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What is the size of large packets?

‎09-19-2013 01:06 AM

Hi,

 

What is the size of large packets, in the datasheet?

 

http://www.juniper.net/us/en/local/pdf/datasheets/1000281-en.pdf

 

Is it 1518, 1500, 576 or 512 byte?

 

Is this the link of IMIX?

http://en.wikipedia.org/wiki/Internet_Mix

Thanks!

Michael
JNCIA-JUNOS, JNCIS-ENT/SEC, JNCIP-ENT
(CCNA, ACMP, ACFE, CISE)
"http://www.thechampioncommunity.com/"
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6 REPLIES 6
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Re: What is the size of large packets?

‎09-19-2013 02:40 AM

I think this may help

http://kb.juniper.net/InfoCenter/index?page=content&id=KB11309

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Re: What is the size of large packets?

‎09-19-2013 11:16 PM
Hi lyndidon,

I was looking for SRX (not the EX... Setting Jumbo Frames on the EX-series Ethernet switches)...
Thanks!

Michael
JNCIA-JUNOS, JNCIS-ENT/SEC, JNCIP-ENT
(CCNA, ACMP, ACFE, CISE)
"http://www.thechampioncommunity.com/"
CONNECT EVERYTHING. EMPOWER EVERYONE.
Share & Learn. Knowledge is Power.

"If there's a will, there's a way!"
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Re: What is the size of large packets?

‎09-20-2013 05:14 AM

Generally manufacturers will use 1500-byte packets in their 'maximum throughput' stats.

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Re: What is the size of large packets?

‎09-20-2013 11:46 AM

Hello Michael,

The SRX can handle jumbo frames too. I had posted an official JNPR document in past, I don't remember exactly, maybe if I search  for it I will but check this out, maybe this helps. If not explain more.

[edit interfaces ge-0/0/1]
user2@SRX240-001# set mtu ?
Possible completions:
  <mtu>                Maximum transmit packet size (256..9192)
[edit interfaces ge-0/0/1]
user2@SRX240-001# set mtu 9192

[edit interfaces ge-0/0/1]
user2@SRX240-001# commit check
configuration check succeeds

[edit interfaces ge-0/0/1]
user2@SRX240-001# commit
commit complete

[edit interfaces ge-0/0/1]
user2@SRX240-001# show
mtu 9192;

[edit interfaces ge-0/0/1]
user2@SRX240-001#

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Re: What is the size of large packets?

[ Edited ]
‎09-25-2013 06:26 PM

What is the size of large packets, in the datasheet?

(http://www.juniper.net/us/en/local/pdf/datasheets/1000281-en.pdf)
a. 1518,
b. 1500,
c. 576,
d. 512 byte, or
e. Others, pls elaborate

Ans: _________

Pls share the link, if possible 🙂

Thanks!

Michael
JNCIA-JUNOS, JNCIS-ENT/SEC, JNCIP-ENT
(CCNA, ACMP, ACFE, CISE)
"http://www.thechampioncommunity.com/"
CONNECT EVERYTHING. EMPOWER EVERYONE.
Share & Learn. Knowledge is Power.

"If there's a will, there's a way!"
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Re: What is the size of large packets?

‎09-26-2013 11:59 AM

B.

 

The packet is 1500 bytes.  The frame (wrapped up in all its crunchy Ethernet candy shell) is 1518 bytes.

 

Of course, this could vary by vendor, and by test, but it's usually 1500-byte packets for max throughput.

-kr


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