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MTU size recommendations for LHCONE

Problem description

abc

MTU size recommendations

abc

Vendor specific commands

Brocade/Extreme NetIron

Configuration

default-max-frame-size 9216

interface ve 10
 ip mtu 9000
 ipv6 mtu 9000

Debug

telnet@router# show interface ve 10 | inc MTU
  Internet address is 10.0.0.1/30, IP MTU 9000 bytes, encapsulation ethernet
  ipv6 address fe80::22:23ff:fe8a:e00 link-local, IPv6 MTU 9000 bytes

telnet@router# sh int eth 1/1 | inc MTU
  MTU 9216 bytes, encapsulation ethernet

Cisco

Juniper Junos

Configuration

set interfaces et-0/0/10 mtu 9216
=or=
set interfaces ae10 mtu 9216

set interfaces irb unit 10 family inet mtu 9000
set interfaces irb unit 10 family inet6 mtu 9000

Debug

user@device> show interfaces irb.10 | grep MTU 
    Protocol inet, MTU: 9000
    Protocol inet6, MTU: 9000

user@device> show interfaces et-0/0/10 | grep MTU 
  Link-level type: Ethernet, MTU: 9216, LAN-PHY mode, Speed: 100Gbps, BPDU Error: None, Loop Detect PDU Error: None, Ethernet-Switching Error: None,
    Protocol eth-switch, MTU: 9216

Best practices

  1. abc
  2. def
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Topic revision: r2 - 2018-11-27 - EdoardoMARTELLI
 
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