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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Dear all I need to block port 5061 TCP for a number of users.When i want to do this in a 2960 switch and i want to apply it gives the error  %ERROR...
15 min 23 sec ago
Dear Experts After ISSU from 151-1.SY1 to 151-1.SY4 on Catalyst 6509-E SUP720 everything works as expected but we recognized different output from...
by d.bader
5 hours 53 min ago
Hy,Please help with the following config:Site ASW 3850 ip routingvlan1 (data) 10.35.247.248/24vlan20 (voice) 10.35.249.248/24vlan30 (thin clients)...
6 hours 34 min ago
Dear All, What's your opinion about mixing these two technologies in the same Datacenter. IBM VLAG will be used  mainly on the Blade Centers, and v...
6 hours 46 min ago
We have a netapp storage on our Nexus and we are seeing alot of pks discarded on ingreess. I know that the Nexus does ingress queing so this seems...
7 hours 41 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
Switches 6739 569 6 1 0
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Subject Views Votes Rating Replies Last replied by
discussion N5K upgrade 7.0(1) - %STP-2-DISPUTE
Last Reply 1 min 37 sec ago.
154 1 3 9 glen.grant
discussion Nexus 7009 N7K-M2206FQ-23L 40GigE Port Configuration Problem
Last Reply 11 min 53 sec ago.
13 0 0.0 2 Reza Sharifi
discussion Block port TCP 5061 on L2 switch
Last Reply 15 min 23 sec ago.
0 0 0.0 0 Michael Turkstra
discussion Access-list Per vlan
Last Reply 51 min 25 sec ago.
0 0 0.0 2 rizwanr74
discussion Power-Related Issues for 6500s
Last Reply 1 hour 27 min ago.
17 0 0.0 1 Madhukrishnan G...
discussion Cisco Bug: CSCtf85481 - Sup6L-E reloads silently
Last Reply 1 hour 30 min ago.
5 0 0.0 2 m.teixeira
discussion Cata 6500 SUP
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10 0 0.0 1 Madhukrishnan G...
discussion Cisco 3850 routing issues
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25 0 0.0 4 Andre Neethling
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Last Reply 2 hours 9 min ago.
18 0 5 3 Joseph W. Doherty
discussion %PLATFORM_ENV-1-PWR_RPS: Redundant power supply faulty or in standby mode
Last Reply 2 hours 10 min ago.
4 0 0.0 1 Madhukrishnan G...
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Last Reply 2 hours 11 min ago.
0 0 0.0 2 Reza Sharifi
discussion VSS compatibility Cisco 4500R sup7E
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3 0 0.0 3 rakeshvelagala
discussion 3524XL canot ping from CLI nd IP phones do not DHCP address
Last Reply 2 hours 17 min ago.
23 0 0.0 7 Michael Durham
discussion Routing priority question
Last Reply 2 hours 25 min ago.
0 0 0.0 1 Jon Marshall
discussion split switch for dmz
Last Reply 3 hours 42 min ago.
100 0 4 8 n14nguyen@ucsd.edu
discussion multicast on 6500
Last Reply 1 hour 56 min ago.
15 0 0.0 4 Jon Marshall
discussion Having trouble getting WLAN to access outside its subnet
Last Reply 3 hours 46 min ago.
23 0 0.0 1 Brett Tesdall
discussion Where can I get the Cisco Generic Visio Icons in Color (Cisco blue)?
Last Reply 4 hours 59 sec ago.
12359 0 5 6 Neno Spasov
discussion CISCO Nexus 5000 CISCO IOS 3012
Last Reply 4 hours 19 min ago.
24 0 0.0 2 JWISE2011
discussion C2960S switches reset SFP+ ports hourly
Last Reply 4 hours 48 min ago.
11 0 0.0 1 Reza Sharifi
discussion 3850 switch stack upgrade with minimum downtime
Last Reply 5 hours 7 min ago.
52 0 0.0 5 Reza Sharifi
discussion Cisco Boobldr C3560E 12.2 with IOS 15
Last Reply 5 hours 22 min ago.
0 0 5 1 herferna
discussion TDR cable testing support on the 2960-X
Last Reply 5 hours 30 min ago.
16 0 0.0 4 Paul McGurn
discussion ACL inter-vlan routing
Last Reply 5 hours 36 min ago.
77 0 5 10 jonasvanraes1
discussion VSS SUP720 strange behaviour after ISSU 15.1(1)SY4
Last Reply 5 hours 53 min ago.
0 0 0.0 0 d.bader
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Subject Views Rating Comments Author
Single-sided vs double-sided vpc
Last Reply 1 day 5 hours ago.
8577
3.7
15 pnagpal
EEM Script for collecting data during Intermittent High CPU issue
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Troubleshooting Nexus 7000 - Useful commands
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Deep dive into EIGRP Summarization
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Routing Protocol Selection Guide - IGRP, EIGRP, OSPF, IS-IS, BGP
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93558
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1 Shaun Hummel
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96677
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example of Embedded Event Manager (EEM) on my 881W - to shut down a interface at 1am
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191
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2 dshornstein
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3855
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1 inderdeeps
Switch Fabric- Troubleshooting tips
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18349
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2 pnagpal
The "%SW_DAI-4-DHCP_SNOOPING_DENY:" error message is received when configuring the dynamic ARP inspection in switches that run Cisco IOS Software
Last Reply 1 month 6 days ago.
21922
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4 TCC_2
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ITD: Load Balancing, Traffic Steering & Clustering using Cisco switches
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55
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0 expertadvisor20151
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5120
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OSPF Design Best Practices
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34863
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2 pnagpal
Importance of BPDU Guard and BPDU Filter !!
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79158
4.7
11 ganeshh.iyer
The VLAN goes to the administratively down state if two or more VLANs are configured
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27315
3.7
3 TCC_2
Nexus - vPC Recommendations
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17489
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2 pnagpal
Known Issues on Cisco 7600 Router ES+ Line Cards
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12474
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6 Aleksandar Vidakovic
Filter Results
Subject Views Rating Comments Author
blog How do etherchannel HASH algorithm works and LOAD DISTRIBUTION happen?
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21483
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12 jakula
blog License Activation on 4500
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150
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1 sheraz butt
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2105
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5 aninchat
blog Booting Cisco Router from a TFTP server
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14475
5.0
3 ajaju
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36884
5.0
7 aninchat
blog Configuring a frame-relay switch
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5802
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7 aninchat
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3 Anand G
blog Difference between N7K-M132XP -12 and N7K-M132XP -12L
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1 ramugaju
blog About "TestErrorCounterMonitor" in 6500/7600
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1 Anand G
blog Parity Error.
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2256
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