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Viptela Documentation

mtu

vpn interface mtu—Set the maximum MTU size of packets on the interface.

vManage Feature Template

For all Viptela devices:

Configuration ► Templates ► VPN Interface Bridge
Configuration ► Templates ► VPN Interface Cellular (for vEdge cellular wireless routers only)
Configuration ► Templates ► VPN Interface Ethernet
Configuration ► Templates ► VPN Interface GRE
Configuration ► Templates ► VPN Interface PPP
Configuration ► Templates ► VPN Interface PPP Ethernet

Command Hierarchy

vpn vpn-id  
  interface interface-name    
    mtu bytes

Options

MTU Size
bytes
MTU size, in bytes. For cellular interfaces, the maximum MTU is 1428 bytes. For IRB interfaces, the maximum MTU is 1500 bytes. For PPP interfaces, the maximum MTU is 1492 bytes.
Range: 576 through 2000 bytes
Default: 1500

Operational Commands

show interface

Example

Reduce the MTU size to support subinterfaces:

vpn 0
​  interface ge0/0
    mtu 1496

Release Information

Command introduced in Viptela Software Release 14.1.​
In Release 16.3, maximum MTU changed from 1804 bytes to 2000 bytes.

Additional Information

See the Configuring Interfaces article for your software release.
bfd color pmtu-discovery
pmtu
tcp-mss-adjust

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