Switching

Hi all, I was wondering if someone could give me some help on setting up an E1 PRI link between a 2 call manager expresses? I have a CME on a 2621 and a 2821.I have phones registered to both of them and there is an E1 card in each router connected us...

Hi,I've a slight problem with my Cisco 871w router which is plugged in to Motorola modem. When I check my download speed on speedtest.net I'm getting 57 Mbps when connected directly to the modem. When I'm connected to 871w router the max speed that I...

Hi Everyone,Sorry to bother with this, but i'm getting crazy.I have a few switchs i want to monitor with Zabbix using SNMP. I'm able to get many informations (bandwith...) but i can't access CPU and memory stuff.For example, for one switch (Cisco IOS...

Hello,Im a "almost" CCNA and Im working almost 2 years now on a company that gives services to several clients....for which establishes many encrypted tunnels over private and public links. Over the time I have learn by trial and error how to set up ...

Guys we have two type of swicthes First of all i need to know what does 1000BT means ...will it have a normal RJ4 connector can i use both a port-channel to the core??? secondly the SFP on this can i use a RJ 45 SFP??? as my core swicth has only RJ 4...

Good morningA 6509 switch of one of our costumers presents the "ip helper address" configuration. Actually, the real DHCP service is located in a Windows Server.This feature works fine, but we are facing some issues related to the security policies r...

hi , i  have a toplogy as below :http://www13.0zz0.com/2014/08/17/12/125759738.pngim wondering which is the best choice to root bride ?is it Core-1 switch at the top ?? or distribution-2 switch in the middle of the network ?? note that core 1 is the ...

Hello,I'm trying to come up with a solution to add DHCP to a LAN config similar to the diagram below:  InfoBoth cores are connected via an etherchannel.VLANs 30,40,50,60,70.Both cores are in HSRP groups for each VLAN (for example "standby 30 has an I...

I have a problem with 4 cisco 2960-s Switches in a stack.2 of the switches are 2960-48fps-l1 is a 2960-f48fps-land 1 is a 2960-24pd-lThe problem I ran into is the 2960-f48fps-L was running version 15 out of the box so I got a version mismatch when I ...

Not sure if this should be posted here or in the ASA forums.  I have an Active/Standby pair of ASA 5515x connected to a 2960S stack.  Connections look like so:     ASA 1------Failover interface------ASA2      |                                        ...

Do Cisco engineers review this community at all? I am working on the latest version of QoS standard for our Enterprise and noticed the following conflicting information officially provided by Cisco. My question relates to ingress/pre-ring Strict Prio...

Hitoday i add a host in a vlan, but it can't ping itself and get  ping transmit failed general failure unless remove the spaning portfast command. i try difeerent vendor PC, IBX... ,HX..,DXl..., all host can't ping itself.the reason is the portfast? ...