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.

 

Provide answers to questions in this community that are awaiting a correct answer.

dear Collegues,could you please say why i get Access-Reject when i trying to authenticate/authorise in Switch with using Domain user account from A...
59 min 36 sec ago
Hi Friends,There is Cat 6506 device which is not getting ping but we are able to login the device and device is working fine.This is a access layer...
1 hour 1 min ago
.Hi ,I am new to vlans so I would request help from this forum.I am presently working on 2 SRX 240 firewalls connect to 2 3012 Cisco catalyst switc...
3 hours 46 min ago
Hellowe have N7k , IOS ver n7000-s2-dk9.6.2.12connected other port due to issued port down (2/6  --> 1/7)i want to know which problem following...
6 hours 10 min ago
HiWe have 4 x Catalyst Express 500-24PC (each Catalyst Express 500-24PC have a 24 Port PoE and 2 x GE)This switch is designed for providing PoE con...
17 hours 9 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 Unable to ping or Telnet switch 3560 but showing in cdp neighbour
Last Reply 1 min 34 sec ago.
6 0 0 5 Shahzad Ayub
discussion Trunk and MSTP config
Last Reply 3 min 34 sec ago.
2 0 0 0 Neville Dsouza
discussion N7K switches
Last Reply 7 min 15 sec ago.
13 0 0 5 avvotyakov
discussion SG500 Crash - VOIP phone need repatching to work?
Last Reply 16 min 33 sec ago.
21 0 0 5 mark malone
discussion High Number of Out Discards on 2960x Switches
Last Reply 33 min 25 sec ago.
78 0 0 14 Robert Hillcoat
discussion AAA authentication Failed with Steel Belted Radius Server
Last Reply 58 min 2 sec ago.
0 0 0 0 Vadim Semenov
discussion Cat 6506 is not getting ping but able to login properly
Last Reply 1 hour 1 min ago.
0 0 0 0 Vijay Singh
discussion Only 1 port does not support speed 1g connection on C2960G switch.
Last Reply 1 hour 3 min ago.
38 0 0 6 Leo Laohoo
discussion Module / Transceiver issue
Last Reply 2 hours 17 min ago.
7 0 0 1 avvotyakov
discussion Dhcp block on non permit mac
Last Reply 3 hours 24 min ago.
29 0 0 0 Ambrish Kumar Pandey
discussion Connect Catalyst Express 500-24PC to Nexus 5020 or 7010
Last Reply 3 hours 24 min ago.
2 0 0 0 Soleymani
discussion Telnet problem to access switch
Last Reply 3 hours 40 min ago.
1 0 0 0 anirudh12b9
discussion Disabling R2D2 interrupt using EEM :5, r2d2_TMC_fatal_intr
Last Reply 6 hours 10 min ago.
2 0 0 0 cjm000001
discussion How many area can be configuration include one ospf process id?
Last Reply 6 hours 17 min ago.
19 0 5 4 YongFeng He
discussion Is it possible to connect switches together via a patch panel?
Last Reply 7 hours 52 min ago.
21 0 0 4 InayathUlla Sharieff
discussion 3750 high cpu utilization
Last Reply 7 hours 54 min ago.
27 0 5 2 InayathUlla Sharieff
discussion Trying to reach global ip address, from within VRF.
Last Reply 11 hours 12 min ago.
11 0 0 2 simongillard1
discussion IP protocol is not to communicate between computers in a LAN. Is that true?
Last Reply 13 hours 33 min ago.
23 0 5 2 Muhammad Thanveer
discussion can HRSP / VRRP be use in the such setup ?
Last Reply 14 hours 16 min ago.
15 0 0 2 Cisco Freak
discussion network assessment and firewall selection
Last Reply 16 hours 1 min ago.
5 0 0 1 Reza Sharifi
discussion Virtual Switching System (VSS) Test on 4500-X
Last Reply 16 hours 30 min ago.
7 0 0 1 Reza Sharifi
discussion Cisco WS-C6509-E , Upgrade from SUP 720 to SUP 2T
Last Reply 16 hours 45 min ago.
26 0 0 1 Reza Sharifi
discussion moxa EDS-408a-MM-SC Cisco 3750X GLC-GE-100FX Slow Communication
Last Reply 1 day 1 hour ago.
151 0 0 1 jonathanvanderzee
discussion Cisco ASA static routing to Cisco 831. help with ACL maybe?
Last Reply 1 day 1 hour ago.
62 0 0 12 Mohammad Moghaddas
discussion Configuring a SM-X Layer 2/3 EtherSwitch Service Module on a 4331 router
Last Reply 1 day 5 hours ago.
412 1 5 5 pratikbhai patel
Filter Results
Subject Views Rating Comments Author
The "%SPANTREE-7-BLOCK_PORT_TYPE : Blocking [chars] on [chars]. Inconsistent port type" message is logged on Cisco Catalyst switches
Last Reply 2 min 29 sec ago.
18676
0.0
2 TCC_2
%C4K_SUPERVISOR-2-SOFTERROR / %C4K_SUPERVISOR-2-FPGASOFTERROR
Last Reply 2 days 20 hours ago.
2
0.0
0 InayathUlla Sharieff
Egress QOS
Last Reply 2 days 21 hours ago.
53703
5.0
14 somgupta
CAM (Content Addressable Memory) VS TCAM (Ternary Content Addressable Memory)
Last Reply 5 days 19 hours ago.
51746
4.6
7 Thamaraiselvam Santhanam
How to Form a Catalyst 3850 Data-Stack and Power-Stack
Last Reply 1 week 2 days ago.
103
0.0
0 Luis Villanueva Brito
Properly Installing Cisco USB Console Driver
Last Reply 1 week 4 days ago.
109
0.0
1 lsgabrillo
How to define the VLANs allowed on a trunk link
Last Reply 1 week 6 days ago.
187991
5.0
3 TCC_2
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 3 weeks 1 day ago.
50296
4.7
53
3850 switch - IOS XE upgrade Detailed (standalone)
Last Reply 3 weeks 1 day ago.
6066
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 1 day ago.
13777
5.0
4 Sivagami Narayanan
Running 40 routers with IOU in 4GB RAM
Last Reply 1 month 2 days ago.
57
0.0
0 Sudeb Das
"Etherchannel Loadbalancing on Catalyst Switches"
Last Reply 1 month 1 week ago.
21518
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.
148
0.0
0 Shaun Hummel
Cisco 891 fresh configuration/management without console cable
Last Reply 2 months 1 week ago.
33
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 2 months 1 week ago.
147
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 2 months 4 weeks ago.
26723
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 2 months 4 weeks ago.
100784
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 3 months 2 days ago.
4213
0.0
0 TCC_2
3850 Boot Mode
Last Reply 3 months 3 days ago.
1793
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 3 months 5 days ago.
19208
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 3 months 1 week ago.
87
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 3 months 2 weeks ago.
54
0.0
0 josecesp
Filter Results
Subject Views Rating Comments Author
blog Loading an IOS on a switch via Xmodem
Last Reply 1 min 26 sec ago.
50184
5.0
8 Aninda Chatterjee
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 1 month 4 weeks ago.
26212
5.0
1 Shashank Singh
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 7 months 4 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 8 months ago.
1980
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 2 years 1 week 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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