Switching

I have been fighting this for a week plus now and I know I should know this but I just cannot seem to get it all working.  Here is my layout.  Let's tart with what is working correctly, from Building 3 their Internet normally goes out fa0/1 to a Crad...

Hi FolksHow can I add key id, sequence and checksum in GRE tunnel configuration for Cisco 1841 Router?Can I do it in CLI and in GUI(SDM)? How?steps please  

I'm configuring some Nexus 9372PXs running 6.1(2)I3(2). The 6.X configuration guide clearly states that I can create L3 sub-interfaces using the range 1-4094. However, when I attempt to do so, I appear to be getting a limit of 1-511. What am I missin...

Greetings,I have a Cisco SG300-28 SMB switch (software version 1.4.0.88) and I have the strangest phenomenon happening: I have all the ports configured for the same VLAN, but I cannot connect to some of the devices connected to the switch. All the de...

hi,I am using SG300-10PP. Moved to L2 mode.  I am trying to move an interface to trunk port and encapsulation as dot1q.  But I am not getting a command for that.# int gi7# switchport mode trunk# switchport trunk encapsulationIt says 'unrecognised com...

Hello All,I asked this question a few days ago. However, after doing some reading/research I might be better able to properly ask for what I am looking forIn my office I have two subnets 192.168.100.X and 192.168.111.X  Originally I had two offices w...

Please I need some help. I was task to configure our cisco router to act as internet gateway. This work perfectly fine as DHCP server. The problem was is does not act as internet gateway.I cannot use the dns server ip given by ISP since we have our o...

Hi AllCan anyone tell me what things can use up the cpu on a switch?would it be things going to the switch rather than through it ? cheers 

Hi All,I am having a problem from one of my branch sites to my data center. Please see attached topology drawing. Client connections to the sales server in the data center are intermittently disconnecting their sessions.  Wireshark shows what is happ...

hey guys, my Cisco 2960-XR recently lost power when commin up i noticed that it stuck on a rapid blinking SYST light.it does not move from this. can you advise on its status.

Hello! I have a following problem: we have a network of more than 40 access switches with pair of 4500-X in VSS as a core. On at least one of the access switches connections are slow and frequently broken and i can see on console following logs:50328...

Hi All, replaced one of the older switches with new 2960-x and have some issues.The port where is an AP went to err-disable state :Sep 16 18:01:56.639 UTC: %PM-4-ERR_DISABLE: loopback error detected on Gi1/0/14, putting Gi1/0/14 in err-disable stateF...

I have an upcoming project in which I need to create and divide our company production , database, web, etc. servers into different vlan and how certain users (regular user, admins) with rights is able to have access to certain servers. Since we are ...

I have Qty 2 - "WS-C3560E-48PD" Network Switches which have 2x10Gig ports in them.  Currently they have Twin Gig Converter Modules installed with "10/100/1000BaseTX SFPs" installed in them.If I replace the "10/100/1000BaseTX SFPs" with 10G SR SPFs wi...

I found a 4 years old discussion (https://supportforums.cisco.com/discussion/11380726/can-2960-8tc-s-do-standard-q-q-8021ad) about the 2960 and 802.1ad, but nothing about the newer 2960-X and 802.1ad. There is also no clue about 802.1ad in the datash...