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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HOW TO BUILD VLAN in L2 switch SM300 with firewall routing.  Query: In our infrastructure we have two network zones. 1st one is local network (back...
59 min 35 sec ago
I lit the switch like the procedure  state. However I  have not  any address delivered by the DHCP, it not exist on this version of button Reset an...
7 hours 29 min ago
Hello,I have run into an issue with a Nexus 5000. When trying to upgrade to the newest NX-OS (upgrading the system and kickstarters from 4.2.1.N1.1...
1 day 1 hour ago
Hi All, Acc. to attached scenario.Can i make VFC between two Nexus switches. As i don't want another seperate dedicated link for storage traffic. I...
1 day 1 hour ago
Hi All,Why VE ports not supported over VPC in Mutihop FCoE design? 
1 day 2 hours ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6739 569 6 1 0
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discussion High convergence time rstp
Last Reply 25 sec ago.
0 0 0.0 9 Jon Marshall
discussion netflow vs IP accounting !?
Last Reply 9 min 30 sec ago.
0 0 0.0 1 Cisco Freak
discussion C2960-8TC-S
Last Reply 11 min 16 sec ago.
0 0 0.0 1 Joseph W. Doherty
discussion how to configure logs to be sent for TFTP server !?
Last Reply 18 min 31 sec ago.
0 0 0.0 4 mohammed hashim
discussion Can't connect to Switch
Last Reply 19 min 54 sec ago.
0 0 0.0 1 Cisco Freak
discussion Create VLan in local infrastructure using Firewall routing
Last Reply 59 min 35 sec ago.
0 0 0.0 0 ashishd-1983
discussion local policy route-map for policy route
Last Reply 1 hour 9 min ago.
56 0 0.0 16 Jon Marshall
discussion 2 locations, 2 core switch stacks, fibre in between, equal cost load balancing between?
Last Reply 1 hour 21 min ago.
0 0 5 7 Jon Marshall
discussion Cisco 4500 and Poe
Last Reply 2 hours 7 min ago.
19 0 0.0 5 Reza Sharifi
discussion Nexus basics
Last Reply 2 hours 46 min ago.
28 0 0.0 3 Moin Ilyas
discussion Cisco OOB Management setup
Last Reply 2 hours 48 min ago.
7 0 0.0 1 Jon Marshall
discussion 3750-X LAN Base Image
Last Reply 4 hours 4 min ago.
30 0 5 4 rays
discussion JumboFrames on cisco3750g for iSCSI traffic
Last Reply 4 hours 12 min ago.
0 0 0.0 4 e2andreas
discussion any ideas when the c680032p10g will be available ?
Last Reply 4 hours 12 min ago.
9 0 0.0 2 Nick Cutting
discussion What image can i upgrade to on a WS-C3560-48PS-S switch?
Last Reply 4 hours 58 min ago.
28 0 0.0 9 Joseph W. Doherty
discussion OSPF configuration
Last Reply 5 hours 47 min ago.
0 0 0.0 3 paul driver
discussion Cisco 3750-x configuration with Windows DHCP
Last Reply 6 hours 22 min ago.
0 0 0.0 5 paul driver
discussion Problems with routing between VLAN's using a Catalyst 2960-X and RV325
Last Reply 7 hours 11 min ago.
55 0 5 7 paul driver
discussion how to reach a switch Express 500 without the control panel poster
Last Reply 7 hours 29 min ago.
0 0 0.0 0 leea420001
discussion FCOE over VPC
Last Reply 1 day 1 hour ago.
2 0 0.0 0 garg.rishav@gma...
discussion NTP Design Questions
Last Reply 12 hours 33 min ago.
14 0 0.0 2 Reza Sharifi
discussion Nexus 5548UP for SAN Switch
Last Reply 12 hours 49 min ago.
33 0 0.0 7 Reza Sharifi
discussion 6880X VSS VSL Link down
Last Reply 13 hours 16 min ago.
11 0 0.0 2 Reza Sharifi
discussion 3825 router Power issue
Last Reply 14 hours 5 min ago.
349 1 0.0 5 mendiratta_vimal
discussion Network isolation
Last Reply 15 hours 51 min ago.
86 0 5 18 Jon Marshall
Filter Results
Subject Views Rating Comments Author
Understanding MSFC, PFC and DFC roles in Catalyst 6500 Series Switch
Last Reply 1 day 14 hours ago.
39784
5.0
12 SunilKhanna
CAM (Content Addressable Memory) VS TCAM (Ternary Content Addressable Memory)
Last Reply 5 days 14 hours ago.
53475
4.6
5 Thamaraiselvam Santhanam
Redundant-power-supply support on the Cisco Catalyst Express 500 Series switches
Last Reply 5 years 8 months ago.
390
0.0
0 TCC_2
Routing Protocol Selection Guide - IGRP, EIGRP, OSPF, IS-IS, BGP
Last Reply 1 year 3 weeks ago.
92394
4.0
1 Shaun Hummel
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 2 weeks 6 days ago.
95750
4.7
47 ashirkar
example of Embedded Event Manager (EEM) on my 881W - to shut down a interface at 1am
Last Reply 3 weeks 15 hours ago.
186
4.0
2 dshornstein
OSPF and IS-IS Differences
Last Reply 3 weeks 21 hours ago.
3803
5.0
1 inderdeeps
Deep dive into EIGRP Summarization
Last Reply 3 years 7 months ago.
13
0.0
0 pnagpal
Cheat-sheet for Catalyst 6500 with Sup 720
Last Reply 3 years 4 months ago.
6975
0.0
2 pnagpal
Troubleshooting Nexus 7000 - Useful commands
Last Reply 3 years 2 months ago.
3626
0.0
3 pnagpal
Switch Fabric- Troubleshooting tips
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18283
5.0
2 pnagpal
EEM Script for collecting data during Intermittent High CPU issue
Last Reply 2 years 5 months ago.
6769
0.0
3 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 11 hours ago.
21778
5.0
4 TCC_2
Troubleshooting tips for 3750X Stack power feature
Last Reply 1 month 3 days ago.
13045
4.0
5 pnagpal
ITD: Load Balancing, Traffic Steering & Clustering using Cisco switches
Last Reply 1 month 5 days ago.
55
5.0
0 expertadvisor20151
Configuring Microsoft NLB on Nexus 7000
Last Reply 1 month 5 days ago.
5099
5.0
2 mrabbi
OSPF Design Best Practices
Last Reply 1 month 1 week ago.
34735
0.0
2 pnagpal
Importance of BPDU Guard and BPDU Filter !!
Last Reply 1 month 1 week ago.
78574
4.7
11 ganeshh.iyer
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 1 month 1 week ago.
27159
3.7
3 TCC_2
Nexus - vPC Recommendations
Last Reply 1 month 2 weeks ago.
17379
5.0
2 pnagpal
Known Issues on Cisco 7600 Router ES+ Line Cards
Last Reply 1 month 3 weeks ago.
12424
5.0
6 Aleksandar Vidakovic
3850 switch - IOS XE upgrade Detailed (standalone)
Last Reply 1 month 3 weeks ago.
3375
5.0
4 Furose Khan Mohammed Ali
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 1 month 5 days ago.
21428
4.6
12 jakula
blog License Activation on 4500
Last Reply 4 months 1 week ago.
146
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 4 months 2 weeks ago.
6996
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 7 months 2 weeks ago.
2105
5.0
5 aninchat
blog Booting Cisco Router from a TFTP server
Last Reply 7 months 2 weeks ago.
14475
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 8 months 5 days ago.
36684
5.0
7 aninchat
blog Configuring a frame-relay switch
Last Reply 9 months 2 weeks ago.
5784
5.0
7 aninchat
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 9 months 3 weeks ago.
369
5.0
0 Francine Richards
blog Upcoming Ask the Expert Event with Cisco Designated VIP Marwan Al-shawi May 12-23
Last Reply 9 months 3 weeks ago.
121
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 10 months 4 days ago.
96
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 10 months 2 weeks ago.
296
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 2 years 9 months ago.
1002
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 2 years 8 months ago.
709
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 2 years 3 weeks ago.
77
5.0
0 jakula
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 3 years 10 months ago.
20607
5.0
0 shashasi
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 9 months ago.
7888
5.0
9 rucjain
blog Chalk Talk: The Secret to Successful QoS Deployments: A Well-Defined End-to-End QoS Strate
Last Reply 11 months 1 week ago.
270
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 11 months 2 weeks ago.
4644
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 2 months ago.
1393
0.0
1 ramugaju
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 6 months ago.
1751
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 7 months ago.
2255
4.5
4 InayathUlla Sharieff
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