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,My client has a Sonic Wall Firewall and I need to replace it with an ASA with Failover design.Kicker:The 3750x is doing the inter-VLAN routi...
27 min 19 sec ago
Hi,I have a client which has two ASA 5545X and two Nexus 3548, holding his LAN network.Currently the ASA holds all the L3 sub-interfaces and does a...
2 hours 21 min ago
First of all, this is my first post in the community so forgive me if I fail to explain what my problem really is or how I actually want to solve i...
8 hours 15 min ago
Hello, Recently I bought Small business switch SLM2024PT-AU and when I connect all the ports to the switch and the devices like my laptop , printer...
8 hours 33 min ago
Hi,Please see the attached file to understatnd the scenario. Currently We are running Setup A and then suddenly Link From Office 2 goes down.So wha...
1 day 55 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 WCCP command not accepted on 3750 switch
Last Reply 4 min 21 sec ago.
15 0 0 4 fredmarka
discussion replacement for cisco 2621 router
Last Reply 19 min 12 sec ago.
31 1 0 7 Karsten Iwen
discussion How to configure L2 logical connections between Cisco 3750x and ASA 5525x
Last Reply 27 min 19 sec ago.
0 0 0 0 Reynaldo Jr Bilan
discussion Trunk and MSTP config
Last Reply 50 min 10 sec ago.
11 0 0 1 Neville Dsouza
discussion All EIGRP Network, swapping ASA for Checkpoint
Last Reply 1 hour 40 min ago.
0 0 0 1 Peter Paluch
discussion ASA with Nexus topology
Last Reply 2 hours 21 min ago.
0 0 0 0 EdenVerjolas
discussion CIWRP500-Z-K9 'striped' encryption - what does that mean?
Last Reply 2 hours 27 min ago.
3 0 0 1 mark malone
discussion Telnet problem to access switch
Last Reply 2 hours 38 min ago.
44 0 5 9 mark malone
discussion OSPF cost per neighbor in a normal "broadcast" LAN
Last Reply 2 hours 58 min ago.
1192 0 0 6 Rajshekhar Nayak
discussion unable to ping laptop from router
Last Reply 3 hours 34 min ago.
2 0 0 1 Karsten Iwen
discussion upgrade path for Cisco 881 router firmware ?
Last Reply 4 hours 19 min ago.
0 0 0 1 Leo Laohoo
discussion Cisco 2951 ISR Router boot issue
Last Reply 4 hours 55 min ago.
25 0 0 8 hamid khan
discussion Help with segregating network
Last Reply 5 hours 59 min ago.
58 0 0 5 carlo@cirexx.com
discussion Inter VLAN access for ESXi host in Workstation using Router on a stick
Last Reply 8 hours 6 min ago.
0 0 0 0 Victor S
discussion can HRSP / VRRP be use in the such setup ?
Last Reply 8 hours 28 min ago.
52 0 5 7 Jon Marshall
discussion SBS SLM2024PT-AU switch port issues
Last Reply 8 hours 33 min ago.
0 0 0 0 Sathya Narayanan
discussion HWIC cable pin assign
Last Reply 8 hours 47 min ago.
0 0 5 2 Kunal Narula
discussion Rackmount kit for C3750G-24WS-S25
Last Reply 9 hours 33 min ago.
21 0 0 4 jsachnet1
discussion SIP Priority / VOIP QoS issues
Last Reply 9 hours 40 min ago.
16 0 0 5 Joseph W. Doherty
discussion Access/Wiring closet switch selection
Last Reply 9 hours 48 min ago.
40 0 0 9 Joseph W. Doherty
discussion Ports Getting on error disable reason unkown
Last Reply 9 hours 51 min ago.
49 0 0 5 Leo Laohoo
discussion Routing problem 819 4G LTE
Last Reply 10 hours 4 min ago.
19 0 5 6 alfred.vesely
discussion UC540W-FXO-K9
Last Reply 10 hours 54 min ago.
21 0 5 4 acampbell
discussion Loss of a single LACP link results in LACP group traffic failing
Last Reply 11 hours 30 min ago.
21 0 0 1 willwetherman
discussion VTP Pruning is enabled and working, but traffic is still allowed on the trunk.
Last Reply 14 hours 38 min ago.
41 0 0 2 Cauli Medeiros
Filter Results
Subject Views Rating Comments Author
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 16 hours 55 min ago.
295178
5.0
38
The "%SPANTREE-7-BLOCK_PORT_TYPE : Blocking [chars] on [chars]. Inconsistent port type" message is logged on Cisco Catalyst switches
Last Reply 2 days 23 hours ago.
18681
0.0
2 TCC_2
%C4K_SUPERVISOR-2-SOFTERROR / %C4K_SUPERVISOR-2-FPGASOFTERROR
Last Reply 5 days 20 hours ago.
4
0.0
0 InayathUlla Sharieff
Egress QOS
Last Reply 5 days 21 hours ago.
53764
5.0
14 somgupta
CAM (Content Addressable Memory) VS TCAM (Ternary Content Addressable Memory)
Last Reply 1 week 1 day ago.
51946
4.6
7 Thamaraiselvam Santhanam
How to Form a Catalyst 3850 Data-Stack and Power-Stack
Last Reply 1 week 5 days ago.
110
0.0
0 Luis Villanueva Brito
Properly Installing Cisco USB Console Driver
Last Reply 2 weeks 21 hours ago.
118
0.0
1 lsgabrillo
How to define the VLANs allowed on a trunk link
Last Reply 2 weeks 2 days ago.
188483
5.0
3 TCC_2
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 3 weeks 4 days ago.
125504
4.7
53
3850 switch - IOS XE upgrade Detailed (standalone)
Last Reply 3 weeks 4 days ago.
6130
5.0
5 Furose Khan Mohammed Ali
Error Message:%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface <interface> Power Controller reports power Imax error detected
Last Reply 1 month 4 days ago.
13780
5.0
4 Sivagami Narayanan
Running 40 routers with IOU in 4GB RAM
Last Reply 1 month 5 days ago.
61
0.0
0 Sudeb Das
"Etherchannel Loadbalancing on Catalyst Switches"
Last Reply 1 month 1 week ago.
21617
5.0
3 Souvik Ghosh
SSH version 2 no IOS cat4000-i5s-mz.122-25.EWA14.bin
Last Reply 1 month 2 weeks ago.
24
0.0
1 Sergio Alvares
Cisco Nexus 7000 / 7700 Line Cards
Last Reply 1 month 2 weeks ago.
156
0.0
0 Shaun Hummel
Cisco 891 fresh configuration/management without console cable
Last Reply 2 months 2 weeks ago.
35
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 2 months 2 weeks ago.
148
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 2 months 2 weeks ago.
45
0.0
0 KHALEELUR RAHMAN.A
unable to ping pc from (vlan-A) to pc on (vlan-B)
Last Reply 2 months 3 weeks ago.
45
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 3 months 1 day ago.
26837
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 3 months 1 day ago.
101082
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 3 months 5 days ago.
4231
0.0
0 TCC_2
3850 Boot Mode
Last Reply 3 months 6 days ago.
1810
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 3 months 1 week ago.
19251
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 3 months 2 weeks ago.
87
0.0
4 npsangvt1
Filter Results
Subject Views Rating Comments Author
blog Loading an IOS on a switch via Xmodem
Last Reply 1 day 13 hours ago.
50184
5.0
8 Aninda Chatterjee
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 2 months 1 day ago.
26212
5.0
1 Shashank Singh
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 7 months 6 days ago.
20838
4.6
12 jakula
blog License Activation on 4500
Last Reply 10 months 2 weeks ago.
421
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 10 months 3 weeks ago.
7386
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 1 year 1 month ago.
2523
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 1 year 1 month ago.
18788
5.0
3 ajaju
blog Configuring a frame-relay switch
Last Reply 1 year 3 months ago.
6704
5.0
7 Aninda Chatterjee
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 1 year 3 months ago.
383
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 3 months ago.
129
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 4 months ago.
123
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 4 months ago.
404
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 4 months ago.
1434
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 1 year 4 months ago.
761
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 4 months ago.
129
5.0
0 jakula
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 5 months ago.
8312
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 5 months ago.
289
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 5 months ago.
7841
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 9 months ago.
514
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 2 years 2 weeks ago.
2070
4.7
1 Anand G
blog Parity Error.
Last Reply 2 years 1 month ago.
2397
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 2 years 1 month ago.
16998
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 9 months ago.
4424
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 10 months ago.
5922
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 3 years 1 month ago.
11401
5.0
7 pnagpal
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