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Archive for the ‘Real World’ Category

« Previous Entries

14 steps to upgrading the ASR9010 from IOS-XR 4.1.1 to IOS-XR 4.1.2

Posted by Peter Kurdziel on February 9, 2012

For the latest upgrade documents please refer to the following page:

http://www.cisco.com/web/Cisco_IOS_XR_Software/index.html

This is an abbreviated version of the upgrade procedures.

1. Check system stability
The following commands should be executed to verify basic system stability before the upgrade/downgrade:

(admin)# show platform [verify that all Nodes are in "IOS XR RUN" state, SPAs in "OK" state,Fan Tray and Power Modules are in “READY” state.]

(admin)# show redundancy[verify that Active & Standby RSP are available and in “ACTIVE role” & “is ready” states]

(admin)# show interface summary [verify that all interfaces are "UP"]

(admin)# show install active [verify that the proper set of packages are active]

(admin)# cfs check
(admin)# clear configuration inconsistency [verify/fix configuration file system in exec and admin mode]

Before upgrade/downgrade, check for the tftp reachability

2. Pre-upgrade tasks
(admin)# show filesystem | inc disk0: [make sure you have enought disk space to perform the upgrade. A minimum 500MB free disk0: disk space is required for the upgrade.]

YOu can free up space by removing old files from disk0:.
- before removing old files issue:
(admin)# install commit
- To view files that will be deleted:
(admin)# install remove inactive test sync
- After ensuring all active packages are ‘committed’, then issue the following command from admin mode:
(admin)# install remove inactive

3. Verify Mgmt LAN access to the router
- RP/0/RSP0/CPU0:router# ping x.x.x.x

4. Back up the running config:
- RP/0/RSP0/CPU0:router#copy running-config tftp://x.x.x.x/running_config.txt

- RP/0/RSP0/CPU0:router#admin
- RP/0/RSP0/CPU0:router(admin)#copy running-config tftp://x.x.x.x/admin-running_config.txt
- RP/0/RSP0/CPU0:router(admin)#exit

5. Disable disk mirroring. Disk mirroring can increase upgrade time. Enable disk mirroring after upgrading the IPS XP.

6. Add the required pies to disk(here I am adding all the pies, add what you need to add). The use of ‘sync’ option will prevent the user from executing any other command during the
install operation, and is recommended.

You can add all the pies with a single command
RP/0/RSP0/CPU0:router(admin)# install add tftp://172.16.1.99/asr9k-mini-p.pie-4.1.2 tftp://172.16.1.99/asr9k-upgrade-p.pie-4.1.2 tftp://172.16.1.99/asr9k-mcast-p.pie-4.1.2 tftp://172.16.1.99/asr9k-mgbl-p.pie-4.1.2 tftp://172.16.1.99/asr9k-mpls-p.pie-4.1.2 tftp://172.16.1.99/asr9kk9sec-p.pie-4.1.2 tftp://172.16.1.99/ asr9k-video-p.pie-4.1.2 tftp://172.16.1.99/asr9k-doc-p.pie-4.1.2 tftp://172.16.1.99/asr9k-optic-p.pie-4.1.2 sync

- this generated errors so I added each pie indvidually

install add tftp://172.16.1.99/asr9k-mini-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-upgrade-p.pie-4.1.2 sync !NOTE use the upgrade pie for versions rpior to 4.0.0 or you will get an error and have to remove the pie before you can continue.
install add tftp://172.16.1.99/asr9k-mcast-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-mgbl-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-mpls-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-k9sec-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-video-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-doc-p.pie-4.1.2 sync
install add tftp://172.16.1.99/asr9k-optic-p.pie-4.1.2 sync

NOTE: if you choose to use the sync command after each line you will have to wait for the pie to be installed before you can run the next install command.
This process while take a while(up to 35 minutes).
Use ‘show install request’ to see the state of the current install.

Once completed yopu will get a message on the screen:
Install operation 46 completed successfully

7. List the inactive packages list using ‘show install inactive summary’
RP/0/RSP0/CPU0:router(admin)# show install inactive summary
Default Profile:
SDRs:
Owner
Inactive Packages:
disk0:asr9k-mini-p-4.1.1
disk0:asr9k-upgrade-p-4.1.1
disk0:asr9k-mcast-p-4.1.1
disk0:asr9k-mgbl-p-4.1.1
disk0:asr9k-mpls-p-4.1.1
disk0:asr9k-video-p-4.1.1
disk0:asr9k-k9sec-p-4.1.1
disk0:asr9k-optic-p-4.1.1
disk0:asr9k-doc-p-4.1.1

- Using the list of inactive packages select and test the activation using the
RP/0/RSP0/CPU0:router(admin)# install activate disk0:asr9k-mini-p-4.1.1 disk0:asr9kupgrade-
p-4.1.1 disk0:asr9k-doc-p-4.1.1 disk0:asr9k-mcast-p-4.1.1 disk0:asr9k-mgbl-p-4.1.1
disk0:asr9k-k9sec-p-4.1.1 disk0:asr9k-mpls-p-4.1.1 asr9k-video-p-4.1.1 asr9k-optic-p-4.1.1
sync test
No actual changes will be made when ‘test’ option is used.

- ‘show configuration removed’ command can be used to view what will be removed as result of the
software upgrade. Removed config can be reapplied using the ‘load config removed .cfg’
command from config mode after the upgrade has been completed.

8. Activate inactive packages added in step 6 using command:

RP/0/RSP0/CPU0:router (admin)# install activate disk0:asr9k-mini-p-4.1.1 disk0:asr9kupgrade-
p-4.1.1 disk0:asr9k-doc-p-4.1.1 disk0:asr9k-mcast-p-4.1.1 disk0:asr9k-mgbl-p-4.1.1
disk0:asr9k-k9sec-p-4.1.1 disk0:asr9k-mpls-p-4.1.1 asr9k-video-p-4.1.1 asr9k-optic-p-4.1.1
sync
- you can also use this command after step 6:
RP/0/RSP0/CPU0:router (admin)# install activate id 46 sync
NOTE:The Router will reload at the end of activation to start using the new packages. This reload
operation will impact traffic for small duration. This will take about 20 minutes.

9. Check to see if there were any failed startup config.
RP/0/RSP0/CPU0:router# show configuration failed startup

10. Verify system stability.

(admin)# show platform [verify that all Nodes are in "IOS XR RUN" state, SPAs in "OK" state,Fan Tray and Power Modules are in “READY” state.]

(admin)# show redundancy[verify that Active & Standby RSP are available and in “ACTIVE role” & “is ready” states]

(admin)# show interface summary [verify that all interfaces are "UP"]

(admin)# show install active [verify that the proper set of packages are active]

(admin)# cfs check
(admin)# clear configuration inconsistency [verify/fix configuration file system in exec and admin mode]

11. Commit the newly activated software and verify:
RP/0/RSP0/CPU0:router (admin)# install commit
RP/0/RSP0/CPU0:router (admin)# show install committed summary

12. Check for which firmware files need to be upgraded:
RP/0/RSP0/CPU0:router(admin)#show hw-module fpd location all

- Auto FPD Upgrade on ASR9K
-Starting 4.0.1; user can configure this option, it will allow automatic fpd upgrade
from 4.0.1 to 4.1.1
- Following shows how to config for Auto FPD Upgrade
RP/0/RSP0/CPU0:router1(admin)#conf
RP/0/RSP0/CPU0:router1(admin-config)#fpd auto-upgrade
RP/0/RSP0/CPU0:router1(admin-config)#commit

RP/0/RSP0/CPU0:router(admin)# show hw-module fpd location all
RP/0/RSP0/CPU0:router(admin)#show fpd package
RP/0/RSP0/CPU0:router(admin)#upgrade hw-module fpd all location all

13. If you disabled disk mirroring in step 5 re-enable it.

14. Clean up.
- To obtain a list of inactive packages and note the names of packages that are not needed:
RP/0/RSP0/CPU0:router(admin)#show install inactive summary

- Remove the unnecessary inactive packages:
RP/0/RSP0/CPU0:router(admin)# install remove
disk0:disk0: .. disk0: sync
or
RP/0/RSP0/CPU0:router(admin)#install remove inactive sync

Posted in Real World | Tagged: , , | Leave a Comment »

End-of-Sale and End-of-Life Announcements-Cisco 7600 Series Routers / EOL/EOS for Select Cisco IOS 12.2(33)SRx Software Releases

Posted by Peter Kurdziel on August 1, 2011

Cisco Notification Service Alert:
________________________________________________________________________________

Cisco Notification Alert -7600-07/30/2011 10:21 GMT

End-of-Sale and End-of-Life Announcements-Cisco 7600 Series Routers-07/29/2011 03:31 GMT-07/30/2011 07:31 GMT

Title: EOL/EOS for Select Cisco IOS 12.2(33)SRx Software Releases
Url: http://www.cisco.com/en/US/prod/collateral/routers/ps368/end_of_life_c51-680823.html
Description: Cisco announces the end-of-sale and end-of life dates for the Cisco IOS Software Release 12.2(33)SRA, 12.2(33)SRB, 12.2(33)SRC, and 12.2(33)SRD. The last day to order the affected product(s) is January 11, 2012. Customers with active service contracts for affected Hardware products will continue to receive support from the Cisco Technical Assistance Center (TAC) for affected hardware as shown in Table 1 of the EoL bulletin. Table 1 describes the end-of-life milestones, definitions, and dates for the affected product(s). Table 2 lists the product part numbers affected by this announcement. For customers with active and paid service and support contracts, support will be available until the termination date of the contract, even if this date exceeds the Last Date of Support shown in Table 1. This announcement is limited to the IOS throttle 12.2(33)SRA, 12.2(33)SRA1, 12.2(33)SRA2, 12.2(33)SRA3, 12.2(33)SRA4, 12.2(33)SRA5, 12.2(33)SRA6, 12.2(33)SRB, 12.2(33)SRB1, 12.2(33)SRB2, 12.2(33)SRB3, 12.2(33)SRB4, 12.2(33)SRB5, 12.2(33)SRB5a, 12.2(33)SRB6, 12.2(33)SRC 12.2(33)SRC1 12.2(33)SRC2 12.2(33)SRC3 12.2(33)SRC4 12.2(33)SRC5, 12.2(33)SRD, 12.2(33)SRD1, 12.2(33)SRD2, 12.2(33)SRD2a, 12.2(33)SRD3, and subsequent IOS throttles continue to be available and support till further notice.
Date: 2011-07-29 13:33:44.0

For more information you can visit the End-of-Sale and End-of-Life Products index: http://www.cisco.com/en/US/products/hw/tsd_products_support_end-of-sale_and_end-of-life_products_list.html
________________________________________________________________________________

To unsubscribe this notification click the following url :
http://www.cisco.com/cisco/support/notifications/addedit.html?notiId=175519

Help us improve this facility. To give feedback you can visit the Cisco Notification Service: http://www.cisco.com/cisco/support/notifications.html#feedback

Posted in Real World, Uncategorized | Leave a Comment »

Cisco Certified Internetwork Expert

Posted by Peter Kurdziel on June 29, 2010

Expert Level Knowledge and Experience

Cisco CCIE

Cisco Certified Internetwork Expert (CCIE®) is the highest level of technical networking certification offered by Cisco. Put your knowledge and experience to the test. Achieve Cisco CCIE certification and accelerate your career.

The Cisco Certified Internetwork Expert (CCIE) certification is accepted worldwide as the most prestigious networking certification in the industry. Network Engineers holding an active Cisco CCIE certification are recognized for their expert network engineering skills and mastery of Cisco products and solutions. The CCIE community has established a reputation of leading the networking industry in deep technical networking knowledge and are deployed into the most technically challenging network assignments.

The program continually updates and revises its testing tools and methodologies to ensure unparalleled program quality, relevance and value. Through a rigorous written exam and a performance based lab, the CCIE program sets the standard for internetworking expertise.

Cisco introduced the CCIE certification in 1993 to assist the industry in distinguishing the top echelon of internetworking experts worldwide. Today , CCIE certification holders represent less than 3% of all certified Cisco professionals and less than 1% of the networking professionals worldwide.

Posted in Real World, Routing & Switching Lab | Leave a Comment »

Polish Telco Operator Quadruples Bandwidth of Existing Core

Posted by Peter Kurdziel on February 19, 2010

Netia chooses Cisco® CRS-1 Carrier Routing Systems for IPoDWDM (40G), resiliency, and optimized total cost of ownership.
http://www.cisco.com/en/US/prod/collateral/routers/ps5763/case_study_c36-518850.pdf

Posted in Real World | Leave a Comment »

A Poem on a “CCIE-to-be” from my Wife :-) Interesting

Posted by Peter Kurdziel on February 12, 2010

Posted by Muhammad Anser Khan on groupstudy’s mailing list.

THE WOES OF A WIFE….

Loneliness, boring hours and silence is for me,
meet me i’m the wife of a CCIE-to-be,

Nothing to do but to read the stories of wizards and witches,
while my husband stare at his routers and switches,

My days have become long and drab,
only because he has to give his lab,

To him i wouldn’t look so dull and drony,
If only he’d leave alone his IP Telephony,

For me,no outing no romance no disco,
ah! how i hate this word “CISCO”,

We could better discuss and plan OUR future,
but no! he’s more interested in MPLS architecture,

I love him with all my heart and body and soul,
but he has eyes only for the routing protocol,

I have to beg him to take me to a mall,
between him and me is always a “firewall”,

My good old “cisco-free” days are lost in a mist,
I sure wish i could use his “access list”,

My woes are as vast and as deep as a sea,
meet me im the wife of a CCIE-to-be……

Regards,
Anser

Posted in Real World | 2 Comments »

CCIE® SP Operations Certification

Posted by Peter Kurdziel on January 25, 2010

The Cisco CCIE SP Operations certification
assesses and validates core IP NGN service provider operations
expertise.  Candidates who pass the CCIE SP Operations certification
exams demonstrate skills required of a expert-level (Tier III or Tier IV
support) operations engineer to troubleshoot and maintain complex
service provider IP NGN core (PE-PE and PE-CE) network infrastructures
in both IOS and IOS XR operating environments, plus validate broad
theoretical knowledge of operations management processes, frameworks,
and network management systems.

CCIE SP Operations Certification benefits:

  • Certification
    helps qualify personnel for customer’s Operations (NOC) Centers
  • Provides
    a credential (certification) that a person holds significant knowledge
    in SP Operations
  • Provides expert level certification to network
    operations (i.e. NOC) personnel to validate they are qualified to
    maintain and support Cisco service provider core IP (NGN) Next
    Generation Networks


CCIE SP Operations Written Exam Topics

 

The Cisco SP Operations Written
Exam (#350-060) has 100 multiple-choice questions and is two hours in
duration. The topic areas listed are general guidelines for the type of
content that is likely to appear on the exam. Please note, however, that
other relevant or related topic areas may also appear.

 

Exam Sections and Sub-task Objectives

√

1.0

Manage the network fault management
system

1.1

Develop a fault management
process for a managed network environment collaboratively with the tools
team

1.2

Determine the interaction
between the fault management system and the ticketing system in
collaboration with the tools team

1.3

Determine the method to gather appropriate metrics
for an established fault management process

2.0

Manage
performance and capacity

2.1

Identify spikes and potential trouble spots based
on syslog and/or Network Management System (NMS) output

2.2

Develop a plan to solve a particular performance
issue based on syslog and/or Network Management System (NMS) output

2.3

Identify the Network Management System (NMS)
metrics and SLA metrics that will be needed in order to further
troubleshoot a specific problem communicated orally, written, etc.

2.4

Develop a plan to establish a baseline and monitor
the network in conjunction with the tools and performance groups

2.5

Create baseline network performance in conjunction
with engineering and architecture teams

2.6

Monitor the network to look for variances against
the baseline

2.7

Edit existing scripts which
enable a network baseline management plan in conjunction with the tools
and performance groups

3.0

Manage
operations processes

3.1

Collaborate with the process
team and NOC management on process development to meet a desired
network operational objective

3.2

Develop a specific prototype
and test plan for a particular planned network change, working
collaboratively with the engineering and design groups

3.3

Develop, for a particular network, a list of needed
tools working collaboratively with the tools team

3.4

Develop a detailed operations plan  including
metrics and reporting functions for a particular network working
collaboratively with the process team

3.5

Develop a process change action plan based on the
results of a network audit

3.6

Develop and maintain a
spares plan for a particular network

4.0

Troubleshoot and
fix reachability and transport problems within the network

4.1

Identify predecessor steps that have not been
executed based on an escalation ticket dealing with reachability

4.2

Determine whether to fix or escalate a ticket
dealing with reachability

4.3

Identify the area(s) causing
a complex reachability problem of unknown origin

4.4

Troubleshoot a complex routing problem and,
considering the technical aspects, determine the risks and fix it

4.5

Troubleshoot a complex security problem and,
considering the technical aspects, determine the risks and fix it

5.0

Identify
problems in implementation plans

5.1

Find issues of a rollout plan received from
engineering before deployment

5.2

Identify hardware which is
not backwards compatible on a new service rollout plan

5.3

Find hardware that needs operating system upgrades
on a new service rollout plan

5.4

Review and provide
recommendations on areas in which NOC support plans will not be
sufficient on a new service rollout plan

6.0

Troubleshoot and
fix network performance problems

6.1

Identify predecessor steps that have not been
executed based on an escalation ticket dealing with network performance

6.2

Determine whether to fix or escalate a ticket
dealing with network performance

6.3

Determine whether to fix or where to escalate a
core network fault

6.4

Identify the source of a
complex network performance problem

6.5

Troubleshoot a complex network performance problem
and, considering the technical aspects, determine the risks and  fix it

6.6

Identify a complex
application performance problem and isolate it

6.7

Identify a complex computing device (server, call
manager, etc – not the network or application) performance problem and
isolate it

6.8

Troubleshoot a complex
traffic pattern problem and, considering the technical aspects,
determine the risks and fix it

6.9

Troubleshoot a complex,
chronic performance problem and, considering the technical aspects,
determine the risks and fix it

Posted in Real World | Leave a Comment »

Autonegotiation Valid Configuration

Posted by Peter Kurdziel on January 17, 2010

There is a lot of confusion about auto negotiation. Here is a chart that will help bring things into perspective.

Autonegotiation Valid Configuration



Configuration NIC (Speed/Duplex)

Configuration Switch (Speed/Duplex)

Resulting NIC Speed/Duplex

Resulting Catalyst Speed/Duplex

Comments

AUTO

AUTO

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

Assuming maximum capability of Catalyst switch, and NIC is 1000
Mbps, full-duplex.

1000 Mbps, Full-duplex

AUTO

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

Link is established, but the switch does not see any
autonegotiation information from NIC. Since Catalyst switches support only
full-duplex operation with 1000 Mbps, they default to full-duplex, and this
happens only when operating at 1000 Mbps.

AUTO

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

Assuming maximum capability of NIC is 1000 Mbps,
full-duplex.

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

1000 Mbps, Full-duplex

Correct Manual Configuration

100 Mbps, Full-duplex

1000 Mbps, Full-duplex

No Link

No Link

Neither side establishes link, due to speed
mismatch

100 Mbps, Full-duplex

AUTO

100 Mbps, Full-duplex

100 Mbps, Half-duplex

Duplex Mismatch
1

AUTO

100 Mbps, Full-duplex

100 Mbps, Half-duplex

100 Mbps, Full-duplex

Duplex Mismatch
1

100 Mbps, Full-duplex

100 Mbps, Full-duplex

100 Mbps, Full-duplex

100 Mbps, Full-duplex

Correct Manual
Configuration2

100 Mbps, Half-duplex

AUTO

100 Mbps, Half-duplex

100 Mbps, Half-duplex

Link is established, but switch does not see any
autonegotiation information from NIC and defaults to half-duplex when operating
at 10/100 Mbps.

10 Mbps, Half-duplex

AUTO

10 Mbps, Half-duplex

10 Mbps, Half-duplex

Link is established, but switch does not see Fast Link Pulse
(FLP) and defaults to 10 Mbps half-duplex.

10 Mbps, Half-duplex

100 Mbps, Half-duplex

No Link

No Link

Neither side establishes link, due to speed
mismatch.

AUTO

100 Mbps, Half-duplex

100 Mbps, Half-duplex

100 Mbps, Half-duplex

Link is established, but NIC does not see any autonegotiation
information and defaults to 100 Mbps, half-duplex.

AUTO

10 Mbps, Half-duplex

10 Mbps, Half-duplex

10 Mbps, Half-duplex

Link is established, but NIC does not see FLP and defaults to
10 Mbps, half-duplex.

Posted in Best practices, CATALYST, Real World, Troubleshooting | 1 Comment »

Vegas baby!!!!!

Posted by Peter Kurdziel on January 12, 2010

Cisco Live 2010 – Pre-Registration Now Open

Cisco Live is Cisco’s annual IT and communications conference. The
conference features Networkers, our premier education and training
program, and other special programs designed to meet the diverse needs
of today’s IT and communications professional from increasing technical
proficiency to understanding the impact of technology on business.

Las Vegas, Nevada
June 27 – July 1, 2010

Posted in Other, Real World | Leave a Comment »

Narbik is adding CCIE Security and Service Provider bootcamps this year!

Posted by Peter Kurdziel on January 12, 2010

Here is a list of bootcamps and dates.
http://www.micronicstraining.com/classes/index.php?dispatch=categories.view&category_id=190

Posted in Other, Real World, Routing & Switching Lab | Leave a Comment »

Troubleshooting the Catalyst 6500

Posted by Peter Kurdziel on January 12, 2010

Troubleshooting Hardware and Common Issues on Catalyst 6500/6000 Series Switches Running Cisco IOS System Software


Troubleshoot Error Messages in the Syslog or Console



The show diagnostic sanity Command



Supervisor Engine or Module Problems


     
Supervisor Engine LED in Red/Amber or Status Indicates faulty

     
Switch Is in Continuous Booting Loop, in ROMmon mode, or Missing the System Image

     
Standby Supervisor Engine Module Is Not On Line or Status Indicates unknown

     
Show Module Output Gives “not applicable” for SPA Module

     
Standby Supervisor Engine Reloads Unexpectedly

     
Even After You Remove the Modules, the show run Command Still Shows Information About the Removed Module Interfaces

     
Switch Has Reset/Rebooted on Its Own

     
DFC-Equipped Module Has Reset on Its Own

     
Troubleshoot a Module That Does Not Come On Line or Indicates faulty or other Status

     
Inband Communication Failure

     
Error “System returned to ROM by power-on (SP by abort)”

     
Error: NVRAM: nv->magic != NVMAGIC, invalid nvram

     
Error: Switching Bus FIFO counter stuck

     
SYSTEM INIT: INSUFFICIENT MEMORY TO BOOT THE IMAGE!


Troubleshoot CatOS to Cisco IOS Software or Cisco IOS Software to CatOS Conversion


     
Problem when User Attempts to Access the NVRAM After Cisco IOS to CatOS Conversion

     
Unable to Boot with Cisco IOS Software when User Converts from CatOS to Cisco IOS


Interface/Module Connectivity Problems


     
Connectivity Problem or Packet Loss with WS-X6548-GE-TX and WS-X6148-GE-TX Modules used in a Server Farm

     
Workstation Is Unable to Log In to Network During Startup/Unable to Obtain DHCP Address

     
Troubleshoot NIC Compatibility Issues

     
Interface Is in errdisable Status

     
Troubleshoot Interface Errors

     
You Receive %PM_SCP-SP-3-GBIC_BAD: GBIC integrity check on port x failed: bad key Error Messages

     
You Get COIL Error Messages on WS-X6x48 Module Interfaces

     
Troubleshoot WS-X6x48 Module Connectivity Problems

     
Troubleshoot STP Issues

     
Unable to Use Telnet Command to Connect to Switch

     
Giant Packet Counters on VSL Interfaces


Power Supply and Fan Problems


     
Power Supply INPUT OK LED Does Not Light Up

     
Troubleshoot
C6KPWR-4-POWRDENIED: insufficient power, module in slot [dec] power
denied or %C6KPWR-SP-4-POWRDENIED: insufficient power, module in slot
[dec] power denied Error Messages

     
FAN LED Is Red or Shows failed in the show environment status Command Output

     
“Diagnostic level complete” causes a crash on 6500


Cisco Support Community – Featured Conversations



Related Information

Catalyst 6500/6000 Switches ARP or CAM Table Issues Troubleshooting


Troubleshoot ARP or CAM Related Issues


     
Loss of Dynamic MAC Addresses with Distributed Switching

     
CEF Drops Packets at Regular Intervals

     
Switch Filter All-Zero MAC Addresses from the CAM Table

     
Unicast Flooding in the Network Every 5 Minutes

     
ARP Issues in Hybrid CatOS

     
Error EARL-2-EARL4LOOKUPRAMERROR During the CAM Table Lookup

     
Static CAM Entries Lost After Supervisor Switchover

     
%ACL-5-TCAMFULL: acl engine TCAM table is full

     
Ping Issues Occur when the MSFC Does Not Respond to the ARP Request in Catalyst 6500 Series Switches

     
Multiple Entries in MAC Address Table

     
Virtual IP Address Used by Microsoft Load Balancing is Not Reachable


Troubleshooting Input Queue Drops and Output Queue Drops


Processing and Switching



Input Queue Drops


     
Troubleshoot Input Queue Drops


Output Queue Drops


     
Troubleshoot Output Queue Drops


Commands to Obtain More Information


     
show interfaces switching

     
show interfaces stats

     
ip accounting mac-address

     
show interfaces mac-accounting

More info here: http://www.cisco.com/en/US/products/hw/switches/ps708/prod_tech_notes_list.html

Posted in CATALYST, Real World, Troubleshooting | Leave a Comment »

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