Switching

I am trying find out if it is possible to map a preferred DHCP IP address to a specific port on a Cisco switch/router. What I am after is the ability to connect various devices to a specific physical port on the switch and whatever device is plugged ...

Hi All,We have a customer who is Juniper shop mainly. They are currently at 100 branch setup and planning for 500 branches. Since i have implemented DMVPN before, this is what i proposed to them (they dont require full mesh but strict hub and spoke)....

Hi All, I'm very new to QOS and have some questions. 1. If I enable "mls qos" on the access layer switches will the MLS QOS markings set at the access layer be automatically read at the core/distribution layer, or does the "mls qos" option need ena...

We have a 3750 configured as a gateway, with gig connections to several client switches (all 2950).  Recently, we discovered that one of the switches has an additional connection to the core switch into one of the ethernet ports.  If we remove either...

Hi everyone!We have several stack switches with different IOS on them (basically ipbase 12.2 IOS). It`s needed to move from telnet to SSH. So I should upgrade IOS from ipbase to ipbasek9.I have found that all IOS since 12.2 ipbasek9 supports SSH. But...

Hi there,I´m studying QoS for industrial application, and the goal is to prioritize a traffic to a PLC (Programmable Logic Control) that communicates over Ethernet with UDP. The PLC is very sensitive to delay, jitters and packet losses. Also, we need...

Hi Community.I did the following MST Spanning Tree Config spanning-tree mst configuration  name xxxxxxx  revision1  instance 1 vlan 1, 10-20, 25, 30 So I added every Vlan to the config which we use. But every time when I add one more vlan to the conf...

Hi I have a WS-C4500X-32  at my core connected to 3 WAN routers 2 x C2911 and 1 x C2811 running EIGRP. All four devices form adjacency with each other via a dedicated vlan on the WS-C4500X.Today the WS-C4500X lost adjacency with all three routers, ho...

Please help me to my title concern regarding stacking of two c2960s-ts-l version 12.2(55)SE8, upon configuring the priority of the 1st switch as master the 2nd switch doesn't participate as member. Also when the typing "show switch" in master switch ...

I inherited a closed Cisco development network in a Data Center. The administrator(s) who originally set it up used a lot of static routes. They caused a lot of issues before I had to diagram of the network and understood the signal flow. In the begi...

Hi guys,I have an old Cat4500 with 122-25.EWA6 release and I am trying to configure an external syslog server to receive configuration changes...I suspect that configuration changes are not being logged at all, because in the logging I only get acces...

Hi all, I'm having issues with a simple router on a stick lab. i'm having problems communicating between hosts on seperate vlans. the router is a 3845 and the switch is a 3750.hostname LABROUTER!boot-start-markerboot-end-marker!!enable secret 4 tnhtc...

I have a stack with 3 ws-C3850-48T switches.They are running 3.3.4SE firmware.Installed 12 sept this year.Yesterdag the stack suddently rebootet.To day they have just rebootet Again.Are there a more stable version ?