Switching

Hi,I have noticed the log messages below. Any idea about what there messages are? %IOSXE-3-PLATFORM: 1 process kernel: ERROR L2C_TADX_INT(0)[L2DSBE]: Data Single-Bit Error%IOSXE-3-PLATFORM: 1 process kernel: ERROR CVMX_L2C_ERR_TDT: 0x4260000000159ec2...

After upgrading the license to ipbase we have a port opened for ipv6 (58486) that I do not recognize. This seems to be a random port that gets opened, I say that because the other switch we upgraded the license on has a different port open but in the...

I recently received several 3750-48p's donated by corporations for reuse in a small private school. I am a volunteer IT guy with some cisco background through my job where I mostly work routers so switching is somewhat out there for me.I set the curr...

I have one core switch a and two access switch b and C, now I have no access port left, may I know which switch port (A, B or C) I should Insert my new switch, and any steps to follow? shold we need to do it after office hours?

Hello,     Our users are unable to RDP to or from any VLAN from VPN. Users are prompted for their credentials and the RDP session begins to initialize, but the connection then disconnects. Users are able to RDP from inside the network.  I have placed...

could someone share links to learn 6K, 7K, 5K, 2K, 9K platform? I haven't been able to find good document.

we want to know which computer name is using IP 10.23.1.21 (thorugh wifi) in switch Is it possible using some command to detect? I find show user command can list computer name, any similar command we can have computer name giving ip

hi all,i have a 4510R+E with 2 SUPERVISOR WS-X45-SUP7-E configured in redundancy mode.The status leds of 2 supervisor is orange and don't become green!!Can you help me?Below you can see the redundancy configuration: redundancy mode sso main-cpu  auto...

 We currently have a Cisco 3750x 24port Switch in place but are now going to replace this with a 48port 3750x  what are the best practice to replace the old Switch could i copy the running config file and place it into the new Switch or would creatin...

Hi all, thanks in advance for your advice.We have 2 SG300-28PP switches with the core switch uplink to a Juniper SRX210 appliance.  Both switches have VLANs 1 (native) 36 and 52.  The configuration is basically as below: Switch 2 >> LAG (1U, 36T, 52T...

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...