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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Greetings, One of our 4510 switches that had a single active power supply went down early in the morning.  There is no crashfile on this.  I am tr...
22 min 51 sec ago
Hello Guys, I have a Cisco 6503, there are 16 ports on module 3 and they've been set as trunk ports for Layer 2 switches' uplinks for quite long t...
25 min 5 sec ago
Hi supportforums, I have a cisco 887 configured with trusted VLAN11 and untrusted VLAN33. Wired and wireless clients in VLAN11 get routed via the...
6 hours 37 min ago
Hello,  I have a small LAN, based on SG300-52MP 52-Port L3 switch. On this switch I have 3 VLAN (10, 20, 100) and TWO aDSL routers. At current conf...
10 hours 29 min ago
Hi, I have two C9332PQ switches with initial configuration and we need config the breakout mode at some interfaces. When we write the interface br...
10 hours 39 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6726 569 6 1 0
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discussion How to configure a primary and secondary core switches in 6500 series how to link with distributor switches
Last Reply 11 min 11 sec ago.
70 0 5 4 jain.manish94
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2 0 5 2 mark00001111111...
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0 0 0 0 one_of_alex1
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30 0 0 10 Giuseppe Larosa
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1 0 0 1 mark malone
discussion VSS in Cisco C 4500-X switches
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23 0 5 6 Rolf Fischer
discussion 6500 SUP720 upgrade problem
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74 0 0 11 Christos Papage...
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Last Reply 1 hour 36 min ago.
17 0 0 3 mark malone
discussion Do not show useless logging,such as DAI That is too much.
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375 0 5 11 Rolf Fischer
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41 0 5 6 mark malone
discussion Creating sub interfaces on 3650
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1 0 0 1 Boris Uskov
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7 0 5 4 muchan0124
discussion Adding subnets to ASA 5505 basic
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16 0 0 1 Philip D'Ath
discussion Cisco Nexus 9372TX Switch
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2 0 0 0 utawakevou
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Last Reply 2 hours 47 min ago.
0 0 0 0 shoaib sheikh
discussion Ask the Expert: Troubleshooting High CPU in Catalyst Switches
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1447 4 5 62 vasanth77
discussion Cisco WS-C6509-E Rommon Mode
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15 0 0 3 InayathUlla Sharieff
discussion Internal to internal access
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18 0 5 4 Sunghwan Yoo
discussion DHCP Snooping Fundamentals
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3 0 0 1 loris.marcellini
discussion QoS
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26 0 0 9 Madhukrishnan G...
discussion QoS - Default queue configuration
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55 0 0 9 Ross
discussion fiber uplink switch 24 and 48 port
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15 0 0 3 Joseph W. Doherty
discussion %SPANTREE-2-LOOPGUARD_UNBLOCK: Loop guard unblocking port =========== what could be the reason???
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31 0 0 3 paul driver
discussion CTS & Spanning Tree
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discussion cisco router 2800
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6 0 0 1 Peter Paluch
Filter Results
Subject Views Rating Comments Author
Потенциальная проблема OSPF NSF и Multi-chassis HA
Last Reply 21 hours 4 min ago.
2
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How to use Time-Domain Reflectometer (TDR)
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91126
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Understanding MSFC, PFC and DFC roles in Catalyst 6500 Series Switch
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56672
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14 SunilKhanna
Understanding Ethernet Virtual Circuits (EVC)
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307387
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43 plumbis
3850 switch - IOS XE upgrade Detailed (standalone)
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10753
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7 Furose Khan Mohammed Ali
IPV6 on the Cisco 877
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34765
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0 Andrew Judson
QUICK TIPS: Installing Multiple Cisco Switches - Video
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Error Message:%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface <interface> Power Controller reports power Imax error detected
Last Reply 3 weeks 4 days ago.
15591
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5 Sivagami Narayanan
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Nexus - vPC Recommendations
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25573
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4 pnagpal
The Cisco Discovery Protocol displays the "%CDP-4-DUPLEX_MISMATCH" error message on Catalyst fixed configuration switches running IOS software.
Last Reply 1 month 3 weeks ago.
19398
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1 TCC_2
The "%Error formatting slot0 (Can not find flash algorithm)" error message is displayed during an attempt to format the ATA flash card in Cisco Catalyst 6000/6500 series switches
Last Reply 1 month 3 weeks ago.
2552
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1 TCC_2
4500X-32 IOS upgrade procedure
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35
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0 butturwa
How to Form a Catalyst 3850 Data-Stack and Power-Stack
Last Reply 2 months 1 week ago.
1113
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2 Luis Villanueva Brito
How to configure Ether Switch Modules connected to a router
Last Reply 2 months 1 week ago.
2497
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2 TCC_2
What is the difference between an IP base image and an IP services image
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202920
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10 tahirshabbir
How to configure a Cisco Catalyst Express 500 series switch
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18427
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Routing Protocol Selection Guide - IGRP, EIGRP, OSPF, IS-IS, BGP
Last Reply 3 months 1 week ago.
154761
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3850: Understanding interface configuration on NM modules
Last Reply 3 months 2 weeks ago.
33827
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I am receiving some error like broadcast and input error please see detail, Is it normal ?
Last Reply 4 months 2 days ago.
51
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2 Sergio Alvares
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0 InayathUlla Sharieff
Filter Results
Subject Views Rating Comments Author
blog Loading an IOS on a switch via Xmodem
Last Reply 3 weeks 2 days ago.
65730
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11 Aninda Chatterjee
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139
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