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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Good morning, I have a Cisco SG300-10 10Port Gigabit Managed Switch that is set to L3 Mode. I have set 2 vlan (vlan 30 and vlan 40) and set a stati...
1 hour 2 min ago
Dear Support, I have some issues with my VPN site to site. The tunnel is up but  no traffic. I receive this error message from the logs: Please you...
2 hours 17 min ago
Can someone explain Delay and Reliability as per below output? How are they calculated? Router1#show interface TenGigabitEthernet 2/0TenGigabitEthe...
8 hours 54 min ago
Hi,When I searched for Cisco 6500 series QoS configuration guide, I could only find 'mls qos' commands. But, on the cisco device I could read the c...
11 hours 27 min ago
Hi community, i´m aware that the archive trick doesn´t work on the Nexus.What i could easily achieve on the Nexus 3064 was a daily backup with the...
12 hours 16 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 Advice
Last Reply 5 min 22 sec ago.
20 0 5 5 Richard Burts
discussion OSPF/EIGRP Redistribution with filtering routes distribute-list
Last Reply 7 min 38 sec ago.
4 0 0.0 1 Reza Sharifi
discussion VOIP phone connection through VPN/leased Line
Last Reply 30 min 2 sec ago.
12 0 0.0 3 ssweehinlew
discussion One VLAN not passing thru trunks, other VLANs are working
Last Reply 50 min 45 sec ago.
0 0 0.0 3 Reza Sharifi
discussion Access-list Permit and Deny for SG300-10 Switch, ACL
Last Reply 1 hour 2 min ago.
0 0 0.0 0 rkent649649
discussion On N5Ks, HSRP gateway on orphan port routers?
Last Reply 1 hour 30 min ago.
0 0 0.0 2 ck.chaminda@gma...
discussion VPN site to site UP but no traffic
Last Reply 2 hours 17 min ago.
0 0 0.0 0 ramatoulaye.hane1
discussion Stack Member numbering
Last Reply 4 hours 31 min ago.
4 0 0.0 2 ahmad82pkn
discussion LACP Best Practice Configuration
Last Reply 5 hours 8 min ago.
9 0 5 3 Reza Sharifi
discussion ASA Inside Interface IP's Best Practice
Last Reply 5 hours 21 min ago.
3 0 5 3 Reza Sharifi
discussion None License Switch
Last Reply 6 hours 15 min ago.
0 0 5 7 Reza Sharifi
discussion stacking 3750-X and 3750G
Last Reply 6 hours 24 min ago.
49 0 0.0 4 rosaho
discussion Port config to Layer 2 ISP cirtcuit
Last Reply 6 hours 27 min ago.
6 0 5 3 Mokhalil82
discussion Switch 3560E issue
Last Reply 6 hours 28 min ago.
54 0 0.0 2 rosaho
discussion How to show module and SFP information include hardware serial number on Nexus switch?
Last Reply 6 hours 29 min ago.
1124 0 5 3 rosaho
discussion fabric interconnect and Native Vlan
Last Reply 6 hours 32 min ago.
31 0 5 3 rosaho
discussion Cisco Smart Meters
Last Reply 6 hours 34 min ago.
27 0 5 2 rosaho
discussion eigrp stub connected static config
Last Reply 6 hours 41 min ago.
3 0 0.0 8 mahesh parmar
discussion DHCP pool and ACL
Last Reply 7 hours 4 min ago.
33 0 0.0 7 Roberto Kippins
discussion cisco switch
Last Reply 7 hours 5 min ago.
13 0 0.0 2 rosaho
discussion VLAN Trunk mode configuration
Last Reply 7 hours 29 min ago.
8 0 0.0 2 rosaho
discussion Outdiscard increase very high
Last Reply 7 hours 30 min ago.
6 0 0.0 1 rosaho
discussion Cisco 6500 Rommon Problem
Last Reply 7 hours 32 min ago.
15 0 0.0 2 rosaho
discussion Request for IPFIX (NetFlow Version 10) Flow-Record Format
Last Reply 7 hours 32 min ago.
27 0 0.0 1 rosaho
discussion nexus 3048 switches can't ping ok in same vlan
Last Reply 7 hours 33 min ago.
54 0 0.0 1 rosaho
Filter Results
Subject Views Rating Comments Author
Egress QOS
Last Reply 1 day 17 hours ago.
52145
5.0
13 somgupta
Virtual switching system (VSS) Configuration For Cisco 4500 series switches
Last Reply 1 week 22 hours ago.
51181
4.7
51 ashirkar
Cisco 891 fresh configuration/management without console cable
Last Reply 2 weeks 6 days ago.
12
0.0
0 totardo.tobing11
3850x VLAN Switch Port Active but no MAC or IP Address
Last Reply 2 weeks 6 days ago.
84
0.0
2 TOM FRANCHINA
How to define the VLANs allowed on a trunk link
Last Reply 2 weeks 6 days ago.
28
0.0
0 KHALEELUR RAHMAN.A
unable to ping pc from (vlan-A) to pc on (vlan-B)
Last Reply 4 weeks 1 day ago.
25
0.0
0 minestraschaos1
The VLAN goes to the administratively down state if two or more VLANs are configured
Last Reply 1 month 4 days ago.
25129
3.7
4 TCC_2
Importance of BPDU Guard and BPDU Filter !!
Last Reply 1 month 5 days ago.
92490
4.7
12 ganeshh.iyer
The "%SPANTREE-SP-2-RECV_BAD_TLV:" error Cat 6500 Cisco IOS system software
Last Reply 1 month 1 week ago.
4051
0.0
0 TCC_2
3850 Boot Mode
Last Reply 1 month 1 week ago.
1475
0.0
1 Collin Clark
LICENSING on 2900/3500/3700
Last Reply 1 month 1 week ago.
18329
0.0
3 ranraju
Router Cisco 2921 auto reboot
Last Reply 1 month 2 weeks ago.
74
0.0
4 npsangvt1
ICANN: Name Collision Occurrence Management Framework. Special IP Address127.0.53.53
Last Reply 1 month 3 weeks ago.
47
0.0
0 josecesp
Spanning Tree Loop Troubleshooting and Safeguards
Last Reply 1 month 3 weeks ago.
46493
5.0
2 James D Hensley
Understanding Ethernet Virtual Circuits (EVC)
Last Reply 1 month 3 weeks ago.
291096
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 2 months 15 hours ago.
8080
0.0
1 TCC_2
Password Recovery on Cisco Catalyst 3850
Last Reply 2 months 4 days ago.
3121
0.0
3 Collin Clark
Configuring a router Eth int or SVI to be a DHCP client
Last Reply 2 months 5 days ago.
4484
4.0
0 TCC_2
The card in a fixed hardware configuration Cat chassis functions improperly, not online
Last Reply 2 months 5 days ago.
632
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 5 days ago.
11408
0.0
0 TCC_2
%SYS-3-SYS_LCPERR3:Module X: Fatal exception occurred Cat 6k, WS-X6348-RJ45 module reset
Last Reply 2 months 5 days ago.
393
0.0
0 TCC_2
How to use Time-Domain Reflectometer (TDR)
Last Reply 2 months 1 week ago.
72757
5.0
68 Leo Laohoo
Retrieving Core files from Cisco Nexus switching platforms
Last Reply 2 months 1 week ago.
14213
5.0
1 Yogesh Ramdoss
Using 3850 Embedded Wireshark (Wired)
Last Reply 2 months 2 weeks ago.
36493
5.0
2 Colby Beam
The "%C6KENV-SP-4-MINORTEMPALARM:" error message displays in Catalyst 6500 series switches with Sup720 that runs Cisco IOS system software
Last Reply 2 months 2 weeks ago.
3787
0.0
1 TCC_2
Filter Results
Subject Views Rating Comments Author
blog Output drops due to QoS on 2960/3560/3750 switches
Last Reply 5 days 20 hours ago.
25459
5.0
1 Shashank Singh
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
Last Reply 5 months 1 week ago.
19381
4.6
12 jakula
blog License Activation on 4500
Last Reply 8 months 3 weeks ago.
299
0.0
1 sheraz butt
blog Nexus 7000 and IOS OSPF Loop Prevention and Interoperability
Last Reply 8 months 4 weeks ago.
7260
5.0
7 Robert Taylor
blog How to build the topology of an OSPF area
Last Reply 11 months 3 weeks ago.
2403
5.0
5 Aninda Chatterjee
blog Booting Cisco Router from a TFTP server
Last Reply 11 months 3 weeks ago.
17607
5.0
3 ajaju
blog Loading an IOS on a switch via Xmodem
Last Reply 1 year 1 week ago.
45310
5.0
7 Aninda Chatterjee
blog Configuring a frame-relay switch
Last Reply 1 year 1 month ago.
6368
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.
393
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.
128
0.0
0 Francine Richards
blog Cisco WCCP with Bluecoat (Multicast mode)
Last Reply 1 year 2 months ago.
115
0.0
0 vishal_2007
blog OSPF over IPsec Tunnel stucks in INIT state
Last Reply 1 year 2 months ago.
369
5.0
0 hsticher
blog Pre-build SPT feature on Nexus - Benefits & Caveats
Last Reply 1 year 3 months ago.
1379
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.
747
5.0
2 srereddy
blog Flexlink in Cisco Layer 2 network
Last Reply 1 year 3 months ago.
107
5.0
0 jakula
blog Community Tech-Talk Series: Troubleshooting High CPU due to Multicast
Last Reply 1 year 3 months ago.
8143
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 3 months ago.
288
0.0
0 Julie Burruss
blog Switch: How to test a cable status?
Last Reply 1 year 3 months ago.
6688
5.0
3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
Last Reply 1 year 7 months ago.
1813
0.0
1 Ramu Gajula
blog About "TestErrorCounterMonitor" in 6500/7600
Last Reply 1 year 10 months ago.
1977
4.7
1 Anand G
blog Parity Error.
Last Reply 1 year 11 months ago.
2352
4.5
4 InayathUlla Sharieff
blog Nexus 7000 ACL logging (OAL)
Last Reply 2 years 2 days ago.
16383
5.0
7 Robert Taylor
blog Multicast for the heart Part I: IGMP
Last Reply 2 years 7 months ago.
4338
4.8
1 Aninda Chatterjee
blog Router Crashes
Last Reply 2 years 8 months ago.
5882
5.0
1 ajaju
blog Leak Map - Eigrp, Some leaks are useful..
Last Reply 2 years 12 months ago.
10916
5.0
7 pnagpal
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