Switching

Guys, I'm about to start a replacement of access switches project from the current 2900's to 3750 stacks. We're deploying almost all of the L2 security features and although I'm well adept to all of them technically, this is the first time I'm going ...

Hi folksI've just split a gigabit interface on my 7301 into two dot1q interfaces and set the other end point interface (Cat6513) as a trunk only allowing the two VLANs.Before this setup I had no incoming errors on the 7301 but after about half a day ...

I am working on configuring switches with VLANs and trunking these switches using dot1q encapsulation. I configured two ports from two switches as trunk ports properly, but when executing a sho cdp neigh or trying to ping one another, there is no lin...

i have a dhcp server on valn 3 and somebody has put somekind of vmware software on pc with dhcp on that... am not able to find that dhcp server now.. I have the macaddress of that server... i am not able to ping that server too..please let me know ho...

Does the Nexus 7000 support virtual switching like the sup 720 does? (VSS 1440)

If I telnet via the network to a 3640 router I immediately see what appears to be 3 failed password attempts. Password: Password: % Bad passwordsConnection closed by foreign host.If I telnet via serial connection to the console port it works fine. I ...

HI all,I encounter a problem.I have two devices interconnected. One is non-Cisco server and another is 3750 core switch. If there are traffic between, the non-Cisco server can ping 3750. When there is no traffic, then server can't ping 3750. But 3750...

hi allim having problems seting up multicasting within our internal LAN. We have an ASA (rather than a router). Please advise on how best to get this setup.When sending multicasts between pc's on same subnet 192.168.1.xx/24 it works, but when sending...

HelloI have a Router Cisco 850, with C850 Software (C850-ADVSECURITYK9-M), Version 12.4(4)T7.I need to do NAT between an IP 19x.xxx.xxx.13 to three IPs: 192.168.210.248, 192.168.210.249 and 192.168.210.250.I do this configuration:interface FastEthern...

Hi Team,There is a switch-1 and from switch-1(C2950 Software (C2950-C3H2S-M), Version 12.0(5.3)WC(1)) one server is directly connected that have ip address 10.15.20.215.Once I ping the server ip address from switch-1. I got the reply.But his ARP entr...

Hi all, I have heard of ip source guard, can anyone tell me what it is ?

Hi all, when designing a data centre, do we connect the servers to the access switches ?

I'm trying to nail down this issue - is it possible to upgrade switch stack members individually, so as to minimise disruption.eg. upload softwareset boot statementsreload switch 2when switch 2 is up, reload switch 1The upgrade guide assumes that you...

Hi Folks, I have this network: Clients--RTR1----Net1----RTR2----Web | | |-----Net2-----| In this case net1 and 2 are equal cost paths and thus packets can go via either. However, RTR1 sends the SYN of a TCP flow over ...