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 been reading for a few hours now and am having a difficult time determining what is an appropriate way to protect PIM on a generic user-faci...
6 hours 10 min ago
Hello -  We have a segment of our network which is mostly 3750 Switches ios 12.2.55SE8.  Servers establish a TCP bind with clients across a WAN to...
11 hours 25 min ago
Customer has two buildings close by each other that originally had independent networks with separate subnets.  They later decided they needed to a...
12 hours 18 min ago
Hello, Im having a problem setting EPC3825 to work as wireless repeater in my network. Im using another ECP3825 as DHCP server, but havent yet been...
14 hours 35 min ago
Hi their,greetings.. I have created a route-map and when i applied on the interface it accepted the command. but when i did show run interface i am...
14 hours 57 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 Stack Two 2960X-PS-L with SFP cable
Last Reply 6 min 24 sec ago.
2 0 0 2 remy.borde
discussion regarding errordisabled state of interface due to looping in LAN
Last Reply 24 min 18 sec ago.
1 0 0 2 Peter Paluch
discussion Subinterface for WAN connections - 2 ISPs - Cisco 1941 router
Last Reply 1 hour 4 min ago.
444 0 5 11 amukwazhe
discussion Shutting Down VLAN1 for Security & switchport trunk native
Last Reply 1 hour 34 min ago.
8813 0 5 8 Peter Paluch
discussion Double NAT help needed
Last Reply 1 hour 41 min ago.
3 0 0 0 eaglesfan73@gma...
discussion How to test local ssh/console credentials when switch is authenticating to RADIUS?
Last Reply 1 hour 41 min ago.
1 0 0 0 rweir0001
discussion Protecting Multicast PIM, BSR, or Auto-RP on the Access Layer?
Last Reply 6 hours 9 min ago.
0 0 0 0 Jonathan Schulenberg
discussion LAN_ VTP
Last Reply 7 hours 42 min ago.
24 0 4.5 6 alvinreddy
discussion Small office setup - T1 connection, 1 switch, & 1 router and DHCP server config info
Last Reply 9 hours 14 min ago.
25 0 0 6 rival9217
discussion why is port security errdisabling a small number of ports with no obvious fault?
Last Reply 10 hours 30 min ago.
44 0 5 3 rosaho
discussion Cisco 2511-RJ Issue
Last Reply 10 hours 31 min ago.
21 0 0 4 rosaho
discussion 4507R+E when conneted 10G fiber sup status led goes orange
Last Reply 10 hours 33 min ago.
61 0 1 7 rosaho
discussion Using a Cisco 1941/K9 configured "Router-on-a-Stick" down to a Cisco 2960 Switch with 11 VLANs
Last Reply 10 hours 36 min ago.
296 0 0 5 rosaho
discussion Details for the load balancing algo used in a cisco 200 series switch - ip-mac algo to select a port?
Last Reply 10 hours 37 min ago.
16 0 0 1 rosaho
discussion how to configure netflow on cisco 7304 for ipv4 and ipv6
Last Reply 10 hours 38 min ago.
27 0 0 1 rosaho
discussion dot1x and ACS 5.2
Last Reply 10 hours 39 min ago.
81 0 5 4 rosaho
discussion Cisco 2620XM IPv6 support
Last Reply 10 hours 40 min ago.
62 0 0 1 rosaho
discussion telnet access issue
Last Reply 10 hours 41 min ago.
26 0 0 1 rosaho
discussion IOS switch image
Last Reply 10 hours 43 min ago.
5 0 0 1 rosaho
discussion cisco catalyst 2960 IOS ver12.2(53)se2
Last Reply 11 hours 7 min ago.
3693 0 5 13 beshoo507
discussion 3750 Drops data during Scanning
Last Reply 11 hours 24 min ago.
0 0 0 0 jeffreywatson
discussion Privat VLan not working on 3560
Last Reply 11 hours 51 min ago.
0 0 0 1 Peter Paluch
discussion POE switch or cable length issue
Last Reply 11 hours 56 min ago.
7 0 0 4 ndemers
discussion Routing between ASAs over Ethernet
Last Reply 12 hours 18 min ago.
0 0 0 0 mightyteegar
discussion serivce policy rules
Last Reply 13 hours 58 min ago.
2 0 0 2 Bekzod Fakhriddinov
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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