Switching

I have not been able to find an answer to this on my own, so turning to here for help. I have a 2960s that that has a trunk link back to a 4503. On the 2960s end of the trunk I have a 100BaseFX SFP. When I do a sh int on that interface, I get:  sh in...

                                 Hello.I discovered a strange network  problem.  Network  Core consist from two 3750 in stack. There are 18 Vlans on Cisco 3750.  Each port of core connect to switch. When I ping  gate of the vlan, for example Vlan8,  ...

Hi all,This type of Question probably has been asked before but here goes:We have Nortel IP phones connecting to 3750 switches.Port security on the interfaces. A data and a voice vlan.Plugging the phones into the switch the phones work fine, plugging...

Hi,I was just looking to clear all of the current spanning-tree counters after making some changes. I have used the command "clear spanning-tree counters" however this only seemed to clear the interfaces stats such as number of BPDUs sent and receive...

Hi, is it possible to disable the stacking mode on a catalyst 2960x?There is no stacking module but the stacking state is always ready:Switch#  Role   Mac Address     Priority Version  State----------------------------------------------------------*1...

Hello, I just configured DNS server on my cisco 1941. From the router, i can translate google.com and ping the world. As a switch I have the EHWIC-D-8ESG-P and the EHWIC-VA-DSL-A as modem. The machines can comunicate from each other:sun (the default ...

Dear Xperts, Enabled 10 % Multicast & broadcast storm control in the L3 switch interface connected towards L2 switch. Unfortunately user NIC card malfunctioning which generated high frequent broadcast made L3 switch CPU to hit 99%.With the help of ne...

hi i was only new in CISCO equipments but since I was required to get CCNA certification for the company i worked with, i started to train my self by reading and watching instructional videos for CCNA, thank god i manage to learn the basic configurat...

Hi, Would like to know whether HSRP version 2 is having any known instabilities or bugs ?Is that advisable to migrate from HSRP ver 1 to HSRP ver 2 ?  This will need downtime ? Thanks

Hello Support community,  I have a peculiar issue with some new Cisco SG300's and I wonder if anyone has any insight on this. It's a basic setup of one layer 3 SG300-28 trunked via an EPL to a Layer 2 SG300-28.There are three VLAN's, VLAN1, 10, 20. T...

Looking for some help on an issue I've been having lately.  Issue is we recently changed networks and since some of our remote sites are now getting DHCP addresses from our VLAN 1 IP Block. Topology is as follows: DHCP Server --> port 1/3 Cisco 6509 ...