→ Applies to: SynetoOS 4.x

Step 1. Connect to SynetoOS appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

Step 2 (optional). Change into Solaris shell (in case you're directed to an unsupported shell)

un sh

Step 3. Get root privileges

sudo su -

Step 4. Test the transmission of packets with a specific MTU value (replace <ip> with the target IP, <packets_size> with the MTU packet size to send and <number_of_transmissions_to_send> with the number of total packets to send)

ping -s <ip> <packets_size> <number_of_transmissions_to_send>

EXAMPLE

ping -s 10.1.10.209 1400 1

EXAMPLE OUTPUT 

Successful transmission

root@SynetoOS2:/var/storage/support# ping -s 10.1.10.209 1400 1 PING 10.1.10.209: 1400 data bytes 1408 bytes from 10.1.10.209: icmp_seq=0. time=10.923 ms----10.1.10.209 PING Statistics---- 1 packets transmitted, 1 packets received, 0% packet loss round-trip (ms) min/avg/max/stddev = 10.923/10.923/10.923/-nan

Failed transmission

root@SynetoOS2:/var/storage/support# ping -s 10.1.10.209 1400 1 PING 10.1.10.209: 1400 data bytes----10.1.10.209 PING Statistics---- 1 packets transmitted, 0 packets received, 100% packet loss

The default MTU size is 1500, however, for certain network technologies, reducing the MTU size and allowing fragmentation can help eliminate some connectivity issues occurring at the protocol level.