ciscl acl
i have 3 core switches having 40 vlans users in vlan 40 only communicate with vlan 40 and other should  be deny except one ip 192.168.5.25 can access to vlan. no hsrp for the vlan 40 configured. root bridge for vlan 40 is core 3 switch. i try various ways but i am not able [...]

Answer Question   |  September 25, 2009  4:23 AM
Cisco 4506, Cisco ACL, Cisco switches, VLAN

STP Altn BLK port is green
Can any one tell me why the block port, which I thoght should be amber, is green?  I have 2 x 2950 swtiches and 2 x 3550 swtich, all initial config (no config), connected to each other with cross cables. Everything seems to work as it should when check with IOS display, but all ports [...]

Answer Question   |  November 9, 2009  8:24 PM
Cisco 2950, Cisco 3350, Cisco switch configuration, Cisco switches, Switches

installing a new switch
What all needs to be done when upgrading and adding new switches where old ones exist

Answer Question   |  September 24, 2009  2:49 AM
Cisco switches, Switch configuration, Switches, Windows XP

mac addresses on cisco switches
where do you get the mac addresses to statically configure ports on a switch? why would you need to connect 2 switches together? ccna study. thanks any info. appreciated.

Answer Question   |  September 27, 2009  8:24 PM
Cisco switch configuration, Cisco switches, MAC Address Table

Configuring Cisco and HP Switches
Can an HP ProCurve switch be configured to work with a Cisco switch? Say a for example 3750 or 6506.  By work I mean, be able to use VLANs create on Cisco side to work on HP side.  Also, for a Cisco trunk to work with on an HP switch.

Answer Question   |  February 14, 2011  3:35 AM
Cisco 3750, Cisco 6506E, Cisco switches, HP ProCurve, HP ProCurve 2824, HP switches

Monitoring network end user operation with a cisco router
Hi    One of my client requires a solution for monitoring end users traffic  going through a cisco  router.There is a lot of problem with over utilisation of WAN link by end users. The company need a solution for monitoring operation of end users(who & where they are trying to communicate).   Please suggest an [...]

Answer Question   |  September 16, 2009  5:58 AM
Cisco 1841, Cisco Routers, Cisco switches, Network monitoring

BTS 10200 command definitions
Are there definitions to the commands on the Cisco BTS 10200 switch whereby I can understand what each command input means

Answer Question   |  September 11, 2009  1:38 PM
BTS, Cisco, Cisco switches

Can’t browse the internet via the PIX
Hay everyone, here is my situation i have two 3700 cisco router one 3750 switch and one 525 pix firewall. I connect one of the router to a cable modem and received a dhcp address from then i NAT all out going address, and that works fine. Now i am trying to add the 525 [...]

Answer Question   |  October 19, 2009  2:36 PM
Cisco 3700, Cisco 3750, Cisco PIX, Cisco Routers, Cisco switches, PIX 525, PIX 525 firewall

Can’t connect D-Link media converter with Cisco switch 2950
I am using Cisco switch 2950 connected with a D-Link media converter. When power is reset, that switch is up but the port connected with the media converter is down. After I reset power of the media converter, the link comes up. What’s going on here, and how can I fix this?

Answer Question   |  August 27, 2009  9:52 PM
Cisco 2960, Cisco switches, Networking, Routing and switching

Cisco Networking
We have Cisco 4506 Switch, At one incidence it got down due to uncertain power failure. I dont know how to boot it again when power will up

Answer Question   |  August 26, 2009  11:34 AM
Cisco 4506, Cisco networks, Cisco switch configuration, Cisco switches

Networking
show ip arp | in [em]ip address[/em] This command is used to find mac address and Switch port of ip address, but how can we find IP Address from Mac Address in Cisco Switches ?

Answer Question   |  August 25, 2009  12:04 PM
Cisco IOS, Cisco switches

VLANS and cisco 2960 switch
VLANS and cisco 2960 I have a new cisco 2960 switch gig 0/1 connecting to a 3560 on gig0/9. the problems is my vlans will not come up. I have configured another switch the same exact way and it works fine. The only line in the commands of bith switches that is different is ip [...]

Answer Question   |  August 14, 2009  2:35 PM
Cisco 2960, Cisco 3560 Catalyst Switch, Cisco switches, Switches, VLAN, VLAN Setup

Cisco 3750 Switch Script
I have 50 switches of cisco 3750 POE model. Do any one has a script for Shuting down the POE ports after office hour , which will help to save the power used by cisco IP Phone. If any one have it , please do mail me the link or code on below mail id [...]

Answer Question   |  August 11, 2009  11:18 AM
Cisco 3750, Cisco switches

Optimized network Diagram
Hi I have two Cisco 3750 redundant switches, a BlueCoat, an exchange server, a microwave connection, I want to connect them to a Cisco ASA 5510, and make a DMZ for the exchange server, Please some one give me an optimized diagram for the connection of those devices.

Answer Question   |  August 9, 2009  11:53 AM
Cisco 3750, Cisco ASA 5510, Cisco switches, Network applications management, Network Diagram, Switches

comparacion entre switches 2950 y 2960
Necesito saber dado a algunas recomendaciones que me han llegado ¿que ganaria pasando de un switch 2950 a un 2960? administra mejor las vlans??es mas rapido??etc agradeceria sus comentarios y opiniones personales hacerca de los aparatos ***************************** I need to know given to some recommendations that have come to me that ganaria happening from a [...]

Answer Question   |  August 6, 2009  7:06 PM
Cisco 2950, Cisco 2960, Cisco switches, Switches

comparaciones entre switch 2950 y un 3750 cisco
necesito saber ventajas y desventajas de los switch cisco 2950 y 3750, ya que tengo que segmentar una red, ya tengo el 2950 pero esta la opcion de adquirir un 3750..¿que hago?

Answer Question   |  August 6, 2009  1:54 PM
Cisco 2950, Cisco 3750, Cisco switches

problem encountered between 3com 4950 to catalyst 500
I encountered a problem between the connection of 3 com (4950) to catalyst express 500. 3 com is located in the server room and act as our distribution switch, from server room it is connected to catalyst 500 using fiber optic cable (multi mode). I connect the 3 com to the sfp uplink of the [...]

Answer Question   |  July 1, 2009  9:39 AM
3Com 4950, 3Com switches, Cisco 500, Cisco switches, Network connectivity, Switch configuration, Switches

nexus 5020 keepalives
I do not have the option to do a ‘no keepalives’ on an interface like i have on other switches. did the 5020 do away with this option.

Answer Question   |  January 8, 2010  6:33 PM
Cisco 5020, Cisco switches, Keepalives, Nexus, Nexus 5020

Configuration between L3 switch 3750 and L2 switch 2960 via trunk port
I am going to connect three L2 switches 2960 from L3 Switch 3750, means all three L2 switches are connected to L3 switch via trunk switch. Thanks & Regards, And i am going to configure VLANs on L3 Switch. So plz let me suggest,if both switches are in server mode then i should configure VLAN [...]

Answer Question   |  June 19, 2009  9:53 AM
Cisco, Cisco 2960, Cisco 3750, Cisco Catalyst 2960, Cisco Catalyst 3750, Cisco switch configuration, Cisco switches, Cisco VLAN, L2 Switches, L3 Switches, Switch configuration, Switches, VLAN

Free Chapter – Implementing Multicast on Cisco Catalyst Switches
Another free chapter download is available on the IT Bookworm Blog. Written by: David Barnes and Basir Sakandar Book: Cisco LAN Switching Fundamentals Overview: “Cisco LAN Switching Fundamentals provides an easy-to-understand introduction to LAN switching best practices using Cisco Catalyst switches. This book provides you with a wealth of details on the architecture, operation, and [...]

Answer Question   |  June 18, 2009  11:53 AM
Basir Sakandar, Cisco, Cisco Press, Cisco switches, David Barnes, Free Chapters, Switches