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 everybody, I was doing some configurations using Nexus 7k with OSPF and I saw a point that I wasn't able to find a document with an answer for t...
1 hour 29 min ago
Dears, I have a problem to enable application recognition with NetFlow in Cisco 4500 switch, the switch has supervisor "engine Sup 7L-E 10GE (SFP+)...
10 hours 52 min ago
We currently have a number of Nexus 5548 (running 7.0(5)N1(1)) in a Farbicpath. Pairs of these Nexus switches run vPC+ to downstream switches all w...
13 hours 1 min ago
Good morning.I have been looking at the data sheet for the VG350 and notice it is rated at 720w. I assume this is the startup power. Does anyone kn...
13 hours 44 min ago
Good morning, After looking at the data sheet for the ASR930 I can see it is rated at 600W. I am guessing this is startup power. What would the con...
13 hours 49 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 C3560G and C2960's intervlan routing issue
Last Reply 3 min 47 sec ago.
0 0 0.0 5 Greg Wrobel
discussion Native VLAN mismatch
Last Reply 1 hour 59 sec ago.
0 0 5 2 jplenbrook
discussion Routing Bit Set on LSA for NX-OS
Last Reply 1 hour 29 min ago.
0 0 0.0 0 Plinio Brandao
discussion Extended access list/route map question
Last Reply 2 hours 11 min ago.
0 0 4.93333 6 vivek srivastava
discussion Routing
Last Reply 2 hours 14 min ago.
0 0 3.5 6 vivek srivastava
discussion Nexus vPC to Arista MLAG
Last Reply 2 hours 15 min ago.
0 0 0.0 2 tporembski
discussion WS-C3850-12S-S with WS-C3650-24TD-S 10Gig Connection
Last Reply 2 hours 57 min ago.
0 0 4 3 Jasaatum_89
discussion L2 EtherChannel Load Balancing
Last Reply 3 hours 27 min ago.
0 0 5 5 jplenbrook
discussion Is it possible to remame a VDC on a Nexus 7000?
Last Reply 3 hours 38 min ago.
3708 2 5 4 dabonilla
discussion "Received BPDU with inconsistent peer" when adding VLAN
Last Reply 3 hours 51 min ago.
0 0 0.0 9 jmandersson
discussion Cisco Nexus 6004 and Mellanox QSFP
Last Reply 4 hours 27 sec ago.
0 0 0.0 7 Reza Sharifi
discussion CRC and Undersize errors
Last Reply 4 hours 47 min ago.
0 0 0.0 2 edisonguerrero
discussion Power Consumption Calculation
Last Reply 5 hours 11 min ago.
0 0 0.0 2 Mohammed Moqbel
discussion Setting EIGRP Route Preference on subinterfaces
Last Reply 5 hours 35 min ago.
0 0 5 2 Pkirchgessner1
discussion NAT with VPN ipsec client
Last Reply 6 hours 22 min ago.
0 0 0.0 1 le180921081
discussion Switch Stops Responding
Last Reply 6 hours 41 min ago.
0 0 0.0 3 davies_admin
discussion strom control limitation on 6509 running 12.2.33.sxi6
Last Reply 7 hours 25 min ago.
0 0 0.0 1 mark malone
discussion Advice how i can pickup IOS from router
Last Reply 8 hours 18 min ago.
0 0 0.0 2 devils_advocate
discussion Unable to find visio stencil for 6506-E FourX Adapter
Last Reply 8 hours 23 min ago.
116 2 0.0 1 hawley_craig
discussion I Can't write the "ip multicast-routing..." command
Last Reply 8 hours 33 min ago.
0 0 0.0 3 mark malone
discussion Cisco 3750 stack switches
Last Reply 8 hours 48 min ago.
0 0 0.0 4 svadmin2009
discussion switch ports going abmer and back automatically
Last Reply 9 hours 11 min ago.
0 0 4 7 morteza badizamani
discussion GLBP IP SLA icmp readability
Last Reply 9 hours 38 min ago.
0 0 5 4 Hassan Chalabi
discussion Multiple Subnets on 1 L2 VLAN - Good Practice?
Last Reply 10 hours 6 min ago.
0 0 0.0 2 Mirrwood6
discussion L2 over GRE on Catalyst Switches
Last Reply 10 hours 21 min ago.
0 0 0.0 3 Joseph W. Doherty
Filter Results
Subject Views Rating Comments Author
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 17 hours 17 min ago.
104405
4.7
51 ashirkar
Egress QOS
Last Reply 2 days 11 hours ago.
50321
5.0
12 somgupta
Cisco 891 fresh configuration/management without console cable
Last Reply 1 week 6 days ago.
0
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 1 week 6 days ago.
0
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 1 week 6 days ago.
0
0.0
0 KHALEELUR RAHMAN.A
unable to ping pc from (vlan-A) to pc on (vlan-B)
Last Reply 3 weeks 3 days ago.
0
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 3 weeks 6 days ago.
23162
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 4 weeks 5 hours ago.
84068
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 6 years 1 week ago.
3959
0.0
0 TCC_2
3850 Boot Mode
Last Reply 1 month 2 days ago.
1203
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 1 month 5 days ago.
17396
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 1 month 2 weeks ago.
0
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 1 month 2 weeks ago.
0
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 4 years 5 months ago.
42740
5.0
2 James D Hensley
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 1 month 2 weeks ago.
286377
5.0
37 plumbis
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 1 month 3 weeks ago.
7832
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 1 month 3 weeks ago.
1972
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 6 years 1 week ago.
4322
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 6 years 1 week ago.
624
0.0
0 TCC_2
How to configure a Flex Link for link-level redundancy in Cat switches that run IOS
Last Reply 6 years 1 week ago.
11294
0.0
0 TCC_2
%SYS-3-SYS_LCPERR3:Module X: Fatal exception occurred Cat 6k, WS-X6348-RJ45 module reset
Last Reply 6 years 1 week ago.
383
0.0
0 TCC_2
How to use Time-Domain Reflectometer (TDR)
Last Reply 2 months 2 days ago.
67347
5.0
68 Leo Laohoo
Retrieving Core files from Cisco Nexus switching platforms
Last Reply 3 years 1 week ago.
13282
5.0
1 Yogesh Ramdoss
Using 3850 Embedded Wireshark (Wired)
Last Reply 2 months 1 week ago.
35732
5.0
2 Colby Beam
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 4 months 3 weeks ago.
17786
4.6
12 jakula
blog License Activation on 4500
Last Reply 7 months 4 weeks ago.
201
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 8 months 3 days ago.
7154
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 11 months 2 days ago.
2274
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 11 months 4 days ago.
16081
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 11 months 2 weeks ago.
40336
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 1 year 3 weeks ago.
5999
5.0
7 Aninda Chatterjee
blog Upcoming Ask the Expert Event Featuring Ahmad Manzoor - Senior Pre-Sales Engineer at AGCN
Last Reply 1 year 1 month ago.
386
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 1 month ago.
124
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 1 month ago.
107
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 1 month ago.
328
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 3 years 1 month ago.
1329
5.0
0 srereddy
blog Link de-bounce timer operation when used on SFP+ ports on Nexus switches
Last Reply 3 years 1 week ago.
743
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 2 years 4 months ago.
94
5.0
0 jakula
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 4 years 2 months ago.
24555
5.0
0 Shashank Singh
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 2 years 1 month ago.
7925
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 2 months ago.
276
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 2 months ago.
5448
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 6 months ago.
1627
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 9 months ago.
1859
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 10 months ago.
2294
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 1 year 11 months ago.
15705
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 6 months ago.
4236
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 8 months ago.
5822
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 11 months ago.
10458
5.0
7 pnagpal
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