Switching

Is there any way to filter a range of MAC's? Specifically as this way...i want to filter all the combinations of this MAC's 00008011-xx-xx!!!

Hello, I have a customer who suffered a crash of his 4507R with dual Sup IV supervisor 2 weeks ago.The primary one has not come to life, it only turns on the POWER led and only the "ODD" UTILIZATION leds, all in green.The secondary, that at time of t...

Hi,We had an outage for one of our enterprise customer few days back. Upon recieving complaint we checked the network by capturing the traffic and found that there was ARP broadcast upto 40% of the total traffic captured and whole network was almost ...

Imagine I am trying to test ACLs and validate whether a given IP could communicate with a target server.My goal in this case below is to ping target server=10.66.206.5 as if I wasa client IP=10.66.217.131.Isn't possible to do this with extended ping?...

Hi there, imagine I am cleaning up access-lists. If you see an access-list like the one below, would you try to consolidate it? For example, I could do "permit ip any 172.66.217.22 0.0.0.1" and consolidate #20 and #30. Then I thought about it and it ...

Hican anybody expalin me what Vlan mapping is Is the same as private vlans?

Hello,Has anyone had success with configuring VLAN mapping on a Cat6500? I have tried to enable it on a single port, but when I enable it multiple ports are affected. I receive the following notice when enabling on a port:VLAN mapping is also change...

I've got a WS-X6748-GE-TX that i want to put into my 6509 Sup720 system. I need to upgrade the IOS for the system to be compatible with the module. I've got dual Sup720s running RPR+ at the moment. The question is, can I install the 6748, upgrade ...

My question is:Can an IPv6 host learn its default gateway using only stateless autoconfiguration or it needs a stateless DHCP to learn the default gateway?Thanks.

We have 6 switches in a cluster. I've read quite a bit the last couple of days about it, but time isn't on my side. I just don't get how I'm supposed to switch between switches since there's only one IP address. I tried to set up a vlan only to ha...

I've got a standard pair of Cat 6500s w/ HSRP in my core, running OSPF. We're about to connect to a satellite campus over a routed connection (running over DWDM). The topology is a pretty basic collapsed core design with our closet switches running...