June 2007
Intermediate to advanced
600 pages
18h 19m
English
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Interface Ranges
Interface ranges are a very useful addition to IOS. Instead of entering the same commands on multiple interfaces, you can specify a range of interfaces, and then enter the commands once. When you apply commands to an interface range, the parser will replicate the commands on each interface within the range. On a switch with 96 interfaces, this can save hours of time—especially during initial configurations.
Interface ranges are composed of lists of interfaces. Interfaces can be specified individually or grouped in concurrent ranges. Individual interfaces are separated by commas, while ranges are shown as the starting and ending interfaces separated by hyphens. Here, I'm accessing the two interfaces g1/0/10 and g1/0/12:
3750(config)#interface range g1/0/10 , g1/0/12
3750(config-if-range)#Once in config-if-range configuration mode, all commands you enter will be applied to every interface you've included in the specified range.
Here, I'm accessing the range of ports g1/0/10 through (and including) g1/0/12. When
specifying a range, the second value only needs to include the significant value from the
interface. That is, I don't need to type g/1/0/10 -
g1/0/12, but only g1/0/10 - 12:
3750(config)#interface range g1/0/10 - 12
3750(config-if-range)#To reference multiple ranges, separate them with commas. Here, I'm referencing the
ranges g1/0/10 through g1/0/12 and g1/0/18 through g1/0/20:
3750(config)#interface range g1/0/10 - 12 , g1/0/18 - 20
3750(config-if-range)#Not only ...
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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.