11-01-2012 06:44 AM - edited 03-07-2019 09:48 AM
hi all,
I'm posting for question about mtu issue.
almost ethernet(fast/gigia/ten-giga...) uses 1500bytes of mtu.
as you know, mtu is a maxium size which router/switch can send for outgoing direction.(or onward)
so mtu is not a thing about receiving data size.
then how much data(bytes) router can receive?
whether data size is 1500 or bigger, router can receive it?
for example,
router has fast-ethernet 0/1 and 0/2
both interface mtu size=1500bytes
when 2000bytes data comes from 0/1 and outgoing 0/2
in my mind, router would receive the data well because of mtu=1500bytes has not a releation with receving data size.
after this, router would send the data with 2 packets(1500byte+500byte) to outgoing interface(0/2)
is my guess right?
if it's right, how much bytes router can receive? jumbo size(about 9000bytes)? or something else?
Thanks for reading this post.
regards.
Solved! Go to Solution.
11-01-2012 07:01 AM
There is a very good explanation in the following article: http://www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800d6979.shtml
11-01-2012 07:01 AM
There is a very good explanation in the following article: http://www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800d6979.shtml
11-01-2012 07:35 AM
+1
One of the best written articles on the Cisco website IMO. Well worth reading and re-reading. Also agree that the foundational understanding this gives you should mean you can answer the query yourself and gain a lot more in the process.
12-17-2012 01:34 AM
Thanks Jernej Vodopivec.
it's a good help to understand about my question.
Thanks a lot and have a good time!!
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