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
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6726 569 6 1 0
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Subject Views Votes Rating Replies Last replied by
discussion need simple config for 3560 to act as plain old switch
Last Reply 59 min 58 sec ago.
14 0 0 3 jcoreybmw
discussion How to configure ADSL PPPoE conexion withount interface ATM on the cisco 1941 router
Last Reply 2 hours 37 sec ago.
12 0 0 2 aefmaaradji84
discussion strange port utilization
Last Reply 2 hours 4 min ago.
31 0 0 5 mark malone
discussion Cisco 2951 with EHWIC
Last Reply 3 hours 17 min ago.
42 0 0 7 Philip D'Ath
discussion Reset Cisco ME3600
Last Reply 4 hours 44 min ago.
14 0 5 3 Philip D'Ath
discussion Lost all connection to SG300-10 switch after cable move around
Last Reply 6 hours 30 min ago.
0 0 0 0 sauersadmin
discussion Lost all connection to SG300-10 switch after cable move around
Last Reply 6 hours 38 min ago.
0 0 0 0 sauersadmin
discussion ASR 9K + VXLAN
Last Reply 7 hours 1 min ago.
11 0 0 2 magedis0383
discussion WS-X6816-10GE over-subscription ? line rate ? please help !
Last Reply 7 hours 20 min ago.
6 0 0 2 Madhukrishnan G...
discussion Invalid ARP
Last Reply 9 hours 44 min ago.
24 0 0 5 Masoud Pourshabanian
discussion How to monitor N7K frabic throughput
Last Reply 11 hours 33 min ago.
28 0 0 5 Madhukrishnan G...
discussion VSS local-cef (FIB) entries
Last Reply 12 hours 19 min ago.
12 0 0 0 ju_mobile
discussion Which has more throughput Cisco UC540 or Cisco 891?
Last Reply 14 hours 41 min ago.
10 0 0 1 Karsten Iwen
discussion Switch 3750x fail to boot after upgrade
Last Reply 14 hours 45 min ago.
9 0 0 3 Leo Laohoo
discussion Which standard do you follow to draw a network topology?
Last Reply 15 hours 9 min ago.
12 0 0 1 Karsten Iwen
discussion What's the best Cisco Firewall for 12 PCs, 2 servers and hosted VOIP
Last Reply 15 hours 23 min ago.
5 0 0 1 Karsten Iwen
discussion SUP720 back to RP rommon mode after booting completely
Last Reply 21 hours 32 min ago.
57 0 5 7 Hele Du
discussion Nexus 7000 with fex and server with 2 nics
Last Reply 22 hours 52 min ago.
38 0 5 3 Masoud Pourshabanian
discussion Annoying layer 2 broadcasting!
Last Reply 1 day 9 hours ago.
31 0 0 1 mark malone
discussion Error Loading Flash...
Last Reply 1 day 10 hours ago.
26 0 5 3 canerkoksal
discussion 3850-48XS - Dot1x - Port not switching to Isolated LAN during reboot
Last Reply 1 day 10 hours ago.
19 0 5 2 michaelpadkins@...
discussion Mixed/Overlapping VLSM for OSPF
Last Reply 1 day 13 hours ago.
25 0 0 1 Rolf Fischer
discussion UDP ports blocked on Catalyst 2950
Last Reply 1 day 14 hours ago.
10 0 0 1 Peter Paluch
discussion ASR1002: Firmware and IOS compatibility
Last Reply 1 day 15 hours ago.
6 0 0 1 Iulian Vaideanu
discussion Command Conversion From Cisco 7200 Series to ASR 1000 Series
Last Reply 1 day 15 hours ago.
4 0 0 0 bayhaki.a
Filter Results
Subject Views Ratingsort descending 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
GARP
Last Reply 6 years 6 months ago.
7426
0.0
0 ITA Terms
GMRP
Last Reply 5 years 5 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
MAC Addresses used by the Cisco 3750
Last Reply 6 years 8 months ago.
1661
0.0
0 Oliver Gorwits
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
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 14 hours 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
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/disable SPAN reflector feature in Catalyst 6500 series switches with the FWSM module
Last Reply 3 years 2 weeks ago.
4369
0.0
0 TCC_2
Ping issues between service modules and the rest of the network with cross-module etherchannel in Catalyst 6500 Series Switches with Supervisor 720 that runs native Cisco IOS
Last Reply 6 years 6 months ago.
463
0.0
0 TCC_2
A self-signed certificate is added to a Cisco Catalyst switch that is managed through HTTPS
Last Reply 6 years 6 months ago.
2142
0.0
0 TCC_2
Filter Results
Subject Views Ratingsort descending Comments Author
blog MPLS Conference 2010 and Cisco Leadership
Last Reply 5 years 3 months ago.
3129
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0 mmorrow
blog Cloud Computing: Update ITU-T Focus Group and OMG-Hosted Telecom Cloud Conference
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1558
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2 mmorrow
blog From Internet of Things to Web of Things
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2551
0.0
0 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 Machine-to-Machine Communications as a Subset of Internet of Things
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2106
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0 mmorrow
blog Troubleshooting L2 issues - ARP Poisoning
Last Reply 4 years 4 weeks ago.
8251
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 Chalk Talk: The Secret to Successful QoS Deployments: A Well-Defined End-to-End QoS Strate
Last Reply 1 year 10 months ago.
340
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0 Julie Burruss
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 9 months ago.
138
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0 vishal_2007
blog Upcoming Ask the Expert Event with Cisco Designated VIP Marwan Al-shawi May 12-23
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139
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0 Francine Richards
blog License Activation on 4500
Last Reply 1 year 4 months ago.
798
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1 sheraz butt
blog Three Tips for a Successful Review Period
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45
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blog Network Compliance Analysis
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blog Expert Insights: Network Optimization
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blog Prepare for the Collector
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blog Who Should Attend The Kickoff Meeting?
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blog Collector Security
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blog Converting IOS to CatOS in Production Switch
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blog Parity Error.
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blog About "TestErrorCounterMonitor" in 6500/7600
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blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
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blog Multicast for the heart Part I: IGMP
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blog Nexus 7000 ACL logging (OAL)
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blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 1 year 4 months ago.
7710
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