Archive for Switching
UDLD and EtherChannel Configuration
Posted by: | CommentsA data centre network for a client I work with had an interesting issue this week. For no apparent reason some users within the data centre environment reported connection issues to hosts in the network. They were able to connect to some hosts but not others. Then all of a sudden connection would be restored but quickly lost again.
One of my colleagues was able to access two of the core data centre switches but I could only get to one. A very quick trip to the data centre floor and a console cable connection into the core data centre switches revealed the issue. Read More→
Popularity: 82% [?]
Changes to CCIE R&S Track
Posted by: | CommentsCisco has announced some major changes to the CCIE Routing and Switching track. You can read the official statement here which contains links to the new written exam and lab exam blueprints.
As well as the introduction of some new topics such as MPLS VPNs, zone based firewalls and new IPv6 topics, the changes also include new lab equipment and a new lab format. The CCIE lab will now feature 1841 and 3825 ISRs running the newer 12.4T IOS and there will only be 3560-E switches in the rack.
The lab exam will still be done over a total of 8 hours. However the lab now has two completely seperate sections. There wil be a two hour troubleshooting section, followed by a six hour configuration lab.
The written exam will also change and it may well contain simulation questions.
The Internetwork Expert blog has a good overview of the changes and also has a breakdown of how their materials will change to match the new exams.
Popularity: 55% [?]