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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hello everyone,I wanted to test using the switchport port-security with mac-address fixed for voip and sticky for the access vlan .for this I creat...
3 min 7 sec ago
I have a 6500 series running as a core device for my network and 4500 series switch running as a access switch. Hardware configuration for both the...
by Sri v
36 min 53 sec ago
Hi all,   Below is my current setup -> All required routes are setup and R1 fe0/0 (3.1) and R10 fe0/0 (5.2) can both ping to 1 another. Whil...
1 hour 45 min ago
Hi All,i have two chassis 6509e and two NAM-3 , how can i configure NAM as active standby on VSS? and if there is any easy document to impelement N...
2 hours 45 min ago
Hello,Does the Catalyst 4507R w/ ios version 12.2 SG has a feature to create dhcp relay and a server?I'm trying to put a dhcp relay (ip address hel...
7 hours 8 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 switchport port-security problem
Last Reply 3 min 7 sec ago.
0 0 0.0 0 Tiago Marques
discussion Lab Switch recommendation needed
Last Reply 4 min 1 sec ago.
8 0 0.0 2 sl1210user
discussion RSA - ISE Configuration
Last Reply 9 min 57 sec ago.
4 0 0.0 0 Prasan Venky
discussion Cisco 6500's Upgrades - Question
Last Reply 22 min 53 sec ago.
12 0 0.0 2 abhi110bansal
discussion RSPAN on Cat4500 with Sup2 running CATOS
Last Reply 36 min 53 sec ago.
0 0 0.0 0 Sri v
discussion VS-S720-10G-3C Line Card compatibility
Last Reply 1 hour 17 min ago.
57 0 5 13 alireza-nouri
discussion show arp in router - interface definition
Last Reply 1 hour 35 min ago.
34 0 5 8 szejiekoh
discussion ping no response found - what does it meant?
Last Reply 1 hour 45 min ago.
0 0 0.0 0 szejiekoh
discussion Configure Cisco NAM on VSS
Last Reply 2 hours 45 min ago.
0 0 0.0 0 Steven112
discussion Can only ping one way.
Last Reply 3 hours 48 min ago.
0 0 0.0 1 johnlloyd_13
discussion Lab Switch recommendation needed
Last Reply 3 hours 49 min ago.
8 0 0.0 2 sean_evershed
discussion creating network adapter in windos xp
Last Reply 5 hours 4 min ago.
10 0 0.0 2 Alishah Rasouli
discussion Cisco WS-C4500X-16 10G twinax cable support issue
Last Reply 6 hours 25 min ago.
11 0 5 5 Md. Abdul Mannan
discussion CIsco Catalyst 4507R DHCP relay and server
Last Reply 7 hours 8 min ago.
0 0 0.0 0 wbdumangeng
discussion disconnecting nexus fex's
Last Reply 7 hours 24 min ago.
10 0 4 3 Reza Sharifi
discussion why the command "ip device tracking" can't use in IA 15.2SY0a
Last Reply 8 hours 24 min ago.
0 0 0.0 0 zeng yi
discussion Inter VLAN routing on 3560 switch, and connection to router
Last Reply 9 hours 56 min ago.
0 0 0.0 1 Charles Hill
discussion Changing native vlan on running network
Last Reply 12 hours 22 min ago.
21 0 5 1 Reza Sharifi
discussion How to control multicast within one same Lan ?
Last Reply 15 hours 29 min ago.
46 0 0.0 8 showipinterface
discussion static NAT configured ip address don't get internet access
Last Reply 17 hours 3 min ago.
11 0 0.0 2 govindaghr
discussion Port channel issue
Last Reply 17 hours 8 min ago.
53 0 4 7 Madhukrishnan G...
discussion Cabling Pin questions
Last Reply 17 hours 10 min ago.
6 0 0.0 2 sl1210user
discussion SRE Module Drives
Last Reply 17 hours 51 min ago.
3 0 0.0 2 schaef350
discussion how-do-i-configure-guest-wifi-access-using-2504-wlc-fortigate-utm-l3-device
Last Reply 19 hours 24 min ago.
0 0 0.0 0 vashistsonu
discussion Upgrading IOS on 4500x Switches
Last Reply 19 hours 38 min ago.
11870 0 0.0 15 Marvin Rhoads
Filter Results
Subject Views Rating Comments Author
Using 3850 Embedded Wireshark (Wired)
Last Reply 4 days 15 hours ago.
35711
5.0
2 Colby Beam
The "%C6KENV-SP-4-MINORTEMPALARM:" error message displays in Catalyst 6500 series switches with Sup720 that runs Cisco IOS system software
Last Reply 4 days 23 hours ago.
3623
0.0
1 TCC_2
Understanding SPAN,RSPAN,and ERSPAN
Last Reply 5 days 13 hours ago.
33926
4.7
6
Temperature alarms on WS-X6904-40G
Last Reply 1 week 3 days ago.
8
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 1 week 4 days ago.
2803
0.0
1 TCC_2
Nexus - vPC Recommendations
Last Reply 1 week 5 days ago.
18533
5.0
3 pnagpal
Increased Total output drops/OutDiscards by QoS for Desktop Series Switches Products
Last Reply 2 weeks 6 days ago.
16
0.0
0 Csc TsWebDocs
Telnet session to FWSM module disconnects due to MTU size issues in 6500 or 7600 switches
Last Reply 3 weeks 5 days ago.
1412
0.0
0 TCC_2
X2-10GB-LRM vs X2-10GB-SR compatability
Last Reply 3 weeks 5 days ago.
1399
0.0
9 yogesh rajguru
Fortify Your LAN with Cisco Catalyst Switching - FAQ from live webcast
Last Reply 3 weeks 5 days ago.
139
5.0
0 Anim Saxena
QoS marking based on the “trust dscp” IOS CLI command
Last Reply 3 weeks 6 days ago.
24
0.0
0 ben.epskamp
Catalyst 6800 VSS Quad-Sup SSO and Instant Access Overview - FAQ from live webcast
Last Reply 1 month 1 day ago.
4784
5.0
2
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 week ago.
7119
0.0
1 TCC_2
SNMP Engine over 80% CPU 100%!!! ?
Last Reply 1 month 1 week ago.
4256
0.0
3 vita_user
CAM (Content Addressable Memory) VS TCAM (Ternary Content Addressable Memory)
Last Reply 1 month 1 week ago.
44267
4.5
6 Thamaraiselvam Santhanam
3850: Understanding interface configuration on NM modules
Last Reply 1 month 1 week ago.
16430
5.0
8 Richard Primm
Password Recovery on Cisco Catalyst 3850
Last Reply 1 month 1 week ago.
1938
0.0
2 Collin Clark
Cisco 2911 Stuck in ROMMON After CF Format
Last Reply 1 month 1 week ago.
124
0.0
2 Ty Gadberry
Route to Host Stuck on Switch
Last Reply 1 month 2 weeks ago.
2737
5.0
4 martinez-adrian
Single-sided vs double-sided vpc
Last Reply 1 month 3 weeks ago.
9013
3.7
15 pnagpal
EEM Script for collecting data during Intermittent High CPU issue
Last Reply 1 month 3 weeks ago.
6981
0.0
3 pnagpal
Troubleshooting Nexus 7000 - Useful commands
Last Reply 1 month 3 weeks ago.
3744
0.0
3 pnagpal
Cheat-sheet for Catalyst 6500 with Sup 720
Last Reply 1 month 3 weeks ago.
7069
0.0
2 pnagpal
Deep dive into EIGRP Summarization
Last Reply 1 month 3 weeks ago.
21
0.0
0 pnagpal
Routing Protocol Selection Guide - IGRP, EIGRP, OSPF, IS-IS, BGP
Last Reply 1 month 3 weeks ago.
102009
4.0
1 Shaun Hummel
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 2 months 4 weeks ago.
17738
4.6
12 jakula
blog License Activation on 4500
Last Reply 6 months 1 week ago.
198
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 6 months 2 weeks ago.
7146
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 9 months 2 weeks ago.
2270
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 9 months 2 weeks ago.
16023
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 10 months 4 days ago.
40156
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 11 months 2 weeks ago.
5983
5.0
7 Aninda Chatterjee
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 11 months 3 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 3 weeks ago.
123
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 12 months 3 days ago.
107
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 1 week ago.
328
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 3 weeks ago.
1329
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 3 weeks ago.
743
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 3 weeks ago.
92
5.0
0 jakula
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 1 year 3 weeks ago.
24555
5.0
0 Shashank Singh
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 1 month ago.
7922
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 1 month ago.
275
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 1 month ago.
5408
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 4 months ago.
1623
0.0
1 ramugaju
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 8 months ago.
1848
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 9 months ago.
2291
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 1 year 9 months ago.
15691
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 5 months ago.
4235
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 6 months ago.
5822
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 9 months ago.
10446
5.0
7 pnagpal
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