Setting the port maximum transmis- sion unit, Setting the port maximum transmission unit – Verilink Net Engine (3150-30626-001) Product Manual User Manual
Page 128
NetEngine IAD User Guide
Router Configuration
109
Setting the
Port
Maximum
Transmis-
sion Unit
The MTU setting controls IP fragmentation of packets transmitted through
the specified port. Packet whose size is greater than the MTU value are
fragmented to fit into the MTU size limit.
To set a maximum transmission unit value for a port, follow these steps:
1. Type
M
on the Router Configuration menu to select Configure Port Max
Transmission Unit.
1. The IAD displays the port table for this interface and prompts for a port.
Port VPI VCI Encapsulation Type
PCR
Service
1
0
40 RFC 1483 (with LLC Encap)3641
UBR
Total = 3641 cps
Maximum PCR this interface can support = 3622 cps
Select Port: [1-8]
Type the port number and press Enter.
2. The IAD displays the current configuration and a prompt:
Current MTU configuration for SDSL, Port 1 is 1500.
Enter New MTU for this Port >
Type the new MTU value (100-1500) and press Enter. (When set at
1500, IP fragmentation is disabled).
3. The IAD saves the changes.
4. Continue with other configuration tasks, or press Escape to return to
the Router Configuration menu.
5. Reset the IAD (page
) when you finish router configuration.