LAN, Switching and Routing

The Cisco LAN, Routing and Switching Technical Support Forum gives you access to participate in tech discussions and go through documents on Cisco LAN Switch, LAN Router, VLAN, Cisco Catalyst, Catalyst 6500, Catalyst 3550, Jabber Client, Nexus 7000, and other related issues. You can browse through latest tech topics popular among the community.

 

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Get a "%Error opening scp://*@server_address//ios_file_name (Undefined error)", when trying to scp from SFTP_Root on Solarwinds server to ASR1004.I...
17 hours 30 min ago
I'm using storm control as a work-around for a bug in Apple Thunderbolt displays that periodically floods the network with bogus traffic.  The swit...
1 day 17 hours ago
For the 9508 chassis:- IF i add two modules N9K-X9564TX with 4 fabric ,There is any blocking in the line card or not ? i need to know also how to...
1 day 23 hours ago
Hi, I tried to go through the Cisco document but I got confused whether ASR 1002 will support ISSU or not. Please provide exact steps to upgrade wi...
2 days 14 hours ago
Greetings friends, Does anyone have some basic troubleshooting skills for troubleshooting a video stream from one switch to another.  I have about...
2 days 15 hours ago
         
Switches 6726 569 6 1 0
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
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discussion ASK THE EXPERT- CATALYST 6500 SERIES SWITCHES
Last Reply 10 months 2 weeks ago.
1329 1 5 68 nehs
discussion Networking PCs??
Last Reply 9 years 5 months ago.
557 0 4 3 JohnHumphrey
discussion 3750 Switches
Last Reply 9 years 1 week ago.
400 0 3.5 4 flopez@mpaa-inc.com
discussion low cost Internet loadbalancing solutions?
Last Reply 9 years 4 months ago.
560 0 5 1 jipurser
discussion Will Cisco 857 solve my problem?
Last Reply 9 years 4 months ago.
420 0 5 3 rob.huffman
discussion SUP2 to SUP720 Upgrade
Last Reply 9 years 4 months ago.
433 0 5 4 kirkster
discussion Tag native VLAN globally
Last Reply 9 years 4 months ago.
857 0 5 22 richmorrow624
discussion Cisco Switching and Apple Computers
Last Reply 1 year 8 months ago.
596 0 0 2 devils_advocate
discussion Would I use NBAR to search on DSCP values, or something else?
Last Reply 5 months 2 days ago.
487 0 0 2 paul driver
discussion VLAN tagging and prioritization
Last Reply 9 years 4 months ago.
627 0 0 7 Collin Clark
discussion Cisco 1600 failure
Last Reply 9 years 3 months ago.
173 0 5 16 jackyoung
discussion Cat 6500 - mixing CEF and DFC cards in same chassis
Last Reply 9 years 4 months ago.
441 0 5 3 simonpope
discussion Port Security behaviour with CatOS and IOS
Last Reply 9 years 4 months ago.
185 0 0 1 mchin345
discussion Dot1x with Nortel VoIP
Last Reply 9 years 4 months ago.
208 0 0 1 wong34539@yahoo.com
discussion rapid-pvst+,rapid-pvst and pvst .. which will converge first ?
Last Reply 9 years 4 months ago.
608 0 0 1 aghaznavi
discussion catalyst 65xx and dfc3b cards
Last Reply 9 years 4 months ago.
249 0 0 3 kirkster
discussion Coms Delay in One direction
Last Reply 9 years 4 months ago.
168 0 0 1 gmarogi
discussion point-to-multipoint metro dilema
Last Reply 1 year 3 months ago.
152 0 0 2 LA-Engineer
discussion Intelligent Load Balancing w/Agents
Last Reply 9 years 4 months ago.
183 0 0 1 wong34539@yahoo.com
discussion Cat 6500: strange message on startup.
Last Reply 9 years 4 months ago.
252 0 0 1 gmarogi
discussion vrf lite
Last Reply 9 years 4 months ago.
421 0 0 2 mheusinger
discussion Large distribute-list
Last Reply 9 years 4 months ago.
137 0 0 1 carenas123
discussion Overrun errors on Etherchannel Interfaces
Last Reply 9 years 4 months ago.
625 0 0 5 lwn-nenzing
discussion Confused about forwarding rate spec of cisco/nortel/3com
Last Reply 9 years 4 months ago.
178 0 0 1 amritpatek
discussion ip mobile
Last Reply 9 years 4 months ago.
176 0 0 2 fcostalunga
Filter Results
Subject Views Rating Comments Author
CEF
Last Reply 6 years 8 months ago.
1162
0.0
0 ITA Terms
Catalyst 4948
Last Reply 6 years 6 months ago.
1649
0.0
0 Ashley Price
Cisco_Catalyst_6506-E_Switch
Last Reply 6 years 6 months ago.
1888
0.0
0 Ashley Price
Cisco_Catalyst_6509-E_Switch
Last Reply 6 years 6 months ago.
2554
0.0
0 Ashley Price
SFP
Last Reply 6 years 8 months ago.
4103
0.0
0 ITA Terms
Add port To Vlan
Last Reply 6 years 8 months ago.
82038
5.0
0 ITA Terms
GARP
Last Reply 6 years 6 months ago.
7426
0.0
0 ITA Terms
GMRP
Last Reply 5 years 6 days ago.
4653
0.0
0 ITA Terms
How to Configure Private Hosts in a Cisco Catalyst 6500 switch
Last Reply 6 years 6 months ago.
2162
0.0
0 SunilKhanna
Module status shows unsupported module when installed in slot 10 of the Catalyst 4510R Switch chassis with Supervisor V
Last Reply 6 years 8 months ago.
1105
0.0
0 SunilKhanna
MAC Addresses used by the Cisco 3750
Last Reply 6 years 8 months ago.
1661
0.0
0 Oliver Gorwits
The power management and environmental monitoring features on the Cisco Catalyst 4000/4500 switches
Last Reply 6 years 6 months ago.
261
0.0
0 TCC_2
The %SUPQ-4-CPUHB_RECV_STARVE: Still seeing receive queue stuck after throttling error message is displayed in the logs of Cisco Catalyst 2970, Catalyst 3560, or Catalyst 3750 Metro series switches running Cisco IOS System Software
Last Reply 11 months 1 day ago.
8383
0.0
1 TCC_2
The %SIBYTE-CFC3-6-SB_RMON_OVRFL: RMON register 20 overflow on mac 1 error message receieved in Catalyst 6500 series switches that runs Cisco IOS system software
Last Reply 6 years 6 months ago.
1786
0.0
0 TCC_2
An active Supervisor Engine 720 crashes after a redundant supervisor is inserted in Catalyst 6500 and Catalyst 7600 series switches
Last Reply 6 years 6 months ago.
875
0.0
0 TCC_2
How to get the heat tolerance and environment monitoring on a Catalyst 6500/6000 series switches
Last Reply 4 years 6 months ago.
523
0.0
1 TCC_2
The "%C6KENV-SP-4-FANPSINCOMPAT: Fan tray and power supply 1 are incompatible error message appears in Catalyst 6500 series switches that runs the Cisco IOS system
Last Reply 6 years 6 months ago.
2014
0.0
0 TCC_2
Ports go into err-disable with the %PHY-4-SFP_NOT_SUPPORTED: error message when connecting Catalyst 3560 and Catalyst 3750 Switches using an SFP Interconnect Cable
Last Reply 6 years 6 months ago.
2851
0.0
0 TCC_2
How to remove or erase unused port channel configs in the Catalyst 6500 that runs the CatOS system software
Last Reply 6 years 6 months ago.
1507
0.0
0 TCC_2
Static routes are not displayed in show ip route command in Catalyst 6500 series switches
Last Reply 6 years 6 months ago.
4821
5.0
0 TCC_2
How to configure SPAN and RSPAN on Cisco Catalyst 4500 switches that run Cisco IOS Software
Last Reply 6 years 6 months ago.
11601
0.0
0 TCC_2
User receives periodic %SPANTREE-3-PORTDEL_FAILNOTFOUND syslog messages
Last Reply 6 years 6 months ago.
660
0.0
0 TCC_2
The %SYS-4-P2_WARN: 1/Blocked queue (tx) on port error message is displayed on a Cisco Catalyst 4000 series switch running CatOS
Last Reply 6 years 6 months ago.
478
0.0
0 TCC_2
The "%C4K_SWITCHMANAGER-4-S2WERRORREPORT" error message appears in the logs of a Cisco Catalyst 4500 Switch, and affects the functionality of PoE line cards
Last Reply 9 months 1 week ago.
8824
0.0
1 TCC_2
How to enable VLAN communication between switches in different VTP domains
Last Reply 6 years 6 months ago.
2048
5.0
0 TCC_2
Filter Results
sort descending Subject Views Rating Comments Author
blog MPLS Conference 2010 and Cisco Leadership
Last Reply 5 years 3 months ago.
3129
0.0
0 mmorrow
blog Nexus 7000 ACL logging (OAL)
Last Reply 4 months 1 week ago.
18715
5.0
8 Robert Taylor
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 1 year 4 months ago.
7710
5.0
7 Robert Taylor
blog Cloud Computing: Update ITU-T Focus Group and OMG-Hosted Telecom Cloud Conference
Last Reply 4 years 11 months ago.
1558
0.0
2 mmorrow
blog FabricPath: Cisco’s New Technology of Extending Layer 2 Network Without Spanning Tree
Last Reply 5 years 2 weeks ago.
3263
0.0
0 TS-newsletter
blog From Internet of Things to Web of Things
Last Reply 5 years 2 weeks ago.
2551
0.0
0 mmorrow
blog The best CCO document link for Peer-Gateway on vPC/Nexus7000
Last Reply 4 years 10 months ago.
4560
5.0
0 kyukim
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 7 months 2 weeks ago.
28648
5.0
1 Shashank Singh
blog Converting IOS to CatOS in Production Switch
Last Reply 4 years 7 months ago.
2446
3.0
6 Tripat Singh
blog Router Crashes
Last Reply 3 years 4 months ago.
6035
5.0
1 ajaju
blog Booting Cisco Router from a TFTP server
Last Reply 1 year 7 months ago.
22467
5.0
3 ajaju
blog Troubleshoot L2 Connectivity Issue : VTP PRUNING
Last Reply 4 years 3 months ago.
7639
5.0
3 rparames
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 2 months 1 week ago.
25242
4.7
13 Akula Jyoti Lakshmi
blog Machine-to-Machine Communications as a Subset of Internet of Things
Last Reply 4 years 6 months ago.
2106
0.0
0 mmorrow
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 3 years 7 months ago.
12816
5.0
7 pnagpal
blog New Cisco 5915 ESR
Last Reply 3 years 9 months ago.
4267
5.0
2 Sonal Singh
blog Troubleshooting L2 issues - ARP Poisoning
Last Reply 4 years 1 month ago.
8252
0.0
4 rparames
blog Upcoming Webcast: Troubleshooting Tools to Analyze High CPU Utilization Issues on Cisco Catalyst 6500 Series Switches
Last Reply 4 years 1 month ago.
1660
0.0
0 ciscomoderator
blog Loading an IOS on a switch via Xmodem
Last Reply 1 month 2 days ago.
66733
5.0
11 Aninda Chatterjee
blog Moving Beyond the Internet of Things in 2012
Last Reply 4 years 2 weeks ago.
1713
5.0
0 mmorrow
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 10 months ago.
1571
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 10 months ago.
778
5.0
2 srereddy
blog Important Nexus 7000 NX-OS Software Update
Last Reply 3 years 8 months ago.
4099
5.0
0 ctripoli
blog Configuring a frame-relay switch
Last Reply 1 year 9 months ago.
7901
5.0
7 Aninda Chatterjee
blog Multicast for the heart Part I: IGMP
Last Reply 3 years 2 months ago.
4874
4.8
1 Aninda Chatterjee
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