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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Dear All, I have  a scenario where my 2 4500x in VSS are connected via 2 FO  links to a Cat 6500.The 6500 is only one box and it has 2 SUP2T.The co...
20 min 27 sec ago
In my company , we are using 4303 E 3 slot switches. Presently we are using 12 port WS-X4612-SFP-E module for uplink from edge switches.As the edge...
48 min 36 sec ago
Hi,I want to make the L3 remote SPAN to make the PSTN voice logging function.Actually, I have to compare the VLAN 142 and VLAN 212, because I have...
3 hours 32 min ago
Hi,We recently have an incident, Some of our manufacturing tools are using legacy devices and a user connects a new PC to the network, has a softwa...
4 hours 18 min ago
Hello, I have this problem and I did a research with regards to the setup. I'd followed several tuts and suggestion but none of them works. I would...
6 hours 28 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6733 569 6 1 0
Filter Results
Subject Views Votes Rating Replies Last replied by
discussion CRC and Undersize errors
Last Reply 2 min 34 sec ago.
25 0 0.0 3 mark malone
discussion Unable to enable Netflow on Cat 4503-E (Sup7-e)
Last Reply 13 min 21 sec ago.
2088 1 0.0 3 Mohamed Abdel Rahman
discussion voice and data vlan together - need a trunk port / how it works ?
Last Reply 15 min 43 sec ago.
3 0 5 2 KOH SZE JIE
discussion "Received BPDU with inconsistent peer" when adding VLAN
Last Reply 18 min 6 sec ago.
42 0 5 10 mark malone
discussion SVI flapping on MEC configuration
Last Reply 20 min 26 sec ago.
0 0 0.0 0 daniele matta
discussion Netflow on Nexus 56128P
Last Reply 30 min 28 sec ago.
158 1 0.0 1 ftrousse
discussion PBR ACL merge failure
Last Reply 44 min 38 sec ago.
560 0 0.0 3 markos817
discussion WS-C4503-E 3 slot switch SFP module support
Last Reply 48 min 35 sec ago.
0 0 0.0 0 Classicfashion
discussion I Can't write the "ip multicast-routing..." command
Last Reply 1 hour 13 min ago.
30 0 5 6 InayathUlla Sharieff
discussion NAT with VPN ipsec client
Last Reply 1 hour 15 min ago.
9 0 0.0 2 David Babiano R...
discussion C3560G and C2960's intervlan routing issue
Last Reply 1 hour 22 min ago.
31 0 0.0 7 KHALEELUR RAHMAN.A
discussion 887VAW ftp server access
Last Reply 1 hour 30 min ago.
13 0 0.0 2 digbym650
discussion Cisco Storm Control on Catalyst 6500
Last Reply 2 hours 33 min ago.
9 0 0.0 1 InayathUlla Sharieff
discussion Making 3560 switch receive only??
Last Reply 3 hours 32 min ago.
2 0 0.0 0 encapsulation1
discussion vlan can't connect to the internet.
Last Reply 3 hours 32 min ago.
3 0 0.0 0 rkent649649
discussion Remote SPAN on Layer 3
Last Reply 3 hours 32 min ago.
1 0 0.0 0 Chi Fai Leung
discussion Storm-control Value to choose ?
Last Reply 4 hours 18 min ago.
0 0 0.0 0 riyasrasheed
discussion SFP power problem
Last Reply 5 hours 30 min ago.
5 0 5 3 Reza Sharifi
discussion Is it possible to remame a VDC on a Nexus 7000?
Last Reply 6 hours 9 min ago.
3708 2 5 5 InayathUlla Sharieff
discussion Native VLAN mismatch
Last Reply 6 hours 12 min ago.
25 0 5 3 InayathUlla Sharieff
discussion Routing Bit Set on LSA for NX-OS
Last Reply 10 hours 30 min ago.
6 0 0.0 0 Plinio Brandao
discussion Extended access list/route map question
Last Reply 11 hours 14 min ago.
0 0 4.93333 6 vivek srivastava
discussion Routing
Last Reply 11 hours 18 min ago.
0 0 3.5 6 vivek srivastava
discussion Nexus vPC to Arista MLAG
Last Reply 11 hours 19 min ago.
8 0 0.0 2 tporembski
discussion WS-C3850-12S-S with WS-C3650-24TD-S 10Gig Connection
Last Reply 12 hours 59 sec ago.
0 0 4 3 Jasaatum_89
Filter Results
Subject Views Rating Comments Author
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 2 days 34 min ago.
50293
4.7
51 ashirkar
Egress QOS
Last Reply 3 days 18 hours ago.
50321
5.0
12 somgupta
Cisco 891 fresh configuration/management without console cable
Last Reply 2 weeks 7 hours ago.
0
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 2 weeks 11 hours ago.
0
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 2 weeks 17 hours ago.
0
0.0
0 KHALEELUR RAHMAN.A
unable to ping pc from (vlan-A) to pc on (vlan-B)
Last Reply 3 weeks 2 days ago.
0
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 4 weeks 1 day ago.
23162
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 4 weeks 1 day ago.
84068
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 1 month 2 days ago.
3959
0.0
0 TCC_2
3850 Boot Mode
Last Reply 1 month 4 days ago.
1203
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 1 month 6 days ago.
17396
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 1 month 1 week ago.
0
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 1 month 2 weeks ago.
0
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 1 month 2 weeks ago.
42740
5.0
2 James D Hensley
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 1 month 2 weeks 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 1 month 3 weeks ago.
7832
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 1 month 4 weeks ago.
1972
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 1 month 4 weeks ago.
4322
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 1 month 4 weeks 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 1 month 4 weeks 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 1 month 4 weeks ago.
383
0.0
0 TCC_2
How to use Time-Domain Reflectometer (TDR)
Last Reply 2 months 3 days ago.
67347
5.0
68 Leo Laohoo
Retrieving Core files from Cisco Nexus switching platforms
Last Reply 2 months 5 days ago.
13282
5.0
1 Yogesh Ramdoss
Using 3850 Embedded Wireshark (Wired)
Last Reply 2 months 1 week 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 2 months 1 week ago.
3625
0.0
1 TCC_2
Filter Results
Subject Views Rating Comments Author
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 0 sec ago.
24555
5.0
1 Shashank Singh
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 5 months 5 days ago.
17786
4.6
12 jakula
blog License Activation on 4500
Last Reply 8 months 2 weeks ago.
201
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 8 months 3 weeks ago.
7154
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 11 months 2 weeks ago.
2274
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 11 months 2 weeks ago.
16081
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 1 year 5 days ago.
40336
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 1 year 1 month 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 1 month 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 1 month ago.
124
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 2 months ago.
107
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 2 months ago.
328
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 2 months ago.
1329
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 2 months ago.
743
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 2 months ago.
94
5.0
0 jakula
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 3 months 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 3 months ago.
276
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 3 months ago.
5448
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 6 months ago.
1627
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 10 months ago.
1859
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 11 months ago.
2294
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 1 year 12 months ago.
15705
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 7 months ago.
4236
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 8 months ago.
5822
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 11 months ago.
10458
5.0
7 pnagpal
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