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 all,i'm not a fan of 3650 switch as it's giving me problems.the 3650 can CDP and HTTP to 8831 but CUCM says "not registered."the 8831 works fine...
1 hour 53 min ago
Can anyone provide information around the rumour UCS 6100 FI will stop operating after a set amount of days (I heard 700)?What is the count-down pe...
5 hours 15 sec ago
I have 3 - Cisco 3650's which used to be setup as a stack.  After disconnecting the stack cables and attempting to use each switch as stand alone d...
7 hours 59 min ago
We have a pair of Nexus 5548's. Not everything is dual-homed. For example, only one of them has a 10-gig link to our main office (along with a 100...
8 hours 48 min ago
Is there a web GUI for configuration on the new 4321 router?I looked at CNA here:  http://www.cisco.com/c/en/us/td/docs/net_mgmt/cisco_network_assi...
12 hours 38 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 pinging to remote broadcast address - cant understand the response.
Last Reply 3 min 15 sec ago.
3 0 0.0 1 szejiekoh
discussion NAT + VPN help needed
Last Reply 48 min 57 sec ago.
50 0 5 10 nocsertech
discussion Can only ping one way.
Last Reply 1 hour 30 min ago.
11 0 5 3 johnlloyd_13
discussion Cisco 3650 not working with Cisco 8831 Conference IP phone
Last Reply 1 hour 53 min ago.
0 0 0.0 0 johnlloyd_13
discussion How Do I Upgrade a Cisco Catalyst 2960G using the Image .Tar file after tftp copy to flash
Last Reply 2 hours 18 min ago.
5 0 0.0 2 johnlloyd_13
discussion CIsco Catalyst 4507R DHCP relay and server
Last Reply 2 hours 55 min ago.
11 0 0.0 0 wbdumangeng
discussion UCS FI 6100 "timebomb"?
Last Reply 5 hours 15 sec ago.
0 0 0.0 0 gorton.steve
discussion Inter VLAN routing on 3560 switch, and connection to router
Last Reply 5 hours 25 min ago.
21 0 0.0 3 allen.mike
discussion Cisco 2960-S Switch 10GB port disabled because of non-compliant converter??
Last Reply 6 hours 18 min ago.
18 0 0.0 5 dougstringham
discussion Cisco 3650 RJ-45 Console Port Unavailable
Last Reply 7 hours 24 min ago.
0 0 0.0 2 Leo Laohoo
discussion Cisco 3650 RJ-45 Console Port Unavailable
Last Reply 7 hours 59 min ago.
0 0 0.0 0 nick-tompkins
discussion Nexus 5548UP
Last Reply 8 hours 3 min ago.
1 0 0.0 1 gmagno001
discussion Nexus, configure sync and Interface VLAN
Last Reply 8 hours 48 min ago.
0 0 0.0 0 John Ejaife
discussion cisco show logs - view history logs
Last Reply 8 hours 56 min ago.
8 0 5 4 markmalone2008
discussion New 2911 config can't seem to get it right
Last Reply 10 hours 48 min ago.
17 0 0.0 19 Andre Neethling
discussion 2960-XR no PoE on particular port for IP Camera
Last Reply 10 hours 57 min ago.
3 0 0.0 2 Todd Willoughby
discussion why is the router sending reverse DNS queries ?
Last Reply 11 hours 1 min ago.
4 0 5 7 szejiekoh
discussion %ACLMGR-3-ACLMGR_VERIFY_FAIL: Verify failed: client 40000290, tcam region full
Last Reply 12 hours 39 min ago.
0 0 0.0 0 Andreas Falk
discussion 3560X - Port Channel not load balancing
Last Reply 12 hours 42 min ago.
1 0 0.0 2 Joseph W. Doherty
discussion internet connection is slow connected to cisco 2800
Last Reply 13 hours 50 sec ago.
0 0 0.0 1 markmalone2008
discussion Can someone provide a link to the firmware download for Cat65k 67xx series line cards?
Last Reply 13 hours 23 min ago.
43 0 5 9 Andre Neethling
discussion Cisco SA520 Jumbo Frame Support and/or Alternatives
Last Reply 13 hours 36 min ago.
0 0 0.0 0 IT SecX
discussion switchport port-security problem
Last Reply 14 hours 2 min ago.
15 0 0.0 8 markmalone2008
discussion IP NAT Stateful IOS 15.4 C3945
Last Reply 14 hours 33 min ago.
0 0 0.0 0 Robert Singer
discussion WS-C3650-48PQ Where do I find IP Services software?
Last Reply 15 hours 56 min ago.
2 0 5 2 torleif
Filter Results
Subject Views Rating Comments Author
Retrieving Core files from Cisco Nexus switching platforms
Last Reply 12 min 41 sec ago.
13277
5.0
1 Yogesh Ramdoss
Using 3850 Embedded Wireshark (Wired)
Last Reply 5 days 3 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 5 days 11 hours ago.
3623
0.0
1 TCC_2
Understanding SPAN,RSPAN,and ERSPAN
Last Reply 6 days 1 hour ago.
33926
4.7
6
Temperature alarms on WS-X6904-40G
Last Reply 1 week 4 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 6 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 6 days ago.
139
5.0
0 Anim Saxena
QoS marking based on the “trust dscp” IOS CLI command
Last Reply 4 weeks 10 hours 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 2 days 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 2 weeks 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
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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