Switching

Hello All,I'm having an issue that is similar to what I have seen in other other threads, but with some other, odd behavior. Your input would be greatly appreciated.Some phones are coming up with no problem.Some phones power up and appear to be await...

Good morning/afternooon CSF,I am having some issues with my network. I will start off by saying I am not a very "experienced" net admin, and most of my work revolves around Information Security Management. The net admin here quit, and I got tasked wi...

Good Afternoon,I'm extremely new to the world of Cisco CLI Routers and to be completely honest I know I'm a bit out of my depth here. However, I've been asked to create a basic setup on our SR520 router to connect to a PPPoA BT Connection. Due to the...

Hi all , Customer has  a Catalyst WS-C2960-48PST-L.  and in  some ports we have VoIP phones with PoE company Aastra. If I use first config we have problem when phone boot up.First config: description tp-11-voipswitchport access vlan 250switchport mod...

With the help of forum users, I have a QoS  policy in place that is set to reserve/prioritize traffic for my outgoing VoIP traffic. We outsource our voip solution.I am trying to test my QoS policy by performing multiple file transfers outbound to our...

Hello,current topology is build from 4 6500 switches connected in a ring topology. Using Portchannel (2x 10Gbit) links to connect left side top and bottom 6500's (DC1), 10 Gbit link to connect right side 6500's (DC2)Inbetween a 1 Gbit link is used to...

We have encountered issues where a 4500 chassis switch, connected to a pair of 6509s and running udld port aggressive on its interfaces, will get dropped off the network in the event of a crash and reload of the 4500. Apparently the interfaces on the...

Hi Guys, I have an issue with couple of Cisco 4900M switches. We just got them and tried to use theTwinGig Converter on the 4 ports 10G module. The problem is that the switches sees the new module in slot 2 and when we are inserting the TwinGig Conve...

Tengo una consulta, el switch para conmutar paquetes utiliza las dos tablas (MAC y ARP) o solo la  tabla MAC?

HiI am using cisco packet tracer to configure the hsrp on 3560 (c3560-advipservicesk9-mz.122-37.SE1.bin)but the standby ip Command is not available on the interface ,  the problem in that IOS or in config

We have a Cisco 3845 router configured as a voice gateway with multi SIP trunks. But when it reachs 200 calls traffic, the CPU increase to 60-70% and caused by CCSIP_SPI_CONTROL process.CPU utilization for five seconds: 46%/30%; one minute: 54%; five...