Etherchannels and STP
Kaminsky
Member Posts: 1,235
in CCNA & CCENT
GAH!
So I am just finishing up on STP and I read this from Bryant Advantage.
Quote: Etherchannels are commonly used in today's networks, and I'd be surprised if you didn't get a question or two about them on your CCNA exam.
No mention of Etherchannels in my books or PDFs... GAH!
OK, so I will have to read up about it but is it likely that there will be a question on it? Regardless of whether it does come up on my ccna, the words "commonly used" means I should if I want to make the grade in a junior networking job. The principal of Etherchannels and the increased bandwidth is sound at least.
Any recent CCNA exam sitters seen anything on Etherchannels on their exam?
So I am just finishing up on STP and I read this from Bryant Advantage.
Quote: Etherchannels are commonly used in today's networks, and I'd be surprised if you didn't get a question or two about them on your CCNA exam.
No mention of Etherchannels in my books or PDFs... GAH!
OK, so I will have to read up about it but is it likely that there will be a question on it? Regardless of whether it does come up on my ccna, the words "commonly used" means I should if I want to make the grade in a junior networking job. The principal of Etherchannels and the increased bandwidth is sound at least.
Any recent CCNA exam sitters seen anything on Etherchannels on their exam?
Kam.
Comments
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bmauro
Member Posts: 307
http://www.cisco.com/application/pdf/en/us/guest/products/ps628/c2001/ccmigration_09186a00800c6eee.pdf
Page 513 begins the Etherchannel description and configuration. It was in both my books (Sybex and Cisco Press). -
Humper
Member Posts: 647
It is EEEEEEAAASSY
EtherChannel is taking generally two or more physical ports and creating one logical port. An EtherChannel groups also effectively combines your bandwidth. If you had 2 - 100Mbps FDX ports you will have 400Mbps TX/RX with an EtherChannel. There is two types of encapsulations LACP and PAgP. With spanning tree, since a EtherChannell creates a logical port, spanning tree treats it as such and the ports defined in a etherchannel will not be blocked. If you create a etherchannel and running show spanning-tree it will show the etherchannel as Po1 and in FWD with a weird cost.Now working full time!
