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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Hi All,  I am facing one issue that , I can't backup my configuration backup from (C3560-IPBASE-M) to FTP server. Below is the error and configura...
57 min ago
Hi All,  I am facing one issue that , I can't backup my configuration backup from (C3560-IPBASE-M) to FTP server. Below is the error and configura...
57 min 8 sec ago
I have been given some Cisco ACE 4710's to look after recently as part of an old contract for a customer.  I have had to replace one of the units r...
4 hours 57 min ago
Hello,I am exploring options to assign access ports membership based on outer and inner tag. I am trying to achieve an architecture where the [oute...
6 hours 27 min ago
Hi all, I'm having a strange issue when it comes to the auto smartport feature. Whenever I connect an AP I want to reconfigure the port via the lo...
by Chris
7 hours 50 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6724 569 6 1 0
Filter Results
Subject Views Votes Rating Replies Last replied by
discussion LAN strange ping response
Last Reply 1 min 22 sec ago.
33 0 0 7 premkumarjm
discussion Routing vs Switching and VLANs vs Flat
Last Reply 6 min 9 sec ago.
0 0 0 1 devils_advocate
discussion Multiple MAC address on a single Access Port?
Last Reply 9 min 32 sec ago.
37 0 0 6 devils_advocate
discussion Getting RSSI from telnet interface
Last Reply 12 min 47 sec ago.
6 0 0 3 dvaldes011
discussion Cisco RV320 router changes to wrong DNS
Last Reply 14 min 38 sec ago.
3 0 0 2 dninov001
discussion 3560 ACL logging/hit count behavior...
Last Reply 15 min 47 sec ago.
5 0 0 1 mark malone
discussion 3650 proxy arp
Last Reply 16 min ago.
23 0 0 5 pwwiddicombe
discussion How to protect 6500 from this ? CoPP, hardware rate limiters, or others
Last Reply 18 min 17 sec ago.
0 0 0 0 gnijs
discussion a vlan two HSRP groups different subnets
Last Reply 31 min 46 sec ago.
58 0 5 12 mark malone
discussion Subnet mask
Last Reply 1 hour 40 min ago.
20 0 0 3 jamiebutterworth2016
discussion ICMP Echo Reply through trunk in 2 vlans
Last Reply 2 hours 6 min ago.
6 0 5 3 jamiebutterworth2016
discussion HSRP, VRRP, GLBP on WS-C3850-24T-S
Last Reply 2 hours 10 min ago.
0 0 0 2 ibrahimalo
discussion nexus 5548-UP + FEX support + configuration example
Last Reply 2 hours 58 min ago.
4 0 0 2 satishmothukri
discussion 802.1x eap retransmition WS-C2960-48TC-L
Last Reply 3 hours 4 min ago.
0 0 0 0 Bartosz Sobczyk
discussion TCP Port 33621 denied by ACL
Last Reply 4 hours 24 min ago.
5 0 0 1 Ben Gartland
discussion Cisco 7606 RSP720-3C error Low Voltage detected for NVRAM Battery every hour
Last Reply 4 hours 48 min ago.
4 0 0 1 Iulian Vaideanu
discussion How many route entries does 3945E or/and 3900 ISR G2 support
Last Reply 5 hours 1 min ago.
3827 0 5 9 jskvorc863
discussion CSCus69731 - Clarity on Affected Releases
Last Reply 5 hours 7 min ago.
9 0 0 1 mark malone
discussion Need Clarification on "Last Configuration Change" and "NVRAM Config Last Updated"
Last Reply 5 hours 28 min ago.
5 0 0 1 mark malone
discussion WS-C2950-24 IOS for ipbasek9
Last Reply 5 hours 49 min ago.
3 0 0 1 Iulian Vaideanu
discussion C3750X won`t accept 100Mbit SFPs on first 12 ports
Last Reply 7 hours 1 min ago.
16 0 0 2 Zeljko.Medic
discussion Cisco 3850 High Output Errors and drops after upgrade to 3.0.7.0.3E
Last Reply 7 hours 18 min ago.
10 0 0 4 bern.rain
discussion BUG ID:CSCts29063 %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve
Last Reply 10 hours 32 min ago.
28498 11 5 16 andrew.jenkins115
discussion Nexus HSRP and default routes
Last Reply 10 hours 57 min ago.
3 0 0 1 Reza Sharifi
discussion monitor traffice for spam virus
Last Reply 11 hours 30 min ago.
8 0 5 2 [email protected]...
Filter Results
Subject Views Ratingsort descending Comments Author
CEF
Last Reply 6 years 10 months ago.
1167
0.0
0 ITA Terms
Catalyst 4948
Last Reply 6 years 9 months ago.
1653
0.0
0 Ashley Price
Cisco_Catalyst_6506-E_Switch
Last Reply 6 years 9 months ago.
1898
0.0
0 Ashley Price
Cisco_Catalyst_6509-E_Switch
Last Reply 6 years 9 months ago.
2560
0.0
0 Ashley Price
SFP
Last Reply 6 years 10 months ago.
4185
0.0
0 ITA Terms
GARP
Last Reply 6 years 9 months ago.
7638
0.0
0 ITA Terms
GMRP
Last Reply 5 years 2 months ago.
4852
0.0
0 ITA Terms
How to Configure Private Hosts in a Cisco Catalyst 6500 switch
Last Reply 6 years 9 months ago.
2173
0.0
0 SunilKhanna
MAC Addresses used by the Cisco 3750
Last Reply 6 years 10 months ago.
1718
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 10 months ago.
1115
0.0
0 SunilKhanna
The power management and environmental monitoring features on the Cisco Catalyst 4000/4500 switches
Last Reply 6 years 9 months ago.
262
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 1 year 1 month ago.
8687
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 9 months ago.
1817
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 9 months ago.
876
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 8 months ago.
525
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 9 months ago.
2060
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 9 months ago.
2925
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 9 months ago.
1573
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 9 months ago.
11923
0.0
0 TCC_2
User receives periodic %SPANTREE-3-PORTDEL_FAILNOTFOUND syslog messages
Last Reply 6 years 9 months ago.
661
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 9 months ago.
483
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 12 months 2 days ago.
9076
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 3 months ago.
4389
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 9 months ago.
465
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 9 months ago.
2224
0.0
0 TCC_2
Filter Results
Subject Views Ratingsort descending Comments Author
blog MPLS Conference 2010 and Cisco Leadership
Last Reply 5 years 5 months ago.
3132
0.0
0 mmorrow
blog Cloud Computing: Update ITU-T Focus Group and OMG-Hosted Telecom Cloud Conference
Last Reply 5 years 2 months ago.
1560
0.0
2 mmorrow
blog From Internet of Things to Web of Things
Last Reply 5 years 3 months ago.
2552
0.0
0 mmorrow
blog FabricPath: Cisco’s New Technology of Extending Layer 2 Network Without Spanning Tree
Last Reply 5 years 3 months ago.
3272
0.0
0 TS-newsletter
blog Machine-to-Machine Communications as a Subset of Internet of Things
Last Reply 4 years 8 months ago.
2109
0.0
0 mmorrow
blog Troubleshooting L2 issues - ARP Poisoning
Last Reply 4 years 3 months ago.
8715
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 4 months ago.
1661
0.0
0 ciscomoderator
blog Chalk Talk: The Secret to Successful QoS Deployments: A Well-Defined End-to-End QoS Strate
Last Reply 2 years 1 month ago.
344
0.0
0 Julie Burruss
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 2 years 6 days ago.
141
0.0
0 vishal_2007
blog Upcoming Ask the Expert Event with Cisco Designated VIP Marwan Al-shawi May 12-23
Last Reply 1 year 12 months ago.
141
0.0
0 Francine Richards
blog License Activation on 4500
Last Reply 1 year 6 months ago.
1076
0.0
1 sheraz butt
blog Three Tips for a Successful Review Period
Last Reply 6 months 4 weeks ago.
50
0.0
0 marobbs
blog Network Compliance Analysis
Last Reply 6 months 4 weeks ago.
51
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0 marobbs
blog Expert Insights: Network Optimization
Last Reply 6 months 4 weeks ago.
61
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0 marobbs
blog Prepare for the Collector
Last Reply 6 months 3 weeks ago.
57
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0 marobbs
blog Who Should Attend The Kickoff Meeting?
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51
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blog Network Optimization: The 90-Day Plan
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70
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blog Collector Security
Last Reply 5 months 3 weeks ago.
27
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blog Spanning Tree Protocol, from a feature CCNA´s Perspective, by Gerald C. Paciello
Last Reply 1 month 3 days ago.
841
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0 Gerald C. Paciello
blog IPv6 for future CCNAs – Part II
Last Reply 2 weeks 1 day ago.
187
5.0
0 Gerald C. Paciello
blog Catalyst 3850 and 4500 compatibility with power supply Phase-phase in IT mode
Last Reply 1 week 2 days ago.
4
0.0
0
blog Catalyst 3850 and 4500 compatibility with power supply Phase-phase in IT mode
Last Reply 1 week 2 days ago.
6
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0
blog IPv6 for future CCNAs (+) – Final Part.
Last Reply 1 week 1 day ago.
109
0.0
0 Gerald C. Paciello
blog SWITCH configuration
Last Reply 1 day 17 hours ago.
4
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blog Converting IOS to CatOS in Production Switch
Last Reply 4 years 9 months ago.
2448
3.0
6 Tripat Singh
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