Switching

Hi..I configured ISDN like following.Router 1.Loopback 0ip address 10.5.11.18 255.255.255.240interface Dialer7 ip unnumbered Loopback0 encapsulation ppp dialer pool 1 dialer idle-timeout 30 dialer caller 233****890 dialer-group 1 no cdp enable ppp au...

In Our environment, there are two interconnected cat 6500 switch and a bunch of 3750 stack switches connected to each 6500 with etherchannel. We already created one monitor session to IDS staff for all VLANs on core1 switch. But there is not any moni...

Maybe there's some simulator of switch or ruter, better for me with option of changing original firmware of cisco on this simulator ?

On April 3rd, I posted a message entitled: Routing, Cisco 2821, problems with copy tftp. Laurent responded correctly saying that I had to tell the router which interface to use for tftp. I have a similar issue with another site. I have an IPSEC tunne...

Guys, I have a question about VTP pruning. I'm running a test environment with 2 vtp servers and several vtp clients. Everything is running perfectly so far, but I want to see if it's possible to run vtp pruning with these two vtp servers so that t...

Is there a bug, the macro command in config mode is not there !?

We are starting to add redundancy to our network, in the form of L3 rings, L2 loops w/ STP, Etherchannel, and 3750 stacks.Can any one recommend software or things to monitor on the switch and routers, that will let me know how long convergence takes ...

Hello All,I have a strange problem and I hope someone here can help me. Here is a brief explanation of the problem:I have a Cisco 3550 layer 3 switch, which is configured with multiple Vlans and inter Vlan routing is enabled. Most of the Vlans have...

GuysI have a developer in our team who uses virtual box for development purposes. Virtual box has built in switching capabilities which means the switch sends BPDU's on the interface. Throughout my LAN I have BPDUGuard enabled and PortFast for access...

I got a problem here, the HQ and the branch connected by the mpls which is belongs to bell. Now ,the branch can not reach the serer in the HQ. I check the branch , the router is ok, But can not ping the server . but when I ping the branch from our c...

Hi guys, I will try my best to be as clear as possible.I'm junior Network Admin and just start to work in this small company.Currently i have one ISP, 100mbps symetric link:Internet > ISP1 > ISP SWiTCH > CISCOPiX1 AND CiSCOPiX2Each CiscoPix is also c...