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How To Enable Jumbo Frames on S-Series,K-Series, N-Series, and 7100-Series

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TitleHow To Enable Jumbo Frames on S-Series,K-Series, N-Series, and 7100-Series
Objective
How To Enable Jumbo Frames on S-Series,K-Series, N-Series, and 7100-Series
Environment
  • S-Series
  • K-Series
  • N-Series
  • 7100-Series
  • All Firmware Versions
Procedure
Type,

set port jumbo <PORT_STRING> enable
Type the following command to verify Jumbo frames are Oper enabled and Admin enabled. 
Oper disabled indicates the connected device is not configured for Jumbo Frames and Admin disabled  means the switch itself is not configured for  Jumbo frames.
 
S-Series(su)->show port jumbo ge.1.43-46
 
* Applicable only if port jumbo is enabled
 
    Port     Oper     Admin     MTU      MTU   MTU   MTU   MTU   Application
            Status   Status  Dynamic   Min   Max  Oper* Admin Delta   Name(size)
---------- -------- -------- -------- ----- ----- ----- ----- ----- ------------
   ge.1.43 Disabled Disabled Disabled  1519 10239 10239 10239     0
   ge.1.44  Enabled  Enabled Disabled  1519 10239  9216  9216     0
   ge.1.45  Enabled  Enabled Disabled  1519 10239  9216  9216     0
A
 
Additional notes
  • When enabling jumbo frame support on our Modular Switches/Routers, the maximum frame size defaults to 10239 bytes for untagged packets and supports 10243 bytes for tagged packets. \
  • Jumbo frame size can be set to any value between 1523 – 10239 bytes. The standard Ethernet frame MTU for untagged packets is 1518 bytes including the 18 Ethernet header bytes. The standard Ethernet frame MTU for tagged packets is 1522 bytes.
  • See Article 1569 SSA and Jumbo frames for SSA limitations

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