I had:
interface GigabitEthernet0.20
encapsulation dot1Q 20
no ip route-cache
bridge-group 20
no bridge-group 20 source-learning
no bridge-group 20 unicast-flooding
bridge-group 20 spanning-disabled
The correct configuration should have been:
interface GigabitEthernet0.20
encapsulation dot1Q 20
no ip route-cache
bridge-group 20
no bridge-group 20 source-learning
bridge-group 20 spanning-disabled
The line "no bridge-group 20 unicast-flooding" should not be applied to the wired port. That's stupid. With that erroneous command, the wired port will forward only broadcast and multicast traffic! Unicast traffic will be dropped. Oops.
However, I do not understand why applying this to the radio interfaces has no effect there. I have yet to find any conclusive detailed answers, either. Regardless, my original problem is fixed.

CER 7.1 vs 2960S switch

I have CER ver 7.1.1.10000-5 with the latest patches. I installed this one most recently to support the 2960S switch (
ciscocm.cer7_1_1_CSCtj28150.cop.sgn).
My 2960S switch is running IOS version 12.2(53r)SE. This switch is stacked with two members switches.
Why is it that my CER console is only showing ports 2/0/1 - 48? I don't see any ports on the first switch.
Thanks,
Patrick

There still should be a management interface on the second switch with SNMP. Is SNMP configured on the second switch?

SCSM Console Hang with WebEx Connect

I have reviewed all the questions found at this location and although similar setups it looks that there are no resolves. Here is the setup: SCSM 2012 sp2 using console and works like a champ. Installed WebEx Connect and now my SCSM console
hangs when trying to open incidents. Once I remove the webex connect IM client, SCSM console resumes to normal ops and responses.
All the workarounds say rdp to another workstation, etc and is not a resolve. Interesting enough both applications play nice with all other apps and work great independently so its hard to decipher which one is the root cause. My theory is that
they somehow share a dll. Once this is identified, we can actually get coexistence of these two applications. They are mainline apps so I'm perplexed at why either vendors have addressed this issue. It appears to have been going on for the
past year as researched so why isn't anyone doing anything.
Do I have to write a bug request to connect.microsoft.com and then to webex and do their work for them?
Nick

Hi Nick,
Did you put in a request on connect for this? Is this issue resolved for you?
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If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". This posting is provided "AS IS" with no warranties and confers no rights! Always test ANY suggestion
in a test environment before implementing!

Does ip source guard has any syslog or message??(on 2960 switch)

hi everyone , I got a problem that I need to config a secure feature "IP SOURECE GUARD" on 2960 switch
Everthing is ok
But, when the IP-MAC mismatch
I can't receive any SYSLOG from "show log"
Only from "show ip verify source" to know which interface be denied
L2#show ip verify source
Interface Filter-type Filter-mode IP-address       Mac-address        Vlan
Fa0/2      ip-mac       inactive-no-snooping-vlan
Fa0/3      ip-mac       active       deny-all         permit-all         10
Fa0/4      ip-mac       inactive-no-snooping-vlan
Fa0/5      ip-mac       inactive-no-snooping-vlan
Fa0/6      ip-mac       inactive-no-snooping-vlan
Fa0/7      ip-mac       inactive-no-snooping-vlan
Fa0/8      ip-mac       inactive-no-snooping-vlan
Fa0/9      ip-mac       active       192.168.10.1     permit-all         10
Fa0/10     ip-mac       inactive-no-snooping-vlan
does ip source guard has no Features to create LOG ??
or anyone can tell me what I can do that I can receive some message when the "deny-all" situation be triggered
Regards,
Lin

I have exactly the same question : is it possible to have a syslog message when an Ip source guard event occurs on a switch 2960 ?
Is anyone can help us ?

Etherchannel between 2960 switches

Hello All,
I configured etherchannel between two 2960 switches.
Both the switches have SVI with subnet 192.168.2.3 and 192.168.2.4
I have another vlan3 on one of the switch.
so when i created etherchannel between two Gig ports and allowed both the vlans,it gave me an error messg,
Nov 3 12:41:07.332 KSA: %EC-5-CANNOT_BUNDLE2: Gi1/0/19 is not compatible with Gi1/0/20 and will be suspended (vlan mask is different)
Nov 3 12:41:07.339 KSA: %EC-5-CANNOT_BUNDLE2: Gi1/0/19 is not compatible with Po1 and will be suspended (vlan mask is different)
Nov 3 12:41:07.339 KSA: %EC-5-CANNOT_BUNDLE2: Gi1/0/19 is not compatible with Po1 and will be suspended (vlan mask is different)
Nov 3 12:41:07.339 KSA: %EC-5-CANNOT_BUNDLE2: Gi1/0/20 is not compatible with Po1 and will be suspended (vlan m
May i know why....
Thanks

Hello Mudasir
This will be a problem of allowed vlan mismatch. All the interfaces which are going to add in the etherchannel must have same allowed vlan on both sides.
You can check for the allowed vlan on all the interfaces as well as on Port-channel.
You can see the below forum having the same problem:
https://supportforums.cisco.com/discussion/9757346/etherchannel-prob
Regards,
Mukesh Kumar
Network Engineer
Spooster IT Services

How i can calculate the backplane speed & throughput of cisco 48 1G 2960S switch?

How i can calculate the backplane speed & throughput of cisco 48 1G 2960S switch?

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In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Calculate? Calculate for wirespeed/line-rate? If the latter, take all the port bandwidths, and assuming they are duplex, double for necessary fabric bandwidth. I.e. 48 gig ports would need a 96 Gbps fabric. Take all your port bandwidths, and allow 1.448 Mpps per gig (for minimum size Ethernet packets), i.e. 48 gig ports would need 69.5 Mpps. Once you have required fabric bandwidth and PPS, you can compare to vendor's specs.

Unable to update objects in console (hangs on "apply")

Hi,
I seem to be unable to update, create or delete any objects in SCCM console. For example, I can open properties of an existing application, enter some values, but when I click on "Apply", the console hangs and seems to be stuck in that state
forever, but no application crash. If I kill SCCM console task, reopen console and check the properties again, nothing was updated. I am also unable to create new collections, the wizard just seems to work forever (without freezing).
I rebooted our SCCM site server several times and also restarted SQL service (which is running on another server), but no luck.
Under site status, I can't find anything that seems to be related to the issue. I'm unsure what log file to check, has anybody an idea?
I recently uninstalled SUP and WSUS, maybe this is related?
Thanks!

I got this error as a pop-up today for the first time. I updated a value in the properties dialogue of a collection. Did this two times before today, both times nothing happened for about one hour and then the change was commited. Third time I got this:
"The SMS Provider reported an error."
ConfigMgr Error Object:
instance of SMS_ExtendedStatus
CauseInfo = "11";
Description = "Unable to update collection due to SQL error.";
ErrorCode = 3242722566;
File = "e:\\nts_sccm_release\\sms\\siteserver\\sdk_provider\\smsprov\\sspcollection.cpp";
Line = 830;
ObjectInfo = "";
Operation = "PutInstance";
ParameterInfo = "";
ProviderName = "ExtnProv";
SQLMessage = "[HYT00][0][Microsoft][SQL Server Native Client 11.0]Query timeout expired";
SQLSeverity = 0;
SQLStatus = 0;
StatusCode = 2147749889;
Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine.WqlQueryException
The SMS Provider reported an error.
Stack Trace:
at Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine.WqlResultObject.Put(ReportProgress progressReport)
at Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine.WqlResultObject.Put()
at Microsoft.ConfigurationManagement.AdminConsole.SmsDialogData.Put(IResultObject resultObject, List`1 resultObjectsPut, Boolean retainLock)
at Microsoft.ConfigurationManagement.AdminConsole.SmsDialogData.Put(Boolean retainLock)
at Microsoft.ConfigurationManagement.AdminConsole.DialogFramework.Forms.SmsPropertySheet.Put(ActionTrigger trigger)
System.Management.ManagementException
Generic failure
Stack Trace:
at Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine.WqlResultObject.Put(ReportProgress progressReport)
at Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine.WqlResultObject.Put()
at Microsoft.ConfigurationManagement.AdminConsole.SmsDialogData.Put(IResultObject resultObject, List`1 resultObjectsPut, Boolean retainLock)
at Microsoft.ConfigurationManagement.AdminConsole.SmsDialogData.Put(Boolean retainLock)
at Microsoft.ConfigurationManagement.AdminConsole.DialogFramework.Forms.SmsPropertySheet.Put(ActionTrigger trigger)
Maybe someone can get any useful information out of this? I still don't know what to do...

DPM Console hangs when adding servers by Modify Protection Group

Hi Guys,
I hope you can help
I've created several protection groups and need to add a couple more servers to each, but I'm having issues where the DPM console hangs. This is what I'm doing:
Under Protection:
Right Click the Protection Group and select: Modify protection group...
Under "Select Group Members" - expand the server and select it's volume or SQL DB, etc and click Next
Under "Select Data Protection Method", I click Next
Now the MMC stops working. There are no error messages, no unresponsive notifications, it just doesn't do anything.
I can't click Back, Next, Cancel, Help or change any of the other options on this page.
I left it once and went to bed, when I came back 12 hours later, nothing had changed.
I have to open task manager and force close the MMC and reopen but I'm unable to add any additional servers. I can create new Protection Groups but would rather avoid this.
For reference
OS: Server 2012 R2 64bit
DPM: 2012 R2 UR4
The issue occurs using local console over RDP or via the client console on Windows 7
Does anyone have an idea how I can get around this issue?
Thanks
Ryan

After further playing - It's not isolated to adding servers. I actually can't continue past the "Select Data Protection Method" page even if I don't change anything in terms of the selection lists.
Anyone else having issues or know what the problem is?

Weblogic Server 9.2 MP2 - Console hangs on activating changes

Hi,
I have migrated the adminserver to a different server.
After the migration, when we make changes in the weblogic console and try to activate the changes, the console hangs.
The threads are waiting at:
weblogic.management.provider.internal.ActivateTaskImpl
I have tried a few things which include using “Perform Asynchronous Activation”.
But they have not helped.
Environment Details
==============
Operating System : HP-UX Itanium
JDK Version : 1.5
Database Version : Oracle 10g
Any pointers will be highly appreciated.

facing the same problem of console hung
for weblogic 10.3 on Red hat Linux ES 4,
for every change console hangs and restart list shows all managed severs irrespective of changes.
I will appriciate any help to solve this.

Connecting 2 3750 Switches in Stack with 2 2960 switches in full Mesh

Hi Friends,
I have attached a pics which DC design of one of our customer , as network engineer i have design this , so i am responsible for implementing it, now request you all to kindly guide me what would be technical problem i have to face in achieving this and how can i over come .Please be in detail. Waiting for your response .
Regards
Amit Kulshrestha

I have attached modified diagram , please suggest.
The major issue I see is that you have not mentioned whether the 2960's are stacked? For the design to work, they need to be stacked because you cannot create port-channels between them and the Core switches unless then 2960's are stacked.
==> You are right , surely 2960 Switch need to be in stack form.
Personally I would look at more powerful switches than the 2960's, something along the lines of the 3750x range or probably now the 3850's.
==> This is constrain of customer, not our responsibility.
The second issue I see is that your servers are connected to the WAN switches. Is there a reason for this? Usually they would be connected to the core switches.
==> For this If 1 separate 2960 series switch can be used ?.
The final point is that you only have single connections from each of your WAN connections which begs the question as to the purpose of having two WAN switches?
==> Customer is having 1900 series of router , only two ports one used for WAN and other used for LAN.
The objective of having two switches is to provide redundancy/resiliency. If you have only one connection from each WAN then why do you need two switches as there is no redundancy?
==> Customer has agreed to have manual change at the time of failure.

Console hanging when doing LDAP query

Hi,
I am able to connect to a test LDAP server (that has 10 users) from WLS and am
able to see the users in Web interface of the Console under Security>realms>myRealm>users.
This works as desired. No problem.
But when I try to connect to an LDAP server that has 1900 users the console hangs
up and eventually times out. The query strings are all fine because I verified
them using an external LDAP browser.
I checked in MyTestServer>Monitoring>Performance and it is using only 25% of the
memory. So it is not a memory issue. Then I set the logging threshold to 'info'
but there are no special messages.
Now I am wondering where else should I look for to fix this. It works fine when
there are small number of users. But when there are large number of users, WebLogic
just hangs...
Thanks,
Dan

WLS build from BEA comes with SP1. This is what I am using at the moment. So I
am not sure what SP1 are you referring to!
The SP1 for Platform is yet to be released though. But this is more of a server
issue (I think). Also, I looked up in the 'known bugs' section. This is not listed
in there...
* Do you know what exactly is causing this problem?
* Is there a work around?
-Dan
"Noah Campbell" <[email protected]> wrote:
>
This is a known issue. Supposedly a fix is scheduled for Service Pack
1.
"Dan Backman" <[email protected]> wrote:
BTW, I am using WLS 8.1 (platform) server. I tried with 250 users in
the LDAP server
and the WL Admin console still hangs when trying to access MyTestServer>Security>Myrealm>users.
-Dan
"Dan Backman" <[email protected]> wrote:
Hi,
I am able to connect to a test LDAP server (that has 10 users) fromWLS
and am
able to see the users in Web interface of the Console under Security>realms>myRealm>users.
This works as desired. No problem.
But when I try to connect to an LDAP server that has 1900 users the
console hangs
up and eventually times out. The query strings are all fine becauseI
verified
them using an external LDAP browser.
I checked in MyTestServer>Monitoring>Performance and it is using only
25% of the
memory. So it is not a memory issue. Then I set the logging threshold
to 'info'
but there are no special messages.
Now I am wondering where else should I look for to fix this. It works
fine when
there are small number of users. But when there are large number ofusers,
WebLogic
just hangs...
Thanks,
Dan

When mount MDM server on MDM console...MDM Console hangs.

Hi,
when i try to mount MDM server on MDM console, MDM Console hangs and then i have to stop MDM console with task manager.
For this i have tried with restarting MDM server - then also issue was not resolved, then i have rebooted the server, then issue resolved.
But rebooting the server is not permanent solution, this problem occurs everything next 3-4 days.
Please let me know the cause and it's solution if anyone has faced the similar issue.
---------------Server details----------------
SAP MDM 7.1SPS11
OS - Suse Linux
DB - MaxDB
MDM Console is also SPS11
Thanks and Regards,
Murtaza Najmi

Hi Murtaza,
This may be due to the memory full issue. It is advisable to allocate appropriate memory in the RAM where server is running. Generally it will be done by the DB team or Linux/unix team. Raise this ticket to your concerned teams.
Thanks,
Vinoth

2960 Switch Console Hangs

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