Switching

HelloIm trying to configure DSCP taggning on a C2950 switch. I have tried different approaches with no success.1) Use of access-list, class-maps and policy-maps applied to both phone interface and uplink interface in a configuration such as;mac acces...

Hi everyone, im about to start a diploma in computing and IT, one of the modules is around networking, I have no experience in this field and was wondering if I will be able to grasp it? I have a decent understanding of working Pc's doubt this will h...

Dear all,I am getting the following message in our VSS.Sep  2 05:56:18.501: %CDP-SW1-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/2/29 (304), with HQ-DC-CSW-VSS.abc.comGigabitEthernet2/2/28 (300). interface GigabitEther...

Hello, I am confused as to connecting 3 3750X switches for stackpower. I have seen 3 different ways of connecting the stackpower cables and am confused as to which way I should connect them. any and all help is appreciated.

Hi, We got an issue with N7K. At lot of user around 10,000. The WLAN VDC connecting 4 of WLC5508 goes out of service. We'are holding a couple of N7K peering each other. We allocated a few port for this WLAN VDC. We can not even figure out what the r...

I saw some previous topics  regarding MSTP and  PVSTP interaction but I still have some uncertainties. Also I've read the "understanding MSTP article" from cisco's website. my setup i:c1 -----c2c1 needs to be root for vlan 1-20c2 root for rest of the...

I have a stack of six 3850 switches. One is in BUNDLE mode and the others are in INSTALL mode. How do I change the one switch so all are in INSTALL?Switch Ports Model SW Version SW Image Mode------ ----- ----- ---------- ---------- ----* 1 56 WS-C385...

Hi all !From several Cisco router (IPSLA sender) and whatever the target router (IPSLA responder receiver), the values regarding round trip time (RTT) are false (always equals to 1ms) as you can see below :---Round Trip Time (RTT) for       Index 71...

Overall, I'm having issues with a VLAN interface (let's say, vlan100) receiving an IP address through DHCP. The network topology is set up similar to this-[DHCPserver] - - - -((network cloud))- - - - [3650] -g1/0/1- - - - - - g1/1/1- [3650]Both inter...

Hi!We need to allow DNS Traffic from Lan to Wan network for our internal LAN Users through Cisco Router. May we have the lines to add in the router and do we need anything else to apply this access-list?Thanks.

My apologies if this should be in the WAN section, but I've been battling to make this work for some time, to no avail. I've tried what I feel is everything, so that's why I'm reaching out.Here's what I'm trying to do: create a home lab on different ...