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 have cisco catalyst 3560 switch .Switch   Ports  Model              SW Version              SW Image------   -----  -----              -------...
1 hour 5 min ago
Dear all,I configured ssh on my router and since the could not login using putty on my LAN or WAN. i was using telnet before i configured ssh.The e...
4 hours 4 min ago
Good morning I would like to know what tools and parameters can be used to measure network performance? The main idea is to determine if the networ...
5 hours 29 min ago
Hi,I have a pair of Catalyst 6500 switches and another pair of Nexus 7000 Switches. Catalyst 6500 has few set of vlans for which it's a spanning-tr...
8 hours 54 min ago
Hi all,      I observed the below logs in one of the switch (Nexus 3000- version 5.0(3)U1(1a)). I have few question for this logs. Do this logs imp...
9 hours 24 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6733 569 6 1 0
Filter Results
Subject Views Votes Rating Replies Last replied by
discussion Link down on one side and up/up on the other
Last Reply 10 min 24 sec ago.
0 0 0 2 dbuckley77
discussion ip dhcp snooping client can't get ip dhcp
Last Reply 54 min 45 sec ago.
3 0 0 1 Rolf Fischer
discussion port-channel of 4 interfaces with no output rate...only input rate
Last Reply 55 min 23 sec ago.
8 0 0 2 steve-fuller
discussion ACL configuration issue
Last Reply 1 hour 5 min ago.
0 0 0 0 nareshkannas
discussion How to delay EIGRP adjacency Check
Last Reply 1 hour 22 min ago.
9 0 0 4 steve-fuller
discussion Is 100MB avaliable in N7K-F348XP-25
Last Reply 2 hours 23 min ago.
1 0 0 2 Reza Sharifi
discussion Cisco 6506 Switch
Last Reply 2 hours 27 min ago.
12 0 5 2 Madhukrishnan G...
discussion MAC MOVE Notiication
Last Reply 2 hours 49 min ago.
3 0 0 1 Madhukrishnan G...
discussion vss
Last Reply 2 hours 55 min ago.
16 0 0 3 Madhukrishnan G...
discussion ASA5510 access from one VLAN to another but not the other way around
Last Reply 3 hours 4 min ago.
10 0 0 3 Hitesh Vinzoda
discussion Nexus 3000 switch ---Error : bcm_usd_isr_switch_event_cb:429
Last Reply 3 hours 5 min ago.
0 0 0 0 PdhineshK
discussion Network error:connection Refused
Last Reply 3 hours 12 min ago.
0 0 0 1 Hitesh Vinzoda
discussion Network error:connection Refused
Last Reply 4 hours 4 min ago.
0 0 0 0 paulike12
discussion SWITCH 3850 NETWORK MODULE AND GLC-SX-MM COMPATIBILITY
Last Reply 4 hours 24 min ago.
24 0 0 5 will.cullen
discussion DHCP snooping clients not getting IP address
Last Reply 4 hours 26 min ago.
5856 1 5 16 Bekzod Fakhriddinov
discussion Storm control blocking
Last Reply 4 hours 45 min ago.
17 0 0 4 afsharki2
discussion how to bond serials
Last Reply 4 hours 51 min ago.
6 0 0 1 Hitesh Vinzoda
discussion Uplink between 2 Nexus VPC domains
Last Reply 5 hours 21 min ago.
7 0 5 2 amith.nayak1
discussion Performance of the network
Last Reply 5 hours 29 min ago.
0 0 0 0 jfigueroa8
discussion How to change Cost/admin distance of static route
Last Reply 5 hours 37 min ago.
0 0 0 1 steve-fuller
discussion Control Plane, Data Plane and Back Plane
Last Reply 5 hours 45 min ago.
7 0 0 3 Joseph W. Doherty
discussion 1000BaseSX SFP GIG port errors - DOWN/DOWN. Rx power low alarm; Operating value: -25.7 dBm
Last Reply 6 hours 40 sec ago.
11 0 0 2 Nathan Roxby
discussion Quality of Service on Cisco 2940
Last Reply 6 hours 2 min ago.
18 0 5 3 Joseph W. Doherty
discussion Vulnerability Assessment SSLV3 Poodle attack
Last Reply 6 hours 9 min ago.
9 0 4 4 haydn.tickner5
discussion Router not forwarding traffic out interface it was received on
Last Reply 6 hours 26 min ago.
0 0 0 1 Karsten Iwen
Filter Results
Subject Views Rating Comments Author
Error Message:%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface <interface> Power Controller reports power Imax error detected
Last Reply 44 min 40 sec ago.
13430
5.0
4 Sivagami Narayanan
Running 40 routers with IOU in 4GB RAM
Last Reply 21 hours 27 min ago.
0
0.0
0 Sudeb Das
"Etherchannel Loadbalancing on Catalyst Switches"
Last Reply 1 week 1 day ago.
20802
5.0
3 Souvik Ghosh
SSH version 2 no IOS cat4000-i5s-mz.122-25.EWA14.bin
Last Reply 1 week 5 days ago.
17
0.0
1 Sergio Alvares
Cisco Nexus 7000 / 7700 Line Cards
Last Reply 1 week 5 days ago.
42
0.0
0 Shaun Hummel
Egress QOS
Last Reply 3 weeks 2 days ago.
52875
5.0
13 somgupta
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 4 weeks 1 day ago.
50296
4.7
51 ashirkar
Cisco 891 fresh configuration/management without console cable
Last Reply 1 month 1 week ago.
24
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 1 month 1 week ago.
121
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 1 month 1 week ago.
38
0.0
0 KHALEELUR RAHMAN.A
unable to ping pc from (vlan-A) to pc on (vlan-B)
Last Reply 1 month 3 weeks ago.
32
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 1 month 3 weeks ago.
25751
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 1 month 3 weeks ago.
95662
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 2 months 8 hours ago.
4114
0.0
0 TCC_2
3850 Boot Mode
Last Reply 2 months 1 day ago.
1592
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 2 months 4 days ago.
18693
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 2 months 1 week ago.
79
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 2 months 2 weeks ago.
49
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 2 months 2 weeks ago.
47736
5.0
2 James D Hensley
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 2 months 2 weeks ago.
292569
5.0
37
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 2 months 3 weeks ago.
8160
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 2 months 3 weeks ago.
3628
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 2 months 3 weeks ago.
4533
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 2 months 3 weeks ago.
634
0.0
0 TCC_2
How to configure a Flex Link for link-level redundancy in Cat switches that run IOS
Last Reply 2 months 3 weeks ago.
11462
0.0
0 TCC_2
Filter Results
Subject Views Rating Comments Author
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 3 weeks 4 days ago.
25748
5.0
1 Shashank Singh
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 6 months 17 hours ago.
19842
4.6
12 jakula
blog License Activation on 4500
Last Reply 9 months 2 weeks ago.
331
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 9 months 2 weeks ago.
7306
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 1 year 1 week ago.
2444
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 1 year 1 week ago.
18029
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 1 year 1 month ago.
47035
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 1 year 2 months ago.
6466
5.0
7 Aninda Chatterjee
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 1 year 2 months ago.
394
5.0
0 Francine Richards
blog Upcoming Ask the Expert Event with Cisco Designated VIP Marwan Al-shawi May 12-23
Last Reply 1 year 2 months ago.
9
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 2 months ago.
119
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 3 months ago.
377
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 3 months ago.
1407
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 3 months ago.
756
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 3 months ago.
115
5.0
0 jakula
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 4 months ago.
8210
5.0
9 rucjain
blog Chalk Talk: The Secret to Successful QoS Deployments: A Well-Defined End-to-End QoS Strate
Last Reply 1 year 4 months ago.
289
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 4 months ago.
7046
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 7 months ago.
514
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 11 months ago.
2006
4.7
1 Anand G
blog Parity Error.
Last Reply 2 years 3 days ago.
2363
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 2 years 3 weeks ago.
16580
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 8 months ago.
4373
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 9 months ago.
5906
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 3 years 2 weeks ago.
11072
5.0
7 pnagpal
Filter Results
LAN, Switching and Routing
Views: 1016
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 1199
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 754
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
LAN, Switching and Routing
Views: 15662
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4.8 (4 ratings)
LAN, Switching and Routing
Views: 315
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 388
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4 (1 ratings)
LAN, Switching and Routing
Views: 211
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 210
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 513
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
LAN, Switching and Routing
Views: 8
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 43
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 35
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 411
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 652
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 373
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (3 ratings)
by rucjain
LAN, Switching and Routing
Views: 375
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (4 ratings)
LAN, Switching and Routing
Views: 10
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 323
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (2 ratings)
LAN, Switching and Routing
Views: 225
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Filter Results

Events

May 11
Ask the Expert
April 13
Ask the Expert
January 5
Ask the Expert
August 15, 2014
Ask the Expert
July 21, 2014
Ask the Expert
March 31, 2014
Ask the Expert
April 1, 2014
Webcasts
March 10, 2014
Webcasts
July 30, 2012
Ask the Expert
December 12, 2012
Techtalks
  • 1
  • 2
  • 3
  • 4
  • 5
July 27, 2012
Facebook Forums
  • 1
  • 2
  • 3
  • 4
  • 5
December 31, 1969
Facebook Forums
May 25, 2012
Facebook Forums
  • 1
  • 2
  • 3
  • 4
  • 5
October 11, 2011
Facebook Forums
  • 1
  • 2
  • 3
  • 4
  • 5
January 6, 2014
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
October 21, 2013
Ask the Expert
January 17, 2012
Webcasts
October 11, 2009
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
August 1, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
August 15, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
August 29, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
October 10, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5

Actions

 
 

Featured Content

Popular Discussions

Popular Documents

Rank Username Points
1 17,555
2 9,881
3 8,217
4 8,198
5 8,159
Rank Username Points
254
121
115
106
101