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,I need an information, I have a catalyst 6509-E with WS-SUP720-3B ( with IOS 12.2(18)SXE3 that I want upgrade to 12.2(33)SXI13 ) and WS-X6708-10...
9 min 26 sec ago
Hello, I have just upgraded two routers 3825 from Version 12.4(9)T2 to 12.4(24)T8 (Advanced Enterprise). Things seem to be running smoothly after u...
9 min 39 sec ago
Hi everybody!Thank you for an awesome resource :)I'm wondering, will the built in switch in a cisco IP phone insert option 82 like a normal switch...
34 min 5 sec ago
Hi all,On interfaces with ip summary-address set; RIP1) can we use ip summary-address for RIPv1 ? or v2 or both2) when we issue ip summary-address,...
1 hour 5 min ago
Hello, I have router 7609, and on my interface Gi1/10 there is 12 input errors and no CRCThe configuration on both side has been set default (full-...
1 hour 28 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6735 569 6 1 0
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Subject Views Votes Rating Replies Last replied by
discussion PBR to change default GW
Last Reply 1 min 41 sec ago.
0 0 0.0 1 Bilal Nawaz
discussion 3750 Stack
Last Reply 6 min 56 sec ago.
0 0 0.0 1 markmalone2008
discussion X2-10GB-T Minimum Software Release Required ERROR
Last Reply 9 min 26 sec ago.
0 0 0.0 0 peppolon83
discussion 3825 issues after IOS upgrade (cpu, netflow)
Last Reply 9 min 39 sec ago.
0 0 0.0 0 Nikolaos Milas
discussion Syslog server doesn't receive messages from the devices.
Last Reply 14 min 24 sec ago.
0 0 4.33333 5 vivek srivastava
discussion VLAN Configure
Last Reply 30 min 22 sec ago.
0 0 0.0 4 devils_advocate
discussion DHCP Option 82
Last Reply 34 min 5 sec ago.
0 0 0.0 0 kim@ddos.dk
discussion HOW DISTRIBUTE THE TRAFFIC THROUGH MPLS DOMAIN
Last Reply 48 min 2 sec ago.
0 1 0.0 9 alhanafe11
discussion ip summary-route (in RIP and EIGRP)
Last Reply 1 hour 5 min ago.
0 0 0.0 0 KOH SZE JIE
discussion Input error
Last Reply 1 hour 28 min ago.
0 0 0.0 0 marvensianipar
discussion Applying QoS policy on a subinterface
Last Reply 2 hours 1 min ago.
0 0 0.0 0 Wassim Aouadi
discussion DMartin09
Last Reply 2 hours 9 min ago.
1084 0 0.0 2 atcapaev
discussion HIGH PING LATENCY TO VLAN GATEWAYS
Last Reply 2 hours 21 min ago.
0 0 5 9 nizarkotakkal
discussion Can NOT upgrade IOS in C6880-X-LE
Last Reply 2 hours 22 min ago.
61 0 5 7 jcockburn
discussion Cat 6880X VSS and Instant Access Upgrade
Last Reply 2 hours 27 min ago.
5 1 5 3 jcockburn
discussion Static route setup help
Last Reply 2 hours 28 min ago.
0 0 0.0 4 Seb Rupik
discussion Vlan is flapping in L2 switch
Last Reply 2 hours 30 min ago.
0 0 5 5 Bilal Nawaz
discussion Cisco Switch
Last Reply 2 hours 31 min ago.
0 0 0.0 2 devils_advocate
discussion Input Power requriement for a Cisco 4507R+E switch.
Last Reply 1 day 1 hour ago.
0 1 0.0 0 network_geek1979
discussion Cisco Instant Access with 6880X Switch
Last Reply 2 hours 39 min ago.
0 0 0.0 2 jcockburn
discussion RV320 VLAN
Last Reply 2 hours 53 min ago.
0 0 0.0 9 markmalone2008
discussion Catalyst 3750 High CPU ARP INPUT
Last Reply 3 hours 1 min ago.
0 0 0.0 2 Nicolas Maton
discussion Consumer "WAN" port and what is really happening
Last Reply 3 hours 25 min ago.
0 0 5 2 DrisnilGardae
discussion How to Abort Traceroute Execution?
Last Reply 3 hours 44 min ago.
41287 1 5 14 johnbehring
discussion loopguard, bpdu guard for RSTP
Last Reply 3 hours 54 min ago.
0 0 5 2 adimnewtemp
Filter Results
Subject Views Rating Comments Author
LICENSING on 2900/3500/3700
Last Reply 1 day 1 hour ago.
17396
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 1 week 5 days ago.
0
0.0
4 npsangvt1
Egress QOS
Last Reply 1 week 3 days ago.
50321
5.0
11 somgupta
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 1 week 4 days ago.
0
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 4 years 3 months ago.
42740
5.0
2 James D Hensley
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 1 week 5 days ago.
104405
4.7
50 ashirkar
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 2 weeks 1 day ago.
286377
5.0
37 plumbis
The "%C4K_SWITCHMANAGER-4-S2WERRORREPORT" error message appears in the logs of a Cisco Catalyst 4500 Switch, and affects the functionality of PoE line cards
Last Reply 2 weeks 5 days ago.
7832
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 3 weeks 2 days ago.
1972
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 5 years 11 months ago.
4322
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 5 years 11 months ago.
624
0.0
0 TCC_2
How to configure a Flex Link for link-level redundancy in Cat switches that run IOS
Last Reply 5 years 11 months ago.
11294
0.0
0 TCC_2
%SYS-3-SYS_LCPERR3:Module X: Fatal exception occurred Cat 6k, WS-X6348-RJ45 module reset
Last Reply 5 years 11 months ago.
383
0.0
0 TCC_2
How to use Time-Domain Reflectometer (TDR)
Last Reply 4 weeks 4 hours ago.
67347
5.0
68 Leo Laohoo
Retrieving Core files from Cisco Nexus switching platforms
Last Reply 2 years 11 months ago.
13282
5.0
1 Yogesh Ramdoss
Using 3850 Embedded Wireshark (Wired)
Last Reply 1 month 4 days ago.
35732
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 1 month 5 days ago.
3625
0.0
1 TCC_2
Understanding SPAN,RSPAN,and ERSPAN
Last Reply 1 month 5 days ago.
34075
4.7
6 ashirkar
Temperature alarms on WS-X6904-40G
Last Reply 1 month 1 week ago.
10
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 month 1 week ago.
2811
0.0
1 TCC_2
Nexus - vPC Recommendations
Last Reply 1 month 1 week ago.
18575
5.0
3 pnagpal
Increased Total output drops/OutDiscards by QoS for Desktop Series Switches Products
Last Reply 1 month 2 weeks 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 5 years 11 months ago.
1412
0.0
0 TCC_2
X2-10GB-LRM vs X2-10GB-SR compatability
Last Reply 1 month 3 weeks ago.
1405
0.0
9 yogesh rajguru
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 4 months 5 days ago.
17786
4.6
12 jakula
blog License Activation on 4500
Last Reply 7 months 1 week ago.
201
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 7 months 2 weeks ago.
7154
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 10 months 2 weeks ago.
2274
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 10 months 2 weeks ago.
16081
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 11 months 5 days ago.
40336
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 1 year 1 week ago.
5999
5.0
7 Aninda Chatterjee
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 1 year 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 1 year 2 weeks ago.
124
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 4 weeks ago.
107
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 1 month ago.
328
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 3 years 2 weeks ago.
1329
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 2 years 11 months ago.
743
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 2 years 3 months ago.
94
5.0
0 jakula
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 4 years 1 month ago.
24555
5.0
0 Shashank Singh
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 2 years 2 weeks ago.
7925
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 2 months ago.
276
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 2 months ago.
5448
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 5 months ago.
1627
0.0
1 ramugaju
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 9 months ago.
1859
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 10 months ago.
2294
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 1 year 10 months ago.
15705
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 6 months ago.
4236
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 7 months ago.
5822
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 10 months ago.
10458
5.0
7 pnagpal
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