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.

 

Provide answers to questions in this community that are awaiting a correct answer.

Hi! I'm having an issue with my 4510R-E. It hasn't effected services (yet), but I'm concerned. I've been reading through the docs but can't seem t...
5 hours 18 min ago
I am trying to configure a floating route but an aggregate route already exist in the routing table.  As such the floating route is more specific a...
15 hours 46 min ago
Hi team !I'm trying to get the CPU Utilization of my SG220-50 50-Port Gigabit Smart Plus Switch : I downloaded the correct MIB directly from CISCO...
19 hours 26 min ago
Hello, We use a lot of WS-2960-48TT-L, and since the ip http secure-server + ISE implementation, we have a lot of crash. In 1 month, i replaced 7-...
21 hours 16 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6724 569 6 1 0
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Subject Views Votes Rating Replies Last replied by
discussion Using DTP on a port-channel
Last Reply 3 min 36 sec ago.
0 0 0 0 Jeremy DUBRULLE
discussion VoIP Server behind a 100/10 fa0/1 cisco 2960 switch?
Last Reply 12 min 13 sec ago.
17 0 5 4 bradfordjboyle
discussion Downgrade WS-C3850-24T-E (16.x -> 3.x) -
Last Reply 14 min 21 sec ago.
5 0 0 6 [email protected]
discussion Replacing VG224 in Cisco Unified Call Manager (CUCM)
Last Reply 15 min 24 sec ago.
31 0 0 7 saif musa
discussion Cisco Management interface on a L3 switch (routable or not) ?
Last Reply 34 min 8 sec ago.
24 0 5 6 SJ K
discussion Cisco 2960x SVI do not get DHCP
Last Reply 43 min 14 sec ago.
0 0 0 0 caromay02
discussion Enabling and Verifying CEF load-balancing
Last Reply 55 min 36 sec ago.
25 0 5 7 SJ K
discussion Nexus L2 & L3 issue
Last Reply 57 min 37 sec ago.
0 0 5 2 jmhouse96
discussion PWR-80W-AC vs PWR-1900-POE
Last Reply 57 min 46 sec ago.
0 0 0 1 Furose M
discussion Adding a physical device in a virtual design?
Last Reply 1 hour 13 min ago.
65 0 0 16 Paul Chapman
discussion What does the "no platform punt-keepalive disable-kernel-core" command mean?
Last Reply 1 hour 15 min ago.
0 0 5 2 rweir0001
discussion FNF (Netflow) Not getting TCP/UDP ports or interfaces
Last Reply 1 hour 24 min ago.
0 0 0 0 bnidacoc
discussion Floating Route Not Floating
Last Reply 1 hour 25 min ago.
15 0 0 1 davy.timmermans
discussion poe failure
Last Reply 1 hour 32 min ago.
13 0 0 4 paul driver
discussion NTP Invalid insane
Last Reply 1 hour 35 min ago.
0 0 0 0 Vincent Boulet
discussion VSS linking to 2 stacks
Last Reply 1 hour 35 min ago.
8 0 0 6 paul driver
discussion Need help in configuring Switching and Routing on Cisco 1812
Last Reply 1 hour 43 min ago.
27 0 5 3 srinivas.tammali
discussion unstacking C3850 switch issue
Last Reply 1 hour 43 min ago.
23 0 0 9 paul driver
discussion Default Route Redistribution into OSPF (from other Routing Protocols)
Last Reply 2 hours 12 min ago.
0 0 5 3 Peter Paluch
discussion switch at vlan 20 cannot communicate with vlan 10 (IP routing enabled)
Last Reply 2 hours 18 min ago.
15 0 0 7 pwwiddicombe
discussion ISP Handoff to 2950
Last Reply 2 hours 29 min ago.
9 0 0 1 [email protected]
discussion LED is blinking green
Last Reply 2 hours 49 min ago.
40 0 0 7 pwwiddicombe
discussion Cisco 3850 switches that need to be set up as a chassis.
Last Reply 3 hours 22 min ago.
0 0 5 2 victoriabardy
discussion upload a file to RP's bootdisk of 6500 through CMP?
Last Reply 3 hours 31 min ago.
4 0 0 5 Furose M
discussion Downgrade WS-C3850-24T-E (16.x -> 3.x) -
Last Reply 3 hours 31 min ago.
0 0 0 0 [email protected]
Filter Results
Subject Views Rating Comments Author
Troubleshooting tips for 3750X Stack power feature
Last Reply 4 days 18 hours ago.
19798
4.3
6 pnagpal
Webcast Slides: Cisco Catalyst 2960-X and 2960-XR Series Switches Overview, Configuration,
Last Reply 1 week 20 hours ago.
115
5.0
0 roor
Webcast FAQs: Catalyst 2960X & 2960XR Switches Overview, Configuration and Troubleshooting
Last Reply 1 week 20 hours ago.
0
0.0
0 roor
Importance of BPDU Guard and BPDU Filter !!
Last Reply 1 week 2 days ago.
140183
4.7
13 Ganesh Hariharan
DHCP listener
Last Reply 1 week 3 days ago.
0
0.0
0 netbeginner
3850 switch - IOS XE upgrade Detailed (standalone)
Last Reply 1 week 3 days ago.
16063
5.0
18 Furose M
Understanding MSFC, PFC and DFC roles in Catalyst 6500 Series Switch
Last Reply 1 week 4 days ago.
61184
5.0
15 SunilKhanna
How to use Time-Domain Reflectometer (TDR)
Last Reply 1 week 4 days ago.
101216
5.0
93 Leo Laohoo
virtual switching system (vss) español
Last Reply 2 weeks 21 hours ago.
4
0.0
0 jmp780718
CCNP Switching Notes Español
Last Reply 2 weeks 22 hours ago.
5
0.0
0 jmp780718
Easy Traffic Generator (Works with GNS3)
Last Reply 2 weeks 4 days ago.
0
0.0
0 Carlos Villagran
NXOS Log Finder Tool for Nexus Switches
Last Reply 2 weeks 4 days ago.
53
4.5
0 aeguiart
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 2 weeks 6 days ago.
315060
5.0
46 plumbis
Changing a Switch Member Number in a 3850 Stack
Last Reply 3 weeks 17 hours ago.
0
0.0
0 Carlos Villagran
Catalyst 4500 CPU Packet Buffer Parser
Last Reply 3 weeks 3 days ago.
3
0.0
0 aeguiart
Cisco CatOS vs. IOS Commands
Last Reply 3 weeks 6 days ago.
1
0.0
0 Daniel Vieceli
Route to Host Stuck on Switch
Last Reply 1 month 46 min ago.
3403
5.0
5 Adrian Martinez
Nexus - vPC Recommendations
Last Reply 1 month 1 week ago.
28405
5.0
5 pnagpal
What’s New on Cisco Catalyst 6500 Series? - FAQ from Live Webcast
Last Reply 1 month 1 week ago.
306
0.0
1 ashirkar
How to Form a Catalyst 3850 Data-Stack and Power-Stack
Last Reply 1 month 1 week ago.
2535
5.0
4 Luis Villanueva Brito
Recognize the purpose & functions of various network devices:Router, Switch, Hub & Bridge.
Last Reply 1 month 1 week ago.
40
0.0
0 Gerald C. Paciello
What is the difference between an IP base image and an IP services image
Last Reply 1 month 2 weeks ago.
214153
5.0
14 tahirshabbir
3850: Understanding interface configuration on NM modules
Last Reply 1 month 2 weeks ago.
40120
5.0
16 Richard Primm
LICENSING on 2900/3500/3700
Last Reply 1 month 2 weeks ago.
23209
0.0
5 ranraju
Does cisco 2921 ip base supports nat and static route ....can any one please advise
Last Reply 2 months 5 days ago.
20
0.0
3 mohdayaz1981
Filter Results
Subject Views Rating Comments Author
blog SWITCH configuration
Last Reply 2 weeks 3 days ago.
14
0.0
0 julius78_baclaan1
blog IPv6 for future CCNAs (+) – Final Part.
Last Reply 3 weeks 2 days ago.
138
0.0
0 Gerald C. Paciello
blog Catalyst 3850 and 4500 compatibility with power supply Phase-phase in IT mode
Last Reply 3 weeks 3 days ago.
9
0.0
0
blog Catalyst 3850 and 4500 compatibility with power supply Phase-phase in IT mode
Last Reply 3 weeks 3 days ago.
5
0.0
0
blog Loading an IOS on a switch via Xmodem
Last Reply 3 weeks 6 days ago.
78658
5.0
18 Aninda Chatterjee
blog How would a multicast be delivered with incongruent IP/MAC addressing?
Last Reply 1 month 8 hours ago.
232
5.0
4 Peter Paluch
blog IPv6 for future CCNAs – Part II
Last Reply 1 month 22 hours ago.
229
5.0
0 Gerald C. Paciello
blog IPv6 for future CCNAs – Part I
Last Reply 1 month 2 days ago.
350
4.0
1 Gerald C. Paciello
blog Spanning Tree Protocol, from a feature CCNA´s Perspective, by Gerald C. Paciello
Last Reply 1 month 2 weeks ago.
904
5.0
0 Gerald C. Paciello
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 5 months 2 weeks ago.
28453
4.7
13 Akula Jyoti Lakshmi
blog Collector Security
Last Reply 6 months 1 week ago.
27
0.0
0 marobbs
blog Who Should Attend The Kickoff Meeting?
Last Reply 6 months 2 weeks ago.
52
0.0
0 marobbs
blog Network Optimization: The 90-Day Plan
Last Reply 6 months 3 weeks ago.
76
0.0
0 marobbs
blog Prepare for the Collector
Last Reply 7 months 1 week ago.
60
0.0
0 marobbs
blog Expert Insights: Network Optimization
Last Reply 7 months 1 week ago.
61
0.0
0 marobbs
blog Network Compliance Analysis
Last Reply 7 months 1 week ago.
57
0.0
0 marobbs
blog Three Tips for a Successful Review Period
Last Reply 7 months 1 week ago.
53
0.0
0 marobbs
blog Nexus 7000 ACL logging (OAL)
Last Reply 7 months 2 weeks ago.
19798
5.0
8 Robert Taylor
blog Active /Active Internet Load balancing with High availability ( AS Prepend Path)
Last Reply 7 months 3 weeks ago.
266
5.0
0 Ganesh Hariharan
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 10 months 3 weeks ago.
29960
5.0
1 Shashank Singh
blog License Activation on 4500
Last Reply 1 year 7 months ago.
1124
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 1 year 7 months ago.
7956
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 1 year 10 months ago.
3353
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 1 year 10 months ago.
24783
5.0
3 ajaju
blog Configuring a frame-relay switch
Last Reply 2 years 3 days ago.
8790
5.0
7 Aninda Chatterjee
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