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,Q: How to route from Workstation(10.34.50.1)  to ISP Router and to outside interface of ISP??SAPLE: My ISP has given me the public ip to configu...
4 hours 30 min ago
Good day! Have a* 1 26 WS-C2960-24TT-L 12.2(58)SE2 C2960-LANBASEK9-Minterface FastEthernet0/11description -ND to Netgear flor 1 ---switchport trunk...
5 hours 44 min ago
hi all, if mixed technology is running like DMVPN over MPLS, and multiple branches are connected to each other, assume that MTU bottleneck is 1300...
6 hours 35 min ago
Hello Cisco,hopefully someone with more expertise with the Cisco 891-W router can help me figure out my configuration issues?  Right now I have the...
6 hours 45 min ago
Hi guys, Not sure where to start off on this as my only knowledge is that, router (DTE) will connect to Modem (DCE) (CSU/DSU) before going to WAN.T...
18 hours 14 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 How to control multicast within one same Lan ?
Last Reply 29 min 24 sec ago.
18 0 0.0 4 showipinterface
discussion NAT + VPN help needed
Last Reply 31 min 14 sec ago.
34 0 0.0 6 nocsertech
discussion 2 Router on 1 switch with Different network?
Last Reply 2 hours 46 min ago.
0 0 0.0 0 arvin_robel1
discussion Question to OSPF
Last Reply 3 hours 27 min ago.
12 0 5 2 Joseph W. Doherty
discussion Any kind of license requirement for deploying VSS
Last Reply 3 hours 48 min ago.
1 0 0.0 1 Madhukrishnan G...
discussion Level 15 console login with tacacs server on Cisco 2960
Last Reply 4 hours 26 min ago.
2 0 0.0 0 nmdmoreira
discussion Cisco 891-W Wireless Issues
Last Reply 4 hours 26 min ago.
1 0 0.0 0 De Van Do
discussion VS-S720-10G-3C Line Card compatibility
Last Reply 4 hours 27 min ago.
17 0 0.0 2 alireza-nouri
discussion Catalyst 2960 mac filtering
Last Reply 5 hours 44 min ago.
0 0 0.0 0 lacostewin
discussion Route outside Error Details inside
Last Reply 5 hours 44 min ago.
0 0 0.0 0 arvin_robel1
discussion Some of POE ports not working in 3850F-S 48 port switch
Last Reply 6 hours 3 min ago.
16 0 0.0 4 SHABEEB KUNHIPOCKER
discussion PMTUD best practice
Last Reply 6 hours 35 min ago.
0 0 0.0 0 mohammed hashim
discussion Verify NTP master config
Last Reply 7 hours 5 min ago.
6 0 0.0 1 Krishnendu AR
discussion IOS Router NAT with ECMP Inside interfaces
Last Reply 10 hours 9 min ago.
3 0 0.0 5 Reza Sharifi
discussion Template(best practice) for Switch ports
Last Reply 11 hours 46 min ago.
7863 1 5 8 pathak_mrinal
discussion 2960S - Password required, but none set
Last Reply 13 hours 30 min ago.
52290 1 6.66667 16 craig.wells
discussion VLAN Routing Through Cisco ASA
Last Reply 13 hours 53 min ago.
3 0 0.0 1 jeremyNLSO
discussion Failover routing possibilities?
Last Reply 16 hours 25 min ago.
24 0 0.0 2 Robert Falconer
discussion New 2911 config can't seem to get it right
Last Reply 16 hours 38 min ago.
11 0 0.0 4 Andre Neethling
discussion Using ACL to block access
Last Reply 18 hours 13 min ago.
10 0 0.0 1 chlupmichal
discussion configuring serial ports , DTE DCE, CSU/DSU and clocking.
Last Reply 18 hours 14 min ago.
0 0 0.0 0 szejiekoh
discussion MAC address flapping in and out of MAC table on 3750X stack
Last Reply 20 hours 56 min ago.
23 0 0.0 6 Leo Laohoo
discussion Inter vlan routing with L3 switch & Seperate windows DHCP server to give Ip?
Last Reply 21 hours 38 min ago.
12 0 0.0 2 vasanth77
discussion Small Business Cisco switch sr2024c 24 port
Last Reply 21 hours 39 min ago.
0 0 0.0 0 jeff-adair
discussion VOIP QoS setup assistance
Last Reply 21 hours 50 min ago.
0 0 0.0 0 jessica cohen
Filter Results
Subject Views Rating Comments Author
Using 3850 Embedded Wireshark (Wired)
Last Reply 2 days 22 hours ago.
35675
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 3 days 6 hours ago.
3621
0.0
1 TCC_2
Understanding SPAN,RSPAN,and ERSPAN
Last Reply 3 days 20 hours ago.
33752
4.7
6
Temperature alarms on WS-X6904-40G
Last Reply 1 week 2 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 2 days ago.
2798
0.0
1 TCC_2
Nexus - vPC Recommendations
Last Reply 1 week 4 days ago.
18490
5.0
3 pnagpal
Increased Total output drops/OutDiscards by QoS for Desktop Series Switches Products
Last Reply 2 weeks 4 days 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 3 weeks 3 days ago.
1412
0.0
0 TCC_2
X2-10GB-LRM vs X2-10GB-SR compatability
Last Reply 3 weeks 3 days ago.
1389
0.0
9 yogesh rajguru
Fortify Your LAN with Cisco Catalyst Switching - FAQ from live webcast
Last Reply 3 weeks 4 days ago.
138
5.0
0 Anim Saxena
QoS marking based on the “trust dscp” IOS CLI command
Last Reply 3 weeks 5 days ago.
23
0.0
0 ben.epskamp
Catalyst 6800 VSS Quad-Sup SSO and Instant Access Overview - FAQ from live webcast
Last Reply 4 weeks 1 day ago.
4754
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 6 days ago.
7114
0.0
1 TCC_2
SNMP Engine over 80% CPU 100%!!! ?
Last Reply 1 month 1 week ago.
4249
0.0
3 vita_user
CAM (Content Addressable Memory) VS TCAM (Ternary Content Addressable Memory)
Last Reply 1 month 1 week ago.
44149
4.5
6 Thamaraiselvam Santhanam
3850: Understanding interface configuration on NM modules
Last Reply 1 month 1 week ago.
16335
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.
2733
5.0
4 martinez-adrian
Single-sided vs double-sided vpc
Last Reply 1 month 3 weeks ago.
9001
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.
3743
0.0
3 pnagpal
Cheat-sheet for Catalyst 6500 with Sup 720
Last Reply 1 month 3 weeks ago.
7067
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.
101553
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 3 weeks ago.
17702
4.6
12 jakula
blog License Activation on 4500
Last Reply 6 months 1 week ago.
194
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 6 months 2 weeks ago.
7144
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 9 months 1 week ago.
2265
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 9 months 1 week ago.
15985
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 10 months 3 days ago.
40041
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 11 months 1 week ago.
5971
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 3 weeks ago.
123
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 12 months 1 day 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 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 3 weeks ago.
24540
5.0
0 Shashank Singh
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 4 weeks 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.
274
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 1 month ago.
5383
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 4 months ago.
1620
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.
15683
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 5 months ago.
4234
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 6 months ago.
5821
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 9 months ago.
10440
5.0
7 pnagpal
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