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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I have a DPC3941T modem/router which is configured and seems to be working correctly.  However, if I connect to the admin interface on the router a...
2 hours 40 min ago
Dear everyone, please help me in this situation.I have sw2960 48 ports. now i have sw 3com 24ports connected with router.i want to add new sw2960 b...
3 hours 23 min ago
Hello, I have read about N2K problem to connect LAN switches because of it has BPDU filter enabled by default. Ok, this is clear. I have tried to c...
3 hours 44 min ago
Hello, I have a question on pseudowire between two locations for disaster recovery.  Location one is HQ, 6509E a L3 switch with separate production...
5 hours 34 min ago
Hi,      I have a vlan xx on a port of CISCO 2960 switch. I have to connect a 3com layer 3 switch through this port. The 3com switch have devices t...
5 hours 40 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 List of all Cisco commands on IOS / IOS-XE / NX-OS
Last Reply 3 min 25 sec ago.
0 0 0 1 mark malone
discussion Router default source interface for own communication
Last Reply 15 min 12 sec ago.
0 0 0 1 mark malone
discussion Creating Ether-channel between Cisco 2960-X Switches
Last Reply 23 min 25 sec ago.
10 0 0 3 mark malone
discussion Native VLAN mismatch between 2960 and 3560 switch
Last Reply 32 min 53 sec ago.
108 0 0 8 sajid_m123
discussion Double NAT help needed
Last Reply 1 hour 15 min ago.
8 0 0 2 eaglesfan73@gma...
discussion 6880-X VSS Pair / How to get the Base Ethernet MAC Address
Last Reply 1 hour 34 min ago.
12 0 5 4 Konrad Defranceschi
discussion Cisco WS 3850 XS-S 1G/10G SFP+ switch can we use 1G SFP Module
Last Reply 2 hours 10 min ago.
27 0 5 4 patel-devang
discussion Route-map on 3560X 12.2(55)SE8 - not able to see route-map even after applying on the interface
Last Reply 2 hours 35 min ago.
10 0 0 2 prashanth.s.kan...
discussion DPC3941 Failure to connect
Last Reply 2 hours 40 min ago.
0 0 0 0 captainkc
discussion Error opening tftp (Timed out)
Last Reply 3 hours 18 min ago.
55522 3 4.8 42 kenobiwan
discussion Config sw2960
Last Reply 3 hours 23 min ago.
0 0 0 0 hongnduvit
discussion Problem with N2K FEX and Switches connection
Last Reply 3 hours 44 min ago.
0 0 0 0 antilope1
discussion PseudoWire Question for Disaster Recovery
Last Reply 5 hours 34 min ago.
0 0 0 0 Mark Lind
discussion Integration of CISCO 2960 switch with 3com layer 3 switch
Last Reply 5 hours 40 min ago.
0 0 0 0 navinmtnl
discussion VPC Layer 2 (core) with VSS Layer 3 (distribution)?
Last Reply 6 hours 36 min ago.
75 0 5 10 mohankumarm
discussion high Rcv-Err in switch
Last Reply 6 hours 36 min ago.
7 0 0 1 ashtonpotterltd
discussion 3850 - after upgrade APs disabled
Last Reply 6 hours 47 min ago.
4 0 0 1 mark malone
discussion How to test local ssh/console credentials when switch is authenticating to RADIUS?
Last Reply 7 hours 14 min ago.
17 0 5 4 rweir0001
discussion Network Infra Consolidation
Last Reply 7 hours 46 min ago.
11 0 0 0 tusharanand1
discussion Shutting Down VLAN1 for Security & switchport trunk native
Last Reply 7 hours 53 min ago.
8821 0 5 10 Peter Paluch
discussion C3KX-NM-10G at 3750x in 1G mode
Last Reply 8 hours 59 min ago.
16 0 0 0 VLISOVSKIY
discussion Stack Two 2960X-PS-L with SFP cable
Last Reply 10 hours 28 min ago.
25 0 0 4 remy.borde
discussion Hulc LED Process
Last Reply 10 hours 39 min ago.
64056 3 5 29 Heba Elsherbiny
discussion Catalyst 2960 not transmitting any data.
Last Reply 11 hours 28 min ago.
18 0 0 9 mark malone
discussion PE-CE Connectivity: Integrated IS-IS
Last Reply 11 hours 47 min ago.
766 0 5 7 Peter Paluch
Filter Results
Subject Views Rating Comments Author
Error Message:%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface <interface> Power Controller reports power Imax error detected
Last Reply 4 days 16 hours ago.
13472
5.0
4 Sivagami Narayanan
Running 40 routers with IOU in 4GB RAM
Last Reply 5 days 13 hours ago.
19
0.0
0 Sudeb Das
"Etherchannel Loadbalancing on Catalyst Switches"
Last Reply 1 week 6 days ago.
20902
5.0
3 Souvik Ghosh
SSH version 2 no IOS cat4000-i5s-mz.122-25.EWA14.bin
Last Reply 2 weeks 3 days ago.
20
0.0
1 Sergio Alvares
Cisco Nexus 7000 / 7700 Line Cards
Last Reply 2 weeks 3 days ago.
54
0.0
0 Shaun Hummel
Egress QOS
Last Reply 4 weeks 2 hours ago.
52970
5.0
13 somgupta
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 1 month 4 days ago.
50296
4.7
51
Cisco 891 fresh configuration/management without console cable
Last Reply 1 month 2 weeks ago.
25
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 1 month 2 weeks ago.
126
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 1 month 2 weeks ago.
39
0.0
0 KHALEELUR RAHMAN.A
unable to ping pc from (vlan-A) to pc on (vlan-B)
Last Reply 1 month 3 weeks ago.
35
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 2 months 1 day ago.
25880
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 2 months 1 day ago.
96602
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 2 months 5 days ago.
4127
0.0
0 TCC_2
3850 Boot Mode
Last Reply 2 months 6 days ago.
1627
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 2 months 1 week ago.
18757
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 2 months 2 weeks ago.
81
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 2 months 2 weeks ago.
51
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 2 months 2 weeks ago.
48126
5.0
2 James D Hensley
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 2 months 3 weeks ago.
292827
5.0
37
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 months 3 weeks ago.
8170
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 3 months 22 hours ago.
3818
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 3 months 1 day ago.
4548
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 3 months 1 day ago.
635
0.0
0 TCC_2
How to configure a Flex Link for link-level redundancy in Cat switches that run IOS
Last Reply 3 months 1 day ago.
11468
0.0
0 TCC_2
Filter Results
Subject Views Rating Comments Author
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 3 weeks 4 days ago.
25748
5.0
1 Shashank Singh
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 6 months 17 hours ago.
19842
4.6
12 jakula
blog License Activation on 4500
Last Reply 9 months 2 weeks ago.
331
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 9 months 2 weeks ago.
7306
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 1 year 1 week ago.
2444
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 1 year 1 week ago.
18029
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 1 year 1 month ago.
47035
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 1 year 2 months ago.
6466
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 months ago.
394
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 months ago.
9
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 2 months ago.
119
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 3 months ago.
377
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 3 months ago.
1407
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 3 months ago.
756
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 3 months ago.
115
5.0
0 jakula
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 4 months ago.
8210
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 4 months ago.
289
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 4 months ago.
7046
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 7 months ago.
514
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 11 months ago.
2006
4.7
1 Anand G
blog Parity Error.
Last Reply 2 years 3 days ago.
2363
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 2 years 3 weeks ago.
16580
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 8 months ago.
4373
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 9 months ago.
5906
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 3 years 2 weeks ago.
11072
5.0
7 pnagpal
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