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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Hi,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">We need to setup an L2 connection with MTU=1540 for a customer. After changing default-max-frame-size to 2000 and issue reload, we still can’t get replies to icmp with size
> 1500 bytes and df-bit set.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">1510 Byte, DF not set = OK<br>
=================================<br>
</span><span style="font-size:9.0pt;font-family:"Courier New"">hostname#ping x.x.x.x size 1510<br>
Type escape sequence to abort.<br>
Sending 5, 1510-byte ICMP Echos to x.x.x.x, timeout is 2 seconds:<br>
!!!!!<br>
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/8 ms<br>
</span><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><br>
<br>
<br>
1511 Byte DF not set = not OK<br>
=================================<br>
</span><span style="font-size:9.0pt;font-family:"Courier New"">hostname#ping x.x.x.x size 1511<br>
Type escape sequence to abort.<br>
Sending 5, 1511-byte ICMP Echos to x.x.x.x, timeout is 2 seconds:<br>
.....<br>
Success rate is 0 percent (0/5)<br>
</span><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><br>
1500 Byte, DF set = OK<br>
=================================<br>
</span><span style="font-size:9.0pt;font-family:"Courier New"">hostname#ping x.x.x.x size 1500 df-bit<br>
Type escape sequence to abort.<br>
Sending 5, 1500-byte ICMP Echos to x.x.x.x, timeout is 2 seconds:<br>
Packet sent with the DF bit set<br>
!!!!!<br>
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/6/8 ms<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><br>
1501 Byte, DF set = not OK<br>
=================================<br>
</span><span style="font-size:9.0pt;font-family:"Courier New"">hostname#ping x.x.x.x size 1501 df-bit<br>
Type escape sequence to abort.<br>
Sending 5, 1501-byte ICMP Echos to x.x.x.x, timeout is 2 seconds:<br>
Packet sent with the DF bit set<br>
.....<br>
Success rate is 0 percent (0/5)<br>
</span><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><br>
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">#show max-frame-size<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Default max frame size for ETH : 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Default max frame size for POS : 4474<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Slot 1 Port 1 Port 2 Port 3 Port 4<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 5 Port 6 Port 7 Port 8<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 9 Port 10 Port 11 Port 12<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 13 Port 14 Port 15 Port 16<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 17 Port 18 Port 19 Port 20<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Slot 2 Port 1 Port 2 Port 3 Port 4<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 5 Port 6 Port 7 Port 8<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 9 Port 10 Port 11 Port 12<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 13 Port 14 Port 15 Port 16<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 17 Port 18 Port 19 Port 20<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Slot 3 Port 1 Port 2 Port 3 Port 4<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Slot 4 Port 1 Port 2 Port 3 Port 4<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 5 Port 6 Port 7 Port 8<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 9 Port 10 Port 11 Port 12<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 13 Port 14 Port 15 Port 16<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> Port 17 Port 18 Port 19 Port 20<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> -------- -------- -------- --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> 2000 2000 2000 2000<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Is there anything else to be changed to accomplish this?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Adrian Luchian<o:p></o:p></span></p>
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