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, could you please tell me what is the difference between datetime and uptime !? when we configure: service timestamps log uptimeandservice times...
3 min 17 sec ago
Hi,I have Cisco WS-C4510R+E with sup WS-X45-SUP7-E. IOS version on this switch is cat4500e-universal.SPA.03.04.05.SG.151-2.SG5.bin . Enterprises li...
11 min 28 sec ago
Unable to consistently ping a device from the 3750x that is connected to a vlan on the 2960x stack (po1 between 3750x and 2960x).  ARP statements a...
3 hours 41 min ago
Dear Experts After ISSU from 151-1.SY1 to 151-1.SY4 on Catalyst 6509-E SUP720 everything works as expected but we recognized different output from...
by d.bader
16 hours 53 min ago
Dear All, What's your opinion about mixing these two technologies in the same Datacenter. IBM VLAG will be used  mainly on the Blade Centers, and v...
17 hours 46 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6739 569 6 1 0
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Subject Views Votes Rating Replies Last replied by
discussion datetime vs uptime !?
Last Reply 3 min 17 sec ago.
0 0 0.0 0 mohammed hashim
discussion Cisco VSS dual-active fast-hello not supported
Last Reply 11 min 28 sec ago.
0 0 0.0 0 Nishit Bhosale
discussion Cisco 3560 & 3850 SW
Last Reply 50 min 11 sec ago.
17 0 0.0 1 radu-stoica
discussion Is it possible for 3560 or 3850 control MAC address all client?
Last Reply 2 hours 32 min ago.
0 0 0.0 1 Reza Sharifi
discussion ARP issues with 3750X & 2960X Stack
Last Reply 3 hours 41 min ago.
0 0 0.0 0 dean.anderson@k...
discussion TDR cable testing support on the 2960-X
Last Reply 3 hours 52 min ago.
35 0 0.0 8 Leo Laohoo
discussion Block port TCP 5061 on L2 switch
Last Reply 4 hours 13 min ago.
13 0 0.0 1 Leo Laohoo
discussion Sourcing from secondary addresses off single interface
Last Reply 5 hours 16 min ago.
7 0 0.0 1 Reza Sharifi
discussion VACL - restricting vlan access
Last Reply 5 hours 50 min ago.
16 0 0.0 1 warrenmarksilva
discussion SG300 L3 switch/inter-VLAN routing - ASA5505 firewall
Last Reply 1 day 1 hour ago.
10 0 0.0 0 Robert Bradley-Combs
discussion Nexus 9000 are Trustsec enabled?
Last Reply 7 hours 17 min ago.
126 0 0.0 2 jonesandrew
discussion ping v4 echo replies are split into 3 fragments?
Last Reply 8 hours 37 min ago.
18 0 0.0 3 Peter Paluch
discussion voice qos
Last Reply 8 hours 50 min ago.
24 0 0.0 4 Anukalp S
discussion CWDM on 3850-12S or 3850-24S
Last Reply 9 hours 41 min ago.
37 0 5 6 Leo Laohoo
discussion Routing priority question
Last Reply 9 hours 47 min ago.
27 0 0.0 5 Jon Marshall
discussion 2960X Stack Fails After reload Command
Last Reply 10 hours 40 min ago.
90 0 0.0 6 jcp408ADP
discussion N5K upgrade 7.0(1) - %STP-2-DISPUTE
Last Reply 11 hours 1 min ago.
162 1 3 9 glen.grant
discussion Nexus 7009 N7K-M2206FQ-23L 40GigE Port Configuration Problem
Last Reply 11 hours 11 min ago.
20 0 0.0 2 Reza Sharifi
discussion Access-list Per vlan
Last Reply 11 hours 51 min ago.
15 0 0.0 2 rizwanr74
discussion Power-Related Issues for 6500s
Last Reply 12 hours 27 min ago.
24 0 0.0 1 Madhukrishnan G...
discussion Cisco Bug: CSCtf85481 - Sup6L-E reloads silently
Last Reply 12 hours 31 min ago.
15 0 0.0 2 m.teixeira
discussion Cata 6500 SUP
Last Reply 12 hours 36 min ago.
17 0 0.0 1 Madhukrishnan G...
discussion Cisco 3850 routing issues
Last Reply 12 hours 53 min ago.
39 0 0.0 4 Andre Neethling
discussion archive download-sw: Can it be run before a maintenance window
Last Reply 13 hours 9 min ago.
28 0 5 3 Joseph W. Doherty
discussion %PLATFORM_ENV-1-PWR_RPS: Redundant power supply faulty or in standby mode
Last Reply 13 hours 10 min ago.
8 0 0.0 1 Madhukrishnan G...
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Subject Views Rating Comments Author
Single-sided vs double-sided vpc
Last Reply 1 day 18 hours ago.
8583
3.7
15 pnagpal
EEM Script for collecting data during Intermittent High CPU issue
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Deep dive into EIGRP Summarization
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15
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0 pnagpal
Routing Protocol Selection Guide - IGRP, EIGRP, OSPF, IS-IS, BGP
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93664
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1 Shaun Hummel
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392
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0 TCC_2
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
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96803
4.7
47 ashirkar
example of Embedded Event Manager (EEM) on my 881W - to shut down a interface at 1am
Last Reply 4 weeks 15 hours ago.
191
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2 dshornstein
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3858
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1 inderdeeps
Switch Fabric- Troubleshooting tips
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18368
5.0
2 pnagpal
The "%SW_DAI-4-DHCP_SNOOPING_DENY:" error message is received when configuring the dynamic ARP inspection in switches that run Cisco IOS Software
Last Reply 1 month 1 week ago.
21932
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4 TCC_2
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5 pnagpal
ITD: Load Balancing, Traffic Steering & Clustering using Cisco switches
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55
5.0
0 expertadvisor20151
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5120
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2 mrabbi
OSPF Design Best Practices
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34893
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2 pnagpal
Importance of BPDU Guard and BPDU Filter !!
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79235
4.7
11 ganeshh.iyer
The VLAN goes to the administratively down state if two or more VLANs are configured
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27330
3.7
3 TCC_2
Nexus - vPC Recommendations
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17500
5.0
2 pnagpal
Known Issues on Cisco 7600 Router ES+ Line Cards
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12479
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6 Aleksandar Vidakovic
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
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21544
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12 jakula
blog License Activation on 4500
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153
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1 sheraz butt
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7010
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7 Robert Taylor
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2105
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5 aninchat
blog Booting Cisco Router from a TFTP server
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14475
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3 ajaju
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7 aninchat
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7 aninchat
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121
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0 Francine Richards
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2 srereddy
blog Flexlink in Cisco Layer 2 network
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81
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0 jakula
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20655
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0 shashasi
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
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9 rucjain
blog Chalk Talk: The Secret to Successful QoS Deployments: A Well-Defined End-to-End QoS Strate
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271
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0 Julie Burruss
blog Switch: How to test a cable status?
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4738
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3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
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1415
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1 ramugaju
blog About "TestErrorCounterMonitor" in 6500/7600
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1 Anand G
blog Parity Error.
Last Reply 1 year 7 months ago.
2258
4.5
4 InayathUlla Sharieff
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