Configuration Example

802.1Q between Catalyst 3750 en PowerConnect 6226

René Jorissen on April 3, 2009 0 Comments • Tags: #6226 #8021q #acceptable-frame-type #catalyst #cisco #dell #general #native #powerconnect #pvid #switchport #tagged-only #trunk #vlan

Configuring a 802.1Q connection isn’t that difficult, but you need to know the command line interface and the appropriate commands. Today I configured a 802.1Q connection between a Cisco Catalyst 3750G and a Dell PowerConnect 6226, while configuring I played a little with the trunking options on the PowerConnect and I noticed the following: The … Read More

Switching

What is an UPLINK port?

René Jorissen on October 21, 2008 0 Comments • Tags: #0x9000 #keepalives #trunk #uplink

A colleague recently encountered some problems with keepalives on switch ports. He wrote a post about it. Keepalives are, quoted from his blog post: By default Cisco routers and switches periodically test their (Fast) Ethernet links by sending out Loopback frames (ethertype 0×9000) addressed to themselves. Call it a “L2 self-ping” if you will. In … Read More