Switching

HelloI just had something strange happen and I am not sure why.I have a c3750 switch stack with 1 Master and 3 Member switches. All 4 switches have RPS power connected.Member switch 3 at the bottom of the stack showed that the onboard power supply h...

I need to block and allow certain MAC addresses to a particular interface on a Catalyst 4506 switch. I created an extended MAC access-list and applied it to an interface however it doesn't work.Can you have both IP extended ACLs and MAC extended ACL...

Hello, everyone:Does anybody have a GOOD document that discusses policy based routing in a data center -- or better yet, between 2 data centers. A document that will cover methods and cosiderations for things like Internet access failover between 2 d...

Some platforms stopped displaying NU values since IOS upgrade from 12.2(25)SE to 12.2(40)SE . C2960G-48TC-L continues supporting without any change. Why?Se also conversation on http://thwack.com/forums/p/7571/32060.aspx#32060Regards,Tomas

What happens if the firewall inside interface and a networked printer are unbeknownstly given the same static IP address? The above happened. The network ;melted down'. The digital phone going P2P to HQ degraded as the day went on--low band width m...

I just want to make sure that you can take different port configuration 3750 switches and put them in a cluster together. Anyone know any reason you can't???

Wondering if this is possible. I have a situation where I have a I have a pair of 7201 at the network edge. They each have an uplink to an external network/AS via EBGP and the uplinks are Gig/E /30's. I don't want equal cost load balancing. I want...

Hi,I have two Catalyst 6500 and a Giga-Etherchannel of 2 links between them. One switch has a Sup-720 with IOS version 12.2(18)SXF1 and the other switch has a Sup2-MSFC2 running IOS version 12.1(20)E2.Now here is the very strange behaviour :I want to...

Hi all, at my workplace we have 2 core multilayer switches providing routing and vlans, I guess its a collapsed backbone, all my edge switches connect to both of these core switches. The plan is to have another building 200 meters away with quite a f...