Switching

Port security is giving me so much grief. I have allowed maximum of 2 mac addresses but for some reason I get several security violation syslog alerts throughout the day and these violations come from different mac addresses, while there is only one ...

I have reached the DSCP section of ONT, so far i think I'm understanding it fairly well...The only thing i don't quite understand yet (and maybe i just haven't reached this section yet) is how or what defines the type of traffic that belongs to a cer...

Is it possible to upgrade switches in a 3750 stack in phases, instead of doing a reload of the whole stack at once?If I put the image on the stack master, then do a reload of that switch, will it come back online and automatically start pushing the i...

I am trying to configure 802.1q in q tunneling over a service provider (not pppoe, or mpls) ethernet link. The SP is doing the VLAN switching for us presently. I send them a VLAN trunk that includes VLANs 100-110 from the hub site and each remote g...

Hi,Strange one here, I have 2 x 3750G switches which connect to our Nortel core switches. The trunk is setup as an Etherchannel, I have 2 ports in each etherchannel goign to the Nortel switches.(I can add a diagram if required)On these 3750's is our...

Not sure what I need to do this:Two cisco 3550 switchesGoal is to have them "stacked" so they act as one switch.When I create a vlan interface and unplug switch A, the vlan interface remains usable by switch B and vise-versa.Do I need to use the Giga...

Hello Dear,How to stop the loop in the switches without enabling spanning-tree on the switches. Let's suppose there are 4 switches in the network and the requirement is NOT TO ENABLE SPANNING-TREE.thanks in advance.best regards

I considering the option of configuring Jumbo frames (9000) for an Oracle Cluster.Am I required to configure jumbo frames on all the switches in this network ?

I have a spaning tree configured on 4 switches that end user are connected to. I have spaning tree enabled, end user are complening of delay of audio coming to the wrk-station , I would like to see if the interfaces are configured for port fast when ...

Hello, I need to do DHCP snooping on a 2950 with IOS 12.1(13)EA1. I follow the documented procedure but all I can get isswitch(config)#ip dhcp snoop ^% Invalid input detected at '^' marker.Am I doing something wrong, or must I up...

Hi, If a new switch_A (Mode : Client) is added in a VTP domain, which is having a higher Revision number , can this cause mis-configuration in already running domain .regardsNeo

Looking for the latest & greatest, with functionality including (but not limited to):- packet sniffing- traffic analysis- network utilization- WiFi capability- network diagrams (Visio integration)Etc.. All the good stuff that we should have in order...

Hi I wish to config vtp pruning but only on some trunks. i have 70 vlans and only want vlans 1,42 and 666 active. Please can some confirm this is the correct method:Core switch:switchport trunk pruning vlan add 1,42,666Does this by default stop all o...

Hi All, I have two ethernet links connected on a single router.I am using PBR(source based) on my router.issue:- ethernet interface line protocol is not going down on my router even if the service provider media down.Reason-Its a ethernet link....