Re: Ping ethernet interface with datagram over 150 [7:63085]

2003-02-15 Thread Sean Kim
How are you doing, Marco? I actually DID think about this for a bit. To my knowledge Ethernet MTU is 1500, and ATM MTU depend on the connection. In my case we have 3M connection, but I am not sure what the MTU is because I have not looked at my partner company's 'sh int' result. But I would assu

Re: Ping ethernet interface with datagram over 150 [7:63085]

2003-02-15 Thread Sean Kim
Hello Erick, If that's the case, than wouldn't I have problem pinging any nodes (with over 1500 byte datagram) across the ATM link? But I do not have pinging any other nodes. It only happens, when I am sitting on my router pinging the other router's interface and vice-versa... Sean Erick B. wr

Re: Ping ethernet interface with datagram over 150 [7:63085]

2003-02-15 Thread Erick B.
Try this ping from the nodes: ping -f -l 1600 node-on-other-side-of-ATM If this doesn't ping, then the ATM connection is only letting 1500 through. The Ethernet router interface is fragmenting packets to 1500 bytes (1600 packet becomes 2 packets) from the nodes. When doing a ping from the router,

Re: Ping ethernet interface with datagram over 150 [7:63085]

2003-02-16 Thread Sean Kim
Hello Erick, My understanding is that, with the ethernet MTU being 1500, pinging with the datagram size of bigger than 1500 byte (with the non-fragment bit set) won't leave my NIC card. I tried the command anyway, and I got an error message saying that the packet needs to be fragmented first but

RE: Ping ethernet interface with datagram over 150 [7:63085]

2003-02-20 Thread Sean Kim
Hello Priscilla, Thank you very much for your feedback! I am yet to try the protocol analyzer... mostly because I don:t have one. But I DO have a sort of packet sniffer, maybe I can find out something with that. Debug command, I think I need somebody on the other side to send me ping packets wh