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 am having an issue with getting multicast video across subnets. I have vlan 10 (192.168.10.*) with multicast server 192.168.10.11..  I can see th...
22 min 49 sec ago
Hey everyone,I have been looking all over the interent for ansers but still haven't found one, so I decided to jump in and post my problem here. Ho...
24 min 59 sec ago
Hi all,the "Unknown protocol drops" are increasing fast at our WAN Router...This is my setup: 3925 GigabitEthernet0/0/0 <--> 6504VSS Gig1/3/4...
1 hour 30 min ago
Hello Everyone, I am a rookie Engineer and I am trying not to make a mess of anything. Shortly we will be shutting down our NORTH building and we w...
1 hour 41 min ago
what are the lists or types of Cisco core switch configuration files
4 hours 14 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 Setting up Multicast on same VLAN
Last Reply 4 min 32 sec ago.
5 0 0 1 Peter Paluch
discussion Multicast across Subnets
Last Reply 21 min 52 sec ago.
0 0 0 0 Jeff Horton
discussion High CPU in Catalyst 3850 (03.02.03.SE)
Last Reply 24 min 59 sec ago.
0 0 0 0 emfusion1
discussion %OSPF-5-ADJCHG: Process 1800, Nbr 172.20.102.147 on GigabitEthernet0/2.121 from FULL to DOWN, Neighbor Down: Dead timer expired
Last Reply 55 min ago.
11 0 0 3 gerson-soares
discussion ip dhcp snooping client can't get ip dhcp
Last Reply 55 min 5 sec ago.
24 0 0 5 Bekzod Fakhriddinov
discussion Sup 720 vss replacement doubts about VSL links and Preemption
Last Reply 1 hour 5 min ago.
0 0 5 3 Reza Sharifi
discussion Packet marking with DSCP on lan core switch or wan router?
Last Reply 1 hour 10 min ago.
41 0 0 5 Bekzod Fakhriddinov
discussion Replacing master switch on 3750E Stack
Last Reply 1 hour 17 min ago.
13 0 0 5 Joseph W. Doherty
discussion Unknown protocol drops between Router 3925 and routed port (6504)
Last Reply 1 hour 30 min ago.
0 0 0 0 vrnetzealas
discussion Moving buildings and need advice on best practices.
Last Reply 1 hour 41 min ago.
0 0 0 0 velezm111
discussion Need to Configure VSS on Cisco 4503E series Switch
Last Reply 2 hours 46 min ago.
0 0 0 1 Reza Sharifi
discussion Do more number ports in ACL take more TCAM ?
Last Reply 2 hours 46 min ago.
15 0 5 5 Joseph W. Doherty
discussion Catalyst 3750 Access List to prevent IP Stealing
Last Reply 2 hours 55 min ago.
51 0 5 9 smithster5683
discussion Network Management Software
Last Reply 2 hours 56 min ago.
5 0 0 1 Reza Sharifi
discussion LAN_ VTP
Last Reply 3 hours 12 min ago.
9 0 0 3 Joseph W. Doherty
discussion Need help in NATing and Connectivity Issues
Last Reply 3 hours 41 min ago.
0 0 0 1 Yves Alob
discussion Catalist 6500 limit bandwith need !!!
Last Reply 4 hours 11 min ago.
16 0 0 6 Oleg Gnedykh
discussion core switch configuration management
Last Reply 4 hours 14 min ago.
0 0 0 0 alazardesta1
discussion L2TP device was fluctuating
Last Reply 4 hours 47 min ago.
0 0 0 0 saifudheeneroth...
discussion wccp on 6807 switch to work with Websense Content Gateway
Last Reply 5 hours 3 min ago.
5 0 0 1 james951456
discussion Multicast Reflector - performance/quality issue
Last Reply 5 hours 47 min ago.
14 0 5 1 wojciechlubas
discussion QoS - Dropping traffic with BW Available
Last Reply 6 hours 9 min ago.
31 0 4.33333 7 Joseph W. Doherty
discussion About BGP configuration in ASR 1000
Last Reply 6 hours 9 min ago.
9 0 5 2 Peter Paluch
discussion RSPAN cisco + hp procurve 6120xg
Last Reply 6 hours 17 min ago.
6 0 0 2 Peter Paluch
discussion SSL termination and inspection discussion using cisco technology
Last Reply 6 hours 51 min ago.
0 0 0 0 asad ali
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 12 hours 34 min ago.
13430
5.0
4 Sivagami Narayanan
Running 40 routers with IOU in 4GB RAM
Last Reply 1 day 9 hours ago.
0
0.0
0 Sudeb Das
"Etherchannel Loadbalancing on Catalyst Switches"
Last Reply 1 week 2 days ago.
20802
5.0
3 Souvik Ghosh
SSH version 2 no IOS cat4000-i5s-mz.122-25.EWA14.bin
Last Reply 1 week 6 days ago.
17
0.0
1 Sergio Alvares
Cisco Nexus 7000 / 7700 Line Cards
Last Reply 1 week 6 days ago.
42
0.0
0 Shaun Hummel
Egress QOS
Last Reply 3 weeks 2 days ago.
52875
5.0
13 somgupta
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 1 month 2 hours ago.
50296
4.7
51 ashirkar
Cisco 891 fresh configuration/management without console cable
Last Reply 1 month 1 week ago.
24
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 1 month 1 week ago.
121
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 1 month 1 week ago.
38
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.
32
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 1 month 3 weeks ago.
25751
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 1 month 3 weeks ago.
95662
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 2 months 20 hours ago.
4114
0.0
0 TCC_2
3850 Boot Mode
Last Reply 2 months 2 days ago.
1592
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 2 months 4 days ago.
18693
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 2 months 1 week ago.
79
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 2 months 2 weeks ago.
49
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 2 months 2 weeks ago.
47736
5.0
2 James D Hensley
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 2 months 2 weeks ago.
292569
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.
8160
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 2 months 3 weeks ago.
3628
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 2 months 3 weeks ago.
4533
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 2 months 3 weeks ago.
634
0.0
0 TCC_2
How to configure a Flex Link for link-level redundancy in Cat switches that run IOS
Last Reply 2 months 3 weeks ago.
11462
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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