lacp suspend-individual

When an end-host configured with port-channel LACP or NIC- or link-teaming, it requires the adjacent switch ports to receive LACP PDU to be able to start the negotiation and bring the port-channel to Up and Operational status. Without the end-host sending these LACP PDU, the switch ports will keep its status as down. It sounds…

RIP Offset-List

Two routers R9 and R7 where R7 is connected to the rest of the network and R9 is the edge network. All of the network is exchanging routes via RIP version 2 with no-summary option.

Storm-Control

Storm Control blocks an interface upon receiving unicast, multicast, or broadcast packets flood based on the threshold value within one second period of time. This can be handy to prevent or at least reduce network flooding activities that can impact the network performance. When the offending traffic reaches the Rising Threshold (RT), the interface blocks…

MST Notes

History Spanning Tree Protocol (STP) is a protocol to ensure there is no loop in layer 2 network. This protocol was invented by Radia Perlman in 1985 and published as a standard originally as IEEE 802.1D-1990. In essence, STP works by sending a probe to every layer 2 switches and decides which link should be…

How to Fail CCIE Exam and Learn From It.

A note to myself. Time flies! It’s been a little more than a year since I wrote a post to my blog. Quite a few things happened in my life and priorities change. I decided to postpone my CCIE RS lab for sometime after several failed attempts. No, I’m not giving up yet, It’s just…

Congratulations to CCIE fellows!

Arden Packeer. CCIE #20716 http://ardenpackeer.com/blog/ccie-20716/ Victor Cappuccio. CCIE Number: 20657 http://vcappuccio.wordpress.com/2008/04/30/ccie-number-20657/ Ethan Banks. CCIE #20655 http://www.cciecandidate.com/?p=412 and Triple CCIE Joe Harris. CCIE # 6200 (R&S, Security & SP) http://6200networks.com/2008/04/27/i-passed/