May 2011
Intermediate to advanced
788 pages
23h 34m
English
Content preview from Network Warrior, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Cross-Stack EtherChannel
Sometimes you can create an EtherChannel across two physical switches. For example, when 3750s are stacked, the stack becomes a single logical entity and each physical switch acts like a blade. Configuring an EtherChannel across two physical switches in the stack is possible, and even recommended to eliminate single physical failure points. Nothing special is required to accomplish this once the stack has been configured—just configure each port to be in the same port-channel group:
3750-IOS(config)#int range g1/0/1 , g2/0/13750-IOS(config-if-range)#channel-group 10 mode onCreating a port-channel interface Port-channel 10
Cisco calls this cross-stack EtherChannel, and
it has some interesting capabilities and limitations. For example, you can
have 16 ports in a cross-stack EtherChannel, with 8 active and 8 in
standby. You cannot use PAgP, though, so your modes are confined to
active, passive, and
on.
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.