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.

Hello everybody, Could someone give an definite answer, better to based on personal experience - is it possible to attach B22 FEX going to the IBM...
1 hour 7 min ago
Hi all,Please correct me if I am wrong. I am reading up on DCE and DTE devices such asDTE devices = server, routerDCE devices = hub, switch, modemI...
10 hours 38 min ago
I have a Cisco 1861 Router which has a couple WIC cards (routing analog telephone numbers) and is currently getting its connection through a T1 Int...
13 hours 15 min ago
Hello,I have several devices of the Cat4K family (C4948, C4900M, C4500X) for which "show environment" displays a "Switch Bandwidth Utilization" per...
21 hours 50 min ago
Hi, I have 2 VSS links configured between both my Cisco 6500 switch in a port-channel and we are planning to add two more links into that port-chan...
1 day 29 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6738 569 6 1 0
Filter Results
Subject Views Votes Rating Replies Last replied by
discussion WS-X45-SUP8-E: %SFF8472-5-THRESHOLD_VIOLATION
Last Reply 4 min 29 sec ago.
39 0 5 8 johan oosterwaal
discussion Assigning a seperate internet connection to a certain vlan .
Last Reply 19 min 45 sec ago.
55 0 5 13 BilalNass
discussion no internet access for vlan devices
Last Reply 42 min 4 sec ago.
15 0 5 4 devils_advocate
discussion Different spanning tree protocols behavior
Last Reply 44 min 5 sec ago.
17 0 0.0 2 devils_advocate
discussion route summarization - could this be wrong ?
Last Reply 1 hour 20 sec ago.
59 0 5 13 szejiekoh
discussion Connecting IBM B22 FEXes to Nexus 7000
Last Reply 1 hour 7 min ago.
0 0 0.0 0 irakli_n
discussion Configuring PBR on 4500
Last Reply 1 hour 32 min ago.
54 1 0.0 2 Dennis Mink
discussion Unable to do show run Cisco 4507
Last Reply 1 hour 34 min ago.
22 0 5 3 Leo Laohoo
discussion Management port in Cisco Switches (are they really physical port)
Last Reply 1 hour 36 min ago.
66 0 5 15 Leo Laohoo
discussion Ask the Expert: NGWC (3850/5760): Architecture and Deployment
Last Reply 1 hour 43 min ago.
305 0 5 35 John Haitem
discussion Fastest migration method for FEX
Last Reply 2 hours 42 min ago.
3 0 0.0 2 Madhukrishnan G...
discussion 4500 Sup6 Etherchnnel QOS
Last Reply 3 hours 18 min ago.
9 0 0.0 1 anton_tabay
discussion 3850 stack member has no mac address.
Last Reply 5 hours 46 min ago.
0 0 0.0 1 Leo Laohoo
discussion Multicast source redundancy
Last Reply 5 hours 52 min ago.
26 0 0.0 1 johnd2310
discussion Two VLANs on same Switch with NAT problem.
Last Reply 7 hours 14 min ago.
11 0 0.0 2 ecabrera81
discussion Unable to resolve DNS between VLANs across an ASA5510
Last Reply 7 hours 42 min ago.
0 0 0.0 2 Adam White
discussion Router throughput Cisco 867vae vs ISP provided router
Last Reply 8 hours 45 min ago.
23 0 0.0 7 Leo Laohoo
discussion Catalyst 3560: dot1x port secury - MAB places client MAC in data and voice VLAN
Last Reply 10 hours 17 min ago.
99 0 0.0 3 DOUG HAYES
discussion DCE / DTE / Clock rate and Bandwidth / Office and DC implementation - Confused!
Last Reply 10 hours 38 min ago.
0 0 0.0 0 szejiekoh
discussion undersize packets
Last Reply 11 hours 9 min ago.
0 0 0.0 2 Benjamin Saito
discussion Setting port for Voice + Data
Last Reply 12 hours 35 min ago.
19 0 5 5 Dennis_Thornton
discussion Performance issue 10Gb/s to 1Gb/s ( 6880-X/6800-IA) 15.2(1)SY0a
Last Reply 12 hours 38 min ago.
1 0 0.0 1 Madhukrishnan G...
discussion Routes determined by destination address
Last Reply 12 hours 59 min ago.
0 0 0.0 1 Jon Marshall
discussion T1 to Broadband Connection
Last Reply 13 hours 15 min ago.
0 0 0.0 0 bsprouse82
discussion 3750X stack with broken 715W power supply
Last Reply 13 hours 35 min ago.
6 0 0.0 2 Madhukrishnan G...
Filter Results
Subject Views Rating Comments Author
Temperature alarms on WS-X6904-40G
Last Reply 4 days 22 hours ago.
7
5.0
0 Madhukrishnan Gopinathan Nair
How to configure an IP access list to control directed broadcasts for the Wake-on-LAN setup
Last Reply 5 days 11 hours ago.
2794
0.0
1 TCC_2
Nexus - vPC Recommendations
Last Reply 6 days 23 hours ago.
18435
5.0
3 pnagpal
Understanding SPAN,RSPAN,and ERSPAN
Last Reply 1 week 4 days ago.
33531
4.7
5 ashirkar
Increased Total output drops/OutDiscards by QoS for Desktop Series Switches Products
Last Reply 2 weeks 2 hours ago.
14
0.0
0 Csc TsWebDocs
Telnet session to FWSM module disconnects due to MTU size issues in 6500 or 7600 switches
Last Reply 2 weeks 6 days ago.
1412
0.0
0 TCC_2
X2-10GB-LRM vs X2-10GB-SR compatability
Last Reply 2 weeks 6 days ago.
1381
0.0
9 yogesh rajguru
Fortify Your LAN with Cisco Catalyst Switching - FAQ from live webcast
Last Reply 2 weeks 6 days ago.
138
5.0
0 Anim Saxena
QoS marking based on the “trust dscp” IOS CLI command
Last Reply 3 weeks 22 hours ago.
20
0.0
0 ben.epskamp
Catalyst 6800 VSS Quad-Sup SSO and Instant Access Overview - FAQ from live webcast
Last Reply 3 weeks 4 days ago.
4738
5.0
2 ashirkar
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 month 1 day ago.
7089
0.0
1 TCC_2
SNMP Engine over 80% CPU 100%!!! ?
Last Reply 1 month 2 days ago.
4242
0.0
3 vita_user
CAM (Content Addressable Memory) VS TCAM (Ternary Content Addressable Memory)
Last Reply 1 month 4 days ago.
43993
4.5
6 Thamaraiselvam Santhanam
3850: Understanding interface configuration on NM modules
Last Reply 1 month 4 days ago.
16234
5.0
8 Richard Primm
Password Recovery on Cisco Catalyst 3850
Last Reply 1 month 5 days ago.
1916
0.0
2 Collin Clark
Cisco 2911 Stuck in ROMMON After CF Format
Last Reply 1 month 1 week ago.
120
0.0
2 Ty Gadberry
Route to Host Stuck on Switch
Last Reply 1 month 1 week ago.
2729
5.0
4 martinez-adrian
Single-sided vs double-sided vpc
Last Reply 1 month 2 weeks ago.
8985
3.7
15 pnagpal
EEM Script for collecting data during Intermittent High CPU issue
Last Reply 1 month 2 weeks ago.
6969
0.0
3 pnagpal
Troubleshooting Nexus 7000 - Useful commands
Last Reply 1 month 2 weeks ago.
3737
0.0
3 pnagpal
Cheat-sheet for Catalyst 6500 with Sup 720
Last Reply 1 month 2 weeks ago.
7064
0.0
2 pnagpal
Deep dive into EIGRP Summarization
Last Reply 1 month 2 weeks ago.
21
0.0
0 pnagpal
Routing Protocol Selection Guide - IGRP, EIGRP, OSPF, IS-IS, BGP
Last Reply 1 month 2 weeks ago.
101151
4.0
1 Shaun Hummel
Understanding MSFC, PFC and DFC roles in Catalyst 6500 Series Switch
Last Reply 1 month 2 weeks ago.
41969
5.0
12 SunilKhanna
Redundant-power-supply support on the Cisco Catalyst Express 500 Series switches
Last Reply 2 months 1 day ago.
396
0.0
0 TCC_2
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 2 months 3 weeks ago.
17639
4.6
12 jakula
blog License Activation on 4500
Last Reply 6 months 6 days ago.
194
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 6 months 1 week ago.
7137
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 9 months 1 week ago.
2253
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 9 months 1 week ago.
15935
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 9 months 4 weeks ago.
39857
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 11 months 1 week ago.
5965
5.0
7 Aninda Chatterjee
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 11 months 2 weeks ago.
386
5.0
0 Francine Richards
blog Upcoming Ask the Expert Event with Cisco Designated VIP Marwan Al-shawi May 12-23
Last Reply 11 months 2 weeks ago.
123
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 11 months 3 weeks ago.
107
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 3 days ago.
321
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 2 weeks ago.
1327
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 2 weeks ago.
743
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 2 weeks ago.
92
5.0
0 jakula
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 1 year 2 weeks ago.
24506
5.0
0 Shashank Singh
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 3 weeks ago.
7921
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 3 weeks ago.
273
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 1 month ago.
5338
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 4 months ago.
1615
0.0
1 ramugaju
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 8 months ago.
1842
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 9 months ago.
2289
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 1 year 9 months ago.
15663
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 5 months ago.
4232
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 6 months ago.
5820
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 9 months ago.
10429
5.0
7 pnagpal
Filter Results
LAN, Switching and Routing
Views: 881
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 1123
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 682
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
LAN, Switching and Routing
Views: 13531
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4.8 (4 ratings)
LAN, Switching and Routing
Views: 288
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 363
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4 (1 ratings)
LAN, Switching and Routing
Views: 186
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 196
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 453
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 8
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 31
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 33
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 405
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 615
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
LAN, Switching and Routing
Views: 316
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (3 ratings)
by rucjain
LAN, Switching and Routing
Views: 343
  • 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: 319
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (2 ratings)
LAN, Switching and Routing
Views: 222
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Filter Results

Today

Events

January 5th
Ask the Expert
August 15th, 2014
Ask the Expert
July 21st, 2014
Ask the Expert
July 9th, 2014
Facebook Forums
March 31st, 2014
Ask the Expert
April 1st, 2014
Webcasts
March 10th, 2014
Webcasts
January 6th, 2014
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
October 11th, 2011
Facebook Forums
  • 1
  • 2
  • 3
  • 4
  • 5
May 25th, 2012
Facebook Forums
  • 1
  • 2
  • 3
  • 4
  • 5
December 31st, 1969
Facebook Forums
July 27th, 2012
Facebook Forums
  • 1
  • 2
  • 3
  • 4
  • 5
December 12th, 2012
Techtalks
July 30th, 2012
Ask the Expert
October 21st, 2013
Ask the Expert
January 17th, 2012
Webcasts
October 11th, 2009
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
August 1st, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
August 15th, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
August 29th, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5
October 10th, 2011
Ask the Expert
  • 1
  • 2
  • 3
  • 4
  • 5

Actions

Login or Register to take actions
 

Featured Content

Popular Discussions

Popular Documents

Rank Username Points
1
Jon Marshall
16,887
2
Reza Sharifi
9,389
3
Giuseppe Larosa
8,202
4
Leo Laohoo
7,759
5
Peter Paluch
7,654
Rank Username Points
Jon Marshall
489
Joseph W. Doherty
131
Leo Laohoo
113
Reza Sharifi
95
CHARLES HILL
74