Switching

Hello Experts, I have found some multiple errdisable commands in my switch. I have no idea why these commands have been defined in my switch. The Network guy before me might have defined these commands. My question is why he has put such a multiple ...

Hi, I have two Cat4500 (as standalone each, not VSS) configured as gateway of my network using HRSP. They are default gateways of many vlans of my network. Regarding STP they use the classic STP 802.1D and one of them are root bridge by lower priori...

I am getting quotes for Structured Cabling and one guy is saying that I can use 40G MPO from my distribution switch up to a 40G MPO patch panel connection and across a 40G MPO trunk but then break it out to 4 x 10G LC ports which I agree with but the...

Does anyone know when Cisco might ship their implementation of 40G-LM4 (aka 40G-Universal)?  This is a transceiver which can employ either two-strand multi-mode (OM3/4) or two-strand single-mode, typically with short distances over single-mode (500m ...

Dear All, We have a cisco ws-c2960s-48fps-l, the problem is from port number 25- 32 are not working.. we tried shut no shut.. nothing no response from port. is it hardware issue? if yes what should be done? if not hardware isssue? what could be t...

We have several Cisco 3750 switches running Version 12.2(25) in our environment.  I have experienced on occasion when I initiate  the sh int status command on a switch stack containing five 3750 switches, it displays a few pages and then the entire s...

Hi I think there are some summary talking about the difference of commands between Nexus7000 and other normal router or Catalyst such as 6500 etc. Anyone knows that and would like to share the link? Thank you

Hi We've bought several SG300 52 port switches, they function well but make a lot of fan noise.  Is there anyway to reduce/control the fan speed so the noise level will decrease?  Several sites suggest to replace the original fans.... but I'm not ver...

I am setting up port spanning for the first time on a  2960 and it seems pretty straightforward but I have a few questions.  Both ports are in the same vlan on the same switch.  When I try to set the encapsulation to dot1q on the destination port I c...

Hello, Can I get some input from some of the QoS pros please. I've noticed interface Output drops on some ports on a 2960X switch. These ports have policy-maps. I've been trying to dig into the QoS side of these and have hit some confusing points. 1....

Hi, Would like seek help regarding my problem with Cisco 1941 Series Router. I encountered 4 defective router since last year with the same case. Here is the error. Failed data equals address testBad RAM at location 0x80422910: wrote 0x80422910, re...

Hello, Following is my new setup. I have configured L3 Cisco 3560 switch. Connected L2 2960 switch to port 24 of L3 switch 3560 for wired clients via DHCP scope, which is working very well Then Connected AP Cisco 1600 to port 23 of L3 switch 3560 for...